利用质子束诱变技术,选育出早熟二倍体西瓜自交系Q29541(早熟优质)和R87345(酥脆皮韧)等资源,分别以这两个自交系为母本和父本配制成杂种一代西瓜新品种‘唐山3号’。该品种果实发育期29~31d,主蔓第一雌花在8~10节,以后每3~5节出现雌花。果肉酥脆、红色,中心糖12%,边糖9%,单瓜质量6kg以上。在河北、辽宁、天津、安徽、湖北、河南、山东等14个省市示范应用,5年来表现出良好的适应性和市场前景。 Using proton beam mutagenesis, the early diploid inbred lines of watermelon Q29541 (early maturity) and R87345 (crisp skin tough) and other resources were bred, the two inbred lines were maternal and paternal parent A new generation of watermelon ’Tangshan No. 3’. The variety of fruit development period of 29 ~ 31d, the main vine first female flowers in 8 to 10, after every 3 to 5 female flowers occur. Fruit crisp, red, 12% sugar center, sugar 9%, single melon quality 6kg above. In Hebei, Liaoning, Tianjin, Anhui, Hubei, Henan, Shandong and other provinces and municipalities demonstration application, 5 years showed good adaptability and market prospects.