春小麦新品种“甘春18号”的丰产性稳产性及适应性分析

Analysis of Yielding Ability, Stability and Adaptive Faculty of the New Veriety of Spring Wheat Ganchun №.18

以“甘春１８号”、“高原６０２”、“晋２１４８”等１３个品种（系）为材料，采用多年多点随机区组设计，对“甘春１８号”进行了丰产性、稳定性及适应性分析，结果表明，“甘春１８号”较对照增产显著，１０个试点３年平均产量达７０２６．１５ｋｇ／ｈｍ２，部分试点达９０００ｋｇ／ｈｍ２具有较高的丰产潜力。“甘春１８号”的回归系数ｂ＝０．９７３。采用基因型分组法分析，“甘春１８号”位于高产稳产区间。因此，“甘春１８号”属于丰产性、稳产性好。

Analysis on yielding, stability and adaptive faculty of 13 verieties (lines), such as Ganchun №.18, Gaoyuan 602, Jin 2148, and so on, were carried out by means of randomized block design with different sites and years. The result indicated that the mean yield of Ganchun № 18 was 7 226.15 kg/hm 2, the peak yield was 9 621 kg/hm 2. The regression coefficient of Ganchun № 18 was approximately 1 (b=0.973). Ganchun № 18 was located in the region of high and stable yield by means of grouping genotypes. The result indicated that Ganchun № 18 had higher and more stable yielding ability and wider adaptive faculty.