Analysis on Agronomic Traits of 36 Wheat Cultivars in Northern Anhui

摘要

The genetic diversity of 35 wheat varieties was analyzed by hierarchical clustering and regression analysis based on yield, number of basic seedlings, maximum number of tillers, effective panicles, plant height, number of grains per panicle, and 1 000grain weight. The linear regression analysis of wheat yield depending on wheat agronomic traits showed that the effects of the wheat agronomic traits on yield ranked as number of basic seedlings > number of effective panicles > number of grains per panicle > 1 000grain weight > maximum number of tillers > plant height. With the mean value of all the genetic distance as reference, grouping was performed to the results of the clustering analysis. The tested materials were divided into 7 groups. Group I included ‘Annong 1202’, ‘Annong 1207’, ‘Lemai W11160’, ‘SC1201’, ‘Yannong 173’, ‘Taike 081’, ‘Womai 06040’, ‘Tianyun 5126’, ‘Liumai 66’ and ‘Jimai 5319’, 10 cultivars in total; group II consisted of ‘Zhongmai 155’, ‘Feilai 0591’, ‘Zhongmai 1’, ‘Fu 0608’, ‘Gushenmai 9’, ‘Yikemai 6’, ‘Longanmai 968’, ‘Sui 1209’, ‘Lvyu 13’, ‘Zhengmai 110’ and ‘Longanmai 968’ , 11 cultivars in total; group III included ‘Longke 1221’, ‘Longmai 109’ and ‘Changhe 23’, 3 cultivars in total; group IV comprised ‘Quanmai 504’, ‘Wanmai 998’ and ‘Jian 182’, 3 varieties in total; group V included ‘An 1202’, ‘An 1240’, ‘Yuanfeng 0735’, ‘Fumai 9375’, ‘Yuanyu 15’ and ‘Su 11033’, 6 in total; group Ⅵ only included ‘Xinmin 8’; and group VII only included ‘Jimai 6852’. These results are of great theoretical and practical significance to the improvement of wheat yield and quality through the combining of wheat cultivars and the coordination of above agronomic traits.