摘要
在室内人工控制条件下,研究了夏季高温对翌年小麦吸浆虫发生的影响,结果表明,夏季高温影响小麦吸浆虫雌虫抱卵量、幼虫存活率、成虫羽化数量和雌雄比例等。高温干旱对小麦吸浆虫发生更为不利,在于旱条件下,气温39℃及39℃以上高温持续7d对小麦吸浆虫有毁灭性致死作用,翌年小麦吸浆虫的存活率均为0;而在保湿条件下,1999年只有42℃处理的存活率为0,2000年42℃处理的存活率虽亦较低,但仍有32.0％。
This study is mainly about the effect of the high temperature in summer on occurrence of wheat blossom midge next year under the controlled condition in laboratory. The results indicated that the high temperature in summer affects female adult ovmu of wheat blossom midge, the survival rate of larvae, number of adult and ratio of female to male midge ect. High temperature and drought had great effect on wheat blossom midge. Under the drought condition, 7 days' temperature of 39℃ or above could destroy wheat blossom midge completely, the survival rate was nil in the following year. Under 42℃ and moisture-keeping condition, the survival rate was nil in 1999 and 32% in 2000.
出处
《西北农业学报》
CAS
CSCD
2002年第4期13-15,共3页
Acta Agriculturae Boreali-occidentalis Sinica
基金
校青年科研专项资助
