Temperature dependent survivorship and development of Helicoverpa armigera (Hubner) (Lepidoptera-Noctuidae) on chickpea
Salman Ahmad
Abstract:Effect of constant temperatures (14°, 16°, 18°, 20°, 22°, 25°, 27°, 30°, 32°, 35° and 36°C) on demography and development of Helicoverpa armigera was evaluated under laboratory conditions (with 65% RH and 14L:10D h) on chickpea. Potential fecundity (pf) was significantly reduced to 86 females/female/generation at 35ºC compared to 532 at 27ºC. Intrinsic rate of increase (rm) was minimum (0.0191 females/female/day) at 14ºC and maximum (0.0489) at 30ºC. Estimate of linear regression model showed that lower temper… Show more
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