花粉

So,the genetic distance could be used for the choice ofparents and for the heterosis prediction in cross breeding of Liriodendron.

因此，花粉品质、杂交亲和力和一般配合力应作为亲本选配的重要依据；基于RAPD标记的亲本间遗传距离与子代1年生苗高和地径生长量均表现为二次曲线相关，复相关系数分别为0.8235和0.5090，达极显著(H，P＜0.01)和显著(GLD，P＜0.05)程度，说明利用亲本间遗传距离进行鹅掌楸亲本选配和杂种优势预测是可行的。

Lour.The maximum pollen grain is Luffa cylindrical L.

Lour。；体积最大的花粉为丝瓜Luffa cylindrica

In Situ hybridization showed that OsUBP1 mRNA expressed in the tapetum, pollen grains, macrospore sac and the vascular bundle at the bottom of spikelets.

原位杂交分析表明，在花中OsUBP1 mRNA主要在药壁绒毡层、花粉粒、大孢子囊和颖花底部维管束中表达。

At the reproductive stage, RA68 was expressed in the inflorescence meristem, the tip of rachis branch, spikelet primordia, macrospore sac and pollen grains.

原位杂交分析结果表明：在幼苗期RA68主要在幼芽胚芽鞘的内外层细胞和幼叶原基的表层细胞中表达；转入生殖生长期后，在花序分生组织、枝梗原基顶端、花器官原基、大孢子囊和花粉粒中表达。

Having hay fever can make you more prone to food allergies.

有花粉症可以使您更容易对食物过敏。

Research shows that pollution can make allergies such as hay fever worse.

研究表明，污染可以使过敏，如花粉症更糟。

Spines on Indian mallow pollen help it cling to bird feathers.

印度锦葵花粉上的刺使它得以粘上鸟儿的羽毛。

AD MASLIN: Who are growing corn in the middle of the desert which features pollen which was genetically altered to hold a virus which will be taken away by bees whose sting transmits the virus, causing the growth of an extraterrestrial biological entity inside the human host?

马斯林：他们在沙漠的中央，种植玉米，花粉经过遗传学的改造，以便藉由蜜蜂叮咬来传染病毒，让外星生物在人类宿主中成长？

Cytoplasmic male sterility, a maternally inherited trait, is widespread among plant species.

植物细胞质雄性不育是广泛存在于高等植物中的现象，其表现为母性遗传、花粉败育，但雌蕊正常。

Recombinant transgenes in the tobacco chloroplast genome were maternally inherited and were not transmitted via pollen when out-crossed with untransformed female plants.

转基因植株的正反交试验证明外源基因在转基因后代中遵循母性遗传规律，不存在转基因的花粉漂移现象。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐