Sweet potato virus disease is a serious biological threat to sweet potato,which seriously affects the development of sweet potato industry in China.This paper gives a brief introduction to the main defensive measures ...Sweet potato virus disease is a serious biological threat to sweet potato,which seriously affects the development of sweet potato industry in China.This paper gives a brief introduction to the main defensive measures of sweet potato virus disease,such as cutting of virus infection source,killing of viral transmission media,cultivation and application of virus-free sweet potato,use of antiviral agents,breeding of varieties with virus resistance,and mild strain cross protection,so as to provide some reference for this field.展开更多
This study was to investigate the influence of SPVD on the growth devel- opment and yield formation of sweet potato, The virus seeding, landrace, virus-free seedlings of high starch sweet potato XichengO07 were inocul...This study was to investigate the influence of SPVD on the growth devel- opment and yield formation of sweet potato, The virus seeding, landrace, virus-free seedlings of high starch sweet potato XichengO07 were inoculated with SPVD for revealing the interaction mechanism, The results showed that SPVD could result in clustering and dwarfing of sweet potato plant type, smaller leaves and lower effec- tive of leaf area, reduced chlorophyll content, and smaller source, lowered assimila- tive ability and photosynthetic capacity. The flow became smaller, further finally led to the reduced biological yield, and the desorption of SPVD could increase leaf ＂source＂ and the chlorophyll content, improve photosynthetic and flow ability, thus raising the output of production. SPVD could reduce the activities of SOD, POD and CAT in sweet potato plant, increase the content of MDA, decrease antioxidant activity and production, damage the cell membrane. However, virus-free treatment could increase the activities of SOD, POD and CAT in plants, which was helpful to reduce the harm of MDA. After the desorption of SPVD, the production of above- ground was increased by 3.4% and the production of fresh sweet potato was up by 2.9%, while SPVD dissemination could result in the reduction of the aboveground and fresh tubers by 69.9% and 49.1%, respectively.展开更多
基金Supported by Hunan Agricultural Science and Technology Innovation Fund(2017XC13)Changsha Sweet Potato Engineering and Technology Research Center(kq1701024)+1 种基金Hunan Sweet Potato Engineering and Technology Research Center(2018TP2032)China Agriculture Research System of Sweet Potato(CARS-11-C-16)
文摘Sweet potato virus disease is a serious biological threat to sweet potato,which seriously affects the development of sweet potato industry in China.This paper gives a brief introduction to the main defensive measures of sweet potato virus disease,such as cutting of virus infection source,killing of viral transmission media,cultivation and application of virus-free sweet potato,use of antiviral agents,breeding of varieties with virus resistance,and mild strain cross protection,so as to provide some reference for this field.
基金Supported by Construction Program of Culitvation Post for Mid-lower Reaches of Yangtze River of Modern Agricultural Industry Technology System(nycytx-16-B-13)Program from Nanchong Experimental Station of Modern Agricultural Industry Technology System(nycytx-16-c-16)Program of Sichuan-Chongqing Potato and Soybean Observation Station of Ministry of Agriculture~~
文摘This study was to investigate the influence of SPVD on the growth devel- opment and yield formation of sweet potato, The virus seeding, landrace, virus-free seedlings of high starch sweet potato XichengO07 were inoculated with SPVD for revealing the interaction mechanism, The results showed that SPVD could result in clustering and dwarfing of sweet potato plant type, smaller leaves and lower effec- tive of leaf area, reduced chlorophyll content, and smaller source, lowered assimila- tive ability and photosynthetic capacity. The flow became smaller, further finally led to the reduced biological yield, and the desorption of SPVD could increase leaf ＂source＂ and the chlorophyll content, improve photosynthetic and flow ability, thus raising the output of production. SPVD could reduce the activities of SOD, POD and CAT in sweet potato plant, increase the content of MDA, decrease antioxidant activity and production, damage the cell membrane. However, virus-free treatment could increase the activities of SOD, POD and CAT in plants, which was helpful to reduce the harm of MDA. After the desorption of SPVD, the production of above- ground was increased by 3.4% and the production of fresh sweet potato was up by 2.9%, while SPVD dissemination could result in the reduction of the aboveground and fresh tubers by 69.9% and 49.1%, respectively.
