†International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru502324, Andhra Pradesh, India
$Department of Entomology, Acharya N G Ranga Agricultural University, Rajendranagar, Hyderabad500030, Andhra Pradesh, India
Pigeonpea genotypes(12) with different levels of resistance to Helicoverpa armigera were evaluated for their ability to withstand pod borer damage or recover from damage based on loss in grain yield under field conditions. Under unprotected conditions, ICPL 332, ICPL 84060, and ICPL 98001 suffered low pod damage compared to the susceptible check, ICPL 87, and there were >40 pods per plant in ICP 7203-1, ICPL 98001, ICPL 98008, ICPL 84060, and ICPL 332 compared to <25 pods in case of ICPL 87. Loss in grain yield was <29% in ICPL 332, ICPL 84060, and ICPL 187-1 as compared to 87.2% in ICPL 87. Genotypes such as ICPL 332, ICPL 187-1, and ICPL 84060, which suffered low pod damage and/or low reduction in grain yield can be used for the management of H. armigera. or as sources of resistance in the pigeonpea improvement program.
Pigeonpea, resistance, pod borer, Helicoverpa armigera, grian yield
