The effects of successive inbreeding progenies of Brassica napus L. on the embryo development were studied in comparison with the open-pollinated population and hybrids from inbred lines.
以自由授粉群体和品系间杂种为对照，研究了甘蓝型油菜连续自交后代在胚胎发育上表现的效应。
Further reducing the number of wolves by poaching leaves this population very vulnerable to further inbreeding, explained Dr Chapron.
沙普龙博士解释说，通过偷猎进一步减少狼的数量，极易引发更深层次的近亲繁殖。
Breeding groups are being used to control inbreeding in a breeding population and to effectively achieve maximum genetic gains in some tree improvement programs of the United States.
在美国的一些林木育种项目中，育种群已用来控制种子园的近交、捕获最大的遗传增益的有效措施。
The version 6.11 and its higher version of Statistical Analysis System (SAS) provides an inbreed procedure which can calculate inbreeding coefficients of large animal population.
SAS统计分析系统(6.11版本以上)中提供了一个可用于大型畜群近交程度分析的INBREED过程。
The aim of breeding is to obtain continuous genetic advance whilst maintaining the genetic variation and limiting the inbreeding level of the population.
育种工作的目的在于保持群体遗传变异、控制群体近交的同时，获得持续的遗传进展。
The main cause of population decline include: using the same kind of host, inbreeding, and lower ratio of bethylid and host.
长期利用一种中间寄主因蜂种营养来源单一，导致蜂种生命力下降。
The main cause of population decline include: using the same kind of host, inbreeding, and lower ratio of bethylid and host.
长期利用一种中间寄主因蜂种营养来源单一，导致蜂种生命力下降。
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