How to identify longan seedlings

Chuliang Longan, with short shoots and internodes, many branches, 1-2 year old twigs on the branches more dense, round and rough shape, 6-8 leaflets, medium size, lanceolate or oblong, The veins on the dorsal part of the leaves are obvious, and the leaves are smooth, but when the fertilizer and water are particularly sufficient, the leaves between the lateral veins of the leaves are slightly raised, green and shiny; 2. The longan, the branches are slightly drooping, the leaflets are 8-10, and the 10 leaves are many. This species can be divided into three lines: a. Dendrobium nobile: dark green leaves, showing a long oval, leaflets thicker, slightly undulating leaf margin, veins yellow and white and particularly obvious, the main pulse convex; b. The crustacean leaflets are yellow and the leaf veins are greenish; c. The crusts of the crustaceans are larger and the leaves are grayish white; 3. The longan of Gushan 2 has medium branching density, the leaves are dark green, and the leaflets are 8-10. Small, long oval, wavy twisted edge. The good longan grafted seedlings must have the following conditions: a. The shape of the seedlings is good, straight, the branches are well-structured, the classification is clear, the scions have 2 - 3 buds, the incision is 25cm - 35cm from the ground, and the stem is not less than 0.7cm b. There are no new lesions in the root bark and bark, the old ones have healed, the total area does not exceed 1.5cm2, and the area of ​​a single injury mouth does not exceed 0.6cm2; c. The degree of healing of grafted grafts, smoothness of healing from top to bottom, no heave, or Tumor-like enlargement, lifting the tie-bar without gargle; d. Whole seedling height ≥ 45cm; e. Stem and main lateral root without pests and diseases, no serious pests and diseases in branches and leaves; f. If it is bagged seedlings, the bag is not required serious damage. The structure of the soil mass is not loose; if it is a soil mass, the soil ball diameter is 13cm-20cm and the height is 15cm-20cm. The soil mass structure is not loose; g. The maternal germplasm quality of grafted rootstock and scion is excellent.

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