安徽农业科学2016，Vol.44Issue(20)：18-19,80,3.
0210～2014年陕西省春播玉米新品种试验品种主要指标变化规律
Trendsin Main Ingredients of Varieties in the Sprin g Maize New Variety Trials of Shaanxi Province during 2010-2014
摘要
Abstract
Objective] The aim was to provide theoretical reference for the reform of maize validation, corn regional test and varieties tested in Shanxi Province by exploring trends in the spring maize new variety test during 2010-2014 in Shaanxi Province.[ Method] Selecting top three varieties according to yield to participate in the maize regional trials of Shaanxi Province from 2010 to 2014, the major indicators were selected according to year as the unit and average value was calculated, the variation law of corn varieties during 5 years was compared.[ Result] ①Growth period of the tested varieties appeared a decreased trend, reduced 6.17 days in all, with an average of 1.23 days every year.② Plant height and ear height showed a decreased trend, the plant height was decreased by 0.420 m in all, with an average of 0.106 m every year;the ear height was decreased by 0.300 m in all, with an average of 0.076 m every year.③ Ear length tortuously reduced, it have a trend to about 18cm;hundred grain weight showed a decreased trend, decreased by 3.23 g in all, with an average of 0.81 g every year;rows per ear was about 16, kernel per row was about 37.[Conclusion] The tested varieties of the spring maize regional trials of Shaanxi Province gradually trend to high yield, lodging resistance, high density and appropriate mechanization from the changes of the main components during 5 years.关键词
陕西省/春播玉米/品种Key words
Shaanxi Province/Spring sowing maize/Varieties分类
农业科技引用本文复制引用
张增川,尹素芬,李勤,龙德祥,张秀英,徐海军..0210～2014年陕西省春播玉米新品种试验品种主要指标变化规律[J].安徽农业科学,2016,44(20):18-19,80,3.基金项目
陕西省科技统筹创新工程计划（2011KTZB02－01－02）。 （）
