夏玉米杂交种农艺性状与产量的相关与通径分析
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摘要
以自主选育的13个玉米杂交组合为研究对象,采用随机区组试验,对产量与主要农艺性状进行相关和通径分析。结果表明:产量与单穗粒重和出籽率呈极显著正相关,与穗长和穗行数呈正相关但均未达到显著水平,与倒伏率呈极显著负相关,与株高和穗位呈负相关但均未达到显著水平。该研究为高产型玉米新品种的选育提供了一定的理论依据。
To determine the correlation between yield and agronomic characteristics of summer maize hybrids,thir-teen maize hybrids were tested by using genetic correlation and path analysis. The random block design was used inthe experiment. The results showed that yield per mu is very significantly correlated with grain weight per spike andseed-producing percentage,the correlation with ear length and ear rows was not significant,but a significant nega-tive correlation with lodging percentage,and there was a negative correlation with plant height and ear height but notsignificant. This study provides theory basis for the breeding of high yield maize varieties.
To determine the correlation between yield and agronomic characteristics of summer maize hybrids,thir-teen maize hybrids were tested by using genetic correlation and path analysis. The random block design was used inthe experiment. The results showed that yield per mu is very significantly correlated with grain weight per spike andseed-producing percentage,the correlation with ear length and ear rows was not significant,but a significant nega-tive correlation with lodging percentage,and there was a negative correlation with plant height and ear height but notsignificant. This study provides theory basis for the breeding of high yield maize varieties.
引文
[1]荣廷昭,潘光堂,黄玉碧.数量遗传学[M].北京:中国科学技术出版社,2003.
[2]梁晓玲,阿布来提,冯国俊,等.玉米杂交种产量的比较及主要农艺性状的相关和通径分析[J].玉米科学,2001,9(1):16-20.
[3]杨金慧,毛建昌,李发民,等.玉米杂交种农艺性状与籽粒产量的相关和通径分析[J].中国农学通报,2003,19(4):28-30.
[4]陈桂林,肖荷霞,肖云清,等.早熟夏玉米性状选择研究[J].河北农业科学,2008,12(10):1-3,28.
[5]广成,薛雁,苟升学.玉米8个产量构成因素的通径分析[J].玉米科学,2002,10(3):33-35.
[6]刘玉旭,王黎明,刘必善,等.西南地区玉米杂交种主要生物性状分析[J].玉米科学,2003,11(3):42-44.
[7]任晓菊,张翠红.不同产量水平玉米杂交种农艺性状的遗传相关与通径分析[J].农业科技通讯,2009(11):48-50.
[8]卢道文,崔俊明,裴振群,等.夏玉米杂交种主要农艺性状与产量的相关和通径分析[J].杂粮作物,2003,23(3):129-131.
[9]郭强,杨引福,蔺崇明,等.夏玉米主要农艺性状与产量的相关分析[J].农业科技通讯,2009(2):34-35.
[10]李桂芝,魏常敏,周文伟,等.玉米穗部性状与单株产量的相关及通径分析[J].北京农业,2015,3(8):31-32.
[11]李安民.夏玉米杂交种主要农艺性状的通径分析[J].农业科技通讯,2011(6):61-63.
[2]梁晓玲,阿布来提,冯国俊,等.玉米杂交种产量的比较及主要农艺性状的相关和通径分析[J].玉米科学,2001,9(1):16-20.
[3]杨金慧,毛建昌,李发民,等.玉米杂交种农艺性状与籽粒产量的相关和通径分析[J].中国农学通报,2003,19(4):28-30.
[4]陈桂林,肖荷霞,肖云清,等.早熟夏玉米性状选择研究[J].河北农业科学,2008,12(10):1-3,28.
[5]广成,薛雁,苟升学.玉米8个产量构成因素的通径分析[J].玉米科学,2002,10(3):33-35.
[6]刘玉旭,王黎明,刘必善,等.西南地区玉米杂交种主要生物性状分析[J].玉米科学,2003,11(3):42-44.
[7]任晓菊,张翠红.不同产量水平玉米杂交种农艺性状的遗传相关与通径分析[J].农业科技通讯,2009(11):48-50.
[8]卢道文,崔俊明,裴振群,等.夏玉米杂交种主要农艺性状与产量的相关和通径分析[J].杂粮作物,2003,23(3):129-131.
[9]郭强,杨引福,蔺崇明,等.夏玉米主要农艺性状与产量的相关分析[J].农业科技通讯,2009(2):34-35.
[10]李桂芝,魏常敏,周文伟,等.玉米穗部性状与单株产量的相关及通径分析[J].北京农业,2015,3(8):31-32.
[11]李安民.夏玉米杂交种主要农艺性状的通径分析[J].农业科技通讯,2011(6):61-63.