Detailed Explanation of Key Points and Operation Methods of Cucumber Grafting Technology
Cucumber grafting to cultivate strong seedlings is the key to achieving high yields. Grafting refers to grafting the branch or bud of one plant onto another plant, making it a complete plant. At present, grafting is widely used in cucumber production. It can improve the stress resistance and disease resistance of cucumbers, and can increase yield and efficiency. Let's take a look at the detailed introduction below with the editor.
1. Selection of rootstock and scion
There are many rootstocks suitable for cucumbers, such as the common pumpkin, loofah, bottle gourd, calabash, etc. According to experiments, it is believed that China's black-seed pumpkin and white-seed pumpkin are more suitable. They can tolerate low temperatures, have good compatibility with cucumbers, mature early after grafting, can be marketed earlier, seize the market, and have no adverse effects on cucumbers. For the scion, mainly choose varieties suitable for solar greenhouse cultivation, and should choose excellent varieties with low-temperature tolerance, early maturity, and strong disease resistance.
2. Approach grafting method
Approach grafting is a commonly used grafting method in rural areas. It is simple and easy to learn, and the survival rate is extremely high. When applied, cucumbers should be sown 3-5 days earlier than the grafted rootstock, and rootstocks and scions with similar growth heights should be selected for grafting. The grafting time is when the pumpkin has grown two cotyledons that are flattened and the cucumber has grown its first true leaf. Take out the two kinds of seedlings, remove the true leaves of the pumpkin seedlings, and use a knife to make a diagonal cut 1-1.5 cm below the pumpkin cotyledons, with a depth of half the stem diameter. Then make a diagonal cut on the cucumber plant 1.5-2 cm below the cotyledons, with a depth of three-fifths of the stem diameter. Fit the two cuts together, with the cucumber leaves pressed on top of the pumpkin leaves, and then fix them in place.
3. Oblique insertion grafting method
The oblique insertion grafting method requires a larger rootstock and a smaller scion, so the rootstock pumpkin should be sown first, and then the scion cucumber should be sown later. The suitable grafting time for the rootstock is when the seedling grows to one leaf and one heart, and the true leaf expands 3-5 cm, while the scion should wait until the cucumber seedling cotyledons expand, the cotyledon color turns dark green, and the true leaf has not yet grown. When grafting, remove the true leaves, heart leaves, and growth node of the rootstock, then use a bamboo skewer the same thickness as the scion to insert obliquely into the stem base within 1 cm, so as to damage the epidermis of the hypocotyl as appropriate, and do not pull out the bamboo skewer for the time being. Select a scion with a thickness comparable to the bamboo skewer, make a balanced cut 1 cm below the cotyledons, cut obliquely into two-thirds of the hypocotyl, then make the same cut from the opposite side, cut off the scion, then pull out the bamboo skewer and insert the scion obliquely into the hole.
The above is an introduction to cucumber grafting technology. I hope it can help you. If you want to learn more related knowledge, please follow us.