Apple replant disease(ARD)is mainly caused by biological factors,and it severely restricts the development of the apple industry.The use of biological control measures to alleviate ARD is critically important for the ...Apple replant disease(ARD)is mainly caused by biological factors,and it severely restricts the development of the apple industry.The use of biological control measures to alleviate ARD is critically important for the sustainable development of the apple industry.The effects of raw amino acid powder and Trichoderma harzianum fertilizer on plant biomass,leaf and root indexes,soil physical and chemical properties,soil enzyme activities,and the soil fungal community were studied under pot and field conditions using Malus hupehensis Rehd.seedlings and grafted trees(Fuji New 2001/M9T337)as experimental materials.We found that the application of the materials significantly promoted plant growth,increased the leaf photosynthesis and chlorophyll content,root respiration rate,root antioxidant enzyme activities,and soil enzyme activities,significantly reduced the number of Fusarium sp.in soil,and significantly increased the abundance of beneficial fungi.In conclusion,the mixed application of raw amino acid powder and T.harzianum fertilizer is an effective method for the prevention and management of ARD.展开更多
Apple replant disease(ARD)is a common soil-borne disease,and has a negative impact on the growth and yield of apple trees(Jiang et al.,2023).Due to the prevalence of pathogenic Fusarium spp.,the resulting microbial co...Apple replant disease(ARD)is a common soil-borne disease,and has a negative impact on the growth and yield of apple trees(Jiang et al.,2023).Due to the prevalence of pathogenic Fusarium spp.,the resulting microbial community shift in the rhizosphere soil has been the primary cause of ARD in major apple-producing regions along the Bohai Gulf(Wang et al.,2018).Chemical fumigation is gradually eliminated because of its environmental pollution.Therefore,it is crucial to find sustainable,eco-friendly,and effective biological measures to alleviate ARD(Wang et al.,2022).Since the discovery of antagonistic and plant growthpromoting bacteria(such as Bacillus spp.),their solid microbial fertilizers have been demonstrated to have effective biocontrol properties(Shahid et al.,2021).In view of the variety of natural antifungal compounds of Bacillus spp.(Jasim et al.,2016;Ismaila et al.,2023),there were few reports on applying sterile supernatant of Bacillus spp.to prevent ARD.展开更多
基金supported by the China Agriculture Research System of MOF and MARA(CARS-27)the National Natural Science Foundation of China(32072510)+1 种基金the Taishan Scholar Funded Project,China(ts20190923)the Key R&D Program of Shandong Province,China(2022TZXD0037)。
文摘Apple replant disease(ARD)is mainly caused by biological factors,and it severely restricts the development of the apple industry.The use of biological control measures to alleviate ARD is critically important for the sustainable development of the apple industry.The effects of raw amino acid powder and Trichoderma harzianum fertilizer on plant biomass,leaf and root indexes,soil physical and chemical properties,soil enzyme activities,and the soil fungal community were studied under pot and field conditions using Malus hupehensis Rehd.seedlings and grafted trees(Fuji New 2001/M9T337)as experimental materials.We found that the application of the materials significantly promoted plant growth,increased the leaf photosynthesis and chlorophyll content,root respiration rate,root antioxidant enzyme activities,and soil enzyme activities,significantly reduced the number of Fusarium sp.in soil,and significantly increased the abundance of beneficial fungi.In conclusion,the mixed application of raw amino acid powder and T.harzianum fertilizer is an effective method for the prevention and management of ARD.
基金funded by Key R&D program of Shandong Province(Grant No.2022TZXD0037)China Agriculture Research System of MOF and MARA(Grant No.CARS-27)+3 种基金the National Natural Science Foundation of China(Grant No.32072510)Taishan Scholar Funded Project(Grant Nos.ts20190923 and ts20240823)Key R&D program of Shandong Province(Grant No.2022TZXD0037)the Fruit Innovation Team in Shandong Province of China(Grant No.SDAIT-06-07)。
文摘Apple replant disease(ARD)is a common soil-borne disease,and has a negative impact on the growth and yield of apple trees(Jiang et al.,2023).Due to the prevalence of pathogenic Fusarium spp.,the resulting microbial community shift in the rhizosphere soil has been the primary cause of ARD in major apple-producing regions along the Bohai Gulf(Wang et al.,2018).Chemical fumigation is gradually eliminated because of its environmental pollution.Therefore,it is crucial to find sustainable,eco-friendly,and effective biological measures to alleviate ARD(Wang et al.,2022).Since the discovery of antagonistic and plant growthpromoting bacteria(such as Bacillus spp.),their solid microbial fertilizers have been demonstrated to have effective biocontrol properties(Shahid et al.,2021).In view of the variety of natural antifungal compounds of Bacillus spp.(Jasim et al.,2016;Ismaila et al.,2023),there were few reports on applying sterile supernatant of Bacillus spp.to prevent ARD.
