【摘要】 <正> 前言昆虫的交尾活动与辐射不育技术有着直接的关系,国内外许多学者对此都有详尽论述(Proverbs 和 Newton 1962;张和琴等1965;Flint 1968)。昆虫发育是一个连续的过程,内部形态不断发展变化,在不同时期和不同环境中,它的发育也不一样。胚胎发育是昆虫生活电中的重要一环。为深入了解桃小食心虫的辐射效应,本实验就辐射影响其胚胎发育和交尾活动方面进行了初步观察,试图探索不育机理,以便为有效地应用辐射不育技术防治桃小食心虫提供科学依据。更多还原

【Abstract】 The eggs stage of the peach fruit borer (Corposina nipponensis wals.) lasted about 144 hours at 25℃.The development of embryo was impeded serioursly,delayed and some of which were abnormal when pupae were irra- diated with 30 kR in the later period.After formation of blastula,65.2- 79.2% of eggs stagnated their development and died at last,so that no nor- mal embryo whth ocelli could be formed. Adult may copulate many times (up to six times)in life.Females copu- lated many times oviposit more eggs than those copulated once.The hatc- hing rate of oviposited females copulated many times was related to radia- tion dose.The higher dose,the lower hatching rate was found.The fertility did not increase,when it copulated many times.更多还原