黑蜜 5号是中国农科院郑州果树研究所利用三亲杂交的方法选育出的中晚熟无子西瓜品种 ,全生育期 1 0 0～ 1 1 0天 ,果实发育期33～ 36天。瓜圆球形 ,果形指数 1～ 1 .0 5,果实圆整度好 ,墨绿色果皮上覆有暗宽条带 ,果皮较薄 ,在 1 .2ｃｍ以下 ,平均单瓜重 6 .6ｋｇ左右 ,最大的 Black honey No.5 is a middle-late-maturing seedless watermelon variety bred by the method of cross breeding of parents by Zhengzhou Fruit Tree Research Institute of Chinese Academy of Agricultural Sciences. The whole growth period is from 100 to 110 days and the fruit development period is from 33 to 36 days. Melon round shape, fruiting index 1 ~ 1 .0 5, the fruit roundness is good, Dark green peel covered with dark wide strip, thin peel, in less than 1. 2cm, the average single melon weight about 6. 6kg, biggest