Method for grafting different stock tender branches of pinus sylvestris

Abstract

The invention discloses a method for grafting different stock tender branches of pinus sylvestris. The method comprises the following steps: taking pinus sylvestris as stock, selecting branches of which the terminal buds are full and needle leaves are remained intact as scions, wherein the coarseness of the scions is 2 / 3 of the coarseness of a main branch of the stock even the same coarseness; removing other needle leaves along a growth direction of the needle leaf, obliquely cutting from a position which is about 0.5cm away from the bearing position of the remained needle leaf by blades, enabling the cutting depth to reach the pith of the scion, peeling off a bark along the phloem and xylem on a main one-year-old branch of the stock, aligning the peeled scion joint and the stock cut fromthe left to right, trimming the stock in the next year after grafting success and before treetop germination, and unbundling all the grafted planted after stock trimming completion so as not to avoidnormal thickening growth of the stock. The method disclosed by the invention has the beneficial effects that the breeding ability of the pinus sylvestris is greatly improved, excellent characteristicsof the pinus sylvestris are maintained, the stock breeding cost is reduced, the orchard establishment period is shortened, and ecological benefits of the pinus sylvestris are realized in advance.

Description

technical field [0001] The invention belongs to the technical field of forestry nursery stock breeding and relates to one or more methods for grafting coniferous trees. Background technique [0002] Zhangwu pine (Pinus densiflora Sieb.et Zucc.var.zhangwuensis Zhang, Li etYuan var.nov.) is a research institute of sand fixation and afforestation in Liaoning Province. It was first discovered in Zhanggutai in 1990 and named. Zhangwu pine is a natural hybrid of red pine and Chinese pine. The difference between this variety and the original variety is that the leaves are 13-15cm long (not 5-12cm), straight or slightly twisted, usually with slightly incurved margins, 3-9 on the edge of the resinous canal, drooping cones when young, and 5- 7mm, with wings 2-2.2cm long. Compared with Pinus sylvestris, Zhangwu pine is more fast-growing, drought-resistant, cold-resistant, and salt-alkali-tolerant. In particular, it has no obvious pests and diseases, and is not easy to be infected wit...

AI Technical Summary

Problems solved by technology

At present, grafting is the main method of Zhangwu pine propagation. Its disadvantage is that the survival rate of grafting is low, generally around 60%. The seedling period is long, usually it takes 3 years to form the main stem