Grafting and cultivation of watermelon has the advantages of preventing the occurrence of watermelon wilt disease, promoting growth, and the like.
Prevent blight. Fusarium wilt is one of the major diseases that harm watermelon. Once it is onset, it is difficult to control it. Practice has proved that the use of grafting can effectively prevent the occurrence of blight, shortening the rotation cycle and making continuous cropping possible.
High yield and stable production. Since grafting can effectively prevent the occurrence of the wilt disease and the root system of the rootstocks, and the ability to absorb water and fertilizers, grafting can make the watermelon achieve high yield and stable yield. Practice has shown that watermelon grafting produces 20% to 80% more than control.
Improve the cold resistance of plants and promote early-onset seedlings. Grafting watermelon with gourds and squash increases the cold resistance of seedlings, so that watermelons can grow at lower temperatures. As the root system of rootstock is developed and can adapt to low temperature, it increases the absorption capacity of the grafted seedlings in the early growth period; on the other hand, the cotyledon area of ​​the rootstocks increases the assimilation area of ​​the grafted seedlings, so that the grafted seedlings will grow smoothly once they are alive.
Save fertilizer and water. Grafted seedlings have a strong root system and strong ability to absorb fertilizers and water. Compared with self-rooted seedlings with the same growth potential, grafted seedlings can increase the utilization rate of fertilizer and water, thereby saving fertilizer and water.
Preserve breeding materials and increase propagation coefficient. For precious breeding materials, in order to prevent loss due to accidental factors or pest damage, some of its organs may be grafted for preservation or expansion. In addition, with the asexual seedlings obtained by biotechnology, the grafting technique can also be adopted to overcome the difficulties of root induction by asexual seedlings and increase the vigor of asexual seedlings.
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