Grafting is one of the main methods for breeding seedlings. However, some unscrupulous traders use various means to deceive buyers in grafting seedlings. How do we identify true and false grafted seedlings as purchasers?
One is to distinguish from the appearance. The true grafted seedlings are full and round, and the stomatal, skin color and internode length of the rootstock and the scion are obviously different. For example, after the peach tree grafted seedlings are deciduous in winter, the top seedlings are red and green, and the top buds are large and blunt. The nectar of the arbutus is densely green, the internodes are short, the seedlings are slightly oblique, the branches are few, the tops are not obvious, and the top shoots are green. The false grafted seedlings have many wrinkles on the outer skin, and the upper and lower parts of the interface are the same as the teeth, skin holes, skin color and buds. The buds are thin and long. For example, chestnut seedlings do not fall in winter in Hunan, the dry skin of the seedlings is dark brown, and the top buds are not full.
The second is the difference from the branches. Generally, the mother tree is used for grafting and grafting, and there are many branches and large opening angles. The seedlings are strong because of their vitality and superiority. The new branches are erect and the opening angle is small.
The third is to distinguish from the marriage interface. The grafted seedlings have a grafting interface, and the grafting interface is a seedling. The quality grafted seedlings healed tightly. The grafted seedlings have callus at the interface, and the grafted "V" shaped callus is a true grafted seedling. In addition, the inner tip of the "V" shape protrudes more than the outside, and the color inside and outside is different. The lower end of the "V" character forms an acute angle, and there is no cross-cut phenomenon, and the upper part of the interface is obviously thicker than the lower part. The interface of inferior grafted seedlings is not tight enough and it is difficult to survive after planting. The "V" shaped callus of the fake grafted seedling has the same tip and exterior as the outside. The color inside and outside is the same. The lower end of the "V" shape sometimes has a scissors-like cross line, and the interface is as thick as the upper and lower or thicker.
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