摘要
[目的]为山西玉米的品质遗传改良提供理论依据。[方法]对2003~2012年山西省审定玉米品种的容重、粗淀粉、粗蛋白、粗脂肪及赖氨酸含量的变化进行分析。[结果]2003~2012年山西省审定玉米品种的平均容重和粗淀粉含量有升高的趋势;2003~2012年山西省审定玉米品种的粗脂肪含量基本无变化;2003~2008年山西省审定玉米品种的赖氨酸含量基本无变化;2003~2012年山西省审定玉米品种的粗蛋白含量略有下降。[结论]粗淀粉含量和容重随玉米产量的提高而提高,而粗蛋白含量、粗脂肪含量的赖氨酸含量等指标具有相对的稳定性,主要由遗传基因所控制,因此必须加强专用型玉米选育。
[Objective] This study aimed to provide a theoretical basis for the genetic improvement of maize quality in Shanxi Province. [Method] The variations in unit weight, crude starch content, crude protein content, crude fat content and lysine content of maize cultivars approved by Shanxi Province during 2003-2012 were analyzed. [Result] In Shanxi Province, the average unit weight and crude starch content of maize cultivars approved during 2003-2012 were trended to be increased;the crude fat contents of maize cultivars approved during 2003-2012 showed no significant changes; the lysine contents of maize cultivars approved during 2003-2008 were essentially unchanged; the crude protein contents of maize cultivars approved during 2003-2012 declined slightly. [Conclusion] The crude starch content and unit weight of maize increased with the increased yield; the crude protein content, crude fat content and lysine content showed certain stability, and they were mainly controlled by genes. Therefore, the breeding of particular maize should be strengthened.
基金
Supported by Shanxi Provincial Fund for Development of Modern Crop Seed Industry(2014ZYFFZ-07)
Twelfth Five-Year Plan of Shanxi Academy of Agricultural Sciences for Maize Breeding(11yzgc136)~~
关键词
玉米
粗蛋白含量
粗脂肪含量
粗淀粉含量
赖氨酸含量
容重
Maize
Crude protein content
Crude fat content
Crude starch content
Lysine content
Unit weight