对...授粉

It isnt subject to seeds and embryo forming under inter-hybridization condition. Their autogamy is also tested and the result show that most of lily varieties have low rata self-fruitfulness. Lilium davidii var.

在对这些百合进行了自交后表明，大多数品种自交的结实率不高，兰州百合在进行自交时，不同的授粉方式后有不同的结实率，其中异株异花授粉时的结实率略高。

Following characteristics of pollen germination and pollen tube growth were observed with fluorescence microscope.

用荧光显微镜对自交不亲和强度不同的梨品种丰水和菊水自花授粉及以丰水为母本的异花授粉后的花粉萌发及花粉管生长特性进行观察。

In 2006 America's National Academy of Sciences released a report on the status of pollinators in North America that concluded "for most North American pollinator species, long-term population data are lacking and knowledge of their basic ecology is incomplete."

但事情的真相依然扑簌迷离。2006年美国科学院发布了一份关于北美授粉状况的调察报告，其结论是："对大多数北美地区的授粉动物而言，既缺乏长期收集的动物数量数据，也缺乏对其基本生态学的研究。"

For studying the pollen xenia of plum, pollens of 5 different plum cultuvars including Bulin, Longyuanqiuli, Oishi Wase, Japanese plum and Changli 15 were used to pollinate Frinar plum respectively, and the effect in the current year on fruit quality was observed.

为研究李的花粉直感效应，选用了布林、龙园秋李、大石早生、秋姬、长李15李品种的花粉给黑宝石李授粉，以自然授粉为对照，观察其对当年果实品质的影响。

Morphology of sexual reproduction abortion in'High Noon', a distant hybridization cultivar of tree peonies(P.delavayi var. lutea×P. suffruticasa), was systematically investigated with light microscopy and cross. The results indicated that:(1)The stamens matured earlier than the gynoecia and pollens dispersed at the early stage of anthesis but the rate of normal 2-celled pollens were merely 2.41%.

采用光镜和杂交等方法对牡丹远缘杂交一代品种'正午'有性生殖败育进行系统形态学观察发现：(1)雄蕊较雌蕊先成熟，初花期即散粉，正常2-细胞花粉仅占2·41%，且花粉在多种培养液中、在自身和其它两种柱头上均不萌发；柱头在谢花期大量分泌粘液，进入最佳授粉状态；(2)同一胚珠中多个大孢子母细胞减数分裂高度不同步，胚囊发育与受精延迟，部分胚乳游离核在细胞化时期分裂异常；(3)自花及品种内异花授粉不结实，天然授粉结实率为0·053‰~0·130‰。

We consider that the lomitation and dependence of xenogamy are important factors among the factors influencing seed set.

在影响结实率的诸多因素中，异花授粉的效率以及植物对异花授粉的依赖程度是重要因素。

The other approach is to be elected monoclonal were threshing, planting, respectively, and lines of future generations to choose, compare, until the election of new varieties, said the plant selection, commonly used in self-pollinating crops or often cross-pollinated crop breeding.

另一做法是将当选单株分别脱粒，分别种植，然后对后代株系进行选择、比较，直至选出新品种，称单株选择，常用于自花授粉作物或常异花授粉作物育种。

The A type varied flowers with umbrella-inflorescence shape in female syconia affected pollination by fig wasps in normal female flowers, required more nutrients and growth space, and affected growth and development of normal female flowers. With a large number of type A flowers, unpollinated female syconia show delayed litter fall or hanging on the trees and loss of nutrients.

雌花序中伞形花序状的A型变异花影响传粉小蜂对正常雌花的授粉，与正常雌花争夺养分和生长空间从而影响正常雌花的生长发育，大量A型变异花的存在使未授粉的雌花序延迟凋落或挂树不落，造成养分流失。

A type variation flowers with umbrella-inflorescence-shape in female syconia affected the normal female flowers be pollinated by fig wasps, affected growth and development of normal female flowers for contesting nutrients and growth space. Being a great deal of A type variated flowers, unpollinated syconia were delay or not to fall, and resulted that the nutrient run off.

雌花序中伞形花序状的A型变异花影响传粉小蜂对正常雌花的授粉，与正常雌花争夺养分与生长空间影响正常雌花生长发育，大量A型变异花的存在使未授粉雌花序延迟凋落或挂树不落，造成养分的流失。

But the crossing combination of Asiatic hybrids ×Oriental hybrids and Longiflorum hybrids ×Oriental hybrids were not easy to success, there were two reasons: one was male parent was unfit for female parent, the other was cut-style pollination was unfit for these crossing combination, must used another method of pollination to try it again.

以亚洲百合为母本、东方百合为父本的杂交组合和以麝香百合为母本、东方百合为父本的杂交组合，座果率极低，推测有两种可能的原因：一是，所选父本的花粉对母本的亲合性较差；二是，切割柱头授粉的方法不适合于这些组合，应进行其它授粉方法的试验。

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。。。。