In order to scientifically evaluate the values of Cucurbita moschata cultivars, main botanical characters including the initial flowering date, the first fruiting node, fruit length, fruit stem length, stem diameter, ...In order to scientifically evaluate the values of Cucurbita moschata cultivars, main botanical characters including the initial flowering date, the first fruiting node, fruit length, fruit stem length, stem diameter, internode length, the transverse and longitudinal diameters of the largest leaf, single fruit weight, flesh thickness and soluble solid content of 41 cultivars were measured for conducting diversity, correlation and cluster analysis. The results revealed that the pumpkin cultivars showed large variations in fruit stem length, single fruit weight, fruit length and flesh thickness, but small variations in initial flowering date. Significant, even highly significant correlations were found among the tested traits. Cluster analysis demonstrated that the 41 old Cucurbita moschata cultivars were divided into three groups, of which multiple traits of Group 1 were better than those in the other two groups. High similarities existed in three groups and the cultivars in each group. This research provided basis for selecting excellent traits and parents for the breeding of hybrids.展开更多
Background The provision of environmental enrichments to Muscovy ducks could reduce the expression of the aggressive behaviors.The aim of the present study was to evaluate the effects of black soldier fly(BSF)and yell...Background The provision of environmental enrichments to Muscovy ducks could reduce the expression of the aggressive behaviors.The aim of the present study was to evaluate the effects of black soldier fly(BSF)and yellow mealworm(YM)live larva provision on Muscovy duck performance,excreta corticosterone metabolites(ECM),behavior,and blood parameters.Methods A total of 1263-day-old female Muscovy ducklings were allotted to 18 pens(6 replicates/treatment,7 birds/pen)and assigned to 3 experimental treatments:a control group fed commercial feed,and two experimental treatments fed commercial feed plus the 5%(based on the expected daily feed intake,as fed basis)of BSF and YM live larvae(BSF and YM groups,respectively).A two-phase feeding program was applied:starter(from 3 to 31 days of age)and grower-finisher(from 32 to 55 days of age).The live weight,average daily gain,average daily feed intake,and feed conversion ratio were calculated.Larva consumption times were collected,and video recordings were performed during 3 periods(P)each day:the hour before(P1),during(P2),and after(P3)the larva administration.ECM were evaluated at 3,31,and 55-day-old.Finally,the total red and white blood cell counts,serum proteins,lipids,and liver and renal function serum enzymes were evaluated on 12 birds/treatment.Results The experimental treatment did not affect the growth performance of the birds(P>0.05).Larva consumption times were always similar between the two insect species,except at 14–18 days of age,were BSF larvae were consumed faster than YM larvae(P<0.001).The birds showed less walking activity during P2,and preening behavior increased in YM birds during P3.The C birds increased the attack behavior over the weeks(P<0.05).During weeks 1–3 the YM group reduced the attack frequency(P1>P3;P<0.05).Finally,the provision of live BSF and YM larvae significantly reduced the ECM at 55 days of age and the heterophil to lymphocyte ratio(P<0.05).Conclusions Live BSF and YM larva supplementation in Muscovy duck improves duck welfare,without impairing birds'growth performance.展开更多
为探明不同砧穗组合对南瓜[Cucurbita moschata(Duch. ex Lam.)Duch. ex Poiret]成活率、生长势、产量及果实品质的影响,指导南瓜生产,以黑杆南瓜为砧木,品沃207、奶油小王子、娃娃南瓜2K为接穗,研究不同砧穗组合南瓜的生长情况、单瓜...为探明不同砧穗组合对南瓜[Cucurbita moschata(Duch. ex Lam.)Duch. ex Poiret]成活率、生长势、产量及果实品质的影响,指导南瓜生产,以黑杆南瓜为砧木,品沃207、奶油小王子、娃娃南瓜2K为接穗,研究不同砧穗组合南瓜的生长情况、单瓜重、果实中可溶性蛋白质、淀粉、维生素C、可溶性糖含量的变化。结果表明,奶油小王子/黑杆南瓜亲和性好,与自根苗相比株高和茎粗均增长了40%以上,除可溶性蛋白质外,淀粉、可溶性糖、维生素C含量明显提高,但增产效果不明显;品沃207/黑杆南瓜亲和性好,增产达35.94%,茎粗增长明显,但可溶性蛋白质、淀粉、维生素C、可溶性糖含量提高不明显;娃娃南瓜2K/黑杆南瓜嫁接成活率仅有85.21%,亲和性较差,植株生长受限,单瓜重降低了12.97%,品质下降;因此,奶油小王子/黑杆南瓜、品沃207/黑杆南瓜2个砧穗组合嫁接效果较好,综合性状优于自根苗,可在生产中推广应用。展开更多
选取9个南瓜[Cucurbita moschata(Duchesne ex Lam.)Duchesne ex Poir.]品种进行果实品质及营养成分含量的比较,筛选出适宜山东省莱阳市种植的优质南瓜品种。结果表明,红板栗南瓜最轻,德丰银栗和红板栗南瓜的果实品质较好;甜蜜蜜红蜜南...选取9个南瓜[Cucurbita moschata(Duchesne ex Lam.)Duchesne ex Poir.]品种进行果实品质及营养成分含量的比较,筛选出适宜山东省莱阳市种植的优质南瓜品种。结果表明,红板栗南瓜最轻,德丰银栗和红板栗南瓜的果实品质较好;甜蜜蜜红蜜南瓜的维生素C含量最高,红板栗南瓜次之;德丰银栗的可溶性糖含量最高。可见,德丰银栗和红板栗南瓜在物理性状和营养成分上表现的综合品质较优,是莱阳市值得推广和发展的优良品种。展开更多
[Objective] The aim was to clone the CmNAC gene from Cucurbita moschata and analyze the sequence characteristics. [Method] A pair of degenerate primers was designed based on the conserved sequences of NAC gene from Br...[Objective] The aim was to clone the CmNAC gene from Cucurbita moschata and analyze the sequence characteristics. [Method] A pair of degenerate primers was designed based on the conserved sequences of NAC gene from Brassica napus, Lycopersicon esculentum and Capsicum annuum. NAC transcription factor gene was amplified by RT-PCR from Cucurbita moschata leaves and cloned into pMD-19T vector; then the recombinant clones were sequenced. Finally, the sequences of nucleic acid and amino acid were analyzed using BLAST and DNAMAN software. [Result] The NAC transcription factor gene cloned from C. moschata included 442 bp encoding 147 amino acids, named CmNAC. The NAC gene fragment contained a conserved region like other plant NAC genes and belonged to the NAC family ATAF1/2 subfamily. [Conclusion] The stress resistance related gene NAC cloned from C. moschata is a foundation for further study on the biological function of the gene and plant genetic engineering.展开更多
Cucurmosin 2, a type 1 ribosome-inactivating protein （RIP） isolated from sarcocarp of Cucurbita moschata, has been crystallized by the vapor-diffusion method using PEG6000 as the precipitant. The crystals belong to ...Cucurmosin 2, a type 1 ribosome-inactivating protein （RIP） isolated from sarcocarp of Cucurbita moschata, has been crystallized by the vapor-diffusion method using PEG6000 as the precipitant. The crystals belong to the orthorhombic space group P212121, with unit cell parameters a = 55.853, b = 65.507, c = 91.754 А, and have one molecule per asymmetric unit. X-ray data have been collected to 1.8А, using a synchrotron source.展开更多
基金Supported by Special Fund for Agro-scientific Research in the Public Interest from the Ministry of Agriculture of China(201303112)the 12th National Five-year Plan for Science and Technology Program of Rural Areas(2012BAD02B03-17)~~
文摘In order to scientifically evaluate the values of Cucurbita moschata cultivars, main botanical characters including the initial flowering date, the first fruiting node, fruit length, fruit stem length, stem diameter, internode length, the transverse and longitudinal diameters of the largest leaf, single fruit weight, flesh thickness and soluble solid content of 41 cultivars were measured for conducting diversity, correlation and cluster analysis. The results revealed that the pumpkin cultivars showed large variations in fruit stem length, single fruit weight, fruit length and flesh thickness, but small variations in initial flowering date. Significant, even highly significant correlations were found among the tested traits. Cluster analysis demonstrated that the 41 old Cucurbita moschata cultivars were divided into three groups, of which multiple traits of Group 1 were better than those in the other two groups. High similarities existed in three groups and the cultivars in each group. This research provided basis for selecting excellent traits and parents for the breeding of hybrids.
基金supported by the PRIMA programme under grant agreement No 2015,project SUSTAvian FEEDsupported by the European Unionthe visit by Achille Schiavone(22216/IV/23-Poultry MED project)funded by the Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia in connection with the“Jiménez De La Espada”Regional Programme for Mobility,Collaboration and Knowledge Exchange。
文摘Background The provision of environmental enrichments to Muscovy ducks could reduce the expression of the aggressive behaviors.The aim of the present study was to evaluate the effects of black soldier fly(BSF)and yellow mealworm(YM)live larva provision on Muscovy duck performance,excreta corticosterone metabolites(ECM),behavior,and blood parameters.Methods A total of 1263-day-old female Muscovy ducklings were allotted to 18 pens(6 replicates/treatment,7 birds/pen)and assigned to 3 experimental treatments:a control group fed commercial feed,and two experimental treatments fed commercial feed plus the 5%(based on the expected daily feed intake,as fed basis)of BSF and YM live larvae(BSF and YM groups,respectively).A two-phase feeding program was applied:starter(from 3 to 31 days of age)and grower-finisher(from 32 to 55 days of age).The live weight,average daily gain,average daily feed intake,and feed conversion ratio were calculated.Larva consumption times were collected,and video recordings were performed during 3 periods(P)each day:the hour before(P1),during(P2),and after(P3)the larva administration.ECM were evaluated at 3,31,and 55-day-old.Finally,the total red and white blood cell counts,serum proteins,lipids,and liver and renal function serum enzymes were evaluated on 12 birds/treatment.Results The experimental treatment did not affect the growth performance of the birds(P>0.05).Larva consumption times were always similar between the two insect species,except at 14–18 days of age,were BSF larvae were consumed faster than YM larvae(P<0.001).The birds showed less walking activity during P2,and preening behavior increased in YM birds during P3.The C birds increased the attack behavior over the weeks(P<0.05).During weeks 1–3 the YM group reduced the attack frequency(P1>P3;P<0.05).Finally,the provision of live BSF and YM larvae significantly reduced the ECM at 55 days of age and the heterophil to lymphocyte ratio(P<0.05).Conclusions Live BSF and YM larva supplementation in Muscovy duck improves duck welfare,without impairing birds'growth performance.
文摘为探明不同砧穗组合对南瓜[Cucurbita moschata(Duch. ex Lam.)Duch. ex Poiret]成活率、生长势、产量及果实品质的影响,指导南瓜生产,以黑杆南瓜为砧木,品沃207、奶油小王子、娃娃南瓜2K为接穗,研究不同砧穗组合南瓜的生长情况、单瓜重、果实中可溶性蛋白质、淀粉、维生素C、可溶性糖含量的变化。结果表明,奶油小王子/黑杆南瓜亲和性好,与自根苗相比株高和茎粗均增长了40%以上,除可溶性蛋白质外,淀粉、可溶性糖、维生素C含量明显提高,但增产效果不明显;品沃207/黑杆南瓜亲和性好,增产达35.94%,茎粗增长明显,但可溶性蛋白质、淀粉、维生素C、可溶性糖含量提高不明显;娃娃南瓜2K/黑杆南瓜嫁接成活率仅有85.21%,亲和性较差,植株生长受限,单瓜重降低了12.97%,品质下降;因此,奶油小王子/黑杆南瓜、品沃207/黑杆南瓜2个砧穗组合嫁接效果较好,综合性状优于自根苗,可在生产中推广应用。
文摘选取9个南瓜[Cucurbita moschata(Duchesne ex Lam.)Duchesne ex Poir.]品种进行果实品质及营养成分含量的比较,筛选出适宜山东省莱阳市种植的优质南瓜品种。结果表明,红板栗南瓜最轻,德丰银栗和红板栗南瓜的果实品质较好;甜蜜蜜红蜜南瓜的维生素C含量最高,红板栗南瓜次之;德丰银栗的可溶性糖含量最高。可见,德丰银栗和红板栗南瓜在物理性状和营养成分上表现的综合品质较优,是莱阳市值得推广和发展的优良品种。
基金Supported by Stress Resistant Plants Research Program from Beijing Municipal Commission of Education(5075101019)~~
文摘[Objective] The aim was to clone the CmNAC gene from Cucurbita moschata and analyze the sequence characteristics. [Method] A pair of degenerate primers was designed based on the conserved sequences of NAC gene from Brassica napus, Lycopersicon esculentum and Capsicum annuum. NAC transcription factor gene was amplified by RT-PCR from Cucurbita moschata leaves and cloned into pMD-19T vector; then the recombinant clones were sequenced. Finally, the sequences of nucleic acid and amino acid were analyzed using BLAST and DNAMAN software. [Result] The NAC transcription factor gene cloned from C. moschata included 442 bp encoding 147 amino acids, named CmNAC. The NAC gene fragment contained a conserved region like other plant NAC genes and belonged to the NAC family ATAF1/2 subfamily. [Conclusion] The stress resistance related gene NAC cloned from C. moschata is a foundation for further study on the biological function of the gene and plant genetic engineering.
基金supported by the National Natural Science Foundation of China (No. 39970872, 30772587)the Natural Science Foundation of Fujian Province (C97052,C0510012)+1 种基金Special Fund of Fujian Development and Reform Commission (2006-34)supported by the National Science Foundation of USA
文摘Cucurmosin 2, a type 1 ribosome-inactivating protein （RIP） isolated from sarcocarp of Cucurbita moschata, has been crystallized by the vapor-diffusion method using PEG6000 as the precipitant. The crystals belong to the orthorhombic space group P212121, with unit cell parameters a = 55.853, b = 65.507, c = 91.754 А, and have one molecule per asymmetric unit. X-ray data have been collected to 1.8А, using a synchrotron source.
