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RISS 인기검색어
- 검색키워드
- 저자 : Prashant Prakash Jambhulkar (검색결과 2 건)
- 무료
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Altering Conidial Dispersal of Alternaria solani by Modifying Microclimate in Tomato Crop Canopy
Jambhulkar, Prashant Prakash,Jambhulkar, Nitiprasad,Meghwal, Madanlal,Ameta, Gauri Shankar The Korean Society of Plant Pathology 2016 Plant Pathology Journal Vol.32 No.6
Early blight of tomato caused by Alternaria solani, is responsible for severe yield losses in tomato. The conidia survive on soil surface and old dry lower leaves of the plant and spread when suitable climatic conditions are available. Macroclimatic study reveals that highest inoculum concentration of Alternaria spores appeared in May 2012 to 2013 and lowest concentration during January 2012 to 2013. High night temperature positively correlated and significantly (P < 0.01) involved in conidial spore dispersal and low relative humidity (RH) displayed significant (P < 0.05) but negative correlation with conidial dispersal. The objective of the study was to modify microclimatic conditions of tomato crop canopy which may hamper conidial dispersal and reduce disease severity. We evaluated effect of marigold intercropping and plastic mulching singly and in consortia on A. solani conidial density, tomato leaf damage and microclimatic parameters as compar to tomato alone (T). Tomato-marigold intercropping-plastic mulching treatment (T + M + P) showed 35-39% reduction in disease intensity as compared to tomato alone. When intercropped with tomato, marigold served as barrier to conidial movement and plastic mulching prevented evapotranspiration and reduced the canopy RH that resulted in less germination of A. solani spores. Marigold intercropping and plastic mulching served successfully as physical barrier against conidial dissemination to diminish significantly the tomato foliar damage produced by A. solani.
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Altering Conidial Dispersal of Alternaria solani by Modifying Microclimate in Tomato Crop Canopy
Prashant Prakash Jambhulkar,Nitiprasad Jambhulkar,Madanlal Meghwal,Gauri Shankar Ameta 한국식물병리학회 2016 Plant Pathology Journal Vol.32 No.6
Early blight of tomato caused by Alternaria solani, isresponsible for severe yield losses in tomato. The conidiasurvive on soil surface and old dry lower leavesof the plant and spread when suitable climatic conditionsare available. Macroclimatic study reveals thathighest inoculum concentration of Alternaria sporesappeared in May 2012 to 2013 and lowest concentrationduring January 2012 to 2013. High night temperaturepositively correlated and significantly (P <0.01) involved in conidial spore dispersal and low relativehumidity (RH) displayed significant (P < 0.05)but negative correlation with conidial dispersal. Theobjective of the study was to modify microclimaticconditions of tomato crop canopy which may hamperconidial dispersal and reduce disease severity. Weevaluated effect of marigold intercropping and plasticmulching singly and in consortia on A. solani conidialdensity, tomato leaf damage and microclimatic parametersas compar to tomato alone (T). Tomato-marigoldintercropping–plastic mulching treatment (T + M +P) showed 35–39% reduction in disease intensity ascompared to tomato alone. When intercropped withtomato, marigold served as barrier to conidial movementand plastic mulching prevented evapotranspirationand reduced the canopy RH that resulted in lessgermination of A. solani spores. Marigold intercroppingand plastic mulching served successfully as physicalbarrier against conidial dissemination to diminishsignificantly the tomato foliar damage produced by A. solani.
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