无性繁殖

The response may change the fate of the turions in the second year,and affect the maintenance of the populations.

在野外池塘中，利用3种不同营养状况的底质研究底质营养盐对菹草生长及养分分配的影响，结果表明：沉水植物菹草面对底质营养盐的胁迫出现了急性的生理生化反应，在生长初期叶片总的可溶性糖含量在肥沃的底质上高于贫营养底质上；根、茎、叶和石芽各构件都具有异速生长现象，并且表现规律不一样；菹草的根冠比随底质营养盐的不同而变化；随着营养条件对菹草生长胁迫加重，根、冠的异速生长愈明显，同时石芽的N∶P和C∶N比率显著受底质营养盐的影响，而菹草叶片和茎N∶P和C∶N比率不受底质肥力的影响，这些响应将改变石芽第2年的命运和影响种群的维持；在胁迫生境下，菹草首先分配资源到无性繁殖体--石芽上以便维持种群的延续，以回避策略应对底质营养盐胁迫。

Layering A method of vegetative propagation in which RUNNERS or STOLONS are pegged down to the soil surface.

压条法：植物进行无性繁殖的一种方法。

The genetic study suggested that the carbendazim-resistance in these mutants could be steadily inherited by asexual and selfed reproduction, and the resistance was controlled by the same single major gene both in laboratory mutants and field resistant isolates, the different levels of resistance or the same resistant level in different strains maybe conferred by mutations at different sites or one site with different allelic mutations. The gene compensates for the sensitivity to MDPC was allelic to that governs the carbendazim resistance, but the mutation for increasing sensitivity to MDPC in this gene could get the pathogen highly resistant to carbendazim.

抗药性遗传研究表明，在所研究的抗药突变体中，抗药性在自交和无性繁殖后代中能稳定遗传；室內抗药突变体和田间抗药菌株对多菌灵的抗药性由同一个主效基因控制，但它们发生突变的位点不同或者同一碱基位点发生了不同的突变；对MDPC的敏感性也是由单个基因控制的，该基因与控制多菌灵抗性的基因是等位基因，当该基因发生对MDPC的敏感性增加的突变时会使病菌对多菌灵产生高水平抗性。

But rotifers, the only confirmed "ancient asexuals" in the animal kingdom, have survived by abstaining from sex for the last 30 to 50 million years.

唯一在动物世界里被证实是&古老的无性生殖&的轮虫，在过去的3000至5000万年前通过无性繁殖幸存下来。

In a design of square,regressive and orthogonal rotation with five factors,a field trial was conducted using Toona sinensis.This sdudy was undertaken to investigate the effects of gibberellic acid(GA3), 6-benzy laminopurine, thiourea C.P.(NH2 2CS, Zinc Sulphate(ZnSO4), sa!tpeter(KNO3) for stratification on the dormancy-breaking of Toona sinensis,and to explore a more effective dormancy-breaking method and its mechanism.

本研究以一、二年生的无性繁殖红香椿苗为材料，采用五因素二次正交旋转组合设计，综合定量地研究6—BA、GA_3、硫脲、ZnSO_4、KNO_3五种化学药剂及其组合对香椿休眠解除的影响及其机理进行研究，并探讨更为有效的打破香椿休眠的方法。

Cloning is most simply defined as the asexual reproduction of biological material.

谢谢。克隆最简单的定义是生物原料的无性繁殖。

These characteristics could be inherited steadily in their asexual reproduction.

结论］这些性状在无性繁殖中能稳定遗传。

The asexual form of reproduction could help population numbers.

这种无性繁殖的形式可以有助于提高鲨鱼的数量。

Clone Cloning is the English transliteration simply, it is an artificially induced asexual reproduction.

克隆是英文clone的音译，简单讲就是一种人工诱导的无性繁殖方式。

Cloning of animals is a group of special animal groups, through human asexual reproduction means, From a background of animal cells is the same group of individuals.

克隆动物是一群特别的动物群体，是人类通过无性繁殖的手段，从一个动物细胞获得背景相同的个体群的过程。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。