| 冬小麦性状遗传力的初步研究 |
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| 引用本文： | 王恒立,庄巧生,曾启明,李英婵,李登春.冬小麦性状遗传力的初步研究[J].作物学报,1963,2(2):178-184. |
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| 作者姓名： | 王恒立 庄巧生 曾启明 李英婵 李登春 |
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| 作者单位： | 中国农业科学院作物育种栽培研究所
(王恒立，庄巧生，曾启明，李英婵)，中国农业科学院作物育种栽培研究所(李登春) |
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| 摘 要： | 本试验采用遗传变量和表现型变量的比值来估算性状的广义遗传力。估算结果以抽穗期的遗传力最高,达72.04%,一株穗数最低,仅25.57%。穗长、株高、千粒重的遗传力分别为69.21%,66.45%和57.55%。其他性状的遗传力则较低。根据遗传力的估值,对各组合的生产力进行了鉴定。试验指出双亲之一如对当地环境条件很不适应,则遗传力误差很大。双亲如均能适应当地环境条件,则遗传力又可能随双亲的差距而递增。利用变异系数的平方代替相应的变量来估算广义遗传力可以起到一定的矫正作用。
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| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
A PRELIMINARY STUDY ON THE HERITABILITY OF WINTER WHEATS |
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| H.L.Wang,C.S.Chwang,C.M.Tseng,Y.C.Li T.C.Li.A PRELIMINARY STUDY ON THE HERITABILITY OF WINTER WHEATS[J].Acta Agronomica Sinica,1963,2(2):178-184. |
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| Authors: | HLWang CSChwang CMTseng YCLi TCLi |
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| Institution: | Institute of Crop Breeding and Cultivation; Chinese Academy of Agricultural Sciences; Peking |
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| Abstract: | Eight F_2 populations of winter wheat hybrids and their parents were space-planted inrandomized blocks with two replications.Heritabilities (in the broad sense) of nine characters,namely,date of heading,plant height,ear length,number of fruiting spikelets per ear,earsper plant,seeds per ear,seed wears per ear,seed weight,and yield per plant were calculatedas the percentage of genotypic variance of phenotypic variance.Date of heading gave the highest heritability,72.04%,and ears per plant the lowest,25.57%.E... |
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