Biochemical studies of thrips infected leaves of groudnut (Arachis hypogaea L.): An edible oil seed crop
M Kalpana, YG Prasad, V Madhavi
Groudnut (Arachis hypogaea L.) is one of the most consumed legume globally.The Groundnut crop is attacked by several insect pests, mostly thrips (sap suckers). Four genera commonly infest Groundnut namely, Scirtothrips dorsalis Distant, Frankliniella schultzei Trybom, Thrips palmi Karny and Caliothrips indicus Bagnall. In the present study, an attempt was made to analyse certain biochemical changes in thrips infected Groundnut leaves collected from Cental Research Institute for Dryland Agriculture (CRIDA), Hyderabad. Thrips belongs to the family of Thysanoptera. In Groundnut crop; thrips feeding starts from seedling emergence to a few weeks following emergence. The severe infestation causes the yield loss and delayed maturity in early stage of crop. Thrips feeding also causes the transmission of viruses such as Tomato spotted wilt virus(TSWV), Groundnut ring spot virus (GRSV) and Groundnut bud necrosis virus (GBNV). In the present study leaf samples of healthy and infected Groundnut plants were collected and processed for biochemical analysis of total chlorophylls, proteins, sugars and starch contents. The results showed significant increase in total leaf proteins and decrease in total chlorophyll, starch and sugar contents in infected leaves compared to healthy leaves. The outcome of the above findings suggested that infestation of thrips on groundnut crops drastically reduce the crop yield through alteration of essential biochemical contents required for plant growth and development.
M Kalpana, YG Prasad, V Madhavi. Biochemical studies of thrips infected leaves of groudnut (Arachis hypogaea L.): An edible oil seed crop. International Journal of Entomology Research, Volume 6, Issue 2, 2021, Pages 209-213