Screening of okra genotypes against white fly [Bemisia tabaci (Gennadius)] and YVM Virus

Abstract

The present investigation was carried out during rabi season (March - June) 2017 at the central research farm of SHUATS, Allahabad. The ten okra genotypes viz. HRB-55, H14-A, JPM-20-16-32, IIVR-10, IC-14-934, IC-45862, JC-034-1124-A, VRO-6, 317-10-1, 326-10-1 were raised in randomized block design with three replications to know their response on incidence of Bemisia tabaci and resistance against YVMV. Among these ten genotypes IIVR-10 showed the lowest mean population of white fly (01.98) and the highest mean population (07.52) was recorded in genotype 317-10-1. It is observed that the population of Bemisia tabaci reached the peak level on 21st standard week (9 week after sowing). The genotype IIVR-10 (03.33 %) and VRO-6 (check) (06.66 %) were highly resistant recorded against YVMV Fallowed by HRB-55 (20%) moderate resistant.