1, Zheng Dan 958
The maize variety Zhengdan 958 was approved by the National Crop Variety Approval Committee in 2000, and successively by Shandong, Henan and Hebei provinces in 2023. The growth period of summer sowing area in Huanghuaihai is about 100 days.
2. Xianyu 335
Xianyu 335 passed the national examination and approval in 2023 and 2023, respectively, with compact plant type, plant height of 286 cm, and ear height of 103 cm, which is the second only to Zhengdan 958 in planting area at present.
3. Jingke 968
Jingke 968 corn seed passed the national examination and approval in 2023, with a wide suitable area, which is suitable for planting in spring corn areas in northeast China, northwest China and southeast China. The plant type is semi-compact, the plant height is 296 cm, and the ear position is 120 cm, which is absolutely dominant in Tongliao, Inner Mongolia.
4. De Meiya 1
Demeiya No.3 corn was approved by Heilongjiang Province in 2023, which is suitable for planting in the upper limit of the fourth accumulated temperature zone in Heilongjiang Province. In 2023, it was certified by Inner Mongolia, and it was planted in areas where the active accumulated temperature in Inner Mongolia was more than 2200℃ ≥ 10℃.
5. Heyu 187
In 2023, Tongzheng Bench passed the examination and approval in Jilin Province, and passed the national examination in 2023. It is suitable for the second active temperate zone in Heilongjiang Province, parts of Yanbian and baishan city in Jilin Province, eastern Tonghua and Jilin City, central and eastern Inner Mongolia, and early-maturing spring corn in Northeast China. The plant type is semi-compact.
6. Demeiya No.3
In 2023, it was approved by Heilongjiang Province, which was suitable for the second accumulated temperature zone to go offline and the third accumulated temperature zone to be planted online. It was approved by Jilin Province in 2023 and is suitable for planting in Yanbian and Baishan early-maturing corn areas of Jilin Province.
7. Liangyu 99
Liangyu 99 maize seeds in northeast China are about 128 days from emergence to maturity, and the growth period of summer sowing is about 98 days, with compact plant type and close planting tolerance. Suitable for plots with medium fertility or above, various planting methods can be adopted.
8. Tiannong 9
Tiannong 9 maize was approved by Liaoning Province in 2023, and it is suitable for planting in Fushun, Tieling, Jilin, Heilongjiang and Tongliao, Inner Mongolia. It is one of the varieties with a large extension area in suitable areas of Heilongjiang in recent years.
9. Yufeng 303
Yufeng 303, a maize variety, emerged from seedling to maturity 125 days in the spring maize area of northeast China, which is equivalent to Zhengdan 958. Its plant type is semi-compact, its plant height is 296 cm, its ear axis is red, its seeds are semi-dentate, and its 100-grain weight is 36.9 g.
10, Jundan 20
Jundan 20 maize seed passed the national examination and approval in 2023, which is suitable for planting in summer maize areas in Henan, central and southern Hebei, Shandong, Shaanxi, Jiangsu, Anhui and Yuncheng, Shanxi. Its plant type is compact and it is still popularized in summer sowing areas.