ارزیابی مقاومت ارقام رایج نخود نسبت به سوسک چهار نقطه‌ای حبوبات، (F.) (Col.: Chrysomelidae: Bruchinae) Callosobruchus maculatus

Legume seeds are the most economically important products for humans worldwide, which is rich in protein, carbohydrates, magnesium, zinc, and iron. One of the most important harmful agents of legumes is the cowpea weevil, Callosobruchus maculatus (F.), which damages different cultivars beans, chickpeas, and mung beans. This pest reduces the quantity and quality of legume seeds. In this research, the impacts of different chickpea cultivars including Azad, Azkan, Adel, Hashem, Goksu and Mansour were studied on reproduction parameters and population growth of the cowpea weevil at 30±2 ° C, 60±5% relative humidity, and 12 L:12 D h photoperiod. The parameters were calculated based on the age-stage, two-sex life table, and using bootstrap method (with 100,000 replications). Mean comparison was performed using paired bootstrap test according to confidence interval (CI) of differences at the level of five percent. The results showed that the longest total pre oviposition period (TPOP) of the cowpea weevil was significantly recorded in Azkan cultivar and the shortest one on Hashem, Mansour and Adel cultivars, respectively. The cowpea weevil reared on Azad and Hashem cultivars had the lowest total fecundity and the highest amount on Azkan cultivar. The lowest and highest the intrinsic rate of increase (r) of this pest was significantly observed on Azad and Adel cultivars (0.124 and 0.147 day-1, respectively). The lowest and highest finite rate of increase (λ) of the cowpea weevil fed on Azad and Adel cultivars (1.133 and 1.159 day, respectively) were also obtained. There was a significant difference among the mean generation time (T) of the pest on different chickpea cultivars. The cowpea weevil fed on Azkan cultivar (29.54 days) had the highest T value and the lowest amount one on Hashem and Adel cultivars (26.38 and 26.41 days, respectively). On the other hand, female insects reared on Azad and Adel cultivars had the lowest and highest weight, respectively. Therefore, according to the obtained results, Azad cultivar is relatively resistant to C. maculatus feeding and it can be used in integrated pest management program of control this pest.