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为了更准确有效地筛选高产、稳产、适应性强的品种和对试验地点的评价,采用GGE双标图对国家区域试验中第八轮甜荞区域试验数据进行分析。结果显示:定荞1号、黑小荞、榆荞-5为产量高、稳定性好的品种;甜荞品种榆9002和西农9976较相似,均来自于陕西榆林,具有地理上的亲缘关系;试验地点相对集中分为三组,第二组和第三组中有相似的试点;定荞1号处于所有试点之中,具有普遍适应性,而榆荞-5、兴甜1号、威甜02-198和黑小荞具有特殊的适应性,在局部地区有推广价值。利用GGE双标图准确筛选出优良品种,同时显示了品种间的相似程度;根据GGE双标图可对试点,尤其是相似试点进行选择和取舍。
In order to screen the varieties with high yield, stable yield and adaptability and evaluate the test sites more accurately and effectively, the regional test data of the eighth round of buckwheat in the national regional test were analyzed by GGE double plot. The results showed that Dingqiao 1, Heixiaoqiao and Yuqiu-5 were the varieties with high yield and good stability. The sweet-buckwheat varieties Yu 9002 and Ximeng 9976 were more similar, both of which came from Yulin of Shaanxi Province and had the geographical relationship ; Relatively concentrated test sites are divided into three groups, the second group and the third group have similar pilot; Ding buckwheat 1 is in all the pilot, with universal adaptability, while the elm buckwheat -5, sweet sweet 1, Granville Sweet 02-198 and black buckwheat has a special adaptability, in some areas have promotional value. The GGE double-labeled maps were used to screen out excellent varieties accurately, and the similarities among the varieties were also shown. According to the GGE double-labeled maps, the selection and selection of the pilot, especially the similar ones, could be made.