First, confirm that seedlings are good varieties
According to the “Management Measures for Oilseed Camellia Afforestation Project in Hunan Province (Trial)â€, fine varieties of Camellia oleifera refers to fine varieties, excellent clones, and excellent pedigrees that have been examined and approved by national or provincial tree species review committees.
Second, confirm the legal status of seedlings
Regular tea seedlings and strong seedlings are legal ID cards with "four cards and one sign." The "Planting Seedlings Production Permit" is issued by the provincial forest seedlings management station; the "Planting Seedlings Management Permit" is issued by the provincial forest seedlings management station; "Quality Seedlings Quality Certification", by the provincial forest seedlings management station The authorized forestry seedlings are distributed by the competent forestry administration; the quarantine certificates for forestry and fine plant species are issued by the competent forestry authorities at the locality of the seedlings authorized by the provincial forest plant quarantine inspection station; and the “seed (seedlings) label†is used to graft the cuttings. The labels are issued by the tea-leaf scion nurses approved by the provincial forest seedlings management station; the labels of the grafted seedlings are issued by the tea seedling nursery nursery approved by the provincial forest seedling management station.
Third, confirm that the scion is a good seed
Currently widely promoted is the grafting technique of oil tea bud seedlings. The key to this technology is whether its scion is a good seed. Some unscrupulous nursery stock traders used non-seed oilseed tea bars to graft and propagate tea seedlings. Most of the purchasers were in this respect.
Fourth, to buy qualified seedlings
The “Management Measures for Oilseed Camellia Afforestation Project in Hunan Province (Trial)†stipulates that: Afforestation of Camellia oleifera must use qualified seedlings of grades I and II and promote container afforestation.
Grade I qualified seedlings grafted seedlings: full head buds, seedlings without pests and diseases; grafting interface intact, no rootstock buds. Annual seedlings, seedling age 0 (0.5) -0.5 [0 represents the age of seedlings planted after budding; (0.5) represents the age of the bud anvil; 0.5 represents the seedling age of transplanted seedlings grafted seedlings, similar below]; Ground diameter 0.25 cm; seedling height 11 cm; root length 15 cm. Two-year-old seedlings, seedling age 0 (0.5)-1.5; ground diameter 0.40 cm; seedling height 40 cm; root length 20 cm.
Grade II qualified seedlings grafted seedlings: full head buds, seedlings without pests and diseases; marry the interface is complete, no rootstock buds. Annual seedlings, seedling age 0 (0.5)-0.5; ground diameter 0.2 cm; seedling height 7 cm; root length 12 cm. Two-year-old seedlings, seedling age 0 (0.5) -1.5; diameter 0.3 cm; seedling height 30 cm; root length 15 cm;
Seedlings of seedlings grafted with sprouts of seedlings: seedlings aged 0.2-0.5-0.3 or 0.2-0.8; ground diameter 0.2 cm; seedling height 10 cm; root length 15 cm; lateral roots larger than 5 cm long should have 18 roots; no quarantine Subjects, normal color, no less than 3 growth points, full top buds, no mechanical damage, container intact. The root ball is intact, and the lateral roots are well-developed and do not clump.
V. Identification of true and false tea bud seedlings grafted seedlings
The grafted seedlings of Camellia oleifera grafts must be seedlings, and they must be seedlings. The grafted seedlings must be singly grafted to the surface and be false seedlings. The grafted grafts should not live, and the branches and buds that grow under the grafting marks or marks are false seedlings. There are more than 2 lateral branches or buds in the grafting joints of the annual Camellia oleifera seedlings, and the seedling stems are slender and upright. The size of the leaves, veins, leaf teeth, and leaves are the branches, leaves and buds emerging from the live cuttings. There are significant differences, for the half-pseudo-seedlings that are not clean and mixed, also known as sprouting seedlings; 1 year old oil tea grafted seedlings grafted on the interface mark out of 2 branches or buds, are the grafting buds of grafted living scions; The thick and thick spores that grow out have branches and buds under an incomplete incision and the leaves are tightly connected. The spores or sprigs grow at an angle less than the angle of the incomplete incision leaf and are seedling scion seedlings.
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