Abstract:

In order to select the new maize cultivar for Dingxing County, Hebei Province, the comparative analysis on characters and the yield of 7 maize cultivars had been studied under the specific climate and the soil conditions. The results showed that: ‘Jingdan28’ leaf blade had the highest photosynthetic rate and a good comprehensive character. The per unit yield reached 10321.5 kg/hm2. And the yield components of maize were 74025 spikes per hm2, 395 grains per spike, and the 1000 grain weight was 353.0 g. In the 7 tested maize cultivars, the yield of ‘Jingdan28’ and ‘Zhengdan958’ compared with other 5 maize cultivars were extremely different significance. ‘Jingdan28’ and ‘Zhengdan958’ were suitable for Dingxing County and other area with the close light and hot resources for realizing high-yield cultivation and increasing yield, which was of great significance.