查询词典 stud breeding

Moreover,20 to 35% of the 2n pollens induced byColchicine developed anomalously,which also affected the effects of triploid breeding.

此外，秋水仙诱导产生的2n花粉中，还有20~35%发育表现异常，也会对三倍体得率产生较大的影响。

Since 1987, active in building a financial anti-desertification projects, seed bases, animal breeding, one equivalent to the desert eco-tourism eco-engineering model of the desert zone, present in this model around the region to carry out wildlife conservation work and the edge of the desert governance "China desert safari park" has begun to take shape.

自1987年以来，积极建设一个融防沙治沙工程、种苗基地建设、动物繁育、沙漠生态旅游等于一体的沙漠生态工程示范区，目前在这个示范区内围绕开展野生动物保护工作和沙漠边缘治理的"神州荒漠野生动物园"已初具规模。

All breeders are in favor with shape breeding and long for the new cultivars with higher ornamental value, especially double flowers with its noble and plump beauties. Studies with eudicots of Arabidopsis thaliana and Antirrhinum majus led to the ABC model of flower development.

长期以来，百合花形育种一直是人们关注的最重要的育种目标之一，人们希望获得具有更高观赏价值的花卉新品种，比如重瓣花，它具有的高贵丰满之美，促使人们在各种花卉中都希望获得重瓣的突变体。

Anuran amphibians exhibit complex vocal behavior, which is an important mechanism in breeding and species identification. In the past it has been assumed that caudate amphibians are generally silent, with the exception of a few which have been shown to emit faint squeaks and barks.

无尾类两栖动物的复杂的声行为对其繁殖与物种的识别具有重要的作用，而有尾类除了少数种类可以发出微弱的"吱吱"声或吠声外，在过去一直被认为是基本不发声的。

First,using apomixis to establish a new method of rapid breeding.

利用无融合生殖建立快速育种新方法。

Second,apomixis and polyploidization were used to search new breeding method.

利用无融合生殖和多倍体化探索育种新途径。

The information will be useful for the development of apomixis technology and therefore has important implications for crops breeding.

本研究结果可作为建立无融合生殖生物科技之本土基础资料，并提供禾草作物育种时选材之依据。

But utilization of apomixis in breeding procedure could significantly shorten time of selection and fix heterosis.

然而利用无融合生殖特性进行育种将可能大大缩短育种年限，固定杂种优势。

This paper discussed the sorghum apomixis type, occur mechanisms, genetic research and breeding prospects and for the eventual realization of sorghum heterosis fixing provides a theoretical basis and a reference for the study of other crops.

论述了高粱无融合生殖类型、发生机制、遗传研究及其育种前景，为最终实现高粱杂种优势固定提供理论依据，也为其他作物研究提供借鉴。

Apomixis provides a unique opportunity to fix and utilize hybrid vigor. A number of research programs around the world have tried to use apomixis as an important plant-breeding tool.

无融合生殖是指不经过雌雄配子融合而产生种子的一种特殊生殖方式，能使基因型的杂合性得以保持，从而可以固定杂种优势，对作物育种具有极其重要的意义。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。