[1]朱成松　陈新　顾和平.大豆高世代品系再选择方法的探讨[J].大豆科学,2000,19(02):140-145.[doi:10.11861/j.issn.1000-9841.2000.02.0140]
　Zhu Cheng so ngChen XinGu Heping.A STUDY ON RE- SELECTION OF ADVANCED GENERATIONSOYBEANS STRAINS[J].Soybean Science,2000,19(02):140-145.[doi:10.11861/j.issn.1000-9841.2000.02.0140]
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大豆高世代品系再选择方法的探讨

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第19卷 期数: 2000年02期 页码: 140-145 栏目: 出版日期: 2000-05-25
Title:
A STUDY ON RE- SELECTION OF ADVANCED GENERATIONSOYBEANS STRAINS
作者:
朱成松　陈新　顾和平
江苏省农业科学院经济作物研究所南京210014
Author(s):
Zhu Cheng so ng　Chen Xin　Gu Heping
Inst itute of industrial Crops, J iangsu Academy of Agricul tural Sciences, N anjina 210014
关键词:
大豆;  再选择; 遗传进度;  多元正态分布;  综合遗传变异度
Keywords:
Soy bean;  Re- selection;  Genetic v aria tio n;  Multiple no rmal di st ribution
DOI:
10.11861/j.issn.1000-9841.2000.02.0140
文献标志码:
A
摘要:
对两个大豆高世代品系进行再选择。研究了几个主要性状的遗传变异和选择潜力,探讨了性状再选择的可能性。分析了两个品系中8个性状和3个产量性状的综合遗传变异度。在一定选择压下同时进行多性状选择的遗传进展进行估计,应用多元正态分布函数的近似计算,估计了多性状综合选择时所需基础群体的规模。为作物育种中多性状遗传进度研究及群体规模估计提出了新的设想。结果表明,南农88- 48在600- 1000株供选群体中,保持每荚粒数水平不变下,可使每株荚数和百粒重获得2. 5% - 5%左右的相对遗传进度; 苏豆89- 2在1 200- 2 500左右的供选群体下,在保持产量的同时,可使成熟期、病斑率、虫蚀率获得2. 5% - 5%、2. 5% - 5% 、7. 5%- 15%的相对遗传进度。
Abstract:
Re- selection w as made in tw o adva nced genera tion soybea n st rains. Geneticva ria tion and g enetic gains o f sev eral principal characters o f tw o st rains w ere estima ted,then the possibili ty of re- selectio n wa s di scussed. The multiv ariate v ariabi li ty w as alsoestima ted fo r 8 ag ro nomic t rai ts and 3 yield- component t rai ts, the mul tiv ariate relativ eg enetic g ains o f 3 t rait s for simul taneo us seleci ton w ere a naly zed. Po pulatio n si ze neededin multiple character selection fo r di fferent demands w as ev aluated by using approx ima tecalcualtio n of multiple normal di st ribution. A new idea served fo r study o n genetic g ainso f mul tiple character and estimation of basic population si ze w as represented in thepaper. The results show ed that 2. 5% - 5% relativ e g enetic gains o f number o f pods perplant and 100- g rain w eigh t of the Nannong 88- 48 st rain ca n be g ot wi th number ofg rains per pod keeping at the o rigina l lev el f rom pure line selectio n o f 600- 1000 plantsand about 2. 5 - 5% , 2. 5% - 5% , 7. 5% - 15% relativ e g enetic gains of days tomaturity, incidence of infected seed, incidence o f insect- bi t seed of Sudo u 89- 2 straincan be o btained w hen it s yield remains a t the o riginal lev el throug h pure line selectionf rom 1200- 2500 plants.

参考文献/References:

1　盖钧镒、崔章林,中国大豆育成品种的亲本分析,南京农业大学学报, 1994, 17( 3): 19- 23

2 ? ?盖钧镒、崔章林,我国南方大豆特异种质资源研究,南京农业大学学报, 1992, 15( 2): 117- 121
3 ? ?马育华、盖钧镒,江淮下游大豆地方品种的初步研究,Ⅱ 数量性状的遗传变异, 遗传学报, 1979, 1( 3): 331- 338
4 ? ?刘金宝、盖钧镒,多元遗传变异指数的无偏估计与置信区间,南京农业大学学报, 1993, 16( 3): 11- 14
5　胡中立,多性状选择时遗传进度的估计,生物学学报, 1986, 1( 2): 131- 136
6　吴成,二维、三维正态分布的一种近似计算,数学学报, 1979, 29( 2): 119- 129
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8　朱成松、顾和平、陈新, 大豆纯系育种中群体规模的估计,大豆科学, 1997, 1: 83- 86

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更新日期/Last Update: 2016-12-27