- Thermal influence on the development, reproduction and progeny sex ratio of Lipolexis scutellaris Mackauer (Hymenoptera: Braconidae, Aphidiinae)
- 作者: Singh, R.; Singh, K. and Prasad, M
- literature id: 42654
- catalog nub: TPL_SINGHn2000TIOTD26702780
- 文献库: Taxapad收录文献
- type: article
- publication name: Proceedings of the National Academy of Sciences India Section B (Biological Sciences)
- publish date: 2000-01-01
- pages: 267-278
- volume: 70
- issue: 3-4
- 创建时间: 2021-03-02 15:00:32
- create by: zxmlmq (admin)
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comment:
Exposure to different constant temperatures (12, 17, 22, 27 or 32[degree]C) during the entire life-span of female Lipolexis scutellaris variously affected its longevity, life-table parameters, development rate, and mortality of developmental stages of the progeny. The parastoid develops much faster at 32[degree]C than 12[degree]C. Lower threshold temperature for the development (tL) was 2.03[degree]C and predicted time-to-adult 492.4D[degree] days. Higher percent mortality occurred at 32[degree]C and 12[degree]C than at 22[degree]C. The adult survived much longer (17.1 days) at the lower extreme temperature than at the higher one (3.5 days). However, net fecundity (daughters/female) and total fecundity rates (progeny/female were lowest at 12[degree]C. The life-table parameters were temperature dependent; rm was greater than 0.18 at [gtoreq]22[degree]C. The results reveal an optimum range of temperatures at which Lipolexis scutellaris performs well. Most of the life-table parameters vary little between 17 and 27[degree]C, thus, the parasitoid may be adapted for a wide range of temperatures and thus well suited for biological control of the aphid Aphis gossypii, in areas where temperatures vary within this range, as in the plains of north India. none
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