In production, cucumber has the advantage of grafting pumpkin as rootstock. The reason is that the pumpkin has a well-developed root system, strong water-absorption and fertilizer-absorbing ability, resistance to disease and stress, which can effectively promote the growth of cucumber vines, increase the ability of flowering and sitting on melon, and avoid plant premature aging. .
At present, grafting of cucumbers by grafting and priming is the most common method of grafting. For cucumber seedlings, continuous rooting or root dragging will have an impact on cucumbers and even loss of grafting significance. For cucumber top-jointed seedlings, the growth point of the rootstock pumpkin is not completely removed, and even the growth point of the rootstock pumpkin exceeds the growth point of the scion, forming a "vicious competition", which is not conducive to the cultivation of robust cucumber plants.
Therefore, to manage grafted cucumber seedlings, the roots should be cut off in time, and the growing point should be removed in time when the growth point is removed, thereby ensuring the growth of the scion cucumber.
In production, in order to shorten the time for seedlings, cucumbers should be cut off before planting. If you do not take this opportunity, you need to do a good job of cutting off the roots after planting. According to the growing trend of seedlings after planting, generally 5 to 7 days after planting, the growth point begins to grow yellow and long leaves, and the roots begin to drop. Roots can be removed at this time. The root cut should be performed at about 4 o'clock in the sunny day to ease the seedlings after cutting off the roots. When the roots are cut off, the blade can be cut at 1 cm below the cucumber grafting interface and it must be completely removed. In addition, if the root squash on the rootstock has germinating leaves, it should be wiped out, preferably from its base. For cucumber top-jointed seedlings, a more thorough “brushing†work should also be carried out within one week after planting, in order to eliminate the growing point of the pumpkin and ensure the normal growth of the cucumber.
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