查询词典 sterility

The results showed that: 1 In male sterility line and its normal variety, the change of the phytohormones contents was obvious during the whole bud development stages in fertile and male sterile lines, and the hormone contents were significant different, indicating that the reduction of the contents of IAA and GA3 and the increase of the Contents of ABA and ZR were associated with the occurrence of male sterility.

结果表明：1在花蕾的整个发育时期，不育系和可育系4种内源激素含量变化趋势差异明显，且含量高低明显不同。IAA和GA3含量的降低及ABA和ZR含量的提高可能与亚麻雄性不育的发生密切相关。2IAA/ABA、IAA/ZR、IAA/GA3和GA3/ABA在两者间的变化趋势不一致，且大小差异很大。

In order to the use of the male-sterility quickly, enriching the basic theories of male-sterility,we used the eggplant male sterile lines and their maintainers as materials, to analyze the physilolgical and biochemical characteristics and parthenocarpy by investigation of energy, substance and polyamine metabolism.

为了加快茄子雄性不育的利用进程，丰富茄子雄性不育的基础理论，本试验以雄性不育系及其保持系为试验材料，从能量代谢、物质含量、多胺代谢着手，对与茄子雄性不育性及单性结实有关的生理生化特性进行了分析，试验结果如下： 1 苗期不育系叶片中IAA和GA_3含量的不足，ZR的盈积以及ABA/(IAA+ZR+GA_3)比值的失衡导致了茄子雄性不育系苗期生长缓慢。

The factors affecting the seed-set rate ofintersubspecific hybrids include embryo sac sterility,pollen sterility,anther dehiscence and non-synchronization of male and female sexual organsdevelopment in the same spikelet.

对水稻亚种间杂种及其稳定的多胚品系SB-1进行了细胞学、胚胎学和遗传学研究，主要结果如下：1、影响杂种低结实率的因素包括胚囊败育、花粉败育、花药不开裂和雌雄性器官发育进程不一致。

Among the females, 60 ones (30%) were treated by celioscope and therefore were pregnant. Conclusion Celioscopy takes an imprtant role in the diagnosis and the therapy of sterility, and therefore acts as a routine method to female sterility.

腹腔镜术在女性不孕症的诊治中具有其他技术不能替代的重要价值，应作为女性不孕症诊治中的一种常规方法。

The S type of CMS is a gametic sterility type, and its pollen sterility was considered to be associated with the expression of R region in the mitochondria.

其中两个含有完整R区的BamHI片断已被克隆测序，结果表明在这两个片断中cox1和cox2分别位于R区上游，但与之位于不同的极性单链上。

Female sterility widely existed in plantae. The first report of plant female sterility appeared in the 1950s.

雌性不育现象在植物界广泛存在，有关该类现象的报道始于上个世纪50年代。

The effect of imposed sterility and culling on the reproductivity and population size of Ratlike hamster in enclosures was studied by using surgical operation. This study aims to testify two modeling predictions: fertility control can achieve similar result as simple culling, and sterility of both sexes can achieve an extra result in reducing reproductivity of hamsters. The key factors in population regulation of the hamster were also discussed.

本文采用结扎不育的方法研究了不育和&灭杀&对围栏内大仓鼠实验种群繁殖力和数量的作用，主要验证模型的两个预测：不育能够达到灭杀的效果；双性不育优于单性不育，同时探讨了大仓鼠种群调节中的关键因子。

At the same time, a chimera gene pTA29-Barnase, which can induce male sterility in transformants, was transferred into three seedy cultivars (Valencia, Ponkan and Anliucheng) to obtain male sterility citrus plantlet in the future. It is a new strategy for seedlessness breeding in citrus.

同时，以柑橘的无核育种为目标，在建立的转化体系的基础上，将人工雄性不育基因pTA29-barnase转入三个多籽品种（伏令夏橙、〓柑、暗柳橙）中，以期创造新的柑橘雄性不育类型，并为今后柑橘的无核育种提供新的思路和材料。

The male sterility resulted from nucleus-cytoplasmic interaction (nuclear genome of common wheat--cytoplasmic genome of D〓-type cytoplasm donor), D〓-type CMS was sporophytic sterility pattern.

一、D〓型CMS系的花粉育性对光周期的变化不敏感（不同于已有光敏不育性的报道），属非光敏细胞质雄性不育系；其不育性起因于核质互作（普通小麦核基因组--D〓型细胞质变异基因组）、属孢子体不育类型；雄性不育受核内隐性基因控制、育性恢复受核内显性基因控制。

The molecular markers identified here would be useful in introducing a set of new and known sterility-neutral alleles to solve the pollen sterility problem in subspecific Ft hybrids.

本研究获得的分子标记将有助于聚合尽可能多的中性亲和基因以解决亚种问F1杂种的花粉不育性问题。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。