When will kiwifruit be grafted? What are the grafting methods?

Kiwifruit has rich nutrition and delicious flavor. Many high-quality varieties are obtained by grafting, among which Guichang kiwifruit is bred by grafting of local wild kiwifruit and is known as "king of kings" for its superior quality. So when will kiwifruit be grafted? What are the grafting methods?

When will kiwifruit be grafted?

The best grafting period of kiwifruit is from June to July, and the survival rate is low either too early or too late.

Grafting method of kiwifruit

1. Bud grafting can be carried out from early June to early September. When budding, select strong seedlings as rootstocks, using the "T" word connection method. First, select the full buds on the scion and cut them into shield-shaped buds. Then draw a "T" shape on the selected rootstock 5 cm above the ground, pick the skin off, insert the shield-shaped bud, and finally tie it up with plastic film to reveal the bud. If the bud is still green after a month, it means that the xylem has been connected together and the grafting is successful. At this time, the upper part of the rootstock is cut off and the management of fertilizer and water is strengthened. the new buds can be sprouted in that year, and they can become commercial seedlings the following year.

two。 Root bark grafting: the scion selects the branches on the one-year-old strong and excellent mother plant, and take them along with the grafting. First select the full bud on the scion, cut the top and bottom of the bud horizontally, then cut it vertically on the left and right side, and then peel off the bud according to the "mouth" shape. In the same way, press the "mouth" shape at the root of the rootstock to remove the root bark, stick the scion bud, and tie it with plastic film to expose the bud eye. Finally, the upper part of the rootstock is cut off and planted in the field, and it can become a commercial seedling in the second year.

3. Cutting: select a scion with 2 buds and about the same thickness as the rootstock, cut the upper part of the upper bud flat, and cut the lower part of the lower bud into a wedge. Cut the upper part of the root of the rootstock flat and split, insert the scion at the cambium and plant it tightly in the field with thin film. Because kiwifruit belongs to fleshy root, the root joint is easy to stick, and the survival rate is relatively high.

Management after grafting

After the budding and germinating new leaves are unfolded, cut the anvil above 10 cm at the interface. If the rootstock is cut prematurely, it is easy to produce new strips on the rootstock to affect the development of bud grafting. For those who are grafted later, they can wait until next spring to sprout and cut the rootstock. After budding and sprouting, struts should be set up to avoid breaking.