تاثیر ارقام مختلف نخود بر ویژگی‌های زیستی سوسک چهارنقطه‌ای حبوبات، Callosobruchus maculatus (F.) (Col.: Chrysomelidae: Bruchinae)

Chickpea, Cicer arietinum L., is one of the most important agricultural products, which it ranked third after bean and pea in world legumes production. Chickpea is one of the most important agricultural products in terms of production after beans and peas, ranked third in the world. In our country, chickpea is more important than other legumes in terms of production. The cowpea weevil, Callosobruchus maculatus (F.), is one of the most important storage pests in the world that causes significant damage to chickpea grains. In this study, the effects of different chickpea cultivars including Azad, Azkan, Adel, Hashem, Mansour, and Goksu were investigated on the biological parameters of the cowpea weevil under laboratory conditions (30±2 oC, 60±5% RH and 12L:12D h photoperiod). The study of biological parameters was calculated based on the age-stage, two-sex life table and the 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. Biological traits of C. maculatus were significantly affected via different chickpea cultivars. The longest total egg-larval period of the pest were related to Goksu, Azkan and Hashem cultivars, respectively, and the shortest one was reported in Adel cultivar. The longest pupal period of C. maculatus fed on Azad and Azkan cultivars and the shortest one on Hashem cultivar were observed. The cowpea weevil reared on Azkan, Azad and Goksu cultivars had significantly the longest total development period, whereas the lowest one was recorded in Adel cultivar. The lowest immature survival percentage of C. maculatus was obtained on Azad and Azkan cultivars, and the highest one on Adel cultivar, respectively. The highest adult longevity of the cowpea weevil (female, male and total) was in Goksu, Azkan and Mansour cultivars, respectively, and the lowest one related to Hashem cultivar. The highest total longevity of this pest was related to Goksu, Azad and Adel cultivars, respectively, and the lowest one was reported in Hashem cultivar. The highest the female and male total longevity fed on Azkan cultivar and the lowest period was observed in Adel and Hashem cultivars, respectively. This pest had significantly the longest oviposition periods on Azkan, Goksu and Mansour cultivars, whereas the shortest one was on Hashem cultivar. Therefore, according to the results of present study, among the studied chickpea cultivars, Azad and Hashem cultivars were identified as the less suitable cultivar for feeding the cowpea weevil, and it can be used in the integrated management program of this pest.