Gao Long L2 is a high-yield maize variety, which is famous for its yield of tons of grain per mu (667m2) and lodging resistance of iron stalks. Under the condition of high water and fertilizer, Gao Long L2 has created a record of high yield of 32,000 Jin per hectare, which is praised by the industry.

Gao Long L2, a maize seed, was bred by the High-yield Breeding Room of Maize Research Institute of Heilongjiang Academy of Agricultural Sciences, and was approved by Heilongjiang Variety Approval Committee in 2004. The approved name of this variety is Gao Long L2, and the trade name is Baoyu Gao Long L2.

This maize variety has a wide adaptability, the growth period is about 122- 127 days, and the approved accumulated temperature is 2350℃. At the accumulated temperature above 2500℃, the ideal dehydration effect and maturity will be obtained, which is suitable for planting in the first and second accumulated temperature zones of Heilongjiang Province. The seedling stage is robust, the plant height is about 2.8 meters, the ear position is 95 cm, the leaves are raised, the plant type is convergent, the culm is strong and not lodging, the living culm is mature, the drought resistance and stress resistance are good, and it is highly resistant to corn leaf blight, head smut, corn smut and bacterial wilt. The spike is cylindrical, with rows of 18-about 22 rows, with about 45 grains in each row, 100 grains weighing 35g, dentate, orange, bulk density of 75 1g, and horny grains. Under suitable cultivation conditions, the yield can reach more than 1000kg.

In high-yield fields, the average yield of L2 in Gao Long exceeded 30,000 Jin, far exceeding the varieties in the same maturity period, creating a record of high yield of maize in Heilongjiang Province. Commodity grain is horny and hard, and its price is relatively high. Commodity grain is golden in color and suitable for food raw materials, feed and wine-making raw materials. This variety has aroused great enthusiasm from people in the industry and farmers everywhere.

2. Liangyu 99

Examination number: Guo Shenyu 20 12008.

Liangyu 99 is a density-tolerant variety, with the growth period of spring sowing about 135 days, plant height of 270 cm, ear position of 100 cm and compact plant type. The panicle is conical, the panicle length is 400px, the number of rows per panicle is 16 ~ 18, and the grain is yellow and horse-toothed. In terms of quality, 100 grains weigh 36.5g, and the red axis. For planting in plots with medium fertility or above, the suitable density for spring sowing is 4000 ~ 4500 plants/mu, with an average yield of 700 kg per mu, which is suitable for planting in most late-maturing corn areas in Liaoning.

High density: 4500-5000 plants per mu, uniform inside and outside the ear, without hollow stems and protruding tips. High lodging resistance, thick stem, strong wind of level 8. High resistance to bacterial wilt, head smut, rough dwarf disease and dwarf disease

Mosaic virus disease. Rice has good quality and high bulk density. Generally, the yield per mu is 900kg, and the high yield is more than1100kg, which is 15-20% higher than that of Zheng Dan 958.

3. Go to the sea 6702

Examination number: Guo Shenyu 20 1 1009.

Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. Suitable for planting in summer in Shandong, Baoding, Hebei and its south, Henan (except Pingdingshan and Zhoukou), Guanzhong irrigation area in Shaanxi (except Xianyang), northern Anhui, northern Jiangsu, Yuncheng, Shanxi and other places. Pay attention to the prevention and control of stem rot, smut and Curvularia leaf spot, and use it with caution in high-incidence areas.

4. Delin 988

Examination number: Guo Shenyu 20 1 10 10.

Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. It is suitable for summer planting in Shandong, Henan (except Zhengzhou and Zhoukou), Baoding, southern Hebei (except Shijiazhuang), northern Jiangsu and Guanzhong irrigation area in Shaanxi. Pay attention to prevent lodging, and use with caution in areas with high incidence of melanoma.

5. Zhong Dan 909

Examination number: Guo Shenyu 2011011.

Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. It is suitable for planting in summer in Henan, Baoding, Hebei and the south, Shandong (except Binzhou), Guanzhong Irrigation District, Yuncheng, Shanxi, northern Jiangsu and northern Anhui (except Huaibei). Use with caution in areas with high incidence of melanoma.

6. Shan Jun 29

Examination number: Guo Shenyu 20 1 10 12.

Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. It is suitable for planting in summer in Henan (except Nanyang and Zhoukou), Baoding and its south (except Shijiazhuang), Shandong (except Zaozhuang), Xianyang, Shanxi, Yuncheng in northern Jiangsu and Fuyang, Anhui. Pay attention to prevent lodging, and use with caution in areas with high incidence of melanoma.