西瓜部分品种抗枯萎病特性在F_1代中遗传表现的初步探讨

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西瓜枯萎病在世界各国均有发生,轻则使西瓜减产,重则绝收。致病的尖孢镰刀菌(Fusarium oxyspoyum f.sp.niveum)在土壤中可存活5~6年之久。其化学防治工作尚处于试验研究阶段,目前采用的防治对策多为轮作,在我国人多地少,适合种瓜的地区和土质又有一定限制,且近年来农村经济发展迅速,西瓜面积逐渐扩大,使重茬增多,病害加重,西瓜镰刀菌枯萎病已成为西瓜生产的主要障碍之一。为了获得高产且无药剂污染的西瓜,选育抗病品种已成为当前急需解决的问题。为此必须摸清西瓜抗枯萎病的遗传规律。世界上对西瓜抗枯萎病的遗传规律报道 Watermelon Fusarium wilt in all countries in the world have occurred, ranging from the watermelon cut, while never yield. The pathogenic Fusarium oxyspoyum f. Sp. Niveum can survive in the soil for 5-6 years. The chemical prevention and control work is still in the experimental phase. Currently, most of the control measures adopted are rotation. In our country, there are more people and less land suitable for planting melons and soil quality. In recent years, the rural economy has developed rapidly and the watermelon area has been gradually expanded , So that increased stubble, disease worse, watermelon Fusarium wilt disease has become one of the major obstacles in the production of watermelon. In order to obtain watermelon with high yield and no pesticide pollution, breeding of resistant varieties has become an urgent problem to be solved urgently. To this end we must find out the genetic law of wilt resistance. The world’s watermelon wilt disease genetic rules reported
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