Black trial jade 20200015

Crop Name: Corn

Variety name: Binyu No. 15

Applicant: Binfeng Corn Breeding Scientific Research Institute, Bin County

Breeder: Binfeng Corn Breeding Scientific Research Institute, Bin County

Variety source: 8L453 as the female parent and Binzi 976 as the male parent, selected by cross-breeding.

Characteristics: Common corn varieties. The number of days from emergence to maturity in the adapted area is about 122 days, and the active accumulated temperature is about 2500°C ≥ 10°C. The first sheath of this species is purple, the leaves are green, and the stems are purple. The height of the plant is 279 cm, the height of the ear is 105 cm, and the adult plant has 16 leaves. The ear is cone-shaped, the cob is red, the ear length is 19.0 cm, the ear thickness is 5.0 cm, and the number of ear rows is 16 to 20. The grains are dent-shaped and yellow. The hundred-grain weight is 34.0 grams. One-year quality analysis results: test weight 771～780 g/l, crude starch 72.63%～73.59%, crude protein 10.86%～10.96%, crude fat 4.15%～4.66%. Two-year disease resistance inoculation identification results: moderate to susceptible (5+～7) large spot disease, head smut incidence rate of 17.0%～22.4%, and stalk rot incidence rate of 0.0%～13.6%.

Yield performance: From 2018 to 2019, the average hectare yield of the regional test was 1,1442.5 kg, which was an increase of 8.9% compared with the control variety Yinongyu 10; the average hectare yield of the production test in 2019 was 9706.4 kg, which was 9.6% higher than the control variety Yinongyu 10.

Cultivation technical points: Sow seeds in the adaptation area around April 30, select medium and above fertility plots, adopt direct seeding cultivation method, and protect about 68,000 seedlings per hectare. Apply about 10 tons of base fertilizer per hectare, apply 225 kg of diammonium phosphate, 105 kg of potassium sulfate, and apply about 230 kg of urea per hectare at the stage of booting to booting. Seedlings grow fast, shovel management in time, pay attention to pest control, and harvest in time. For plots with poor fertilizer and water conditions, the planting density should not be too high.

Opinions: This variety meets the certification standards of Heilongjiang Province and passed the certification. It is suitable for planting in the second accumulated temperature zone of Heilongjiang Province ≥ 10 ℃ active accumulated temperature above 2650 ℃.