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龙87-90028是以嫩江县农家品种黑芸豆为材料,采用系统选择方法育成。该品系中熟,在哈尔滨地区5月中旬播种,8月末收获,从出苗到成熟生育日数90～95天,生育期需要活动积温2000℃左右。茎直立,秆强不倒伏,有限结荚习性,紫花。株高50～55厘米,分枝2～4个,单株荚数16～25个,荚长8～9厘米,单株粒数90～130个,单株粒重20克左右。籽粒黑色椭圆形,百粒重19～22克。
Dragon 87-90028 Nenjiang County is a farmhouse variety of black kidney beans as the material, the system selection method bred. The strain cooked in mid-May in Harbin, sowing, harvesting at the end of August, from emergence to maturity date of 90 to 95 days, the growth period needs activity accumulated temperature of about 2000 ℃. Stems erect, stalk strong non-lodging, limited pod habit, purple flower. Plant height 50 ~ 55 cm, branches 2 to 4, pods per plant number 16 to 25, Pod length 8 to 9 cm, the number of individual plants 90 to 130, weight per plant about 20 grams. Black oval grain, 100 weight 19 to 22 grams.