| 棉花叶枝发生发育规律的初步研究 |
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| 引用本文： | 展茗,李万九.棉花叶枝发生发育规律的初步研究[J].华中农业大学学报,1998,17(5):425-429. |
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| 作者姓名： | 展茗 李万九 |
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| 作者单位： | 华中农业大学农学系 |
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| 基金项目： | 国家科委农村科技司资助 |
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| 摘 要： | 运用发育追踪法，统计和相关分析研究了叶枝发生发育规律。试验结果表明，在本试验条件下，只有主茎上第４节及其以上节位的叶才能发育成有效叶枝，且叶民铃数与其着生节位呈显著正相关关系。叶枝经打顶后，地枝铃主要以伏桃为主。在１－４个叶枝范围内，叶枝数与全株成铃烽呈显著间接正相关关系，当达到３个叶枝时，单株成铃数达到本试验条件下增产显著所要求的铃数。但叶枝数超过一定限度后，全株成铃数会减少。随着果枝始节的提高
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| 关 键 词： | 棉花 叶枝 成铃数 |
THE INITIAL RESEARCH OF OUTBREAK AND DEVELOPMENT REGULARITY OF COTTON NOURISHING SHOOTS |
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| Zhan Ming\ Li Wanjiu\ Zhang Xiuru.THE INITIAL RESEARCH OF OUTBREAK AND DEVELOPMENT REGULARITY OF COTTON NOURISHING SHOOTS[J].Journal of Huazhong Agricultural University,1998,17(5):425-429. |
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| Authors: | Zhan Ming\ Li Wanjiu\ Zhang Xiuru |
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| Abstract: | The outbreak and development regularity of the nourishing shoots of cotton was studied by using the method of following development, statistical and correlation analysis. Only axillary buds at the 4th and above nodes could develop into useful nourishing shoots, and the number of nourishing shoot bolls significantly and positively correlated with the node at which the nourishing shoot grew. Because of the tip pruning of the nourishing shoots, bolls formed before August 15 constituted the main part of the bolls per nourishing shoot. Within the range of 1 to 4 nourishing shoots, indirect positive correlation between the number of nourishing shoots and the bolls per plant was obvious. What's more, when the plant had 3 nourishing shoots, bolls per plant reached the standard required by significant yield increase under the condition of this experiment. But if the number of the nourishing shoots grew out of some limit, the bolls per plant would decrease. The higher was the first fruiting node, the larger was the rate of bolls of nourishing shoots to bolls per plant, and bolls per plant whose first fruiting node was 9th or higher were more than the ones per plant whose first fruiting node was lower than 9th. These initial experimental results showed a different new way for cotton production to attain the object of higher yield and higher income. |
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| Keywords: | cotton nourishing shoot number of bolls |
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