1Division of Plant Biotechnology, ICAR-Indian Institute of Pulses Research, Kanpur - 208 024, Uttar Pradesh, India
Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana - 141 004, Punjab, India
*Corresponding author's E-mail: akankshasingla684@gmail.com
Online published on 18 June, 2022.
Seven chickpea genotypes viz., GL 12021, GL 29095, GL 13001, GL 13042 along with ICCL 86111 (resistant check), L 550 (susceptible check) and PBG 7 (local check) were screened for resistance against Helicoverpa armigera under field conditions during rabi at hot-spot location, i.e., at Ludhiana for 2 consecutive years. Egg count and larval population ranged from 4.58–11.87 eggs/5 plants and 2.58–6.95 larvae/5 plants, respectively. The lowest egg count (4.58) and larval population (2.58) was recorded in GL 12021 as compared to 11.87 eggs and 6.95 larvae per five plants in the susceptible genotype, L 550. The minimum per cent pod damage (10.03%) and maximum yield (1857 kg ha−1) was also recorded in GL 12021, while maximum per cent pod damage (44.79%) and minimum grain yield (998 kg ha−1) in L 550. Further, the experiments were also performed under laboratory conditions during same period to confirm the source of resistance in chickpea using detached leaf and pod assay. Genotypes, GL 12021 and GL 13042 showed minimum leaf and pod consumption and were, identified as resistant against H. armigera.
Chickpea, Egg count, Genotypes, Helicoverpa, Larval population, Resistance
