不育的

Its contents are as follow: A description for the characteristics of Agropyron elongatum and its genome; the methods used to overcome the cross-sterility and hybrid sterility; the cross breeding procedure and the genetic analysis for it; the selected hybrids which are the Triticum-Agropyron octoploid species, the alien addition lines, the alien substitution lin...

内容介绍了长穗偃麦草的特性和染色体组型，克服杂交不育和杂种不育的方法，杂交育种的程序及其遗传分析和选出的小偃麦八倍体种、异附加系、异代换系与丰产抗病的小偃麦新品种。

This research could give basic information about the dominant genie male sterility in Brassica napus and male gametogenesis.

本研究为更深入的研究甘蓝型油菜显性核不育的育性相关基因提供了基础，并对雄配子的发育研究也具有一定参考价值。

However, the fertile 'Ziyingui' an sterile 'Dangui' do differ in gynoecium development.

但是，雌蕊的发育在可育的籽银桂与不育的丹桂之间存在明显差异。

Does this mean that people who are infertile can not get married?

按他们说的，那些不育的人就不能结婚了？

In present study, we found that Cipangopaludina chinensis has two kinds of sperm, one is the viable typical sperm, and the other is the unviable atypical sperm.

结果表明：中国圆田螺的精子具有双态现象，即既有可育的典型精子，又有不育的异型精子。

In addition, chronic cervicitis except for a cancerous risk, untreated can also cause song phlogistic, adnexitis, pelvic inflammatory disease, etc, it is often leads to a common cause of infertility.

另外，慢性宫颈炎除了有癌变的危险外，不及时治疗还可以引起宫体炎、附件炎、盆腔炎等，这往往是导致不孕不育的常见原因。

Plants with hypogenetic stamina or ungerminated pollen were observed.

转基因植株自交不能结实，用转基因植株花粉对正常植株进行人工授粉，不能正常结实，表明转基因植株花粉是不育的。

There are many factors resulted in male infertility. Majority is associated with sperm count, morphology and motility. Men with oligospermia, asthenospermia, teratozoospermia and azoospermia account for 20~25% of the cases.

引起男性不育的因素有很多，大部分与精子的数目、形态及运动功能有关，其中由于精子生成过程的停滞或障碍所导致的少精子、弱精子、畸形精子和无精子症占男性不育的20～25％。

Inflorescences terminal, yellowish, racemelike thyrses, unbranched, without sterile basal region, bisexual, pilose.

花序顶生，淡黄，总状花序状聚伞圆锥花序，不分枝，没有不育的基部区，两性，具柔毛。

In addition, there have no enough studies in the mechanism of spermatogenesis arrest induced by heat, and also there are many negative effects in the male contraceptive methods during these years like surgical ligation of vas deferens. All these factors have brings researchers to found a safety and efficacy methods for the problems in male reproduction.

因此，本研究通过高温处理未成年动物的模型，从细胞及分子水平探讨高温作用后生精功能障碍的机理，并对高温引起不育的机制进行深入研究；这些研究对阻止、延缓或减弱上述因素对人类生育能力的损害有重要意义，同时也为临床治疗一些男性不育、指导未成年男性生殖保健和探索男性避孕措施的研究提供理论基础。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。