Abstract
AbstractThe differences of bionomics and ecologies of the two populations of Callosobruchus chinensis on mung bean (Vigna radiatus) at six constant temperatures (20, 25, 28, 30, 32, 35°C) and 75% r. h. were researched. ANOVA showed that temperature affected the developmental period and fertility significantly (P < 0.05). T‐test indicated there was significant difference of the combined immature stages between the two geographical populations at 25 and 32°C (P < 0.05). The average oviposition between the two geographical populations differed significantly at the same temperature (P < 0.05). At 30°C and 75% r. h., effects of 5 commercially grown legume seeds on development and reproduction of the two geographical populations of Callosobruchus chinensis (L.) were researched. The results showed that broad bean and soybean were more suitable for increase for Xichang population in terms of rm values. The adult weight and diameter of emergency hole of the two populations were also compared. According to the differences in the characteristics of development, reproduction, and damage to host seeds between the two geographical populations, conclusion can be drawn that both are different geographical populations.
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