Abstract
Background: Chickpea is an important pulse crop of Pakistan. The pod borer, Helicoverpa armigera (Hubner), is the major pest in most of the chickpea growing areas of the country. A field trial was carried out at Entomological Research Area, Ayub Agriculture Research Institute (AARI), Faisalabad, during growing season of 2012-13 to evaluate the resistance of chickpea genotypes against gram pod borer (Helicoverpa armigera).
Methods: Experiments were conducted in randomized complete block design (RCBD) with four replications having plot size 3 ft × 20 ft. Morphological characters of chickpea like pod trichome, pod wall thickness, pod length, pod breadth, pod area and number of pods per plant were measured. The pod borer larval population/pod infestation was recorded from fifteen randomly selected plants per plot after ten days interval.
Results: It was found that the genotypes which had higher trichomes length and density and pod wall thickness were more resistant against Helicoverpa infestation. Significant genetic variation for resistance against Helicoverpa armigera attack was found in chickpea and variety K-70005 showed resistant behavior followed by K-08004 and K-60062.
Conclusions: It was concluded from prescribed study that the most susceptible genotypes were K-70005, K-08004 and K-70008 for the attack of Helicoverpa armigera to reduce grain yield.
Muhammad Zeeshan Shabbir, Muhammad Arshad, Babar Hussain, Imran Nadeem, Shahbaz Ali, Asim Abbasi, Qurban Ali. (2014) Genotypic response of chickpea (Cicer arietinum L.) for resistance against gram pod borer (Helicoverpa armigera), Advancements in Life Sciences, Volume 2, Issue 1.
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