Maize Breeding for High Yield

This paper discussed the effects of maize per unit area yield on maize and grain output of Jilin province,even the whole China,analyzed the reason of China maize's low yield of and the big increasing potential existed in Northeastern Spring corn,analyzed and compared the discrepancy of variety between China's and America's maize,advanced the project that breeding high yield and super-high yield maize,namely,the direction and goal for high yield and super-high yield breeding and the selecting process of inbred line.We deemed that the steady yield breeding and high yield breeding should be commenced at the same time: breeding hybrid with strong adaptability and stability yield,according to the heterotic patterns of Lan.×Tang group,in medium-low yielded farm land,and breeding hybrid with super high yield,according to the heterotic patterns of Reid×Lv group,in high yielded farm land.