Vol. 11, Special Issue 10 (2022)

Author(s):
Omendra Sharma and DK Singh

Abstract:
Experimentations were conceded out at the Oilseed Farm of C.S.A Agricultural University, Kalyanpur, Kanpur, UP. During Rabi season of 2015-16 and 2016-17 to evaluate rapeseed-mustard genotypes against Lipaphis erysimi. A total of sixty-three genotypes accessions were evaluated based on population buildup of mustard aphid and infestation index. AKM2 / AKMS-14-34 was resistant and hadleast number of aphid population (21.3-30.7 aphids/ top 10 cm of central shoot/plant). PT-2010-5 was susceptible and had 87.0-195.3 aphids/ top 10 cm of central shoot/plant. Based on Aphid infestation index, four, three, forty and sixteen mustard genotypes were categorized under resistant, moderately resistant, susceptible and highly susceptible categories, respectively. Genotype namely, AKM2 / AKMS-14-34, ACN 83, RTM-314 and NML 42 were identified resistant varieties against L. erysimi.