Heinong 84 was developed by Soybean Research of Heilongjiang Academy of Agricultural Sciences, so Heinong 51 was the female parent, and Heinong 51 was used as the female parent. Heinong 51 was used as a hybridization {[(黑农41×91R3-301)×(黑农39×9674)]×(黑农The cross F1 of the selected individuals of 33×Grey bark branch)} was backcrossed from the male parent and bred by the method of combining molecular marker-assisted selection and conventional breeding.

2. Validation and intellectual property status:

In 2017, it was approved by Heilongjiang Province and applied for the protection of new plant varieties.

3. Features:

Plant height 95 cm, purple flowers, pointed leaves, gray hairy, sub-limited pod-setting habit, round seeds, yellow seed coat, yellow navel, shiny, 100 seeds weighing 23 grams. The approved protein content was 40.82% and the fat content was 19.58%. In 2017, the average protein content of the 6 cities and counties was 42.50%, and the fat content was 19.50%.

4. Resistance:

Resistance to gray spots, high resistance to viral diseases, and resistance to cyst nematodes during inoculation identification.

5. Suitable area:

In the adapted area, the number of days from emergence to maturity is 118 days, and the active accumulated temperature of ≥10℃ is 2400℃, which is suitable for planting in the second accumulative temperature zone of Heilongjiang Province.

6. Output performance:

The average hectare yield of this variety from 2014 to 2015 was 3135.2 kg, which was an increase of 12.2% compared with the control variety Suinong 28. In 2016, the average yield per hectare in the production test was 2890.8 kg, which was an increase of 13% compared with the control variety Suinong 28. The highest yield in the test was 3846 kg per hectare (Muling 2015).

In 2017, the production demonstration, 12 hectares in Taipingchuan, Suihua, the output was 4200kg/hectare measured by experts, and 8 mu of land in Harbin Veterinary Research Institute, the actual yield per mu was 293kg (4395kg/hectare), with a potential of 300 kg per mu. .