授粉

With 3 waxy maize varieties and a normal maize variety as the tested material, the Logistic equation was used to fit the grain filling process so as to analyze the relationship between the a series of filling parameters and days after pollination and compared the grain filling characteristics of normal maize and waxy maize.

方法］以3个糯玉米品种和1个普通玉米品种为试验材料，用Logistic方程拟合籽粒灌浆过程，分析一系列籽粒灌浆参数与授粉后天数的关系，比较普通玉米与糯玉米的籽粒灌浆特性。

As the pollination drops evaporate, they contract, carrying the pollen grains through the micropylar canal and into contract with the nucellus.

当做授粉下降蒸发，他们缩短，经过 micropylar 运河携带花粉谷粒和进入契约之内以 nucellus。

They relay on wasps to pollinate them, and the small ostiole is an opening developed especially for the wasp to crawl through.

他们以接力月蜂授粉，小孔是一种开放的、小的发展，特别是对黄蜂爬行通过。

Because of heavy heterozygosity of cassava genome caused by stack propagation and outcross in longtime, the practice of biotechnology would resolve these problems in broad background.

由于木薯是无性繁殖的异花授粉作物，传统育种方法在基因重组方面受到局限；生物技术的应用却能够在很大程度上解决上述问题。

High outcrossing rate might lead to high gene flow frequency and the maximum frequency of gene flow was determined by outcrossing rate.

实验结果显示，强烈的自花授粉竞争可能是导致栽培稻品种间极低的异交率以及基因漂移频率的主要原因之一。

Based on the brief introduction of the ohgin,distribution and the collection and conservation of the germplasm resources of apricot,mainly on the variety classification,pollination biology,evaluation of palynology and molecular biology,the genetic and variation characters of hybrid progeny,breeding objectives and technique were reviewed.

文摘：在简要介绍杏的起源、分布及种质资源收集保存的基础上，着重对杏品种资源的分类、授粉生物学、孢粉学及分子生物学评价以及杏杂种后代遗传变异特点、育种目标及育种技术进行了综述，并提出了今后的研究方向。

Based on the brief introduction of the ohgin,distribution and the collection and conservation of the germplasm resources of apricot,mainly on the variety classification,pollination biology,evaluation of palynology and molecular biology,the genet

文摘：在简要介绍杏的起源、分布及种质资源收集保存的基础上，着重对杏品种资源的分类、授粉生物学、孢粉学及分子生物学评价以及杏杂种后代遗传变异特点、育种目标及育种技术进行了综述，并提出了今后的研究方向。

The pearl millet pollenreadily germinated on the wheat stigma and more than one pollen tubes grew into thestyle and entered the embryo sac.

波斯小麦已授粉的207个子房中，11.11％既形成胚又形成胚乳，7.25％只形成胚，而1.93％只形成胚乳，在这个杂交中受精率和成胚率分别为20.29％和18.36％。

The result showed that pericarp thickness was significantly different among different varieties and among different days after pollination.

结果表明，不同品种和不同授粉天数的果皮厚度差异明显；同一品种籽粒内不同部位间的果皮厚度也有较大差异，这种差异在灌浆前期更为明显，主要表现为胚背面的果皮较胚面薄，之后这种差异逐渐缩小。

Previous studies of floral phyllotaxis in this family focused on one species, Calycanthus floridus.

这种类型的信息在了解、维持和改造植物和授粉者系统时就变的很关键。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。