历年国审玉米品种产量和品质性状变化趋势分析

陈先敏,梁效贵,赵雪,高震,吴巩,申思,林珊,周丽丽,周顺利

Analysis on the Trends of Yield and Quality Related Traits for Maize Hybrids Released in China over the Past Years

XianMin CHEN,XiaoGui LIANG,Xue ZHAO,Zhen GAO,Gong WU,Si SHEN,Shan LIN,LiLi ZHOU,ShunLi ZHOU

图2 国家审定普通玉米品种的容重（A）和千粒重（B）随年份更替变化趋势 ○：单个品种;▲：当年审定品种的平均值;●：审定品种的最大值;●：：审定品种的最小值。以年平均值进行线性拟合。*和**分别表示在0.05和0.01水平上差异显著。下同

Fig. 2 Trends of volume weight (A) and 1000-kernel weight (B) for common maize varieties released in China ○: Single variety point; ▲: Average values for each year; ●: Maximum value of the varieties released; ●: Minimum value of the varieties released. Linear curves were fitted by annual average values. For each index, * and ** indicate significance levels at 0.05 and 0.01, respectively. The same as below