查询词典 endosperm
- 与 endosperm 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Capsules, berries or stone fruit, seeds have endosperm.
蒴果、浆果或核果,种子有胚乳。
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Seed subglobose, without endosperm, without strophiole; seed coat membranous.
种子近球形,没有胚乳,没有种阜;种皮膜质。
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Seeds 2, or 1 with 1 sterile locule, yellow-brown, dark castaneous, or black, ovoid, globose, or ellipsoidal, glabrous or piliferous, strophiolate or not, with or without endosperm, sometimes with an appendage at end opposite to strophiole.
种子2,或者由于1室不育而仅有1个种子,黄棕色,深栗色,或者黑色,卵球形,球状,或者椭圆体,无毛或者具毛,具种阜或无,有或无内胚乳,有时种阜对面有一个附属物。
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Seeds with oily endosperm; cotyledons small, suborbicular.
种子具油性的胚乳;子叶小,近圆形。
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Suspensor A temporary stalklike row of cells, found in angiosperms, that differentiates from the proembryo by mitosis and pushes the embryo into the nutritive endosperm after fertilization.
胚柄:被子植物中临时由一串细胞排列而成的茎样结构。
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It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.
水稻受精过程经历的时间表如下:授粉后,花粉在柱头萌发;花粉萌发至花粉管进入珠孔大约需要0.5小时;授粉后0.5小时左右,花粉管进入一个助细胞,释放精子;授粉后0.5-2.5小时,精卵融合形成合子;授粉后约10.0小时,合子第1次分裂,合子期为授粉后2.5-10.0小时;授粉后1.0-3.0小时,精核与两极核融合;授粉后约5.0小时,初生胚乳核分裂。
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Seeds with bony tegument; endosperm thin; cotyledons oblate, rounded; radicle short.
种子有多骨的皮;胚乳薄;子叶扁球形,绕行;胚根短。
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Mm. Seeds 1 or 2, subglobose; testa membranous; endosperm fleshy.
种子1或2,近球形;种皮膜质;胚乳肉质。
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Seed 1; testa absent; endosperm copious; embryo large.
种子1;种皮缺席;胚乳丰富;胚大。
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Seed 1; testa absent; endosperm starchy; embryo rather large.
种子1;种皮缺席;胚乳古板;胚相当大。
- 推荐网络例句
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Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.
万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。
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He unstepped the mast and furled the sail and tied it.
他拔下桅杆,把帆卷起,系住。
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Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.
因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。