查询词典 controlled pollination

Traditionally, pollination by wind has been viewed as a reproductive p rocess marked by random events in which the vagaries of the wind are compens ated for by the generation of vast quantities of pollen, so that the ultimat e production of new seeds is assured at the expense of producing much more p ollen than is actually used.

传统上，风媒传粉被看成是这样的繁殖过程：其特征就是由一些随即事件的发生，在这些随机事件里，风的反复无常被大量的产生花粉所补偿，以至于新种子的最终产生被保证了，其代价是产生远远多于实际使用量的花粉。

Though the idea that there is a broader and costly pollination crisis under way is entrenched (the United Nations Food and Agriculture Organisation is spending $28m on a report investigating it), the true picture is cloudier.

虽然人们普遍认同存在广泛的授粉危机，其损失惨重。联合国食品和农业组织也正在投入2800万美元的巨资编制一份关于此事的调查报告。

With selection, evaluation and the continuous self-pollination, two whole female parent lines were developed. Line A is green base fruit and hairless surface with few convexities, while line B with green base fruit and short thin thorn.

为此，我们于2000年从引进国外10品种，对此进行系统观察、鉴定、评价，通过连续自交的方式，纯化亲本，选育成A型果实基部绿色，果面有稀疏瘤突、无刺毛，B型果实基部绿色，果面有稀疏瘤突，且有短细刺毛的二个全雌性自交系亲本。

Rhodiola sachalinensis is cross-pollinated by the 11 insect species of Lepidoptera, Coleoptera. Hymenoptera and Diptera. Ten species carry pollination on their bodies.

高山红景天异花传粉，传粉媒介是鳞翅目、鞘翅目、膜翅目和双翅目的十一种昆虫，其中十种昆虫身体上携带高山红景天花粉。

The main results were as follows. Although the anthers dehisced totally at night, their pollens had already been matured when the petals were over half-opened at 8:00 am. Therefore, hand-pollination either in the morning or afternoon with this kind of pollens could increase fruit set.

结果表明，花药在傍晚自然裂开的花，其花粉在当天上午8时，花瓣呈超过半张开状态时，就已发育成熟，上午或下午人工提取这些花粉来进行授粉能提高坐果率。

The apple trees were coming into bloom but no bees droned among the blossoms, so there was no pollination and there would be no fruit.

苹果树要开花了，但没有听到蜜蜂嗡嗡地在花丛中飞，因此苹果花没有被授粉，也自然无法结果实。

The apple trees were coming into bloom but no bees droned among the blossoms, so there was no pollination and there would be no fruit.

苹果树开花了，可是没有蜜蜂在花丛中嗡嗡地采蜜，没有蜜蜂的授粉，也就没有任何果子。

Because of their small amount, simple structure or late maturing, other types of varied flowers had no significant effect on fig-wasp pollination, oviposition or development, or maturation of syconia.

除A型外的其它类型的变异花，由于数量少且结构简单，或发育后熟，对传粉小蜂的传粉、产卵以及花序的发育、成熟没有显著影响。

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。

Therefore, we suggest that pollination wasps could be introduced artificially to male syconia of phase B so as to prolong the phase D of male strains; and the match between female and male strains should be 1:2-4, namely, one female strain is cultivated with 2-4 male strains with successive D phases.

因此建议对雄株的B期花序进行人工引蜂的方法修复小蜂种群，从而延长雄性品系D期时长；而雌、雄品系配植模式应为1：2~4，即1个雌株品系与2~4个D期依次衔接的雄株品系配植。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。