摘要
以1975～2009年河北省审(鉴)定命名的43个夏谷品种为材料,运用逆序系数分析法,对不同品种主要农艺性状的遗传改进进行分析。结果表明:随着年代的推移,品种产量结构中有利于增加产量的主要性状,如单穗重、穗长和千粒重均呈正向改进的趋势,逆序率分别为93%、80%和80%;出米率呈显著降低趋势;生育期、穗粒重、株高、粗脂肪含量和粗蛋白质含量5个性状变化不显著。
The genetic improvement for main agronomic traits of 43 summer millet varieties approved by Hebei Crop Variety Examination Committee during 1975-2009 were analyzed using inverted sequence analysis.The results showed that the main characters that were propitious for increasing yield,such as spike weight,spike length and 1 000 grain weight were positive ameliorated tendency with ages process,and the inverted sequence rate were 93%,80% and 80%,respectively.The percentage of shelling debcreased obviously,while the growth period,grain weight per spike,plant height,crude fat and crude protein changed little.
出处
《河北农业科学》
2011年第1期57-59,共3页
Journal of Hebei Agricultural Sciences
基金
河北省科技基础条件平台建设项目(09967119D)
关键词
夏谷
审定品种
遗传改进
农艺性状
逆序系数分析
Summer millet
Approved variety
Genetic improvement
Agronomic characters
Inverted sequence analysis
