Comparative Research on 15 Maize Varieties in Eastern Guanzhong Area
In order to screen high-yield and high-quality maize varieties suitable for the eastern part of Guanzhong,14 maize varieties were compared with Zhengdan 958(CK)in this study,and the growth period,agronomic traits,economic traits and yield were measured.The re-sults showed that Zhongyu 303 had a semi-compact plant type,lodging resistance,no bald tip,100-grain weight of 33.7 g,and a yield of 724.4 kg per acre,which was 14.0%higher than that of Zhengdan 958(CK).It ranked first in the comprehensive ranking and could be used as the preferred cultivar in this region.The plant type of Jingke 999 was semi-compact,the ear was uniform,and the yield was high.It had obvi-ous advantages over Zhengdan 958(CK),with an increase of 12.6%,and could be used as an alternative variety in this region.