In order to promote the healthy and sustainable development of citrus industry in Guangxi and reduce the harm of Diaphorina citri and citrus Huanglongbing on citrus industry,the paper summarizes the occurrence of D.ci...In order to promote the healthy and sustainable development of citrus industry in Guangxi and reduce the harm of Diaphorina citri and citrus Huanglongbing on citrus industry,the paper summarizes the occurrence of D.citri in Guangxi,and put forward comprehensive control technique,so as to provide the reference for guiding prevention and control of major pests in citrus industry.展开更多
Unfavorable environmental cues severely affect crop productivity resulting in significant economic losses to farmers. In plants, multiple regulatory genes, such as the WRKY transcription factor (TF) family, modulate t...Unfavorable environmental cues severely affect crop productivity resulting in significant economic losses to farmers. In plants, multiple regulatory genes, such as the WRKY transcription factor (TF) family, modulate the expression of defense genes. However, the role of the pineapple WRKY genes is poorly understood. Here, we studied the pineapple WRKY gene, AcWRKY28, by generating AcWRKY28 over-expressing transgenic pineapple plants. Overexpression of AcWRKY28 enhanced the salt stress resistance in transgenic pineapple lines. Comparative transcriptome analysis of transgenic and wild-type pineapple plants showed that “plant-pathogen interaction” pathway genes, including 9calcium-dependent protein kinases (CPKs), were up-regulated in AcWRKY28 over-expressing plants. Furthermore, chromatin immunoprecipitation and yeast one-hybrid assays revealed AcCPK12, AcCPK3, AcCPK8, AcCPK1, and AcCPK15 as direct targets of AcWRKY28. Consistently, the study of AcCPK12 over-expressing Arabidopsis lines showed that AcCPK12 enhances salt, drought, and disease resistance. This study shows that AcWRKY28 plays a crucial role in promoting salt stress resistance by activating the expression of AcCPK genes.展开更多
The level of agricultural product sales is one of the important factors that directly affect the economic income of rural villagers.Due to the limitations of geographical conditions and the lagging economic and social...The level of agricultural product sales is one of the important factors that directly affect the economic income of rural villagers.Due to the limitations of geographical conditions and the lagging economic and social development,there are major problems in the sales of agricultural products in Shishan area.To better help the sales of agricultural products in Shishan area of northwest Guangxi,Nandan County of Hechi City is taken as research object.Current situation of agricultural products production and sales channels in Nandan County is understood,and problems existing in the sales of agricultural products in Nandan County are analyzed.Moreover,targeted opinions and suggestions are put forward from the aspect of innovating the sales channels of agricultural and sideline products,thereby helping quality improvement and development of agricultural industry.展开更多
The present study was conducted to assess the molecular characterization and genetic diversity amongst natural populations of Myrica rubra in Guangxi Zhuang Autonomous Region, China, thus to provide scientific evidenc...The present study was conducted to assess the molecular characterization and genetic diversity amongst natural populations of Myrica rubra in Guangxi Zhuang Autonomous Region, China, thus to provide scientific evidence for germplasm conservation and exploitation. Using ISSR (inter-simple sequence repeats) markers, the level of genetic variation and the molecular characterization of 10 natural populations of M. rubra, originated from Guangxi Zhuang Autonomous Region in China, were performed. Based on 11 primers, 123 clear and reproducible DNA fragments were generated, of which 95 (77.24%) were polymorphic. The average value of Nei’s gene diversity (He) was 0.268. The coefficient of genetic differentiation (Gst) was 0.341, revealing that 34.1% of the total molecular variance existed among populations. The Mantel statistical testing showed that the genetic distance was correlated to the geographic distance, but the correlation was not significant. Ten populations were divided into two big clusters according to unweighted pair group method with arithmetic mean (UPGMA) analysis. One consisted of populations of Rongxian (RX), Hepu (HP), Liangqing (LQ), Marshan (MS), Lingshan (LS) and Shansi (SS), which originated from the southern Guangxi, while the other was composed of Guanyang (GY) and Lingui (LG) populations of northern Guangxi, Huanjiang (HJ) populations of northwestern Guangxi and Shanglin (SL) populations of southern Guangxi. The level of genetic variation in wild M. rubra population distributed in Guangxi is high. Gene drift within the population was responsible for genetic variation in wild M. rubra in Guangxi, and the effect of the genetic flow among inter-populations was not significant. Classification of wild M. rubra populations was correlated to climate and environment. The molecular characterization and diversity assessment of M. rubra is of immense value for planning conservation of its genetic resources and their exploitation for further studies.展开更多
According to the understanding of current situation of Guangxi selenium-containing passion fruit products and the advantages and disadvantages of related product markets,the corresponding improvement plans were propos...According to the understanding of current situation of Guangxi selenium-containing passion fruit products and the advantages and disadvantages of related product markets,the corresponding improvement plans were proposed for the supply and demand of products and the adjustment of industrial development,so as to provide theoretical data support for optimizing the industrial structure and increasing the market share of selenium-rich passion fruit in Guangxi.展开更多
[Objective] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to provide scientific references for integrated control against...[Objective] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to provide scientific references for integrated control against sugarcane diseases. [Method] Species and occurrence degrees of major fugal diseases in sugarcane cultivation areas of Guangxi were investigated through randomized surveys, farmer interviews, literature references and location investigations from 2009 to 2011. Diseased sugarcane samples were collected and their species were identified through pathogen isolated culture and other relevant methods. [Result] Thirteen species of fungal diseases were identified in the survey, including pineapple disease [Thielaviopsis paradoxa (de Seynes) V. Hohnel], smut(Ustilago scitaminea Sydow), top rot disease (Fusarium moniliforme Sheldon), rust (Puccinia melanocephala H.﹠P. Syd.), leaf scald disease (Stagonospora sacchari Lo et Ling), red rot disease (Colletotrichum falcatum Went), zonate spot disease (Phyllosticta saccharicola P. Henn.), leaf red spot disease [Pellicularia sasakii (Shirai) Ito], white rash disease (Elsinoe sacchari L.), eye spot [Helminthosporium sacchari (Breda de Haan) Butler], yellow spot [Mycovellosiella koepkei (kruger) Deighton], brown stripe [Bipolaris stenospilum (Drechs.) Shoem.]and brown spot (Cercospora longipes Butler). Smut, rust, top rot, and pineapple disease were the most rampantly detrimental to quality and yield of sugarcane. [Conclusion] Smut is the most serious sugarcane disease; it is urgent to breed sugarcane varieties with high resistance and excellent agronomic characters to replace current sugarcane varieties susceptible to diseases.展开更多
Agricultural non-point source pollution has become the main part of water pollution prevention and control in China. This paper made a brief introduction to the causes and hazards of agricultural non-point source poll...Agricultural non-point source pollution has become the main part of water pollution prevention and control in China. This paper made a brief introduction to the causes and hazards of agricultural non-point source pollution and the current situation of agricultural non-point source pollution prevention and control in China. In view of the serious agricultural non-point source pollution in water environment of Guangxi and the difference in quality of drinking water between urban and rural areas,it came up with recommendations for strengthening agricultural non-point source pollution prevention and control from scientific distribution,linked operation and maintenance,popular science education,and legal system construction,to guarantee safe and healthy drinking water in rural areas.展开更多
The soil in Guangxi has been severely acidified,restricting sustainable development of agriculture.In this paper,based on the screening of organic fertilizer additives,a method for the production of acidification-resi...The soil in Guangxi has been severely acidified,restricting sustainable development of agriculture.In this paper,based on the screening of organic fertilizer additives,a method for the production of acidification-resistant organic fertilizer specific for acid red soil improvement was proposed,and the developed acidification-resistant organic fertilizer was used in sugarcane experiment.The results showed that in the treatment that the specific acidification-resistant organic fertilizer was applied,the yield of sugarcane significantly increased,the p H value of soil effectively increased,the physical and chemical properties of soil improved,and the contents of microorganisms and available nutrients in soil increased.展开更多
Due to its unique economic value,Moringa oleifera Lam. has become a tree species with great development potential. This paper firstly introduced the value of development and utilization of M. oleifera in nutrition,med...Due to its unique economic value,Moringa oleifera Lam. has become a tree species with great development potential. This paper firstly introduced the value of development and utilization of M. oleifera in nutrition,medicinal,industrial,greening,etc. Then,focusing on the current development status of M. oleifera industry in Guangxi and combining Guangxi's resource conditions,it came up with recommendations for the comprehensive development and rational utilization of M. oleifera. Besides,it made a prediction of the prospect of Se-enriched M.oleifera industry in Guangxi.展开更多
Rice has different colors of pericarp,such as red,white and black. Red rice pericarp is rich in proanthocyanins,which have antioxidant properties and are beneficial to human health. In the present study,we analyzed th...Rice has different colors of pericarp,such as red,white and black. Red rice pericarp is rich in proanthocyanins,which have antioxidant properties and are beneficial to human health. In the present study,we analyzed the red-pericarp gene Rc of 419 rice landraces in Guangxi by genome-wide association study( GWAS),and validated that the Rc gene regulated the red pericarp trait in rice. By analyzing the genomic DNA of 97 red-pericarp rice cultivars,we identified two new alleles in C139 and C323. Then,the exons of Rc^(C139) and Rc^(C323) were sequenced with Sanger method,and the results demonstrated that the natural mutations within Rc gene resulted in the two alleles Rc^(C139) and Rc^(C323).展开更多
This study was to find out the suitable application amount of plant-derived humic acid organic fertilizer for selenium-rich rice production in northern Guilin area by applying the fertilizer at different amounts.The r...This study was to find out the suitable application amount of plant-derived humic acid organic fertilizer for selenium-rich rice production in northern Guilin area by applying the fertilizer at different amounts.The results showed that plant-derived humic acid organic fertilizer could effectively activate selenium in selenium-rich soil,and then promote the uptake of selenium by rice.With costs,selenium enrichment and rice yield as the main evaluation indicators,A4 was chosen as the best treatment,that is,the application of 4 500 kg/hm^2 of plant-derived humic acid organic fertilizer as base fertilizer could achieve the best benefit.展开更多
In order to find out the situation of the innovation and development of the flower industry in Guangxi,the paper analyzed the development status of flower industry in Guangxi,summarized the achievements and experience...In order to find out the situation of the innovation and development of the flower industry in Guangxi,the paper analyzed the development status of flower industry in Guangxi,summarized the achievements and experience of technological innovation,and the prominent problems in the development of flower industry.On the basis of the analysis,it came up with some recommendations for the development of the flower industry in Guangxi,so as to provide theoretical reference for the development of the flower industry in Guangxi.展开更多
This paper aims to understand the current situation of heavy metal pollution in paddy soil in West Guangxi,to provide a reference for heavy metal pollution control. The content of Cd,Pb and As of 50 soil samples of cu...This paper aims to understand the current situation of heavy metal pollution in paddy soil in West Guangxi,to provide a reference for heavy metal pollution control. The content of Cd,Pb and As of 50 soil samples of cultivation layer( 0- 20 cm),taken from main rice producing areas in West Guangxi,is determined. The environment quality of soil is assessed with the single factor index and the potential ecological risk of paddy soil is evaluated with the potential ecological risk index of Hakanson. The results show that the mean content of Cd,Pb,and As in paddy soil samples is 0. 941,26. 46 and 10. 16 mg / kg,respectively. The Cd content of 54. 0% soil samples and the As content of 2. 0% soil samples are higher than the standard II National Soil Environment Quality,and Cd in paddy soil has high potential ecological risk. Heavy metal pollution in paddy soil in West Guangxi is mainly Cd pollution.展开更多
To provide reference for selenium resource exploitation of soil,many selenium-tolerant strains were isolated from selenium-rich soil in Guangxi. The dilution spread plate method and selenium-added culture method were ...To provide reference for selenium resource exploitation of soil,many selenium-tolerant strains were isolated from selenium-rich soil in Guangxi. The dilution spread plate method and selenium-added culture method were used to screen the selenium-tolerant strains from the soils which were sampled from the main Selenium-rich areas such as Yongfu,Bama,Yulin Hanshan,Guiping and Tengxian. The results showed that 8 strains with high selenium tolerance were obtained,which could tolerate the selenium concentration above 10 000 μg/m L in solid medium. Among the 8 strains,YLB1-33 showed the highest selenium tolerance,and it could still grow weakly in the solid medium with selenium concentration of 29 000 μg/m L. The sequencing of 16 S rD NA and phylogenetic analysis showed that YLB1-6 was identified as Bacillus cereus,BMB2-1 and TXB1-8 were identified as Bacillus pumilus,GPB2-5 was identified as Bacillus thuringiensis,YLB1-26 and YLB1-33 were identified as Bacillus licheniformis,and YLB1-2 and YFB1-8 were identified as Serratia marcescens. The finding of selenium-tolerance strains had potential application value on promoting the utilization of selenium soil resources and the development of selenium-rich agricultural products in Guangxi.展开更多
Guangxi is the largest sugar producing area in China and shoulders heavy responsibilities for the development of China’s sugar industry.In recent years,China’s sugar industry has been greatly impacted by the foreign...Guangxi is the largest sugar producing area in China and shoulders heavy responsibilities for the development of China’s sugar industry.In recent years,China’s sugar industry has been greatly impacted by the foreign low-cost sugar industry,and the planting area of sugarcane has been declining.The development foundation of the sugar industry is the sugarcane seed industry.Under the impact of foreign low-price sugar,China’s sugarcane industry is under greater pressure for development,and the sugarcane seed industry shoulders more arduous responsibilities.In order to cope with international competition,the development of Guangxi’s sugarcane industry urgently needs to establish a development model oriented towards improved varieties,scale and mechanization of sugarcane,so as to promote the high-quality development of Guangxi’s sugarcane industry and effectively respond to the pressure of competition in the international sugarcane industry.展开更多
Fruit color is an important trait inf luencing the commercial value of eggplant fruits.Three dominant genes(D,P and Y)cooperatively control the anthocyanin coloration in eggplant fruits,but none has been mapped.In thi...Fruit color is an important trait inf luencing the commercial value of eggplant fruits.Three dominant genes(D,P and Y)cooperatively control the anthocyanin coloration in eggplant fruits,but none has been mapped.In this study,two white-fruit accessions(19141 and 19147)and their F2 progeny,with 9:7 segregation ratio of anthocyanin pigmented versus non-pigmented fruits,were used for mapping the D and P genes.A high-density genetic map was constructed with 5270 SNPs spanning 1997.98 cM.Three QTLs were identified,including two genes on chromosome 8 and one on chromosome 10.Gene expression analyses suggested that the SmANS on chromosome 8 and SmMYB1 on chromosome 10 were the putative candidate genes for P and D,respectively.We further identified(1)a SNP leading to a premature stop codon within the conserved PLN03176 domain of SmANS in 19141,(2)a G base InDel in the promoter region leading to an additional cis-regulatory element and(3)a 6-bp InDel within the R2-MYB DNA binding domain of SmMYB1,in 19147.Subsequently,these three variations were validated by PARMS technology as related to phenotypes in the F2 population.Moreover,silencing of SmANS or SmMYB1 in the purple red fruits of F1(E3316)led to inhibition of anthocyanin biosynthesis in the peels.Conversely,overexpression of SmANS or SmMYB1 restored anthocyanin biosynthesis in the calli of 19141 and 19147 respectively.Our findings demonstrated the epistatic interactions underlying the white color of eggplant fruits,which can be potentially applied to breeding of eggplant fruit peel color.展开更多
Among the numerous fruit species of Baccaurea ramiflora Lour.,‘LR’(white flesh)and‘BR’(pink flesh)are two kinds of local strains with high edibility.In order to study the metabolic causes of taste differences,we p...Among the numerous fruit species of Baccaurea ramiflora Lour.,‘LR’(white flesh)and‘BR’(pink flesh)are two kinds of local strains with high edibility.In order to study the metabolic causes of taste differences,we performed the non-targeted metabonomics analysis of‘LR’and‘BR’using LC-MS/MS.541 metabolites were totally identified,and 45 kinds of metabolites(carbohydrates,fatty acids,flavonoids and terpenoids,etc.)were different between the two strains.The results indicate L-sorbose,D-(+)-glucose,citric acid,L-phenylalanine and oleamide,α-eleostearic acid were the main primary metabolites.The significant difference existed in pathways of unsaturated fatty acids between the studied two strains by pathway enrichment analysis.The results demonstrate that the different in composition,as well as the abundance of primary and secondary metabolites may be the potential causes of taste differences,which provides a new insight into the possible metabolic factors setting off the changing taste of B.ramiflora.展开更多
Based on the investigation of 56 soil samples( 0-30 cm) in citrus orchards of Guangxi,the content of soil organic matter and available nutrients as well as their correlations in the citrus orchards were studied. The r...Based on the investigation of 56 soil samples( 0-30 cm) in citrus orchards of Guangxi,the content of soil organic matter and available nutrients as well as their correlations in the citrus orchards were studied. The results showed that soil was rich in organic matter,and the proportion of soil samples deficient in available N,P and K was 30. 36%,32. 14% and 28. 57% respectively. Soil was seriously deficient in soil available Ca,Mg and B,while the content of soil available Fe and Cu in soil was too high. There were significant or extremely significant positive or negative correlations between soil pH,organic matter and several available nutrients. It is recommended to apply Mg fertilizer,B fertilizer,lime or other alkaline fertilizer and reduce the spraying of fungicides containing Cu in the citrus orchards.展开更多
This paper summarizes the research progress and major achievements of the coupling effect of water and fertilizer on grape cultivation in China and abroad in recent years,emphatically analyzes the application status a...This paper summarizes the research progress and major achievements of the coupling effect of water and fertilizer on grape cultivation in China and abroad in recent years,emphatically analyzes the application status and some problems of the coupling effect of water and fertilizer on double-cropping grape cultivation mode in Guangxi Zhuang Autonomous Region,discusses the key problems to be further resolved,and finally makes the relevant recommendations.展开更多
According to the quarantine procedures for sugarcane introduction,thirty-three sugarcane varieties / materials from the United States,Bangladesh,Thailand and some other countries were quarantined. The result showed th...According to the quarantine procedures for sugarcane introduction,thirty-three sugarcane varieties / materials from the United States,Bangladesh,Thailand and some other countries were quarantined. The result showed that main diseases and pests that are concerned in quarantine were undiscovered. In addition,molecular detection results of Fiji disease and leaf scald disease were negative; detection results of mosaic in six varieties / materials were positive; detection results of yellow leaf syndrome in eight varieties / materials were positive.展开更多
基金Supported by Science and Technology Major Project of Guangxi Province(GK AA20108003,GK AA22036002)Science and Technology Major Project of Nanning City(20212141)+6 种基金Collaborative Innovation Project of Chinese Academy of Agricultural Sciences-Guangxi Academy of Agricultural Sciences(CAAS-GXAAS-XTCX2019026-2)Guangxi Special Crops Experimental Station(G TS202201)Wuming District Science and Technology Project of Nanning City(2210201)Jiangnan District Science and Technology Project of Nanning City(2020020102)GNK(2021YT051,2022JM32)Guangxi Citrus Huanglongbing Prevention and Control Engineering Technology Research Center"Cultivation and Pest Control"Post Expert of Guangxi Citrus Innovation Team(nycytxgxcxtd-2021-05-02)。
文摘In order to promote the healthy and sustainable development of citrus industry in Guangxi and reduce the harm of Diaphorina citri and citrus Huanglongbing on citrus industry,the paper summarizes the occurrence of D.citri in Guangxi,and put forward comprehensive control technique,so as to provide the reference for guiding prevention and control of major pests in citrus industry.
基金supported by the Natural Science Foundation of Guangxi (Grant No.2022GXNSFBA035523)the China Postdoctoral Science Foundation (Grant No.2022MD713731)+1 种基金the Science and Technology Major Project of Guangxi Gui Ke (Grant No.AA22067096)the project of Guangxi featured fruit innovation team on pineapple breeding and cultivation post under national modern agricultural industry technology system (Grant No.nycytxgxcxtd-17-05)。
文摘Unfavorable environmental cues severely affect crop productivity resulting in significant economic losses to farmers. In plants, multiple regulatory genes, such as the WRKY transcription factor (TF) family, modulate the expression of defense genes. However, the role of the pineapple WRKY genes is poorly understood. Here, we studied the pineapple WRKY gene, AcWRKY28, by generating AcWRKY28 over-expressing transgenic pineapple plants. Overexpression of AcWRKY28 enhanced the salt stress resistance in transgenic pineapple lines. Comparative transcriptome analysis of transgenic and wild-type pineapple plants showed that “plant-pathogen interaction” pathway genes, including 9calcium-dependent protein kinases (CPKs), were up-regulated in AcWRKY28 over-expressing plants. Furthermore, chromatin immunoprecipitation and yeast one-hybrid assays revealed AcCPK12, AcCPK3, AcCPK8, AcCPK1, and AcCPK15 as direct targets of AcWRKY28. Consistently, the study of AcCPK12 over-expressing Arabidopsis lines showed that AcCPK12 enhances salt, drought, and disease resistance. This study shows that AcWRKY28 plays a crucial role in promoting salt stress resistance by activating the expression of AcCPK genes.
基金Supported by Guangxi Environmental Sustainable Rural Development Demonstration Project(55261-0012022)Special Action Project of"Strengthening Agriculture and Enriching the People"and"Six Ones"of the Scientific and Technological Pioneer(GUINONGKEMENG202214)。
文摘The level of agricultural product sales is one of the important factors that directly affect the economic income of rural villagers.Due to the limitations of geographical conditions and the lagging economic and social development,there are major problems in the sales of agricultural products in Shishan area.To better help the sales of agricultural products in Shishan area of northwest Guangxi,Nandan County of Hechi City is taken as research object.Current situation of agricultural products production and sales channels in Nandan County is understood,and problems existing in the sales of agricultural products in Nandan County are analyzed.Moreover,targeted opinions and suggestions are put forward from the aspect of innovating the sales channels of agricultural and sideline products,thereby helping quality improvement and development of agricultural industry.
基金supported by the National Natural Science Foundation of China (30560007)
文摘The present study was conducted to assess the molecular characterization and genetic diversity amongst natural populations of Myrica rubra in Guangxi Zhuang Autonomous Region, China, thus to provide scientific evidence for germplasm conservation and exploitation. Using ISSR (inter-simple sequence repeats) markers, the level of genetic variation and the molecular characterization of 10 natural populations of M. rubra, originated from Guangxi Zhuang Autonomous Region in China, were performed. Based on 11 primers, 123 clear and reproducible DNA fragments were generated, of which 95 (77.24%) were polymorphic. The average value of Nei’s gene diversity (He) was 0.268. The coefficient of genetic differentiation (Gst) was 0.341, revealing that 34.1% of the total molecular variance existed among populations. The Mantel statistical testing showed that the genetic distance was correlated to the geographic distance, but the correlation was not significant. Ten populations were divided into two big clusters according to unweighted pair group method with arithmetic mean (UPGMA) analysis. One consisted of populations of Rongxian (RX), Hepu (HP), Liangqing (LQ), Marshan (MS), Lingshan (LS) and Shansi (SS), which originated from the southern Guangxi, while the other was composed of Guanyang (GY) and Lingui (LG) populations of northern Guangxi, Huanjiang (HJ) populations of northwestern Guangxi and Shanglin (SL) populations of southern Guangxi. The level of genetic variation in wild M. rubra population distributed in Guangxi is high. Gene drift within the population was responsible for genetic variation in wild M. rubra in Guangxi, and the effect of the genetic flow among inter-populations was not significant. Classification of wild M. rubra populations was correlated to climate and environment. The molecular characterization and diversity assessment of M. rubra is of immense value for planning conservation of its genetic resources and their exploitation for further studies.
基金Supported by Science and Technology Majior Project of Guangxi(GK AA17202026,GK AA17202010-2)Guangxi Se-enriched Characteristic Crop Test Station(G TS2016011)+1 种基金Basic Scientific Research Business Collaborative Innovation Project of Guangxi Academy of Agricultural Sciences(GNK2017YZ03)Scientific Research and Technology Development Plan Project of Xixiangtang District,Nanning City(2015312)
文摘According to the understanding of current situation of Guangxi selenium-containing passion fruit products and the advantages and disadvantages of related product markets,the corresponding improvement plans were proposed for the supply and demand of products and the adjustment of industrial development,so as to provide theoretical data support for optimizing the industrial structure and increasing the market share of selenium-rich passion fruit in Guangxi.
基金Supported by Science and Technology Development Fund of Guangxi Academy of Agriculture (201005)Guangxi Innovation Team of Special Project for Construction of Modern Agricultural Technology System (Sugarcane)(NYCYTXGXCXTD-02)Capacity-building of Guangxi Sugarcane Engineering and Technology Research Center (GKN 1131B01)
文摘[Objective] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to provide scientific references for integrated control against sugarcane diseases. [Method] Species and occurrence degrees of major fugal diseases in sugarcane cultivation areas of Guangxi were investigated through randomized surveys, farmer interviews, literature references and location investigations from 2009 to 2011. Diseased sugarcane samples were collected and their species were identified through pathogen isolated culture and other relevant methods. [Result] Thirteen species of fungal diseases were identified in the survey, including pineapple disease [Thielaviopsis paradoxa (de Seynes) V. Hohnel], smut(Ustilago scitaminea Sydow), top rot disease (Fusarium moniliforme Sheldon), rust (Puccinia melanocephala H.﹠P. Syd.), leaf scald disease (Stagonospora sacchari Lo et Ling), red rot disease (Colletotrichum falcatum Went), zonate spot disease (Phyllosticta saccharicola P. Henn.), leaf red spot disease [Pellicularia sasakii (Shirai) Ito], white rash disease (Elsinoe sacchari L.), eye spot [Helminthosporium sacchari (Breda de Haan) Butler], yellow spot [Mycovellosiella koepkei (kruger) Deighton], brown stripe [Bipolaris stenospilum (Drechs.) Shoem.]and brown spot (Cercospora longipes Butler). Smut, rust, top rot, and pineapple disease were the most rampantly detrimental to quality and yield of sugarcane. [Conclusion] Smut is the most serious sugarcane disease; it is urgent to breed sugarcane varieties with high resistance and excellent agronomic characters to replace current sugarcane varieties susceptible to diseases.
基金Supported by State Key Research and Development Program of Ministry of Science and Technology"Soil Passivation-Physiological Barrier-Enrichment and Removal Technology in Paddy Field with Mild Cadmium Contamination"(2016YED0800705-01)Key Research and Development Program of Guangxi"Research and Demonstration of Remediation Technology in Cadmium and Lead Polluted Paddy Field"(Gui Ke AB16380084)+2 种基金Key Agricultural Science and Technology Project of Guangxi"Integration,Research and Development of Heavy Metal Pollution Prevention Technology for Paddy Field"(201528)Scientific Research and Technological Development Program Project of Nanning City"Research and Demonstration of Integrated Ecological Restoration Technology for Heavy Metal Cadmium Polluted Paddy Field in Nanning"(20162105)Scientific and Technological Service Ability and Party Informationization Construction of Ecological Comprehensive Demonstration Village in Jianning No.1 Team of Xixiangtang District of Nanning(20152054-13)
文摘Agricultural non-point source pollution has become the main part of water pollution prevention and control in China. This paper made a brief introduction to the causes and hazards of agricultural non-point source pollution and the current situation of agricultural non-point source pollution prevention and control in China. In view of the serious agricultural non-point source pollution in water environment of Guangxi and the difference in quality of drinking water between urban and rural areas,it came up with recommendations for strengthening agricultural non-point source pollution prevention and control from scientific distribution,linked operation and maintenance,popular science education,and legal system construction,to guarantee safe and healthy drinking water in rural areas.
基金Supported by Science and Technology Planning Project of Guangxi,China(Guike AD19245169,Guike AD18281072,Guike AA17202037,Guike AB16380164).
文摘The soil in Guangxi has been severely acidified,restricting sustainable development of agriculture.In this paper,based on the screening of organic fertilizer additives,a method for the production of acidification-resistant organic fertilizer specific for acid red soil improvement was proposed,and the developed acidification-resistant organic fertilizer was used in sugarcane experiment.The results showed that in the treatment that the specific acidification-resistant organic fertilizer was applied,the yield of sugarcane significantly increased,the p H value of soil effectively increased,the physical and chemical properties of soil improved,and the contents of microorganisms and available nutrients in soil increased.
基金Supported by Scientific Research and Technological Development Program of Xixiangtang District of Nanning City(201710304)Key Research and Development Program of Guangxi(Gui Ke AB16380088)+5 种基金Guangxi Se-enriched Crop Experiment Station(Gui TS2016011)Key Research and Development Program of Qingxiu District of Nanning City(2016039)Scientific Development Fund Project of Guangxi Academy of Agricultural Sciences(2017JM01,2017JM03,2015JM23)Technological Achievement Transformation Project of Guangxi Academy of Agricultural Sciences(2017NZ04)Key Science and Technology Project of Guangxi(Gui Ke AA17202026-2)Special Fund Project for Innovation Driven Development of Guangxi(Gui Ke AA17202019,Gui Ke AA17202019-4,and Gui Ke AA17202019-1)
文摘Due to its unique economic value,Moringa oleifera Lam. has become a tree species with great development potential. This paper firstly introduced the value of development and utilization of M. oleifera in nutrition,medicinal,industrial,greening,etc. Then,focusing on the current development status of M. oleifera industry in Guangxi and combining Guangxi's resource conditions,it came up with recommendations for the comprehensive development and rational utilization of M. oleifera. Besides,it made a prediction of the prospect of Se-enriched M.oleifera industry in Guangxi.
基金Supported by The National Key Research and Development Program of China(2016YFD0100101-03)Science Research and Technology Development Program of Guangxi(AB16380117)+1 种基金the Fund for Talent Team of Guangxi Academy of Agricultural Sciences(2015YT15)the Special Fund for Basic Science Research of Guangxi Academy of Agricultural Sciences(2015JZ16,2015JZ17,2017YM18)
文摘Rice has different colors of pericarp,such as red,white and black. Red rice pericarp is rich in proanthocyanins,which have antioxidant properties and are beneficial to human health. In the present study,we analyzed the red-pericarp gene Rc of 419 rice landraces in Guangxi by genome-wide association study( GWAS),and validated that the Rc gene regulated the red pericarp trait in rice. By analyzing the genomic DNA of 97 red-pericarp rice cultivars,we identified two new alleles in C139 and C323. Then,the exons of Rc^(C139) and Rc^(C323) were sequenced with Sanger method,and the results demonstrated that the natural mutations within Rc gene resulted in the two alleles Rc^(C139) and Rc^(C323).
基金Supported by the Special Fund for the Construction of Guangxi Innovation Team of China Agriculture Research Systemthe Agricultural Key Science and Technology Project of Guangxi(201621,201604)+6 种基金the Program for the Scientific Research and Technology Development in Guangxi(Guike AD16380194)the Special Fund for the Innovation-Driven Development in Guangxi(Guike AA17202026)the Key Research and Development Program of Guangxi(Guike AB16380207)the Science Research and Technology Development Program of Guilin City(2016011202,20170116-4)the Science Research and Technology Development Program of Nanning City(20165370)the Special Fund for the Collaborative Innovation of Fundamental Research,Guangxi Academy of Agricultural Sciences(Guinongke 2017YZ03)the Fund for Science and Technology Development of Guangxi Academy of Agricultural Sciences(2017JM07)
文摘This study was to find out the suitable application amount of plant-derived humic acid organic fertilizer for selenium-rich rice production in northern Guilin area by applying the fertilizer at different amounts.The results showed that plant-derived humic acid organic fertilizer could effectively activate selenium in selenium-rich soil,and then promote the uptake of selenium by rice.With costs,selenium enrichment and rice yield as the main evaluation indicators,A4 was chosen as the best treatment,that is,the application of 4 500 kg/hm^2 of plant-derived humic acid organic fertilizer as base fertilizer could achieve the best benefit.
基金Supported by Science and Technology Major Project of Guangxi(Gui Ke AA17204046)Scientific Research and Technological Development Program Project of Nanning City(20175031-5)+3 种基金Project of Guangxi Academy of Agricultural Sciences(Gui Nong Ke 2015YT89 Gui Nong Ke 2017YZ05 Gui Nong Ke 2017YM44 Gui Nong Ke 2018JZ07)
文摘In order to find out the situation of the innovation and development of the flower industry in Guangxi,the paper analyzed the development status of flower industry in Guangxi,summarized the achievements and experience of technological innovation,and the prominent problems in the development of flower industry.On the basis of the analysis,it came up with some recommendations for the development of the flower industry in Guangxi,so as to provide theoretical reference for the development of the flower industry in Guangxi.
基金Supported by Guangxi Scientific Research and Technological Development Planning Project(1123001-9B)Special Research Project of Guangxi Academy of Agricultural Sciences(2013YZ192015YT32)
文摘This paper aims to understand the current situation of heavy metal pollution in paddy soil in West Guangxi,to provide a reference for heavy metal pollution control. The content of Cd,Pb and As of 50 soil samples of cultivation layer( 0- 20 cm),taken from main rice producing areas in West Guangxi,is determined. The environment quality of soil is assessed with the single factor index and the potential ecological risk of paddy soil is evaluated with the potential ecological risk index of Hakanson. The results show that the mean content of Cd,Pb,and As in paddy soil samples is 0. 941,26. 46 and 10. 16 mg / kg,respectively. The Cd content of 54. 0% soil samples and the As content of 2. 0% soil samples are higher than the standard II National Soil Environment Quality,and Cd in paddy soil has high potential ecological risk. Heavy metal pollution in paddy soil in West Guangxi is mainly Cd pollution.
基金Supported by the Program for the Scientific Research and Technology Development in Guangxi(Guikehe 415104001-22)the Science and Technology Planning Project of Guangxi(Guikegong 1598006-5-13)+2 种基金the Experiment Station for Selenium Featured Crops in Guangxi(Gui TS2016011)the Fund for Science and Technology Development and Scientific Research of Guangxi Academy of Agricultural Sciences(Guinongke 2015JM23,2017JM01,2017JM03)the Innovation-Driven Development Special Fund Project of Guangxi(Guike AA17202019-1&Guike AA17202019-4)
文摘To provide reference for selenium resource exploitation of soil,many selenium-tolerant strains were isolated from selenium-rich soil in Guangxi. The dilution spread plate method and selenium-added culture method were used to screen the selenium-tolerant strains from the soils which were sampled from the main Selenium-rich areas such as Yongfu,Bama,Yulin Hanshan,Guiping and Tengxian. The results showed that 8 strains with high selenium tolerance were obtained,which could tolerate the selenium concentration above 10 000 μg/m L in solid medium. Among the 8 strains,YLB1-33 showed the highest selenium tolerance,and it could still grow weakly in the solid medium with selenium concentration of 29 000 μg/m L. The sequencing of 16 S rD NA and phylogenetic analysis showed that YLB1-6 was identified as Bacillus cereus,BMB2-1 and TXB1-8 were identified as Bacillus pumilus,GPB2-5 was identified as Bacillus thuringiensis,YLB1-26 and YLB1-33 were identified as Bacillus licheniformis,and YLB1-2 and YFB1-8 were identified as Serratia marcescens. The finding of selenium-tolerance strains had potential application value on promoting the utilization of selenium soil resources and the development of selenium-rich agricultural products in Guangxi.
基金Supported by Special Project for Chairman Academician Advisor of Guangxi Zhuang Autonomous Region(ZH040040)Special Project for Central Leading Local Science and Technology Development(Gui Ke ZY19183007)
文摘Guangxi is the largest sugar producing area in China and shoulders heavy responsibilities for the development of China’s sugar industry.In recent years,China’s sugar industry has been greatly impacted by the foreign low-cost sugar industry,and the planting area of sugarcane has been declining.The development foundation of the sugar industry is the sugarcane seed industry.Under the impact of foreign low-price sugar,China’s sugarcane industry is under greater pressure for development,and the sugarcane seed industry shoulders more arduous responsibilities.In order to cope with international competition,the development of Guangxi’s sugarcane industry urgently needs to establish a development model oriented towards improved varieties,scale and mechanization of sugarcane,so as to promote the high-quality development of Guangxi’s sugarcane industry and effectively respond to the pressure of competition in the international sugarcane industry.
基金supported by the National Natural Science Foundation of China(Grant No.31501755)the Guangdong Provincial Natural Science Foundation(Grant No.2021A1515012490)+2 种基金Major special projects of Guangxi science and technology program(AA22068088)the Department of agriculture and rural areas of Guangdong province of China,grant No.2022KJ110 and 2022KJ106the Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science,grant number R2019PY-JX003,R2019PYQF009,202114TD,R2021YJ-YB3019.
文摘Fruit color is an important trait inf luencing the commercial value of eggplant fruits.Three dominant genes(D,P and Y)cooperatively control the anthocyanin coloration in eggplant fruits,but none has been mapped.In this study,two white-fruit accessions(19141 and 19147)and their F2 progeny,with 9:7 segregation ratio of anthocyanin pigmented versus non-pigmented fruits,were used for mapping the D and P genes.A high-density genetic map was constructed with 5270 SNPs spanning 1997.98 cM.Three QTLs were identified,including two genes on chromosome 8 and one on chromosome 10.Gene expression analyses suggested that the SmANS on chromosome 8 and SmMYB1 on chromosome 10 were the putative candidate genes for P and D,respectively.We further identified(1)a SNP leading to a premature stop codon within the conserved PLN03176 domain of SmANS in 19141,(2)a G base InDel in the promoter region leading to an additional cis-regulatory element and(3)a 6-bp InDel within the R2-MYB DNA binding domain of SmMYB1,in 19147.Subsequently,these three variations were validated by PARMS technology as related to phenotypes in the F2 population.Moreover,silencing of SmANS or SmMYB1 in the purple red fruits of F1(E3316)led to inhibition of anthocyanin biosynthesis in the peels.Conversely,overexpression of SmANS or SmMYB1 restored anthocyanin biosynthesis in the calli of 19141 and 19147 respectively.Our findings demonstrated the epistatic interactions underlying the white color of eggplant fruits,which can be potentially applied to breeding of eggplant fruit peel color.
基金Forestry Science and Technology Innovation Project of Guangdong province(2018KJCX023)National Science Foundation for Young Scientists of China(31801742)+2 种基金Guangdong Key Laboratory for Functional Substances in Medicinal Edible Resources and Healthcare Products(2021B1212040015)Science and Technology Major Project of Guangxi(Guike AA17204045-4)Science and Technology Project of Chongzuo,Guangxi(Chongkegong 2019029).
文摘Among the numerous fruit species of Baccaurea ramiflora Lour.,‘LR’(white flesh)and‘BR’(pink flesh)are two kinds of local strains with high edibility.In order to study the metabolic causes of taste differences,we performed the non-targeted metabonomics analysis of‘LR’and‘BR’using LC-MS/MS.541 metabolites were totally identified,and 45 kinds of metabolites(carbohydrates,fatty acids,flavonoids and terpenoids,etc.)were different between the two strains.The results indicate L-sorbose,D-(+)-glucose,citric acid,L-phenylalanine and oleamide,α-eleostearic acid were the main primary metabolites.The significant difference existed in pathways of unsaturated fatty acids between the studied two strains by pathway enrichment analysis.The results demonstrate that the different in composition,as well as the abundance of primary and secondary metabolites may be the potential causes of taste differences,which provides a new insight into the possible metabolic factors setting off the changing taste of B.ramiflora.
基金Supported by Research and Development Project of Yongning District,Nanning City,Guangxi(20170103B)
文摘Based on the investigation of 56 soil samples( 0-30 cm) in citrus orchards of Guangxi,the content of soil organic matter and available nutrients as well as their correlations in the citrus orchards were studied. The results showed that soil was rich in organic matter,and the proportion of soil samples deficient in available N,P and K was 30. 36%,32. 14% and 28. 57% respectively. Soil was seriously deficient in soil available Ca,Mg and B,while the content of soil available Fe and Cu in soil was too high. There were significant or extremely significant positive or negative correlations between soil pH,organic matter and several available nutrients. It is recommended to apply Mg fertilizer,B fertilizer,lime or other alkaline fertilizer and reduce the spraying of fungicides containing Cu in the citrus orchards.
基金Supported by Special Funds for Bagui Scholars Construction ProjectSpecial Research Funds of Guangxi Academy of Agricultural Sciences(2015JZ30)+2 种基金National Key Technology R&D Program(2014BAD16B05)Scientific Research and Technological Development Project in Guangxi(14251007)Team Project of Guangxi Academy of Agricultural Sciences(2015YT82)
文摘This paper summarizes the research progress and major achievements of the coupling effect of water and fertilizer on grape cultivation in China and abroad in recent years,emphatically analyzes the application status and some problems of the coupling effect of water and fertilizer on double-cropping grape cultivation mode in Guangxi Zhuang Autonomous Region,discusses the key problems to be further resolved,and finally makes the relevant recommendations.
基金Supported by Special Fund for Modern Agro-industry Technology Research System(NYCYTXGXCXTD-2)Scientific Research and Technological Development Project of Guangxi Guangxi Zhuang Autonomous Region(GKN1347012-1+2 种基金GKN 1347004-2)Natural Science Foundation of Guangxi Zhuang Autonomous Region(11166-02)Internaltional Scientific Exchange Program(2013DFA31600)
文摘According to the quarantine procedures for sugarcane introduction,thirty-three sugarcane varieties / materials from the United States,Bangladesh,Thailand and some other countries were quarantined. The result showed that main diseases and pests that are concerned in quarantine were undiscovered. In addition,molecular detection results of Fiji disease and leaf scald disease were negative; detection results of mosaic in six varieties / materials were positive; detection results of yellow leaf syndrome in eight varieties / materials were positive.
