摘要
对啤用大麦的11个农艺性状与小区产量、千粒重、蛋白质含量及α-淀粉酶含量分别进行通径分析和比较研究。结果表明:对产量有显著影响的性状为单株粒数、单株粒重、主穗粒重及主穗粒数;对千粒重、α-淀粉酶含量、蛋白质含量等部分酿造品质有显著影响的主要性状为主穗穗长、单株粒重、单株穗数、主穗粒数、分蘖数、基本苗数及有效穗数(指667 m2有效穗数,下同),其中基本苗数和单株粒重的遗传决定系数h2B<50%;主穗粒重、主穗粒数这2个性状受遗传效应的影响较大,同时对千粒重和α-淀粉酶的直接作用效应较大,所以在育种实践中应特别注意该性状的锁定及选择。
Correlation and path analysis for 11 agronomic characteristics of beer barley with plot yield,1 000-grain weight,protein content and α-amylase content.The results showed that： some traits which had prominence correlation with yield were the number of seeds per one plant,grain weight per one plant,the number of seeds and the seed weight in main ear.And 1 000-grain weight,protein content and α-amylase content were significantly affected by the length of main ear,grain weight per one plant,panicles per one plant,the number of main ear,tiller number,basic seedling number and effective panicles number per one acre,in which the h2B of basic seedling number and grain weight per one plant were less than 50%;the heredity effect of the number of main ear and grain weight of main ear was more than other characters,and they had a greater influence on 1 000-grain weight and α-amylase content.Therefore,the number of main ear and grain weight of main ear should be paid more attention in the practice of breeding.
出处
《浙江农业学报》
CSCD
北大核心
2010年第6期808-812,共5页
Acta Agriculturae Zhejiangensis
基金
农业部公益性大麦行业科研专项(nyhyzx07010)
农业部大麦现代农业产业技术体系建设(2060302)
关键词
大麦
农艺性状
相关分析
barley
agronomic characters
correlation analysis
