抗病无籽西瓜新品种郑抗5503的选育

Breeding of a new resistant seedless watermelon variety Zhengkang 5503

郑抗5503是一个抗病无籽西瓜新品种,母本是新诱变的抗病四倍体自选单系2002S1和2002S2的杂交种,父本是自选二倍体单系2002S58。全生育期105 d,果实发育期32 d,单果质量5～6 kg,最大可达8 kg。果实圆形,底色浅绿上覆墨绿齿条,瓜瓤红色,中心可溶性固形物11.0%左右。果皮较硬,较耐贮运,高抗枯萎病。2004-2006年参加了河南省无籽西瓜区域试验和生产试验;2007年通过河南省农作物品种审定委员会审定,审定编号:豫审西瓜2007008。适宜全国栽培无籽西瓜的地区栽培。

Zhengkang 5503 is a new seedless watermelon variety with resistance to disease. The female parent is a F1 hybrid by crossing between new resistant tetraploid inbred line 2002S1 and 2002S2, the male parent is an inbred line 2002S58. The total growing period is about 105 days, and the fruit matures about 32 days after pollination. Average fruit weight is 5-6 kg and large fruit can be up to 8 kg. The fruit is globe shaped with dark green narrow stripes on light green skin. The flesh is red with central soluble solids about 11.0%. The variety is resistant to Fusarium wilt, and the fruit can be long distance shipped because of its tough rind. It can be grown in main seedless watermelon production areas in China.