黄瓜专用砧木新品种威盛1号的选育

A New Cucumber Rootstock F 1 Hybrid — ' Weisheng No.1 '

威盛1号是以自交系S0703为母本,自交系S0704为父本配制而成的中国南瓜(Cucurbita moschataDuch.)黄瓜专用砧木一代杂种。该砧木与黄瓜的嫁接亲和性和共生亲和力都很强,嫁接苗成活率高,高抗黄瓜猝倒病,抗霜霉病和枯萎病。特别是嫁接后可使黄瓜瓜皮表面光亮无蜡粉、瓜条顺直,明显地提高外观品质;同时瓜条中可溶性糖含量有所增加,黄瓜产量比自根苗提高11.49%,比用黑籽南瓜嫁接提高8.32%。适宜我国北方露地和保护地黄瓜嫁接栽培。

'Weisheng No.1'is a new cucumber rootstock F 1 hybrid bred by crossing S0703 as female parent with S0704 as male parent.It has stronger graft compatibility and symbiotic affinity.When grafted with cucumber scion,its seedling has high survival rate.Grafted seedlings are highly resistant to seedling damping-off,resistant to downy mildew and Fusarium wilt.Especially after grafting with cucumber,its fruit has shiny green skin,and the fruit is straight up.All these have obviously improved its external appearance quality.At the same time,the contents of soluble sugar in cucumber fruit is increased.Grafted seedlings can yield 11.49% higher than self-rooted cucumber,and 8.32% higher than grafted with'Heizinangua'.It is suitable to be cultivated in open field in northern China,and protected facility grafted with cucumber.