开花受精的
- 与 开花受精的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Flowers bisexual, zygomorphic, solitary, often dimorphic (cleistogamous flowers later than chasmogamous ones); pedicels axillary, 2-bracteolate.
花两性,左右对称,单生,通常二形(闭花授精花比开花受精的晚);腋生的花梗,具2小苞片。
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In the late of April of the second year, male inflorescences unbound and pollinated. When female inflorescences accepted the pollen grains, ovary development was increased in early May. With the development of either of the two ovule, funiculus, integument and nucellus were differentiated. Embryo sac mother cell came into being and the meiosis begins. Then fuctional megaspore developed into matured embryo sac that contain eight nucleuses. In the end of May, double fertilization generated.
次年,4月下旬,雄花序解螺旋散粉,雌花序开花授粉;5月上旬,雌花序授粉后,迅速增长,子房膨大,两个胚珠分化出珠柄、珠被和珠心,珠心中产生孢原细胞;5月中下旬,大孢子母细胞形成并减数分裂,功能性大孢子形成成熟的八核胚囊;5月底,发生双受精。
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Of or relating to a flower that does not open and is self-pollinated in the bud.
闭花受精的一种不开花而在花蕾内自己授粉的,或与之相关的
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Chasmogamic flowers with sepals 4, petals 4, stamens 8; seeds tuberculate, apex of tubercles with one short hair
有萼片4的开花受精的花,花瓣4,雄蕊8;种子具瘤,小瘤具一根短头发的先端 5 P。
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It begins to flower and fruit after being planted 2-3 years.Under nature pollination condition,the flowering rate of most tea plant varieties usually is very high.The flower bud differentiation of tea plant usually starts in June,lasts to December or even later.It takes about six months from bud differentiation to fruit.
茶树从花芽形成到种子成熟,共经过约一年半左右的时间,从6月到12月的6个月时间中,一方面是当年的茶花进行孕蕾、开花和授粉,另一方面是上一年受精的茶花发育形成种子并成熟的过程,两年的花果同时发育生长,都是大量消耗养分的生理和生长活动过程。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。