| 亚种间杂交稻大穗形成机理研究I．颖花的形成特点 |
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| 引用本文： | 彭春瑞,董秋洪,涂田华,黄振辉.亚种间杂交稻大穗形成机理研究I．颖花的形成特点[J].杂交水稻,1995(5). |
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| 作者姓名： | 彭春瑞 董秋洪 涂田华 黄振辉 |
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| 作者单位： | 江西省农业科学院，江西省乐安县农技中心 |
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| 摘 要： | 比较了亚种间杂交稻赣化７号与品种间杂交稻汕优６３的枝梗和颖花的分化及发育特性，分析了颖花的分化、发育及一、二次枝梗对大穗形成的作用，提出了增加颖花数的主攻方向。
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| 关 键 词： | 亚种间杂交稻，颖花分比，枝梗分化 |
Studies on the Mechanism of Large Panicle Formation for Inter-subspecific Hybrid Rice I.Features of Spikelet Formation |
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| Peng Chunrui ,Dong Qiuhong,Tu Tianhua,Huang Zhenhui.Studies on the Mechanism of Large Panicle Formation for Inter-subspecific Hybrid Rice I.Features of Spikelet Formation[J].Hybrid Rice,1995(5). |
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| Authors: | Peng Chunrui Dong Qiuhong Tu Tianhua Huang Zhenhui |
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| Abstract: | The features of spikelet formation for inter-subspecific hybrid rice were studied with Gan-hua 7 as the material and Shanyou 63 ,an inter-varietal hybrid rice as the check.The results indicatedthat :(1) Ganhua 7 had more branches ,especially the number of secondary branches ,stronger capacity ofspikelet differentiation and less spikelet retrograde rate,than Shanyou 63, so Ganhua 7 had more spikeletsper panicle.(2)The way to increase the number of spikelets per panicle was to promote spikelet differentia-tion and increase the number of secondary branches. |
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| Keywords: | inter-subspecific hybrid rice spikelet differentiation branch differentiation |
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