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芍药花粉活力和柱头可授性的研究
红雨;刘强;韩岚
1.内蒙古师范大学生物系;2.内蒙古师范大学生物系 呼和浩特010022;3.呼和浩特010022
摘要:
用TTC法测定了芍药花粉的活力和寿命,用联苯胺—过氧化氢法测定了其柱头的可授期。结果表明,栽培芍药单瓣花植株的花粉活力和重瓣花植株的花粉活力在开花初期(1~2d)无明显差别,但重瓣花植株的花粉活力比单瓣花植株的花粉活力下降快;通常情况下,花粉寿命约为7d。栽培品种的柱头有个体差异,单瓣花植株有的开花后2h即可分泌粘液,而重瓣花植株的柱头在开花后,有的一直不分泌粘液,有的在开花后两天才分泌粘液;单瓣花植株的柱头可授性比重瓣花植株的强,一般分别在开花后6d和3d之内具可授性。移栽的野生芍药植株的花粉活力比栽培品种下降的慢,其寿命也较长,一般为15d;柱头的可授性和粘液分泌比栽培植株强。
关键词:  芍药    花粉    花粉活力    柱头    柱头可授性
DOI:
分类号:
Fund project:内蒙古师范大学青年科研基金项目
Abstract:
Key words:  
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