介绍几个生菜新品种①黑核：属结球生荚类型，１９８６年由亚培尔和大湖１５６杂交选育而成。株型开展，株高２２ｃｍ，株展３８ｃｍ。外叶深绿色，叶形为宽扇形，外叶少，排列紧凑。莲座叶和叶球几乎同步生长，结球快，结球率高，定植后６０天开始收获，叶球重０．５５ｋ... Introduction of several new varieties of lettuce ① black nucleus: a type of node pod, in 1986 by the Aberdeen and the Great Lakes 156 cross breeding. Plant type, plant height 22cm, plant exhibition 38cm. Dark green outer leaves, leaves wide fan-shaped, less outer leaves, compact arrangement. Rosette leaves and leaf almost synchronous growth, knot fast, high rate of ball, 60 days after planting began to harvest, leaf weight 0.55k ...