延黑宝石玉米是陕西省延安市农业科学研究所1994年用秘鲁黑玉米与黄玉米自交系杂交选育而成的富硒黑玉米综合种。特征特性延黑宝石玉米生育期130d左右（延安）。株高250cm，稳位高120cm。植株半紧凑。茎秆粗2．54cm。根系发达。全株19叶。叶片窄长，上部叶上举，下部叶平展。果 Yanbian black corn is Yan’an City, Shaanxi Province Institute of Agricultural Sciences in 1994 with the Peruvian black corn and yellow maize inbred lines of hybrid breeding selenium-rich black corn species. Characteristics of black gelatin corn growth period of about 130d (Yan’an). Plant height 250cm, stable height 120cm. Plants are semi-compact Stem coarse 2.54cm. Roots developed. Whole plant 19 leaves. Long narrow leaves, upper leaves on the move, the lower part of the flat leaf. fruit