Why do you need to turn on the lights?

Because artificial pollination is needed for the cultivation of dragon fruit, and the flowering period of dragon fruit is very short, it usually begins to bloom an hour and a half before sunset, and the Corolla begins to close gradually after dawn, so workers have to pollinate dragon fruit artificially with the help of light before dawn to ensure that dragon fruit is hung up and increase its yield.

The flowers of dragon fruit begin to bloom 1.5 hours before sunset, fully open at sunset, the Corolla will gradually close after dawn, and wither after sunrise. In order to ensure the yield of dragon fruit, during the flowering period of dragon fruit, workers have to pollinate dragon fruit artificially with the help of lights at night.

Most workers will start pollination after dinner, artificial pollination of dragon fruit, must be carried out by cross-pollination, the male pollen needs to be collected with a brush and then pollinated on the style of magnetic flowers.

Propagation methods of dragon fruit

I. Cuttage

It is best to choose in the spring, select the better growing stem nodes as cuttings, cut them into small segments of 375px, wait for the wound to dry, cut them into the sand bed or cut them directly under the support frame and the side of the cement column.

After cutting to maintain the soil dare to bet, do not need watering, cutting after 10 days before watering, generally 15-30 days can take root, when the root grows to 3-100px and then transplanted to the seedbed.

2. Grafting

The rootstock with good growth condition, full stem and full flesh and no diseases and insect pests was selected as rootstock, and the dragon fruit was grafted in sunny days.

Use the dragon fruit stem to cut out of the plane, then insert the scion into the cambium, and then tie them firmly with cotton thread. Generally, when the temperature is 28-30 ℃, it only takes 4-5 days for the wound to form a large number of calli. When the color of the scion is similar to that of the rootstock, it shows that the vascular bundles of the two have healed and grafted successfully, and then they can be cultivated all the way to the pseudo-planting seedbed.

1. Selection of rootstock and scion

The suitable rootstock can be selected according to the pulp type, the white meat type dragon fruit can be selected as the rootstock for the red meat type dragon fruit, and the wild triangular pillar can be chosen as the rootstock for the yellow meat type dragon fruit. Triangular columns had better choose 1-2-year-old ones, cut them from the stem node and cut them in the loose soil with heavy sand, and set up a shade shed above. After pouring water, they can be used as rootstocks, which can be cut alive in about 15 days. After that, grafting can be carried out, and the scion had better choose the branches with good growth and development in the same year.

2. Grafting time

Grafting can be carried out at any time except when the temperature is colder in winter. The cold and wet time in winter and spring is relatively long, the wound during grafting is difficult to heal, and the wound is easy to expand, affecting the plant, so it is best to graft the dragon fruit at 3-10 to provide sufficient healing time for the plant to promote the hanging of dragon fruit.

3. Drug treatment before grafting

The grafted knife should be disinfected with alcohol or liquor to avoid bacterial infection. if conditions permit, sodium naphthalene acetate solution can be used to dip the base of the scion, which can promote callus formation and improve the survival rate of the plant.

4. Grafting method

Flat grafting method: first, select the appropriate height crosscutting knife in the triangular prism of Bawanhua, then cut the three peaks, then take the fairy thorn for disinfection and stab into the vascular bundle in the middle of the rootstock, connect the cut scion to the other end of the thorn, and then connect the scion and the rootstock with thorns, so that the rootstock and the scion are as close as possible, so as to avoid bacterial infection, and finally add a thorn on each side to fix it. Then wrap the base tightly with thin thread.

Wedge method: after taking the knife for disinfection, cut a crack longitudinally at the top of the rootstock, pay attention to that the crack is not too deep, then cut the part of the scion into a duck's beak, immediately insert them into the crack of the rootstock, and then fix them with plastic tape. At this time, you can cover a plastic generation to maintain humidity in the air to promote their survival. Half a month later to observe the growth of grafting, if it is still fresh green, then 6 shows that the grafting survived, after a month can be out of the nursery.