Discerning Pigeonpea, Cajanus cajan (L.) Millsp. Genotypes for Their Resistance against Pod Borer, Helicoverpa armigera (Hubner)
Shravan Kumar Verma
Department of Entomology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur-208002, Uttar Pradesh, India.
Anup Chandra *
Division of Crop Protection, ICAR– Indian Institute of Pulses Research (IIPR), Kanpur-208024, Uttar Pradesh, India.
Sujayanand G. K.
Division of Crop Protection, ICAR– Indian Institute of Pulses Research (IIPR), Kanpur-208024, Uttar Pradesh, India.
A.K. Parihar
Division of Crop Improvement, ICAR– Indian Institute of Pulses Research (IIPR), Kanpur-208024, Uttar Pradesh, India.
Kalpana Tewari
Division of Basic Science, ICAR– Indian Institute of Pulses Research (IIPR), Kanpur-208024, Uttar Pradesh, India.
Kali Krishna Hazra
Division of Crop Production, ICAR– Indian Institute of Pulses Research (IIPR), Kanpur-208024, Uttar Pradesh, India.
Pramod Kumar Mishra
Department of Entomology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur-208002, Uttar Pradesh, India.
C. L. Maurya
Department of Seed Science & Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur-208002, Uttar Pradesh, India.
*Author to whom correspondence should be addressed.
Abstract
During the Kharifof 2023–2024 and 2024–2025, an experiment was carried out to screen 100 genotypes of pigeonpeas, Cajanus cajan (L.), for resistance to the pod borer, Helicoverpa armigera. Pod damage varied with genotype, ranging from 1.25% to 48.00%.ICP 8146-1 had the least amount of pod damage (1.25%), while ICP 1535-1 had the most (48.00%). ICP 7076-1, ICP 13906-1, ICP 10559-1, ICP 7426-7, ICP 9049-1, ICP 9891-1, ICP 11259-1, ICPL 20201-1, ICP 7314-1, ICP 4715-1, ICP 939-1, ICP 4266-1, ICP 16674-1, ICP 655-11 were classified as resistant (R) with 3.75% pod damage (PSR scale of "2). The minimum grain damage was recorded in the genotype ICP 9045-1(1.80%) whereas, highest damage (%) was recorded in the genotype ICP 4029-1, (20.00), followed by ICP 13244-1 (18.87) and ICP 5863-1 (18.71). Genotypes ICP 12515-1(5538.42 kg/ha), ICP 6815-1(4139.62 kg/ha), ICP 9049-1(4005.54 kg/ha), ICP 15185-1(3821.49 kg/ha) and ICP16264-1(3268.92 kg/ha) showed superior performance in yield, along with several other promising entries in comparison to standard check: NA-1, Asha, and IPA-203.
Keywords: Grain damage, pest susceptibility rating, pod damage, susceptibility, variation, yield