甜瓜、西瓜专用砧木品种——京欣砧3号的选育和推广

Breeding of Interspecific Hybrid Squash Rootstock Jingxinzhen No.3 for Melon and Watermelon

京欣砧3号是用印度南瓜种05-88自交系作母本,中国南瓜系04-36自交系作父本配制而成的远缘南瓜(Cucurbita maxima×Cucurbita moschata)杂交种,主要用于甜瓜和西瓜嫁接栽培。采用京欣砧3号等不同砧木嫁接甜瓜和西瓜试验结果显示:与其他参试葫芦砧木和各类南瓜砧木相比,京欣砧3号发芽率高,出苗整齐,苗壮。与甜瓜、西瓜嫁接亲和性好,共生力强,结合面致密,成活率高。嫁接苗耐低温弱光。抗枯萎病,耐盐碱,叶部病害轻。嫁接后增产效果明显,对果实品质影响小。

Jingxinzhen No. 3 is interspecific hybrid squash rootstock for melon and watermelon. It was developed by using line 05-88 （Cucurbita maxima） as female parent and line 04-36 （Cucurbita moschota） male parent. Compared with check varieties ,Jingxinzhen No. 3 has higher germination, uniform seedling, strong plant vigor. It has high grafting affinity with watermelon and melon scion. The grafted plants are tolerant to low temperature and weak light, resistant to Fusarium wilt, and tolerant to salinity. The grafted plant produces higher yield and good quality fruit.