Effects of Row Spacing on Yield of Different Types Wheat

Effects of row spacing on grain yield and its composing of different type wheat were studied.The results showed that there was remarkable difference on grain yield and yield composing in different types wheat. There was extremely remarkable difference on grain yield and ear number in different types wheat under the same planting density.The trend is that the highest grain yields and ear number of different types wheat under same planting density were obtained at row spacing 16.67 cm.The optimum row spacing required for realizing the biggest ear number of different types wheat was different because row spacing and variety of different types wheat did the effect each other on ear number.It suggests that grain yield may be increased by adjusting row spacing for raising ear number according to the effects of each yield components on yield of different types wheat.