Biochemical plant factors affecting resistance to Chilo partellus (Swinhoe) in Maize.
2002
Rao, C.N. | Panwar, V.P.S.(Indian Agricultural Research Institute, New Delhi(India). Division of Entomology)
Seven maize genotypes comprising resistant, moderately resistant, and highly susceptible to Chilo partellus were taken to observe the role of biochemical plant factors at various stages of crop growth i.e. 10, 20 and 30 DAE. Distinctly low leaf chlorophyll, carotenoid, nitrogen, crude protien and moisture content were noticed in resistant varieties as compared to susceptible ones. The correlations between leaf injury due to C. partellus with these biochemical factors individually were positively correlated, the signsificant differences being in carotenoid content at 10 and 20 DAE only. It means that less carotenoid content in early stages of crop growth contributed towards resistance against the borer in maize.
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