| Demographic parameters of cotton aphid, Aphis gossypii Glover （Homoptera： Aphididae） on five cotton cultivars |
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| 作者姓名： | JABRAEIL RAZMJOU SAEID MOHARRAMIPOUR YAGHOUB FATHIPOUR SEYED ZIAEDDIN MIRHOSEINI |
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| 作者单位： | [1]Department of Entomology, College of Agriculture, Tarbiat Modarres University, Tehran [2]Department of SilkwormResearch, Faculty of Natural Resources, University of Guilan, Somehe Sara, Iran |
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| 摘 要： | Life table parameters of the cotton aphid, Aphis gossypii Glover, were estimated on five cotton cultivars （‘ Sealand＇ ,‘Siokra＇ ,＇ Vararnin＇ ,‘ Bakhtegan＇ and ‘ Sahel＇ ）. Demographic parameters of the cotton aphid were assessed at 27.5 ± 1 ℃, 65% ＋ 10% RH and a photoperiod of 14：10 （L： D）h. The shortest developmental time for the nymphal stages was 5.5 days on ‘Siokra＇ and the longest was 6.1 days on‘ Sealand＇. The highest offspring per female was 29.6 on ‘Sahel＇ and the lowest was 15.3 on ‘Sealand＇. The rm values varied from 0.272 on ‘Sealand＇ to 0.382 （day^-1） on ‘Varamin＇. Jackknife estimates of the A. gossypii parameters on these cultivars indicated the greatest developmental rate and fecundity on ‘ Varamin＇ and the poorest on ‘ Sealand＇ cultivar.
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| 关 键 词： | 棉蚜虫 棉手套 同翅类昆虫 栽培技术 |
| 收稿时间： | 2006-01-19 |
| 修稿时间： | 2006-01-19 |
Demographic parameters of cotton aphid, Aphis gossypii Glover (Homoptera: Aphididae) on five cotton cultivars |
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| Authors: | JABRAEIL RAZMJOU SAEID MOHARRAMIPOUR YAGHOUB FATHIPOUR SEYED ZIAEDDIN MIRHOSEINI |
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| Institution: | Department of Entomology, College of Agriculture, Tarbiat Modarres University, Tehran;, and Department of Silkworm Research, Faculty of Natural Resources, University of Guilan, Somehe Sara, Iran |
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| Abstract: | Abstract Life table parameters of the cotton aphid, Aphis gossypii Glover, were estimated on five cotton cultivars ('Sealand', 'Siokra', 'Varamin', 'Bakhtegan' and 'Sahel'). Demographic parameters of the cotton aphid were assessed at 27.5 ± 1°C, 65%± 10% RH and a photoperiod of 14: 10 (L: D)h. The shortest developmental time for the nymphal stages was 5.5 days on 'Siokra' and the longest was 6.1 days on 'Sealand'. The highest offspring per female was 29.6 on 'Sahel' and the lowest was 15.3 on 'Sealand'. The rm values varied from 0.272 on 'Sealand' to 0.382 (day-1) on 'Varamin'. Jackknife estimates of the A. gossypii parameters on these cultivars indicated the greatest developmental rate and fecundity on 'Varamin' and the poorest on 'Sealand' cultivar. |
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| Keywords: | Aphis gossypii cotton aphid cultivar demography plant resistance |
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