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Journal of Agriculture ›› 2021, Vol. 11 ›› Issue (10): 23-27.doi: 10.11923/j.issn.2095-4050.cjas20200300073

Special Issue: 玉米

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Adaptability of 30 New Maize Varieties in Northern Henan

Wang Changliang(), Ai Zhenguang, Yan Lihui(), Chang Jianzhi, Li Yanchang, Hou Xianjun   

  1. Hebi Academy of Agricultural Sciences, Hebi 458031, Henan, China
  • Received:2020-03-21 Revised:2020-06-18 Online:2021-10-20 Published:2021-10-28
  • Contact: Yan Lihui E-mail:wcl_0929@163.com;xxsyz666@163.com

Abstract:

With the change of the examination and approval system, a large number of new maize varieties have emerged in the market. In order to select new maize varieties suitable for regional production in northern Henan and guide local maize production, ‘Zhengdan 958’ was used as control to compare the adaptability, stress resistance and harvest of 30 newly approved maize varieties under field condition. The results showed that the growth period of the tested varieties was 114-120 days, and all the varieties could mature normally in northern Henan, and the male and female could meet normally in the flowering period; the yield of the tested varieties was 8726.97-11973.68 kg/hm2, significantly increased compared with that of control. The yield of ‘Yudan 1851’, ‘Dehe 187’, ‘Yunong76’, ‘Zhongbo 510’, ‘Xundan 1538’, and ‘Luoyu 16’ increased by 10.4%, 8.9%, 7.5%, 7.3%, 5.8% and 4.5%, respectively, among them, the water content of ‘Yudan 1851’, ‘Dehe 187’, ‘Yunong76’, ‘Zhongbo 510’ and ‘Xundan 1538’ was relatively low at harvest time, 21.5%, 21.7%, 19.1%, 19.6% and 18.2%, respectively. The results indicate that five of the 30 varieties, such as ‘Xundan 1538’ and so on, have the characteristics of mechanized grain harvesting in northern Henan.

Key words: Maize, New Variety, Ecological Adaptability, Suitable for Grain Harvest

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