北部冬麦区冬小麦区试品种（系）的稳定性和适应性分析

为客观准确地评价区域试验中北部冬麦区冬小麦新品种（系）的丰产性和稳产性,以2014-2015年度国家北部冬麦区水地组冬小麦品种（系）区域试验产量数据为资料,应用AMMI模型对小区产量的基因型、环境和基因型与环境（G×E）互作进行了研究。结果表明,稳定性最好的为农大3486、京农12-79,较好的有科遗4174、长6794、中麦93,较差的为航麦109、晋太102、众信7198;试点以天津武清、山西榆次、新疆阿拉尔、河北遵化、山西屯玉分辨力较高,河北固安、河北滦县、北京顺义、北京昌平分辨力较低。在对区域试验中品种（系）稳定性和试点的分辨力进行判定时,综合使用双标图和稳定性参数两种方法,既直观又准确。

Analysis of Stability and Adaptability of Winter Wheat Varieties in the Regional Trials of the Northern Wheat Region of China

To study the yield potential and stability of winter wheat varieties in regional trials, the data of grain yield were collected from irrigated land group of winter wheat varieties regional test in the Northern Winter Region of China during 2014-2015 cropping season and analyzed by additive main effects and multiplication interaction (AMMI) model. The results could explain clearly the genotype, environment and interaction effect of genotype by environment (G×E) of wheat yield. The Nongda 3486 and Jingnong 12-79 showed the best stability, followed by Keyi 4174, Chang 6794 and Zhongmai 93, whereas Hangmai 109, Jintai 102 and Zhongxin 7198. Wuqing, Yuci, Alaer, Zunhua and Tunyu had the best resolution, while Gu'an, Luanxian, Shunyi of Beijing, Changping of Beijing were of lower resolution. The combination of AMMI biplot and stable parameters is intuitive and accurate for evaluating the stability and adaptability of winter wheat varieties in regional trial.