| 优质早籼水稻品种主要经济性状的相关与通径分析 |
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| 引用本文： | 杨惠杰,黄育民.优质早籼水稻品种主要经济性状的相关与通径分析[J].福建稻麦科技,1995,13(4):1-6. |
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| 作者姓名： | 杨惠杰 黄育民 |
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| 作者单位： | 福建省农科院稻麦研究所 |
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| 摘 要： | 本文研究了优质早籼水稻品种主要经济性状间的相互关系程度及其对产量的通径作用，结果表明，单株粒重与其他８个调查性状间除与千粒重呈负相关外均有不同程度的正相关。其中与每穗粒数，穗长分别达显著或极显著水准。每穗粒数对单株粒重的直接贡献最大，其次是结实率和每株穗数。结实率对产量的作用明显地受到环境的影响。穗长和着粒密度对单株粒重的直接效应为效大的负值，但通过每穗粒数而对产量产生强大的间接正效应。在优质早籼
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| 关 键 词： | 水稻 品种 通径分析 经济性状 |
CORRELATION AND PATH ANALYSIS ON MAIN ECONOMIC CHARACTERS TO GRAIN YIELD FOR HIGH QUALITY VARIETIES |
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| Yang Huijie,Huang Yumin,Li Yizhen,Zheng Jingsheng.CORRELATION AND PATH ANALYSIS ON MAIN ECONOMIC CHARACTERS TO GRAIN YIELD FOR HIGH QUALITY VARIETIES[J].Fujian Science and Technology of Rice and Wheat,1995,13(4):1-6. |
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| Authors: | Yang Huijie Huang Yumin Li Yizhen Zheng Jingsheng |
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| Institution: | Rice & Wheat Research Intitute of Fujian Academy of AgriculturalSciences. Fuzhou 350019 |
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| Abstract: | The correlation among main econemic characters of B high quality rice varieties and their path action to grain yield were analysed The results showed as follow:The panicle number/plant, grain number/panicle, plant height, paniclelength, grain density of panicle, seed set rate and harvest index appearedpositiye correlation to single plant grain yield, among which,grain number/panicle and panicle length arrived 5% or 1% significance level.path analysis results showed that grain number/panicle played the mostimportant role in the formation of grain yield.Seed set rate and paniclenumber/plant showed the second. The effect of seed set rate to grain yield wassignificancely. due to envirenment condition. The panicle length and graindencsity of panicle appeared high negative effect to single plant yield, butthey appeared strong positiye indirect effect to single plant yield throughaffecting grain number/panicle.There,fore, it is clear that in breeding high quality rice variety, itshould be payed attention to selecting large panicle with long panicl andhigh grain density. |
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| Keywords: | Rice: High quality verity: Correlation and path analysi |
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