广东省甜玉米(Zea mays L.saccharata Sturt)区试品种高产稳产性分析

Analysis on High and Stable Yield of Zea mays L.saccharata Sturt Varieties in Regional Test in Guangdong

为了更好地鉴定广东省甜玉米新品种的丰产性以及稳定性,本研究采用高稳系数和稳定性参数等分析方法,对2017年春植甜玉米区域试验15个甜玉米新组合区域试验数据的高产性和稳产性进行分析比较。结果表明,高稳系数最高的前五位是‘华美甜9号’>‘优群甜1号’>‘金百甜15’>‘金百甜28’>‘新美甜818’;变异系数最小的前五位为‘优群甜1号’<‘江甜019’<‘微风甜6号’<‘天丰甜618’<‘新美甜818’;结合稳定性系数,表现出高产稳产的有两个组合分别为‘优群甜1号’和‘新美甜818’,综合表明15个区试中‘优群甜1号’和‘新美甜818’的高产稳产性最好。本试验为筛选高产稳产性甜玉米品种提供参考依据。

In order to better identify the high and stable yield of new sweet corn varieties in Guangdong,the regional test data of 2017 of fifteen groups of new sweet corn combinations in Guangdong were analyzed throuh stability coefficient and stability parameter method.The results showde that the top five with the highest high stability coefficient were’Huameitian 9’>’Youquntian 1’>’Jinbaitian 15’>’Jinbaitian 28’>’Xinmeitian 818’.The top five with the lowest coefficient of variation were’Youquntian 1’<’Jiangtian 019’<’Weifengtian 6’<’Tianfengtian 618’<’Xinmeitian 818’.Combined with the stability coefficient,there were two combinations’Youquntian 1’and’Xinmeitian818’showed a high and stable yield,which indicated that they had the best high and stable yield among the 15 combinations.This study gives suggestions and provides references for sweet corn breeding on high and stable yield.This study provided suggestions for selecting high and stable yield of sweet corn varieties.