金红 4号是以瓣化型胡萝卜雄性不育系 10 4 2 1为母本 ,以新黑田五寸自交系 30 30为父本配制的一代杂种。肉质根圆柱状 ,橙色 ,根纵径 17.5～ 18.5cm ,横径 5 .0～ 5 .5cm ,单根质量 2 6 0～ 2 70 g ,适宜鲜食和加工。生育期 12 0d(天 )左右 ,一般产量 4 5 0 0～ 5 5 0 0kg·(6 6 7m2 ) -1,抗黑斑病 ,适宜北方地区夏播。 Jinhong No.4 was a new generation of hybrids with the male sterile line of petal-type carrot 10 4 2 1 as the female parent and the male parent of the new black-field five-inch inbred line 30 30 as the male parent. Fleshy root cylindrical, orange, root length 17.5 ~ 18.5cm, diameter 5 .0 ~ 5 .5cm, single mass 2600 ~ 270g, suitable for fresh and processing. The growth period is 12 days (days), and the general yield is 4500 ~ 5500kg · (6 6 7m2) -1, which is resistant to black spot disease and suitable for summer sowing in northern China.