华南农业大学学报 |
||
|
汤才 黄德超 黄德超 黄智 摘 要:研究了9个梯度变温对湿地松粉蚧Oracell
aacuta(Lobdell)越冬代成虫和第一代卵的影响,结果表明:湿地松粉蚧雌成虫存活率随温度升高逐渐下降,高温对成虫产卵有一定抑制作用,持续较高温度处理成虫,其产卵量显著降低;湿地松粉蚧成虫生长发育的最适温度为27~21℃,卵的孵化和发育的最适变温组合是29~23℃;在29~23℃以上的温度波动对卵的发育速率有增速作用,而在29~23℃以下的温度波动对卵的发育速率则有减速作用. Effect of Alternate Temperatures on the Experimental Population of Oracella acuta TANG Cai(Laboratory of Insect Ecology,
South China Agric. Univ.,Guangzhou 510642, China) Abstract:The development, survival and reproduction of the overwintering females
of Oracella acuta and their eggs were observed under various alternate
temperatures in this paper. The results indicated (1) the higher the alternate
temperature was, the lower the survival rate was. And the number of eggs laid by
per female had the same trend but in a less extents, (2) The female cannot
survived in a long periods of high temperature(under 35~29℃), (3)
The alternate
temperature(27~21℃) was
considered as the best temperature based on the development rate and the
survival rate of the adults; (4) The alternate temperature(29~23℃) was considered as the best
temperature based on the development rate and the survival rate of the eggs; (5)
The alternation in a low temperature range(below the alternate temperature
29~23℃) could slow down the
development rate of eggs. However the alternation in a high temperature (above
the alternate temperature 29~23℃) range could accelerate the development rate of
eggs. |
基金项目:国家自然科学基金资助项目(3900117);广东省自然科学基金资助项目(960432) 作者简介:汤才(1962-),男,副教授,博士. 作者单位:汤才(华南农业大学昆虫生态研究室,广东 广州 510642) 黄德超(华南农业大学昆虫生态研究室,广东 广州 510642) 黄德超(华南农业大学昆虫生态研究室,广东 广州 510642) 黄智(华南农业大学昆虫生态研究室,广东 广州 510642) 参考文献: [1]潘务耀,唐子颖,徐家雄. 新侵入我国的湿地松粉蚧研究[J].林业科学研究,
1995,(8):62-72. 收稿日期:1999年11月26日 出版日期:2001年1月1日 |