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Journal of Agriculture ›› 2019, Vol. 9 ›› Issue (2): 1-6.doi: 10.11923/j.issn.2095-4050.cjas18020004

Special Issue: 小麦

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Suitable Sowing Rate of Five Main Wheat Cultivars in Henan Province

  

  • Received:2018-02-10 Revised:2018-03-17 Accepted:2018-05-24 Online:2019-02-13 Published:2019-02-13

Abstract: To clarify suitable sowing rate of wheat cultivars in Henan Province, five main wheat cultivars including ‘Zhoumai22’, ‘Xinong979’, ‘Zhengmai7698’, ‘Aikang58’ and ‘Bainong207’ were used as the materials, and the experiments were conduced at different areas. The effects of different sowing rates on the yield and yield components were studied. The results showed that the yield increased gradually with the increase of sowing rate, and reached the maximum when the sowing rate was 187.50 kg/hm2, while the yield showed a declining trend with the continuously increasing sowing rate. In the respect of yield components, the spike number per area showed an upward trend with the increase of sowing rate, but the kernel number per spike and 1000-grain weight showed a downward trend. In the suitable sowing rate, the yield order of five cultivars was:‘Bainong207’>‘Zhoumai22’>‘Zhengmai7698’>‘Aikang58’>‘Xinong979’. Taken together, the suitable sowing rate of wheat cultivars is from 150.00 kg/hm2 to 225.00 kg/hm2, and 187.50 kg/hm2 is the optimum sowing rate which can obtain the maximum yield.