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农学学报

农学学报 ›› 2014, Vol. 4 ›› Issue (4): 41-44.

• 林学 园艺 园林 食用菌 • 上一篇    下一篇

元宝枫花性变异初探

张朋 丰震 杨凯 程甜甜   

  • 收稿日期:2013-12-02 修回日期:2013-12-16 出版日期:2014-04-20 发布日期:2014-04-20

The Brief Study on the Change of Flora Sex of Acer truncatum

  • Received:2013-12-02 Revised:2013-12-16 Online:2014-04-20 Published:2014-04-20

摘要： 较详细地描述了元宝枫雄花、两性花的形态特征，通过4年连续观测元宝枫种群中雄花、两性花的分布比例及相互转化情况，发现元宝枫种群中存在S型和D型2类个体，其中D型个体约占40%。元宝枫花性年度间呈动态变化现象，可由两性花植株完全转变为雄花植株，因此其结实小年不是因为成花减少，而是出现花性转变，据此推测元宝枫花的性别决定可能存在新机制。

关键词: 红掌, 红掌, 农艺性状, 多样性, 分析

Abstract: The morphology characteristics of male and cosexual flowers of Acer truncatum were described in details. It was found that there were two types, type S and type D, of flora in Acer truncatum, and type D was accounting for about 40% through four years continuous observation. The flora sex showed dynamic change that it can be transformed into male flowers from cosexual flowers completely. So the off year of Acer truncatum was not the result of flowering decreased, but the change of flora sex, and there may be a new mechanism of Acer truncatum blossom to be revealed.