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利用嫁接栽培庆发八号西瓜,不仅能预防枯萎病的发生,而且较不嫁接增产30％,在重茬地增产效果更加明显。 一、砧木品种选择 选择中国农科院郑州果树所郑高飞研究员选育的超丰F_1砧木品种。其嫁接成活率高,防病效果好,增产效果明显,且对果实品质无不良影响。 二、嫁接方法与播种期 采用插接法和劈接法嫁接,砧木苗要大些,西瓜苗小些,先播砧木种子,砧木种子应破壳催芽,砧木种子播种5～7天出土时,再播经催芽的庆发八号西瓜种,待砧木种子第1片真叶出现约1～3厘米,庆发八号西瓜叶子展开时是嫁接的最佳时期。采用靠接法嫁接,砧木苗子可适当小些,应与接穗的大小比较接近,以便操作。应先播庆发八号西瓜种,西瓜播种后5～7天或西瓜
The use of grafting to cultivate Qingfa No.8 watermelon can not only prevent the occurrence of blight but also increase the yield by 30% compared with no grafting. First, the choice of rootstock varieties Select Zhengzhou Chinese Academy of Agricultural Sciences Zheng Gaofei researcher breeding Feng F_1 rootstock varieties. The grafting survival rate is high, disease prevention effect is good, yield increase effect is obvious, and the fruit quality without adverse effects. Second, the grafting method and sowing the use of plug-in method and split access grafting, rootstock seedling larger, smaller watermelon seed, the first sowing seed stock, rootstock seed should be broken shell germination, rootstock seed sowing 5-7 days unearthed, Then sow the germination of the No. 8 watermelon Qingfa, until the rootstock seed 1 leaves appear about 1 to 3 cm, Qingfa No. 8 watermelon leaves when it is the best time for grafting. Grafting by docking method, rootstock seedlings may be appropriate smaller, and the size of the scion should be closer to the operation. Should be broadcast on the 8th anniversary of watermelon seeds, watermelon 5 to 7 days after sowing or watermelon