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Yunong 76, A New Corn Species Bred by Our School, Has Passed the National Approval for the Spring Sowing Area in Northeast China

作者:    信息來源:    發布時間: 2022-02-21

On December 30, 2021, the Ministry of Agriculture and Rural Affairs published Announcement No. 500. Yunong 76, a New corn species bred by our college, has passed the National Approval for the Spring Sowing Area in Northeast China (the approval certificate No.:GSY[20210049]). The suitable planting area has expanded from the summer sowing corn planting area in the Huang-Huai-Hai area to the spring sowing corn planting area in East and North China. Yunong 76, a new corn species bred by our college, passed the approval of Henan Province in 2018 with the approval certificate number of YSY [20180011] and passed the national approval of Huang-Huai-Hai Summer Sowing Planting Area in 2019 with the approval certificate number of GSY [20190010].

Yunong 76 Huang-Huai-Hai summer-sown corn, a new corn species, has a growth period of 101.5 days, and the northeast and north China mid-late maturing spring-sown corn has a growth period of 127.7 days. It is semi-compact corn with a plant height of about 300 cm, an ear height of about 100 cm, a cylindrical ear, yellow and semi dent; Moderately resistant to stem rot, susceptible to ear rot, susceptible to southern corn leaf blight, susceptible to Curvularia leaf spot, susceptible to the rough dwarf virus, moderately resistant to gall smut and highly susceptible to southern rust; Grain bulk weight 767 g/L, crude protein content 11.90%, crude fat content 3.44%, crude starch content 72.58%, lysine content 0.35%; from 2016 to 2017, Yunong76 participated in the regional test of Huang-Huai-Hai summer-sown corn group, the average yield per mu in two years was 693.2 kg, which was 7.8% higher than that of Zhengdan 958. In the production test in 2017, the average yield per mu was 662.0 kg, which was 6.45% higher than that of Zhengdan 958; from 2019 to 2020, Yunong76participated in the regional test of the northeast and north China mid-late maturing spring-sown corn, and the average yield per mu in two years was 840.8 kg, which was 5.0% higher than that of Zhengdan 958. In the production test in 2020, the average yield per mu was 803.0 kg, which was 8.0% higher than that of Zhengdan 958.

It is suitable for planting in Henan Province, Shandong Province, Hebei Province, Shanxi Province, Beijing, Tianjin, Guanzhong Irrigation Area of Shaanxi Province, north of Huaihe River in Jiangsu and Anhui Provinces, Xiangyang Region in Hubei Province, most areas of Siping City, Songyuan City, and Changchun City in Jilin Province, some areas of Liaoyuan City, Baicheng City, parts of Jilin City, south of Tonghua City, most areas of Liaoning Province except eastern mountainous areas, Dalian City and Donggang City, and most areas of Chifeng City and Tongliao City in Inner Mongolia.

In 2021, the Central Economic Working Conference focused on building a new development paradigm, in which “solving the problems related to seeds and farmlands” is an important task, seeds are the “chip” of agriculture, and farmland is the “lifeblood” of food production. Only by grasping these two key elements can we fundamentally ensure national food security.




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