Seedlings come from the road The seedlings on the market are very broad, and we must purchase the quality seedlings cultivated by regular nursery stock production and research institutes. The seedlings cultivated by these units are of high purity, and the source of the seedlings or the scion source for the seedlings distributed by individuals should be clearly identified and purchased.
It is very important that the root system is intact and afforested. High-quality seedlings have a well-developed root system with multiple lateral roots and even distribution. After transplanting, they can form a large number of new roots, absorb more nutrients from water, and easily survive seedlings and grow faster. The inferior seedlings have less lateral roots, uneven distribution, and sometimes the root system is severely damaged by mechanical or tumor-like bodies in the lateral roots. Do not buy inferior seedlings with little or no lateral roots.
The sprouts of the buds on the robust seedling stems of the axillary buds must be large and full, well developed and fully differentiated. The buds are thick, the bud axis is long, and the angle of the new shoot is large. The large and full-filled seedlings of the buds have accumulated more substances in the body, which plays an important role in the initial germination and growth after planting, and can ensure the timely delivery of the shoots after the establishment of the stems.
The seedlings healed well. Some of the seedlings were grafted seedlings on the surface. In fact, they only cut the tree's cortex with a knife ring, and the wounds healed much like grafted seedlings. When using seedlings, no matter which method is used for grafting, the scion of the scion and rootstock should be carefully observed. If the interface heals tightly, it means grafting is alive, otherwise it is difficult to survive after planting. If the degree of healing is not good, other conditions are not qualified to buy.
Seedling height, thick stems should be thick, well-proportioned, full-thick, dark and light skin, large leaves, uniform spacing between the nodes, spring shoots longer than the autumn shoots. At 10 cm of the grafted interface, the diameter of the stem should be 0.8 to 1 cm, and the grafted interface should heal by more than two-thirds. Stem height should be about 90 to 100 cm, but it should not be too thick. Plants stand erect without bending, branches distributed equally, stems green, no mechanical damage. Seedlings withered, withered, or withered stems and roots showed signs of dryness, indicating that nursery stocks had a long period of time in the nursery and the seedlings lost too much water and could not be purchased.
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