How often does grapefruit start grafting, and when and how to graft pomelo trees?

The pomelo tree is grafted in spring, summer and autumn, but the grafting method is different in different seasons. In the middle and early March of spring, the main thing is to cut the new branches, and in the summer, the branches are cut off for ventral grafting, and in the autumn of September and October, the new shoots are plucked and grafted into the rootstock for maintenance, so that they can take root.

Grapefruit trees are grafted in spring, summer and autumn.

Grapefruit is a fruit that many people love to eat, so there are also many people who plant grapefruit trees, generally speaking, pomelo trees are mainly propagated by grafting, spring, summer and autumn are pomelo tree grafting time, which can make it successfully take root and sprout. However, because the method of choosing grafting is different, the suitable season is also different.

In spring, the grapefruit trees are usually cut, and the grafting time at this time is mostly in the middle and early March, when the grapefruit trees are in the early stage of germination or budding. Cut the appropriate branches on the grapefruit tree, then cut small openings in the rootstock, cut the cuttings directly into the rootstock, and then tie them tightly and wait for them to germinate.

In the summer, the pomelo trees are mostly grafted, so the grafting time is in May and June in the summer. Similarly, cuttings are cut on the yuzu tree, the lower part of the cuttings is cut to make them wedge-shaped, and the inverted wedges of the cuttings are also cut on the rootstock and grafted.

The grafting of grapefruit trees in autumn is more about using the bud grafting method, using the new shoots that grow on the branches of the grapefruit tree, cutting them, and the base can have a small amount of woody parts, and then grafting them into the rootstock, tied with plastic film, and then the new shoots will grow on the rootstock, so as to grow new roots and become small seedlings.

After the grapefruit tree is grafted, it can be appropriately toppled with water-soluble fertilizer to supplement nutrients and enhance resistance.

Grapefruit tree grafting method:

Grafting a grapefruit tree requires excellent rootstock and scion. The rootstock of pomelo is better than pomelo rootstock, and the affinity between pomelo rootstock and pomelo tree scion is strong. The scion should be selected from the local excellent varieties, and the grafting of ordinary varieties of grapefruit trees will lose its meaning.

The reason for choosing local varieties is that they are more adaptable to the environment, and the local varieties are naturally more adaptable than those introduced. It is advisable to have a certain degree of cold resistance to the selected grapefruit tree, otherwise it is susceptible to frost damage. Before the spring shoots germinate or at the beginning of germination, the grafted grapefruit tree is usually cut and grafted in the month, and the bud grafting method can be used to propagate the pomelo tree in about a month in the early autumn.

That is to graft or not to graft the tree does not grow well, and the fruit does not grow well.

In the spring, the trees are usually grafted, and the best time to graft is in the early March, when the trees are in the preparation period for germination or germination. You can choose healthy branches on the fruit tree, then make a small cut in the selected rootstock, bundle it tightly with plastic film and wait for germination.

In summer, it is usually carried out for the fruit trees to be grafted, and the best time for grafting at this time is from May to June, and you can also choose healthy branches on the fruit trees, and then cut an inverted wedge shape of cuttings on the selected rootstock, and bundle it tightly with plastic film to wait for germination.

In autumn, it is best to use the bud grafting method to graft fruit trees, and the young shoots that can grow from the new branches of the fruit trees should leave some xylem after cutting, and then cut it onto the rootstock you want to graft, and then you can wait for it to grow into a small seedling.

In winter, the sky is relatively cold, and the climate is not suitable for grafting fruit trees, so you can try it in a warm climate, or you can do it in a greenhouse.

Generally, it is grafted in the spring.

Grafting method: single bud cutting method.

1. Cutting the scion: turn the prismatic side of the scion upwards, and the flat side down against the index finger, and cut it obliquely forward about 1 cm below the bud point, and the bevel is at an angle of 45°.

Then turn the flat side of the scion upward, and peel off the cortex from near the bud point, requiring the cutting surface to be smooth, just right to the cambium layer, and slightly exposing the white part of the xylem. Then turn the scion to the side with the bud point pointing upward. Cut about centimeters above the bud point and place in a pot with clean water.

2. Cutting the rootstock: At a distance of 6 8 cm from the ground, choose the smooth side and cut the upper part of the rootstock obliquely, and the cutting surface is at an angle of 45 °. Then below the inclined plane, make a longitudinal cut along the junction of the cortex and the xylem, and the cut surface is better to see the white xylem rotten mold.

The length of the cut surface depends on the length of the scion.

3. Bud bandaging: Try to choose a bud similar in size and length to the rootstock cutting surface, and insert it into the rootstock cutting surface, so that the base of the bud is close to the bottom of the rootstock incision, and the cambium layer of the rootstock and the scion cutting surface is closely connected.

If the rootstock is thicker than the scion, it should be aligned with the cambium layer on one side, which is easier to relive. Finally, it is wrapped with plastic film tape and sealed with wax.

The grapefruit tree is also known as "Wendan", "Luan" and "Throw". Rutaceae. Evergreen trees. The leaves are large and thick; The wings are large and heart-shaped. The flowers are large, often clustered to produce racemes.

The fruit is large, rounded, oblate, or broadly obovate; It is pale yellow or orange when ripe. The peel is thick and has large oil glands, which are not easy to peel off. The flesh is white or red. Fruity sweet and sour palatable, ripe in late autumn, shelf-stable.

Seed single embryo. Propagation by grafting, beading, etc. It is cultivated in Guangxi, Fujian, Zhejiang, Guangdong, Sichuan, Chongqing and Hunan in China. There are varieties such as "Wendan pomelo" and "Sha Tin pomelo".

The fruit is used for raw food or processing, and the peel can be used to make preserves. Aromatic oils can be extracted from flowers, leaves, and peels.

Grafting is generally carried out from early March to early April, and the scion is about 15-25 cm long autumn or spring shoots; The budding is carried out from August to October, and the "T" shape is mostly used for budding. In early to mid-March of the following year, the buds should be cut 3-5 cm away from the buds, and all the anvils should be cut off when the spring shoots stop growing.

Colonization. Planting density: pomelo grows vigorously, the crown is large, and the grafted tree enters the full fruiting period in 6-7 years, so the planting density should not be too dense.

On slopes above 20 degrees, 45 plants are planted per mu; 40 plants are planted per mu at 10-20 degrees; On the gentle slope below 10 degrees, about 35 plants are planted per mu.

Pollination trees: pomelo has a strong ability to set fruit, but cross-pollination can increase the fruit rate and increase the size of the fruit, so it should be planted in a monophyletic mixed planting.

Planting time: pomelo spring (March) and autumn (November) can be planted, planting in early to mid-March is better, planting should be selected in the evening on cloudy or sunny days, rainy days or when the soil is too wet.