| 杂交水稻三交种的优势表现及其配合力 |
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| 引用本文： | 苏孝道,杨仁崔,卢浩然.杂交水稻三交种的优势表现及其配合力[J].福建农林大学学报(自然科学版),1990(1). |
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| 作者姓名： | 苏孝道 杨仁崔 卢浩然 |
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| 作者单位： | 福建农学院作物遗传育种研究所，福建农学院作物遗传育种研究所，福建农学院作物遗传育种研究所 福建省漳州市科委 |
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| 摘 要： | 采用5×5不完全双列杂交观察杂交水稻三交种的产量优势表现,并对株高等13个农艺性状进行配合力方差分析。部分三交种产量极显著高于对应的单交种。三交种单株产量与特殊配合力相对效应值和配合力总效应值均呈极显著相关。剑叶长以基因非加性效应的作用为主;千粒重、有效穗数和单株产量虽然基因加性效应大于非加性效应,但后者仍占相当的比重;株高、抽穗期、主穗长、结实率、剑叶宽、粒长、粒宽和粒形以基因加性效应的作用为主。
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| 关 键 词： | 杂交水稻 三交种 配合力 |
HETEROSIS AND COMBINING ABILITY OF HYBRID RICE IN THREE-WAY CROSS |
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| Su Xiaodao Yang Rencui Lu Haoran.HETEROSIS AND COMBINING ABILITY OF HYBRID RICE IN THREE-WAY CROSS[J].Journal of Fujian Agricultural and Forestry University,1990(1). |
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| Authors: | Su Xiaodao Yang Rencui Lu Haoran |
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| Abstract: | The heterosis and combining ability of hybrid rice in three-way cross were studied in a 5×5 imcomplete diallel cross for 13 agronomic characters in 1987.The results are as fol- lows:(1)The grain yield per plant of some hybrid rice in three-way cross is highly significantly greater than that of their corresponding hybrid rice in single cross.(2)The grain yield per plant is highly significantly correlated with SCA and TCA(Total combining ability),respectively.(3)Non-additive effects has a predominant role for the flag-leaf length.Both additive and non-additive effects were detected in grain yield per plant,1000-grain weight,number of effective tillers per plant,number of grains per panicle,though there is the predominance of additive genes.Additive effects has the predom- inant role for plant height,days to flowering,panicle length,flag-leaf width,percentage of fulled grains,grain length,grain width and L/Wratio of grain. |
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| Keywords: | hybrid rice hybrid rice in three-way cross combining ability |
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