Abstract:
Zheng 1307 was bred by Henan Academy of Agricultural Sciences with Zheng 9805 as female parent and Zhoudou 23 as male parent through sexual hybridization and pedigree method. This variety has outstanding high and stable yield. In the regional test of Henan Province from 2017 to 2018, the average yield was 2 981.6 kg·ha
-1, 18.8% higher than the control variety Yudou 22. From 2017 to 2018, the average yield of the national Huang Huai south regional trial was 3 062.25 kg·ha
-1, 14.8% higher than that of the control variety Zhonghuang 13. In the production test in 2018, the average yield was 3 145.5 kg·ha
-1, an average increase of 16.2% compared with the control Zhonghuang 13. From 2018 to 2020, Zheng 1307 had an average output of 4 339.5, 4 546.8 and 4 638.6 kg·ha
-1, in Liangshan(4.08 ha), Shandong, Xinxiang(6.70 ha) and Huixian(7.33 ha), Henan, respectively, creating a high-yield model of large-area paid-in. Zheng 1307 passed the south Huang-Huai area and Henan province examination and approval in 2019 with the approval numbers of 20190018 and 20190012, respectively.