| 摘要: |
| 本文应用花粉粒壁的剥离技术和扫描电镜对棉花四个栽培种(陆地棉北农-1号;海岛棉8763依;中棉完县紫杆和草棉金塔)的花粉粒进行观察。着重观察比较各棉种的花粉粒大小、外壁纹饰和刺的分布。经剥离花粉粒壁后,还观察了花粉粒外壁结构包括外壁—1(复盖层,柱状层和基层)和外壁—2的结构以及萌发孔的构造排列状况。 |
| 关键词: 陆地棉 海岛棉 花粉粒外壁 扫描电镜 草棉 栽培棉 复盖层 萌发孔 剥离技术 棉花 |
| DOI： |
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| 基金项目:国家自然科学基金资助课题. |
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| THE COMPARATIVE:STUDIES ON THE POLLEN GRAINS OF FOUR CULTIVATED COTTON SPECIES BY USING THE POLLEN WALL STRIPPING TECHNIQUE(PWST)AND THE SCANNING ELECTRON MICROSCOPE(SEM) |
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| Abstract: |
| This paper is the comparative studies on the pollen grains of four cultivated cotton species e.g.Gossypium hirsutum(B.A.No.1),G.ba- rbadense(8763E),G.arboreum(Wanxian-purple stalk)and G.harba- ceum(Golden Tower),by using PWST and SEM.The pollen grains size, the exine ornamentation and the spine distribution of four species we- re observed respectively and comparatively.Having been stripped,the pollen wall,the exine structure including exine-1(tectum,bacula lay- er and pediam)and exine-2 and the structure an... |
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