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板栗空蓬的研究
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摘要:
本文从板栗胚胎发育方面研究板栗空篷的原因和找出有效控制空篷发生的方法。经显微制片观察:板栗空篷树的雌性器官发育正常,胚囊母细胞减数分裂后能发育成为有效八核胚囊,受粉受精作用顺利通过。产生空篷是由于在双受精作用完成、初生胚乳细胞分裂一圈游离核以后,不再继续分裂;合子(受精卵)发育所需有机物质未能从胚乳细胞中得到,因此合子不能发育成胚,造成空篷现象。试验表明:胚囊发育时期供给外源营养元素能有效的控制空篷的发生。
关键词:  板栗,胚囊,合子未分裂,空篷
DOI:
基金项目:
STUDIES ON THE EMPTY FRUIT OF CHINESE CHESTNUT
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Abstract:
The paraffined section of samples observed under microscope shows that the female organs develop well and successd in passing the stage of fertilization, The reason of the empty fruit is that the primary endosperm nuclei cease to divide further as would be otherwise expected as soon as the formation of free nuclei. Consequenfly, the zygotes are deficiercy in organic nu(?)ri(?)nfs necessary for developrment, thus resulting in their failure of developping into embryo. Hence, the empty fruit occurs.To avpid this phenomenon, the supply of nutrients proved needed cluring the developmeut period of blastala.
Key words:  Chinese chestnut,Blastula,Zyqote undivision

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