pollen n grain花粉粒
four-flodj pollen-grain四合花粉粒
Pollen grain formation stage花粉粒形成期
pollen grain of花粉中造粉
impotence of pollen grain花粉粒不育
Pollen Grain Morphology花粉粒形态;花粉形态
compound pollen grain复花粉粒
single pollen grain单花粉粒
pollen grain germination花粉粒萌发
Method Biological characteristics such as the epidermal cells,stomatal apparatus and its distribution,the flowering period,the characteristics of flower,fruit and seed,artificial pollination technology and preservation method of pollen grain were studied by the method of investigation,microscopic observation and satistical analysis.
方法采用实地考察、显微观察与统计分析的方法对铁皮石斛的表皮细胞、气孔器及其分布、花期进行了调查与分析,并对铁皮石斛花、果实和种子的主要特征、人工授粉方法及花粉粒保存方法进行了研究。
参考来源 - 铁皮石斛的生物学特性与开花授粉技术研究At the 2-cell stage, endoplasmic reticulum and mitochondria were still existing in tapetum. Tapetum dismissed completely at the pollen grain maturing stage.
在2—细胞花粉粒期绒毡层细胞中仍有大量的内质网和线粒体,至花粉粒成熟期绒毡层细胞完全解体。
参考来源 - 芝麻花药绒毡层发育的超微结构的研究