摘要
室内定温饲养结果表明，马铃薯瓢虫Ｈｅｎｏｓｅｐｉｌａｃｈｎａｖｉｇｉｎｔｉｏｃｌｏｍａｃｕｌａｔａ（Ｍｏｔｓｃｈ．）实验种群（ｎ＞８０）的存活曲线在２０，２３，２５℃下呈ｂｅｅｖｅｙⅠ型，在２８，３０℃下接近于ＤｅｅｖｅｙⅡ型，与Ｏｄｕｍ的Ｂ１型相吻合。根据种群动态参数温度依赖模型导出在２６．０℃下内禀增长率有极大值。不同温度下成虫产卵动态均呈偏态分布，６～８ｄ达最高峰。实验条件下，２５℃相对最适合成虫产卵，不仅产卵高峰期后延，且产卵比例、产卵历期、平均产卵量均为最大值。
The rearing results under constant temperatures showed that the survivalship curve of the 28-spotted ladybird Henosepilachna vigintioctomaculata（Motsch．）assumed the type of Deevey's urve at 20，23，25℃，and tallied with Odtim's B1 ctirve at 28 and 30℃. Based oii the regression model between the intrinsic increase rate（rm）aiid temperature（T℃）set up in this paper rm had the highest value at 26．0℃. The ovipositive dynnamics of adults under test temperature were all shown as deviation-distribution，had the highest value around 6-8d．The temperature of 25℃ was the most suitable temperature for the oviposition of the insect，at which not only the peak period of oviposition can be prolonged，also the reproductive individual ratio of adult，the duration of reprodtiction and the eggs laid per female had the highest value at this temperature.
出处
《西北农业大学学报》
CSCD
1996年第2期61-65,共5页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
关键词
马铃薯
瓢虫
种群动态
繁殖特征
温度
害虫
Henosepilachna vigintioctomaculata，population dynamics，ovipositive characteristics
