[1]梁镇林　梁颖.间作大豆产量与主要经济性状的相关及选择[J].大豆科学,1997,16(01):54-59.[doi:10.11861/j.issn.1000-9841.1997.01.0054]
　Liang ZhenlingLiang Ying.CORRELATION BETWEEN YIELD AND RESPECTIVEMAIN AGRONOMIC CEARACTERS AND IN RELATIONTO SELECTION SOYBEAN ( G. MAX ) UNDER INTERCROPPING[J].Soybean Science,1997,16(01):54-59.[doi:10.11861/j.issn.1000-9841.1997.01.0054]
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间作大豆产量与主要经济性状的相关及选择

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第16卷 期数: 1997年01 页码: 54-59 栏目: 出版日期: 1997-02-20
Title:
CORRELATION BETWEEN YIELD AND RESPECTIVEMAIN AGRONOMIC CEARACTERS AND IN RELATIONTO SELECTION SOYBEAN ( G. MAX ) UNDER INTERCROPPING
作者:
梁镇林　梁颖
(贵州农学院农学系贵阳550025)
Author(s):
Liang Zhenling　Liang Ying
( Guizhou Agriculture Col lege, Guiyang 550025)
关键词:
间作;  大豆; 经济性状; 遗传相关;  遗传进度;  选择指数
Keywords:
So ybean;  Intercropping ;  Economic chatacter;  Cenetic co rrelatio n;  Geneticgain;  Selection index
DOI:
10.11861/j.issn.1000-9841.1997.01.0054
文献标志码:
A
摘要:
在间作条件下,测定和估算了栽培大豆产量与主要经济性状间的相关、回归、遗传进度和选择指数等遗传参数。结果表明,除百粒重与小区产量呈负向回归和相关外,其余8性状与小区产量均为正向关系。其中主茎节数、株高、开花期、有效分枝数、单株荚数和单株粒数等6个性状与产量间的基因型相关都达显著或极显著水平。而且这些性状对籽粒产量有较大的相关遗传进度( CGS′y )。在对产量选择的3种方法中、指数选择优于相关选择和直接选择。在一定范围内,虽然选择指数的遗传进度( CGS′y)有随选择因素的增加而提高的趋势,但是在只含2至3个因素的某些简单的综合选择,也可达到与多个因素选择同样高的指数遗传进度和好的选择效果。
Abstract:
The g enetic parameters about cor relation, reg ression, genetic g ain and selectio n indexw ere tested a nd estimated betw een seeds yield and respectiv e main ag ro nomic charactersof soybean ( G.max ) under intercropping wi th mai ze. The result s show ed thatreg ressio n and co rrela tio n of yield per plot wi th other 9 characters w as posi tiv e ex ceptthat i t w as nega tiv ely related fo r 100- seed w eig ht. Six of nine characters ( number ofnodes of main stem, plant heig ht , blooming date, number of ef fectiv e bra nches, numbero f pods per plant , number o f seeds per plant ) , theirs genetic cor relation coef ficient w ithyield w ere sig ni fica nt of highly sig ni ficant. These characters also caused seed yield ofhav e g rea ter co rrelation g enetic g ain ( CGSy ) . Amo ng three selectio n metho ds o f yield,index selectio n was adv antageous over bo th co rrela tion selectio n and di rect selectio n.Al though, in cer tain ra ng e, there was improv ed tendency of g enetic g ain o f selectio n index( CGS ’y ) alo ng wi th the increa se of number o f selective factors, yet in some simplecomprehensive selectio n containing only 2 or 3 facto rs, bo th CGS ’y a nd selectiv e effectw o uld be as large as mul tiple facto r selectio n.

参考文献/References:

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更新日期/Last Update: 2017-01-13