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西瓜嫁接育苗是抗病增产的技术措施之一,近年来还逐步推广。在重茬地上,直接播种西瓜易染西瓜枯萎病。此病是一种严重的土传病害,常造成大量的减产。在北方旱地,倒茬期要求8～10年,这极大限制了广大瓜农扩大种植的积极性。由于西瓜枯萎病菌属专一寄主,应用抗病砧木进行砧接育苗可有效地防治西瓜枯萎病。同时嫁接苗长势健壮、吸肥水能力强,故能达到增产的效果。特别是三倍体无籽西瓜,其效果更明显。由于无籽西瓜种子不充实,直接定植田间生长缓慢,嫁接后可克服这一弱点,为增产增收打下基础。
Watermelon grafted seedling is one of the technical measures to increase disease resistance, but also gradually promoted in recent years. In the recuperation of the ground, the direct sowing of watermelon easily infected wilt disease. The disease is a serious soil-borne disease, often resulting in a large number of production cuts. In the northern drylands, the requirements of down-stubble 8 to 10 years, which greatly restricted the majority of melon farmers to expand their enthusiasm. Watermelon fusarium wilt as a single host, the application of disease-resistant rootstocks anvil-seedlings can effectively prevent and control watermelon blight. Grafting seedlings grow strong at the same time, strong ability to absorb fertilizer, it can achieve the effect of increasing production. In particular, triploid seedless watermelon, the effect is more obvious. Seedless watermelon seeds are not full, direct planting slow growth in the field, after grafting to overcome this weakness, lay the foundation for the increase of production and income.