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通常调查棉铃虫累计卵量的方法是:定点定株,自始卵前到产卵终每天调查全棉株的着卵累计得出。但棉铃虫的产卵部位包括心叶、叶片、叶背、叶柄、腋芽、蕾、果枝、主茎等多部位,给调查工作带来很多不便:且因调查人员的经验不同而误差较大。为了寻求比较简便、快速、准确的调查方法,8年来,我们对二代棉铃虫卵的着落部位进行了系统的调查,从而测定了心叶及主茎上部4片叶的着卵量与累计卵量的相关性,并建立了回归式,经F测验和x~2测验理论值与实测值无显著差异,可以在测报工作中试用。
The usual method of investigating the cumulative amount of eggs of cotton bollworm is: fixed-point planted from the egg before oviposition every day to investigate the total ovum obtained from the cotton plant. However, the spawning parts of cotton bollworm include heart leaves, leaves, leaf backs, petioles, axillary buds, buds, fruiting branches, main stems and other parts, which bring a lot of inconveniences to the investigation work. In order to seek a simple, rapid and accurate method of investigation, we investigated the loci of the second generation cotton bollworm eggs for 8 years to determine the number of eggs and accumulated eggs And established a regression, the F test and x ~ 2 test theoretical and experimental values were not significantly different, you can try in the test work.