一、合理选择砧木品种和西瓜品种 目前西瓜嫁接特别是保护地栽培应选用西瓜专用砧木品种超丰F_1。西瓜品种一般应选生长势中等或弱、易坐果的品种。选生长势较强的品种,在开花坐果期应加强管理,提高坐果率。早熟品种可选庆农三号和京欣一号;中熟品种可选庆发八号、庆发牌庆红宝、金钟冠龙、新红宝; First, a reasonable choice rootstock varieties and varieties of watermelon Currently watermelon grafting, especially in protected areas should choose watermelon rootstock varieties super Feng F_1. Watermelon varieties generally should be selected growth potential of moderate or weak, easy to sit fruit varieties. Select a strong growing potential varieties, should be strengthened in flowering and fruit management, improve fruit set rate. Early varieties are optional Qingnong 3 and Jingxin 1; Medium-ripe varieties optional Qingfa 8, Qingfa card red, gold crown Guanlong, new red treasure;