释义 |
pollen grains短语⁶⁷¹⁷¹ 基本例句 🌏花粉 As compared with angiosperm, pollen grains of gymnosperms germinate and growth slowly. 与被子植物相比,裸子植物花粉具有萌发时间长、花粉管生长缓慢等特点。 cnki Before the stigma accept pollen grains, the top of the papillose cells sunk in The papillose cells wither immediately after the pollen grains touch with them. 在开花后授粉前乳突细胞的顶部发生凹陷,授粉后乳突细胞迅速萎缩。 cnki Dallas C. Mildenhall, another scientist in the anti- counterfeit network, helps track fake drugs by analyzing the microscopic pollen grains embedded in the pills or packaging. 反假药战线的另一位科学家达拉斯•米尔登霍尔通过分析药片或包装中所含有的微量花粉含量帮助检测假药。 yeeyan Induction frequency varies with the different varieties and it is the highest when the excised anthers with the pollen grains at the middle-uninuclear stage are inoculated. 品种之间诱导频率差异很显著。接种花药时,花粉单核中期诱导频率最高。 cnki Morphology of pollen grains of Meliaceae. 标题栋科花粉形态的研究。 www.cvh.org.cn Pollen grains are3- celled. 成熟花粉3-细胞型。 cnki |