What are the key points of cucumber grafting technology?

Cucumber is a common vegetable, it tastes very refreshing, whether it is eaten raw or cold. Grafting technology is often used to improve the yield of cucumber in the process of planting. Let's take a look at the key points of cucumber grafting technology.

What are the key points of cucumber grafting technology?

1. Tool materials

Small blade, bamboo stick, grafting clip, seedling shovel, operating table, wax paper strip, adhesive tape, plastic film and so on.

2. Leaning connection method

First sow cucumbers by grafting, then sow pumpkin seeds for 3-4 days. The standard period of grafting: the suitable period for grafting is when the first true leaf of melon seedling is half-unfolded or fully unfolded.

When grafting, remove the true leaves of pumpkin (including heart leaves) in the upper part of its Hypocotyl oblique cut about 0.5, deep as the stem thick 1/2cm, and then use a blade in the cucumber seedling Hypocotyl to make a downward oblique cut of about 0.5, and then accurately join the rootstock and scion cut, wrapped with wax paper or fixed with grafting clip, planted in a plastic bowl or seedling bed, grafting should be shaded, increase the temperature. In about two weeks, when the grafted seedlings are fully active, cut off the roots of the scions as close to the incision as possible, so that the roots of the two kinds of plants coexist for colonization.

3. Plug-in method

Take the pumpkin seedlings with soil and pick the heart, then take the seedlings in one hand and the bamboo stick in the other at an angle of 45 degrees with the horizontal direction, and insert a hole obliquely from the main vein of the right cotyledon to the other cotyledon. When inserting, the fingers should feel impenetrable, do not pull the bamboo stick after insertion, put it in reserve. Be careful not to crack the Hypocotyl. Cucumber with suitable thickness was selected as scion, and the Hypocotyl was inserted into the hole of rootstock at 1.0-1.5cm under its cotyledons.

4. Management of grafted seedlings

The grafted seedlings should be placed in a small arch shed, and their extremely high height is generally 60-70cm. Appropriate shading, especially in the first three days, use scattered light in the morning and evening, shade at noon to prevent light. About a week later, when the grafted seedlings do not wilt all day, they can be transferred to normal management. After grafting, the temperature should be 25-28 ℃ in daytime, no less than 20 ℃ and 30 ℃ in daytime, and 5-18 ℃ and 13 ℃ at night, and then the temperature could be gradually decreased with the growth of seedlings.

II. Advantages of cucumber grafting

1. Disease resistance

After three years of continuous planting of cucumber, it is very difficult to cure Fusarium wilt and blight. Once Fusarium wilt occurs, there is no way to control it. If the development area is too large, there will be 40% and 80% of dead trees. At this time, people will not be in the mood to manage. Grafting can eradicate Fusarium wilt and blight, because in all melons, pumpkins are immune to Fusarium wilt, and grafted seedlings have strong resistance to cucumber downy mildew. It can be said that it can play a 40% disease resistance.

2. Cold tolerance

Cucumber grafted rootstock Black seed Pumpkin is located in the high mountain area between Yunnan and India. it has strong resistance to low temperature, drought, barren soil and melon Fusarium wilt.

3. High output

The root system of pumpkin is 1.5 meters long vertically and 4 meters horizontally, which is equal to 6 cubic meters. When the main root of cucumber is continuous, the vertical length is 1.2 meters, and the horizontal length is 2 meters, which is equal to 2.4 cubic meters. The difference between the root area of the two is 2.5-3 times. This shows that the grafted seedlings have strong roots and strong ability to absorb water and fertilizer. At normal temperature, the time from flowering to selling melons of grafted seedlings is 5 days, while that of self-rooted seedlings is 7-10 days, such as 206,207,207,Jinyou 35, Jinyou 30, Yu Meiguan and so on. A giant shed reaches more than 40, 000 jin all year round, all referring to grafted seedlings, while self-rooted seedlings reach 28000 jin at most.