Studies on the Transmission and Virus-Vector Relationship of Rice-Tungro Virus (RTV) in Different Rice Genotype
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 4
Abstract
Rice is one of the most important cereal crops grown in India and West Bengal is the highest producing state covering more than 90% of the crop during Kharif season. There are various viral diseases which causes constraint in production of rice crop and are mostly transmitted by insects. Out of the 13 insect-borne rice viruses Rice tungro virus (RTV) is considered as one of the major diseases in rice. Rice tungro virus (RTV) in West Bengal are transmitted by different species of green leafhopper like Nephotettixvirescens, NephotettixnigropictusandZigzag leafhopper R. dorsalis. An experiment was conducted to study the role of these vectors in transmission of the RTV. In test tube inoculation method, highest percent of transmission on GLH was found on TN 1 (63.63) however in case of ZLH highest percent of transmission was found on IET4786 (47.36). However in case of cage inoculation method, both GLH (36.00) and ZLH (32.00) recorded the highest percentage transmission on TN1. Regarding virus vector relationship, the result obtained showed both the vectors transmitted the virus efficiently, but higher percentage of transmission was recorded with green leafhopper (GLH) and compared with ZLH. The retention period GLH was found upto 8 hours while the infectivity of ZLH was lost after 1 hour.
Authors and Affiliations
Ali Azgar, Rakesh Yonzone
Keywords
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