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| MCPB-ethyl疏花对富士苹果授粉受精及胚珠发育的影响 | |
| 引用本文： | 曹秋芬,孟玉平,横田清,崔贵梅,青華幸二,寿松木章.MCPB-ethyl疏花对富士苹果授粉受精及胚珠发育的影响[J].果树学报,2003,20(1):8-11. |
| 作者姓名： | 曹秋芬 孟玉平 横田清 崔贵梅 青華幸二 寿松木章 |
| 作者单位： | 1. 山西省农业生物技术研究中心,山西,太原,030031 2. 日本岩手大学农学部附属农场,日本岩手县滝沢巢子,1552 3. 日本岩手大学农学部,日本岩手县盛岗市上田 3-18-8 |
| 基金项目： | 山西省自然科学基金资助项目。 |
| 摘 要： | 通过在花期用MCPB-ethyl处理,对富士苹果花粉的发芽、花粉管的伸长以及胚珠的发育等进行了形态方面的观察和探讨,以阐明MCPB-ethyl的疏花机制。结果表明,MCPB-ethyl对花粉的发芽及花粉管的伸长没有影响,整个受精过程与对照相同,没有发现异常。但受精后胚乳核只进行了数次分裂便停止生长,此后珠皮、珠心细胞迅速解体。根据以上结果,认为MCPB-ethyl的疏花效果不是通过影响花粉的发芽或花粉管的伸长阻碍受精所致,而是使胚和胚珠的发育停止,形成离层导致了落花。 |
| 关 键 词： | MCPB-ethyl 疏花 富士苹果 授粉受精 胚珠发育 |
| 文章编号： | 1009-9980-(2003)-01-008-04 |
Effect of MCPB-ethyl on the Pollination, Fertilization and Ovule Development of Fuji Apples |
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| Cao Qiufen ,Meng Yuping ,Yokota Kiyoshi ,Chui Guimei ,Aoba Koji ,and Susuki Akila.Effect of MCPB-ethyl on the Pollination, Fertilization and Ovule Development of Fuji Apples[J].Journal of Fruit Science,2003,20(1):8-11. | |
| Authors: | Cao Qiufen Meng Yuping Yokota Kiyoshi Chui Guimei Aoba Koji and Susuki Akila |
| Institution: | Cao Qiufen 1,Meng Yuping 1,Yokota Kiyoshi 2,Chui Guimei 1,Aoba Koji 3,and Susuki Akila 3 |
| Abstract: | The aim of this study is to clarify the thinning mechanism of the apple thinner MCPB-ethyl which was sprayed at blossom stage of Fuji variety,the effects on pollen germination,pollen-tube growth and ovule development were observed.Results showed no effects on the pollen germination and pollen-tube growth were noted,but it was discovered that after fertil-ization development of the endosperm nucleus stopped after only a few reduction division proceeded,the cells of nucellus and integument disintegrated quickly.It is considered that the action of MCPB-ethyl on thinning is not due to impediment of pollen germination and pollen-tube growth;possibly it is because of the retardation of ovule development stopped,which re-sults in flower abscission. |
| Keywords: | MCPB-ethyl Thinning flower Fuji apple variety Pollination and Fertilization Ovule development |
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