fertility ratio
- fertility ratio的基本解释
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人口出生率
- 更多网络例句与fertility ratio相关的网络例句 [注：此内容来源于网络，仅供参考]
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Assulta was studied in the present paper. Based on the successful reciprocal crosses, sex ratio and fertility of the hybrids in larvae, pupae and adults were investigated. In addition, the physiological mechanisms and genetic basis of host plant ranges of H.
在此基础上，利用解剖和观察等方法对子一代幼虫、蛹和成虫的性别比例和可育性进行了较为系统的研究；并利用比较的方法对棉铃虫和烟青虫食性广度的生理机制和遗传基础进行了初步研究。
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Of the T〓 CaMVBT transgenic plants, the normally-growing plants showed two kinds of pollen fertility and seed-setting ratio under long-day condition. 62. 9% of which showed poorer pollen fertility, smaller, thinner seeds than those of untransformed regenerant control and that seeds were nonviable.
2自然启动子调控的rolB转基因农垦58S中，少数T〓代单株表现植株较矮小、茎杆细、叶片有卷曲或皱缩、生长势减弱、可育条件下败育等与CaMVBT转化的T〓代部分单株相似的表型。
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Only nine isolates mating with tester produced ascospores with a fertility ratio 6.2%.
有9个菌株与标准菌株交配产生了子囊孢子，可育率为6.2%。