新麦32产量及其构成因素相关性分析和通径分析  

Related analysis and path analysis between the yield and its components of Xinmai 32

作　　者：朱红彩[1] 范永胜[1] 王玲燕[1] 黄金华[1] 马海涛[1] 窦士树[1] 张素平[1] ZHU Hong-cai;FAN Yong-sheng;WANG Ling-yan;HUANG Jin-hua;MA Hai-tao;DOU Shi-shu;ZHANG Su-ping(Xinxiang Academy of Agricultural Sciences,Xinxiang 453003,Henan,China)

机构地区：[1]河南省新乡市农业科学院

出　　处：《湖北农业科学》2019年第17期13-15,20,共4页Hubei Agricultural Sciences

基　　金：河南省重大科技专项(161100110400)

摘　　要：利用2015-2017年国家黄淮南片小麦(Triticum aestivum L.)区域试验和生产试验数据,运用相关性分析和通径分析方法,对新麦32的产量及其构成因素进行了统计分析,研究了产量构成因素对产量的影响及产量构成因素之间的相互关系.结果表明,新麦32具有较好的丰产性和稳产性,生产试验平均产量8679.0kg/hm^2,增产点率100.0%.经相关性分析,有效穗数、每穗粒数、基本苗、最高茎蘖数和千粒重均与产量呈正相关,其中有效穗数和每穗粒数与产量的相关性显著;偏相关分析和通径分析中,与产量相关程度由大到小均为有效穗数、每穗粒数、千粒重、基本苗、最高茎蘖数,表明有效穗数和每穗粒数对新麦32产量的作用较大,新麦32的高产栽培技术应在保证足够有效穗数的基础上,提高每穗粒数,增加千粒重.Based on the data of regional wheat (Triticum aestivum L.) test and production test in the south of Huanghuai river from 2015 to 2017,the yield and its components of Xinmai 32 were analyzed by correlation analysis and path analysis.The effects of yield components on yield and the correlation among yield components were researched.The results showed that Xinmai 32 had high and stable yields.The average yield of Xinmai 32 was 8 679.0 kg/hm^2 and the test site ratio of yield increase was 100.0% in production test.The correlation analysis demonstrated that the effective panicle number,grains per panicle,basic seedlings,maximum tillers and 1000-grain weight were all positively correlated with yield,and the correlations between yield and the number of effective panicles as well as grains per panicle were significant.In partial correlation analysis and path analysis,the correlation degrees with yield were as follows from big to small: effective panicle number,grain number per panicle,1000-grain weight,basic seedling,maximum tiller number.The results indicated that effective panicle number and grain number per panicle played a greater role in the yield of Xinmai 32.The high yield cultivation technology of new wheat 32 should increase grain number and 1000-grain weight on the basis of ensuring enough effective number of ears.

关 键 词：小麦(Triticum AESTIVUM L.) 新麦32 产量 相关性分析 通径分析 

分 类 号：S512.1[农业科学—作物学]