Discussing on Breeding and Cultivation of High Density Tolerant Maize Cultivars

Opinions set forth that high-planting-density in maize production was the results of progress of productivity when utility rate of luminous energy became the main factors limiting maize production,and also was the requirement of mechanization from theoretical and practical angle.Breeding and application of density tolerent maize cultivars,relying on reasonable density were the key to the success of maize production.In the procedure of maize production high-planting-density should be used properly according to the ecological conditions.Take advantage of good germplasm resources with high density tolerance to comprise base material,select in early generation at 90 000 ~120 000plants·hm-2 density were suggested.