Grafting cucumber how to prune after colonization

To ensure the healthy growth of grafted cucumber seedlings, it's important to manage the rootstock squash effectively. Under high temperature and humidity conditions, the growing point of the rootstock squash may produce new lateral buds, which can compete for nutrients with the grafted cucumber. As soon as these side buds appear, they should be removed promptly to maintain the vigor of the main plant. After planting the grafted seedlings, it's essential to pinch back the stems to encourage the development of fine roots and promote strong growth. Once the plants have established, cover them with mulch. However, avoid covering with plastic film too early, as this can cause the roots to stay in the topsoil layer, making them more vulnerable to freezing during harsh winters. This could lead to plant death. When the grafted cucumber reaches about 15 cm in height and has six true leaves, it's time to start training the vines. Use a nylon rope tied to a wire, and secure the other end to the seedling. Be careful not to damage the plant while doing so, as this will help in managing the vine later on. In greenhouse settings, it's crucial to remove the tendrils early. These tendrils often appear before the female flowers and compete for nutrients, especially those at the top of the plant. In addition, tendrils can make pruning and vine training more difficult, so they should be removed as soon as possible. For side branches, the approach depends on the plant's condition. If the stems are thick and each branch has lateral shoots with female flowers, you can keep 1–2 side branches, leaving 1–2 leaves and one female flower on each. Then, remove the growing tips of the lateral branches. If the stems are thin, it’s better to temporarily remove the side branches and treat the plant as if it were growing naturally. If the side branches don’t have any female flowers, they should be completely removed. When the plant shows signs of excessive vegetative growth—such as topping or fruiting at the top—it’s time to prune. Remove the excess growth at the top and apply "Harvest No. 1" diluted to 800 times to balance the plant’s growth. Continue with normal care once new leaves begin to grow. During the rapid growth phase, check the vines every 2–3 days and remove any unwanted tendrils. Adjust the vines by securing them properly and turning the knots of the nylon rope on the lower part of the plant. Avoid over-spraying at once; instead, distribute the leaves evenly so they don’t block each other. While tying the vines, make sure to strengthen the sturdy ones and slightly weaken the weaker ones. This helps reduce the growth of small fruits and promotes the development of larger, healthier ones. Maintaining uniformity makes future management much easier.

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