摘要
在胚胎学研究的基础上，对鹅掌楸雌配子体发育过程中败育情况、双受精过程花粉生长情况以及种子形成的胚胎发育情况调查得出，鹅掌楸结籽率低的胚胎学原因主要是：①自交不亲合性；②自交不亲合的主要部位在花粉管进入花柱受阻。本文还探讨了自交不亲和性产生的原因，并提出了提高结籽率的途径。
Based on embryology research in Liriodendron chinense,the abortive female gametophyte in its development was checked up by light microscope.The development of pollen tube in fertilization was detected by fluorescence microscope or by scanning electron microscope.And the rate of seed setting was also investigated.Results were as follows:(1)The main embryology reason for low seed setting in Liriodendron chinense was self incompatibility.(2)The main site of incompatibility was in stigma canal,where pollen tube was blocked.The reasons for self incompatibility were discussed and a method to improve the rate of seed setting was put forward.
出处
《浙江林学院学报》
CSCD
1998年第3期269-273,共5页
Journal of Zhejiang Forestry College
关键词
鹅掌楸
结籽率
胚胎学
Liriodendron chinense
selfing
incompatibility
rate of seed setting
