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玉米自交系数量性状遗传参数研究
引用本文:黄开健,杨华铨,黄艳花,谭华,韦国能.玉米自交系数量性状遗传参数研究[J].广西科学,1999,6(4):290-292.
作者姓名:黄开健  杨华铨  黄艳花  谭华  韦国能
作者单位:广西玉米研究所, 南宁明阳 530227,广西玉米研究所, 南宁明阳 530227,广西玉米研究所, 南宁明阳 530227,广西玉米研究所, 南宁明阳 530227,广西玉米研究所, 南宁明阳 530227
摘    要:用数量遗传学的原理和方法,对20个常用自选和引入的玉米自交系进行数量性状遗传参数的田间试验研究。结果表明:穗粗、行粒数、百粒重与单株产量的遗传相关达到正向极显著吐丝期、株高、穗行数、单株叶片数、单株产量的传力较高,受环境影响小,宜早代选择;单株产量的遗传进度较其余性状高,获得的遗传增量大,直接选择效果较为理想;穗粗、行粒数、百粒重以及它们所构成的选择指数对单株产量的相关遗传进度都较高,通过这3个性

关 键 词:玉米  自交系  数量性状  遗传参数  性状方差分析
收稿时间:1998/7/23 0:00:00
修稿时间:1999/7/23 0:00:00

Genetic Parameters of Quantitative Characters in Maize Inbred Lines
Huang Kaijian,Yang Huaqian,Huang Yanhu,Tan Hua and Wei Guoneng.Genetic Parameters of Quantitative Characters in Maize Inbred Lines[J].Guangxi Sciences,1999,6(4):290-292.
Authors:Huang Kaijian  Yang Huaqian  Huang Yanhu  Tan Hua and Wei Guoneng
Institution:Guangxi Maize Research Institute, Mingyang, Nanning, Guangxi, 530227, China,Guangxi Maize Research Institute, Mingyang, Nanning, Guangxi, 530227, China,Guangxi Maize Research Institute, Mingyang, Nanning, Guangxi, 530227, China,Guangxi Maize Research Institute, Mingyang, Nanning, Guangxi, 530227, China and Guangxi Maize Research Institute, Mingyang, Nanning, Guangxi, 530227, China
Abstract:The field experiment for the genetic parameters of quantitative characters in 20 maize inbred lines were studied with quantitative genetic methods. The ear diameter,kernel number per row,100 kernel weight to grain yield per plant kernel weight had significant positive genetic correlation;The days to silking,plant height,row number,leaves number per plant,grain yield per plant kernel weight had the higher heritability,therefore those characters could be considered as early generation selection;The grain yield per plant kernel weight had the higher genetic advance,and obtained the best effects on the direct selection;The ear diameter,kernel number per row,100 kernel weight and their selection index had the higher correlated genetic advance to the grain yield per plant kernel weight.It''s genetic inscrease will arised by these characters indirect or synthesis selection.
Keywords:maize  inbred lines  quantitative character  genetic parameter
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