produce pollen 中文意思是什麼
produce pollen
解釋
產生花粉-
The stamens and pistil of d. versipelis mature before the flowers open, which shows that dysosma versipelis may be autogamous. d. versipelis produce few fruits. ovaries of d. versipelis seldom develop in nature, but will develop after being pollinated with pollen of another plant
八角蓮的花在花苞未展開時，雄蕊和雌蕊便已成熟，說明八角蓮的繁育系統為自花受粉，八角蓮座果率非常低，自然狀態下，子房不膨大，人工異交后的子房有膨大現象，說明八角蓮自交低育，有生殖障礙。 -
Cycads and ginkgo have motile sperm, unlike gnetophytes and conifers, which produce pollen
蘇鐵和銀杏具活動精子可區別于買麻藤和松柏類，它們不產生花粉。 -
In seed plants it is the generative cell in the pollen grain, which divides in the pollen tube to produce two sperm cells
在種子植物中，它是在花粉粒中的生殖細胞，可以在花粉管內分裂形成兩個精子。 -
Varieties that do not produce fertile pollen are used as females.
不產生可育花粉的品種被用作母體。 -
The pap gene was also transformed into wheat by pollen tube pathway - mediated and 320 grains of transgenic wheat was harvested. the seedlings of the seeds were inoculated with the gav isolate of barley yellow dwarf virus ( bydv ) by schizaphis graminum ( rondani ) and the results revealed that 33 wheat seedlings did not produce the symptom or the symptom was very mild
通過花粉管通道法將pap基因導入小麥，收獲了轉基因小麥種子320粒，將其播種，返青后，直接用麥二叉蚜將大麥黃矮病毒（ bydv ） gav株系接種到幼苗葉片上，觀察發病情況。 -
Each lobe contains two pollen sacs that produce very large quantities of small pollen grains
左右兩側花粉囊之間是薄壁細胞構成的藥隔，藥隔中的維管束與花絲維管束相連。 -
Pollen grains are adapted according to the method of pollination, those carried by insects often being sticky or barbed, while wind - pollinated plants generally produce smooth light pollen
花粉粒與授粉方式相適應，那些蟲媒花，花粉通常是粘性的或有刺的，而具有風媒花的植物，其花粉通常光滑而輕。 -
The researchers also are studying the pollen, honey, and wax that the bees produce
研究人員也研究了蜜蜂釀制的花粉、蜂蜜和蜂蠟。 -
Though lifestyle changes and pollution ultimately leave people more vulnerable to the airborne allergens they breathe in, research has shown that the higher carbon dioxide levels and warmer temperatures associated with global warming are also playing a role by prodding plants to bloom earlier and produce more pollen
盡管人們生活方式有所改變，而且污染最終導致人們更易受吸入空氣中傳播的過敏原的影響，有關研究已顯示與全球變暖有關的高二氧化碳含量和更高的氣溫在促使植物開花期提早以及產生更多花粉方面起了一定的作用。 -
Trees usually produce pollen in the spring, grasses in the summer and weeds in the fall as part of their reproductive process
春天的樹產生了花粉，夏天的草以及秋天凋落的雜草，這些都是它們再生的過程。 -
In many gymnosperms the nuclei divide within the pollen grain to produce a small number of cells ( 2 - 40 depending on the group ) representing the male prothallus
在許多裸子植物中，細胞核在花粉粒中分裂以產生少量的細胞（ 2 40個，取決于不同種類） ，代表雄性原葉體。
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