棉花学报2012，Vol.24Issue(6)：496-502,7.
不同类型棉花品种对扶桑绵粉蚧个体发育特征及其适应性的影响
Ontogenesis and Adaptability of Mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) on Different Varieties of Cotton
摘要
Abstract
The ontogenesis of the cotton mealybug Phenacoccus solenopsis feeding on six varieties of transgenic or non-trans-genic Bt cotton was investigated. Correlations between the development and reproduction of Ph. solenopsis and the amounts of soluble sugar, soluble protein and gossypol in cotton were also analyzed. The results showed that the cotton mealybug could complete its life cycle on both transgenic and non-transgenic cotton plants, but there were significant differences among the six cotton varieties in the development time, fecundity, and mortality of Ph. solenopsis. Variety CCRI 41 was the best for cotton mealybug, which had the best fecundity, longevity, net reproductive rate (Ro), intrinsic rate of increase (rm), and finite rate of increase (X.) and the lowest doubling time (DT) on this strain. In contrast, CCRI 59 was the most unsuitable variety for cotton mealybug, which had the lowest fecundity, longevity, Ro, rm, and X and the highest mortality and DT on this cultivar. There was a positive correlation between gossypol content offender leaves and the duration of 2nd instar nymphs and negative correlations between gossypol content of both tender and mature leaves and adult longevity and fecundity, which implied that gossypol slowed the growth and development of Ph. solenopsis and inhibited both reproduction and survival of the mealybug.关键词
扶桑绵粉蚧/棉花/个体发育特征/生命表/生化物质Key words
Phenacoccus solenopsis/ cotton/ ontogenesis/ life table/ biochemical substances分类
农业科技引用本文复制引用
赵新宁,崔旭红,陈玲,黄伟峰,郑丹,商晗武..不同类型棉花品种对扶桑绵粉蚧个体发育特征及其适应性的影响[J].棉花学报,2012,24(6):496-502,7.基金项目
浙江省重大农业科研专项(2006C12020) （2006C12020）
浙江省重点科技创新团队项目(2010R50028) （2010R50028）
