【摘 要】
：
在同一年份区试中,玉米杂种间两种稳产性参数有相当大的差异;在不同年份区试中,有的杂交种两种稳产性参数无明显差异,有的则差异很大,说明这些杂交种在不同年份、气候和环境
【机 构】
：
山西省农科院作物遗传所,山西省农科院作物遗传所,山西省农科院作物遗传所
论文部分内容阅读
在同一年份区试中,玉米杂种间两种稳产性参数有相当大的差异;在不同年份区试中,有的杂交种两种稳产性参数无明显差异,有的则差异很大,说明这些杂交种在不同年份、气候和环境条件下有不同的稳产性和适应性.杂交种通过连续三年区试之后,才能更好的评价其稳产性.杂交种的平均产量与其稳产性参数间的相关系数不显著(r(?)=0.0612,r(?)=-0.2933).杂交种稳产性与主要农艺性状特别是果穗性状变化相关联.在作物品种区域化试验中,这一分析方法似乎是育种工作者研究品种产量稳定性和适应性的一个有效工具.
In the same year area test, there were quite big differences between the two kinds of stable yield parameters in maize hybrids. There was no significant difference in the stability of two kinds of hybrids in different year trial, while others were quite different Hybrids have different stability and adaptability in different years, climatic and environmental conditions.After three years of continuous testing, the hybrids can evaluate the stability of the hybrids.The average yield of hybrids and their stability parameters The correlation coefficient was not significant (r (?) = 0.0612, r (?) = -0.2933) .There was a correlation between the stability of hybrids and the main agronomical traits, especially the changes of ear traits. It is an effective tool for breeding workers to study the stability and adaptability of variety yield.
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