Field Screening of Sesame Accessions against Leaf Roller and Capsule Borer (Antigastra catalaunalis Dup.)

摘要

One hundred accessions of sesame with susceptible (TC-25) and resistant check (SI-250) were screened under natural conditions during two consecutive seasons of 2013 and 2014 to identify sources of resistance against leaf roller and capsule borer {Antigastra catalaunalis Dup.) at AICRP (Sesame) centre of College of Agriculture, JNKW, Tikamgarh (M.P.). The accessions were categorized based on 0 to 9 scoring methodology. In pooled analysis, flower damage ranged from 1.0 to 65.0 against 42.6 and 8.5% onsusceptible and resistant checks, respectively, while capsules damage ranged from 0.25 to 15.0% against 9.0 and 2.0% on susceptible and resistant checks, respectively. In pooled analysis none of the accessions were found free from infestation of A. catalaunalis. Based on the cumulative scoring, thirteen accessions namely IS-355, IS-413-A, RJS-56-A, IS-58-2-A, NIC-16401-A, OLT-44, IS-425-C, SI-2670, SP-1162-B, IS-178-C, IC-14160-1, ES-110-C and resistant check SI-250 (RC) were rated as resistant. These could be a possible source of resistant and used in breeding programmes to develop resistant varieties.