【Main Characters of Varieties】
The average fertility period of the two-year regional test was 132 days. The top of the first leaf of the seedling is round and the coleoptile anthocyanin shows strong color. The degree of curvature of the leaves is little or very weak, and the angle between the leaves and the stem is small. The color of coleoptiles of the plant is weak, the plant height is high, and the green ear position is extremely high. The pollination period is late to very late, the color of tassel glumes is strong to very strong except for the base, the side branches are weakly bent, and the angle with the main axis is small. The main shaft length above the low side branch of the tassel is medium to long, and the high side branch is above. The length of the main axis is short to the middle, the length of the side branches is short to the middle, and the number of first-order collaterals, the color of anther anthocyanin is strong, the color of filigree anthocyanin is strong, the zigzag degree of the plant stem is weak, and the ear spike is short. Cone to tube-shaped ears, the grains are medium-yellow intermediate, and the color of cob glume anthocyanins is little or very weak. The average number of ear rows is 16.2 rows. Quality analysis results: bulk density 785g/L, crude protein (dry basis) 10.4%, crude fat (dry basis) 6.17%, crude starch (dry basis) 69%, lysine 0.28%.
【Adaptability】
Participated in the 2017-2018 Yunnan Province Gaokang Corn Consortium Variety Test. In 2017, the average yield of the regional test was 761.5 kg per mu, which was an increase of 13.2% compared with the control Haihe No. 2, which was a very significant increase. The trial was continued in 2018, and the average yield per mu was 778.2 kg, an increase of 15.3% compared to the control Haihe No. 2, which was a very significant increase in production. The average yield per mu in the two-year regional trials was 769.9 kg, an increase of 14.3% over the control. The average yield per mu in the production test in 2018 was 734.3 kg, an increase of 21.7% compared with the control, and the rate of increase in production was 100%. In 2017, the sum of lodging and inversion rates was 2.7%, and the percentage of test points where the sum of lodging and inversion rates was ≥10.0% was 9.1%. In 2018, the sum of lodging and inversion rates was 1%, and the percentage of test points where the sum of lodging and inversion rates was greater than or equal to 10.0% was 0. Disease resistance identification results: resistance to gray spot disease, high resistance to large leaf spot, resistance to rust, susceptible sheath blight, and high resistance to ear rot.
【Main cultivation measures】
1. Sowing date: Spring sowing is based on the stability of the ground temperature above 10°C. The seedlings can be planted 5-10 days in advance by using plastic trays for seedling transplanting or mulching.
2. Density: about 3200 plants/mu.
3. Base fertilizer: 1000-1500 kilograms of manure per mu or more than 50 kilograms of N.P.K ternary compound fertilizer.
4. Seedling fertilizer: apply when 4-5 leaves are visible, apply 10 kg of urea per mu.
5. Ear fertilizer: apply when 10-12 leaves are visible, and apply 20 kg of urea per mu.
6. Grain fertilizer: depending on the growth situation, supplementary grain fertilizer can be applied during the male and silking period, 5kg urea per mu.
7. Management: Seedlings in the 3-leaf period, fixed seedlings in the 4-5-leaf period. After every fertilization, weeding, weeding, and soil covering are carried out in time, and the corn borer is prevented in the big bell-mouth stage.
[Suitable area for planting]
It is suitable for planting in the corn area of 1000-2000 meters above sea level in Yunnan Province. It is planted in areas with medium and above fertile soils below 1,900 meters above sea level in Guiyang City, Qianxinan Prefecture, Anshun City, Bijie City and Liupanshui City in Guizhou Province.
