摘要
本研究以2013-2022年山西省审定的683个普通玉米品种为材料,按春播特早熟Ⅰ区、春播特早熟Ⅱ区、春播早熟区、春播中晚熟区、机收组和南部复播区6个不同区组分类,分析玉米品种的品质变化趋势.4个品质指标分析结果显示,中晚熟区品种容重含量平均值最高,特早熟Ⅰ区品种最低,两者间差异显著(P＜0.05);粗淀粉含量年度变化规律整体呈上升趋势.各品质指标在不同区组间的变异,特早熟Ⅰ区最大,早熟区次之.未来5～10年山西省玉米选育品种和审定上,中晚熟玉米品种的比例会继续增多.
Abstract
In this study,683 ordinary maize varieties that were audited by Shanxi province from 2013 to 2022 were collected,and classified into spring sowing extra early maturing zone Ⅰ,spring sowing extra early maturing zoneⅡ,spring sowing early maturing zone,spring sowing middle late maturing zone,maturing zone of spring sowing.Four indices were measured to analyze the changing trend of corn quality of registered varieties.Bulk density content in the mid-late zone was the highest,while the content in the extra early maturing zone Ⅰ was the lowest,there was a significant difference between the two(P＜0.05).The annual variation pattern of crude starch content was generally on the rise.With remarkable variations in all quality indices across different zones,showing the extra early maturing zone Ⅰ was the highest,followed by the early maturing zone.The results indicate that ordinary maize audited quality has achieved progresses in Shanxi in the recent 10 years,but the overall quality indices of varieties need further im-provement,especially for the fat content.In the future 5-10 years,the proportion of mid-late maturing corn varieties will continue to increase in Shanxi's corn breeding and certification.
基金项目
山西省基础研究计划项目(202203021211277)
中央引导地方科技发展资金项目(YDZJSX2022C018)
中央引导地方科技发展资金项目(YDZJSX20231C014)
院士工作站专项资助项目(20190423)
山西农业大学生物育种工程项目(YZGC090)
NETL
NSTL
万方数据