不育

In the field of general medicine men, as the viscosity of semen and the impact of increased rate of sperm activity and activities, and is an important cause of male infertility.

在男科医学领域中，由于精液粘稠度增高而影响精子的活动率和活动力，是导致男性不育的一个重要原因。

The novel CMS line and its maintainer line with the xantha leaf marker, Huangyu A, were developed after a series of backcrosses, and were appraised by the Department of Science and Technology, Zhejiang Province.

用300Gyγ射线辐照Ⅱ-32B干种子，在诱变后代筛选到全生育期黄叶突变体WYB，经多代连续回交转育，育成黄叶标记不育系黄玉A，并通过了浙江省科技成果鉴定。

The methods including backcrossing times, selecting generation were also discussed.

并讨论了改良不育系抗性的研究方法、回交次数和选择世代等问题。

Two resistance genes,Xa21 and Xa23 were pyramided into a male sterile line through crossing, backcrossing and selfing to improve its resistance.

本研究通过杂交、回交和自交将两个抗病基因聚合到不育系中，进行抗性改良。

Result There was some difference in morphological development of the male sterile line, compared with that of normal fertile plant, such as little shorter plant height, flowering 1-2 days earlier on main stem, 4-6 calyxes or stamina, 2-4 anther chamber, and the anthers were getting white or pale green color, no curl on their surface, and their abscission were postponed after flowering.

结果］甜菜单胚雄性不育植株与保持系正常植株比较，在形态学和细胞学上存在较大差异。

Male infertility refers to the infertility and abortion of unknown reasons ,after above one year of marriage,cohabited,in a normal sex life,no contraception,defending on male's testicle producing sperm abnormally or affiliated Gonadal disfunction through examinations.

男性不育症是指婚后1年以上，同居，性生活正常，未避孕而不育或不明原因流产，经检查属男性睾丸生精过程或附属性腺的功能异常者。

About 15 to 20 per cent of couples across Asia have problems conceiving.

亚洲约有15-20%的夫妇有不育问题。

Spikelets laterally compressed, with 2 to several florets, disarticulating above glumes and between florets; rachilla villous; glumes longer than lowest lemma, sometimes as long as spikelet, narrow, membranous, 1-veined; floret callus linear, hairy; lemmas lanceolate to ovate, hyaline, 3–7-veined, villous on back, entire or 2-dentate, awnless or with a terminal awn; palea glabrous or sometimes pilose; female plants with sterile anthers present.

小穗侧面压扁，具到数枚小花，脱节上述颖片和在之间小花；小穗轴具长柔毛；颖片长于最低的外稃，有时倍于小穗，狭窄，膜质，1脉；小花结茧线，有毛；外稃披针形到卵形，透明，3-7－脉，具长柔毛在背面，具牙齿的全缘或2上，或具顶生芒；无毛和有时具柔毛的内稃；雌株具不育花药宿存。

Effects of radiofrequency electromagnetic waves from cellular phones on human ejaculated semen: an in vitro pilot study.

手机发出的射频电磁波对人类精子的影响：一项体外试点研究，《生育和不育》，2008年9月18日

These results provide a clue for elucidating the mechanism of CMS.

研究结果为揭示雄性不育机理提供了理论依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。