·“ Yufeng 303" is another excellent new variety suitable for large-scale promotion and planting after the excellent varieties such as "Lianchuang 808" and "Lianchuang 839" in Beijing Lianchuang Seed Industry Co., Ltd. Because it has the advantages of high yield and stable yield, disease resistance and overturning, fast grain dehydration, suitable for mechanical grain harvesting, etc., it is loved by the majority of farmers, and has been rapidly promoted in a large area in recent years.
·“ Yufeng 303 "has passed the examination and approval of the national East China Region, the Huanghuaihai Region, the Northwest Region, the East China North Early Maturation Region, and has passed the provincial and municipal examinations of Anhui Province, Hubei Province and Shaanxi Province. The approval area is so wide, indicating that the regional adaptability of this variety is very good, and it can adapt to the complex geographical and climatic conditions of different regions, which is a rare and good variety.
·“ Yufeng 303 "high yield is outstanding. In the past years, it has participated in many national and provincial trials, and has shown a large increase in production. Among them, in the national East China North Test, the production test increased the yield by 8.51% compared with the control Yayu silage 26. In the Huanghuai regional trial, the regional trial increased the yield by 7.52% compared with the control Yayuqing No. 8 in two years, and the production trial increased the yield by 8.26% compared with the control. In actual planting, the yield of "Yufeng 303" can reach more than 2000 jin per mu in the spring sowing area and more than 1500 jin in the summer sowing area.
1. Precocious puberty is outstanding. The seedling emergence to harvest period of the middle and late maturing silage maize group in North East China was about 118 days, which was about 4 days earlier than the control Yayu silage 26. The Huanghuaihai summer sown silage maize group emerged to the harvest period of 93 days, which was about 3 days earlier than the control Yayu silage No. 8.
2. Moderate plant height, which is conducive to silage yield and anti-overturning. In North East China, the average plant height is 2.8 m to 2.97 m, and the panicle height is 1.1 m to 1.13 m. In the Huanghuai area, the average plant height is 2.7-2.84 meters, and the panicle height is 1 meter to 1.08 meters.
3. The fruit spikes are uniform and the size is the same. The panicles are cylindrical, with panicle lengths of 17.6-19.0 cm, panicle rows of 14-16 rows, and panicle thickness of 4.9-5.1 cm.
4, red shaft yellow grain, grain semi-purslane type, 100 grain weight 33.9-36.9 grams. The protein content of the whole plant was 8.5%-8.85%, and the starch content was 28.8%-30.85%.
5. Good disease resistance. Inoculation identification in North East China, medium resistance to gray spot disease, stem rot, large spot disease, silk smut disease. Inoculation identification in Huanghuai area, medium resistance to stem rot, small spot disease and southern rust. In the actual planting process in various places, it has also shown better disease resistance. In particular, the resistance to late blight is excellent, prolonging the green time of leaves, prolonging the grain filling time, and increasing grain weight.
6. Strong ability to resist falling. Judging from the large-scale promotion and planting situation in various places, the "Yufeng 303" gas rooting is developed, the ground is firmly grasped, the stability is good, and the ability to resist falling is strong. The stem elasticity is good, and the stem fold rate is low.
7. Mature grain dehydration is fast, suitable for mechanized grain harvesting. Reduce labor intensity and reduce costs.
1. Middle and late maturing area in North China: planting plots with medium fertility or above, sufficient fertilization, and increasing organic fertilizer. Sowing from late April to early May, planting density of 4500-5000 plants per acre. At 1/2 of the milk line, the whole plant is harvested. Pay attention to the prevention and control of large spot disease and silk smut disease.
2. Huanghuaihai summer sowing area: planting plots with medium fertility or above, sufficient fertilization, and increasing organic fertilizer. Sowing is sown from late May to early June, with a planting density of 4500-5000 plants per acre. At 1/2 of the milk line, the whole plant is harvested. Pay attention to the prevention and treatment of powdery mildew. In the year when rust recurs, pay attention to the prevention and control of late rust.
This variety has wide adaptability and can be planted in the relevant areas of Jilin Province, Liaoning Province, Inner Mongolia Autonomous Region, Shanxi Province, Hebei Province, Beijing Municipality and Tianjin Municipality in The North And Northwest Regions of East China and Northwest China. (For details of the specific planting area, please refer to the approval announcement)
This variety can also be planted in the Huanghuai region of Henan Province, Shandong Province, Shaanxi Province, Shanxi Province, Jiangsu Province, Anhui Province and Hubei Province. (For details of the specific planting area, please refer to the approval announcement)