Screening of chickpea tolerant genotypes against pod borer Helicoverpa armigera (Hübner) at hotspot Pantnagar

Abstract

Screening of chickpea genotypes were carried out against Helicoverpa armigera (Hubner) during Rabi season 2016-17 and 2017-18. During 2016-17 based on preliminary screening results of percent pod damage and PRSR eleven promising genotypes viz., ICC 07104, ICCV 07108, ICCV 09103, ICCV 14872, ICCV 97105, HC 1, NBeG 1004, GLW 48, GL 25016, JG 11 and ICCV 92944 were categorised in grade three (resistant). During 2017-18, those eleven promising genotypes were further screened against pod borer. Overall mean number of egg population per plant was recorded highest in NBeG 1004 (0.56 eggs/ plant) and lowest in ICCV 07108 (1.22 eggs/ plant). However, the highest larval population was found in JG 11 (3.60 larva/plant) and lowest mean larval population in ICCV 92944 (1.68 larvae/plant). Percent pod damage varied significantly from the highest in ICCV 92944 (19.94 percent) to the lowest in JG 11 (35.67 percent). The minimum grain yield of chickpea was recorded in ICCV 97105 (822.30 kg/ha) and maximum grain yield was obtained from ICCV 92944 (1036.00 kg/ha). On the basis of the percent pod damage of genotypes ICCV 09103, HC 1, NBeG 1004, GLW 48, GL 25016 and ICCV 92944 were found to be least preferred and can be used as source of resistance against H. armigera.