1. Pre-hybridization of tomato fruit.
1. Try not to knock out all the forks of tomatoes at the beginning of the fruit. It is necessary to form a certain area of branches and leaves to promote root development and plant growth, and flower bud differentiation is also good. Because in the early stage, the main purpose is to cultivate strong plants and promote flower bud differentiation. If you cross early, it will seriously limit the growth and development of vegetables in the later stage. For example, if the first ear of the fruit is not long enough, it is easy to have green husk fruit and premature senescence of the plant.
2. Don't rush to wipe the fork in the slow seedling stage and flowering stage of plants. It is necessary to promote aboveground growth and root development. Wipe off the fork in time after the fruit enters the rapid expansion stage.
3. Wait until the lateral branches are ten centimeters long. Leave 2 cm to prevent infection. Don't fight when the sun goes down in the afternoon, and don't fight too early in the morning to prevent wound infection.
Second, tomato hybridization method
1. It is mainly to pinch off all the buds at the top of the trunk when the height difference of the trunk is much, so that it will not grow taller again. Of course, for useless side branches and high enough side branches, the terminal buds should also be pinched off.
2, tomato single and double pruning method. That is, each plant leaves 1-2 heads, and all other branches are broken when they reach 10cm. Early-maturing varieties (except self-capped varieties) can leave 3-4 ears, and middle-late maturing varieties can leave 6- 10 ears as needed. In this way, it will not grow any longer, and the nutrition will be preserved for flowering and fruiting.
3. Tomatoes should be ordered according to variety, planting density, shelf planting, etc. Under the condition of limited varieties and frameless cultivation, when each plant grows to 30cm, 2~3 branches are left, 2 leaves are left in the main branch until the third flower appears, and 2 leaves are left in the back branch of 1 flower.
4. If the scaffold is used to cultivate varieties with unlimited growth, unipolar plastic surgery and bipolar plastic surgery are generally used. Unipolar plastic surgery is to leave only the main branch and remove all the side branches. Bipolar plastic surgery is to leave one main branch and one side branch.