1Department of Agricultural Entomology, PAJANCOA&RI, Karaikal, U.T. of Puducherry
Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India
*Corresponding author's E-mail: rajaduraig89@gmail.com
Online published on 17 July, 2017.
Out of 193 rice entries screened against yellow stem borer, Scirpophaga incertulas, gontra bidhan 3, MTU-2020, XR 99986 (29 P 38), IR 50 and NDR-97 showed a higher level of resistance at vegetative stage. the entry RP-Patho-1, gontra bidhan 3, XR 99986 (29 P 38), NDR-97 and CRK 27 expressed high level of resistance at reproductive stage. Biochemical factors analysed in top five entries viz., RP-Patho-1, gontra bidhan 3, XR 99986 (29 P 38), NDR-97 and CRK 27 revealed the presence of higher amount of total phenols and proline, moderate chlorophyll content and less amount of sugars and soluble protein and were identified as the factors imparting resistance against the yellow stem borer, S. incertulas.
Rice, Yellow stem borer, screening, biochemical, resistance
