新疆农业科学2012，Vol.49Issue(1)：108-112,5.DOI:65-1097/S.20120131.2224.017
库尔勒市香梨园山楂叶螨自然种群连续世代生长发育和繁殖研究
Study on Development and Fecundity in Successive Generations of Natural Population of Tetranychus Viennensis Zacher in Korla Pear Orchard
摘要
Abstract
[ Objective ] To study the development and fecundity in successive generations of natural population of Tetranychus viennensis and analyze the occurrence regularity of this pest. [ Method ] After systematically investigation and indoor observation, the development and fecundity in eleven generations of T. Viennensis were investigated by using the method of average developmental periods. [ Result ] The developmental periods of different stages, egg laying amount of single female, survival rate and parameters of population were varied in different generations. The generation periods of eleven generations of T. Viennensis were 19.9,16.7,13.9,13.5,11.5,12.2,11.7,10.4,12.3,13.0 and 34.8 day, respectively. The second generation possessed the highest intrinsic rate of increase and net reproduction rate, 0. 075 9 and 9. 29, respectively, while the 7th generation showed the lowest ones, - 0. 200 5 and 0. 02, respectively. The highest survival rate (35% ) showed in the 3th and 11th generation, followed by the second generation, 31% , and the lowest one showed in the 7th generation, only 1% . [ Conclusion]In the eleven generations of T. Viennensis investigated, the 2nd generation possessed the highest fecundity, and followed by the 3rd generation, whilethe 7th generation showed the lowest one.关键词
山楂叶螨/连续世代/种群参数/香梨Key words
Tetranychus viennensis/successive generation/ population parameter/ Korla Fragrant Pear分类
农业科技引用本文复制引用
蒋世铮,任德新,张文忠,赛买提江..库尔勒市香梨园山楂叶螨自然种群连续世代生长发育和繁殖研究[J].新疆农业科学,2012,49(1):108-112,5.基金项目
巴音郭楞州科技局重点攻关项目(200801) （200801）
巴音郭楞州政府资助项目(200502) （200502）
