Effect of Marginal Advantage of Dryland Wheat Varieties on Yield Factors
To understand the marginal advantage of different dryland wheat varieties,seven varieties inclu-ding'Luohan 22','Luohan 6','Anmai 1132','Luohan 7','Sinong 219','Luohan 19',and'Zhongmai 175'were selected.The results indicated that the peripheral rows of these varieties exhibited higher yields com-pared to the central rows.The ranking of varieties based on yield from highest to lowest was:'Luohan 22','Anmai 1132','Luohan 6','Sinong 219','Luohan 19','Zhongmai 175','Luohan 7'.The ranking based on overall yield from highest to lowest was:'Luohan 22','Luohan 6','Anmai 1132','Zhongmai 175','Luohan 7','Luohan 19',and'Sinong 219'.The marginal row advantage in yield,ranked from high-est to lowest,was observed as:'Sinong 219','Luohan 19','Luohan 7','Anmai 1132','Zhongmai 175','Luohan 6',and'Luohan 22'.There are significant differences in marginal advantages among different wheat varieties,which should be fully considered in the breeding and promotion of dryland wheat varieties.