Method for raising seedlings of Pinus kesiya var.langbianensis by efficient twig cuttage propagation

Abstract

The invention relates to a method for raising seedlings of Pinus kesiya var.langbianensis by efficient twig cuttage propagation, particularly relates to a method for obtaining Pinus kesiya var.langbianensis by low-cost and efficient cuttage, which directly adopts mountain red soil (raw soil) as matrix and belongs to the technical field of cuttage seedling raising. Since mountain red soil (raw soil) has certain permeability, good water retaining capacity and less harmful bacteria, the method directly adopts mountain red soil as matrix for raising seedlings of Pinus kesiya var.langbianensis by twig cuttage, so as to increase the rooting rate and survival rate of the seedlings of Pinus kesiya var.langbianensis obtained by twig cuttage. The invention relates to a low-cost asexual propagation technology for Pinus kesiya var.langbianensis by twig cuttage. By use of the method provided by the method, the propagation coefficient is high, the seedling raising is not affected by seed size, the raised seedlings have relatively stable traits, the individual plant in a cutting orchard can provide 50-70 coppice shoots, and the ear length is 10 cm. The method has wide prospect of industrialization. The capacity of supplying Pinus kesiya var.langbianensis seedlings is greatly improved by virtue of the generalization and application of the method, and great economic, social and ecological benefits are generated.

Description

technical field [0001] The invention relates to a high-efficiency cuttage expansion and breeding method for Simao pine twigs, in particular to a method for directly using mountain red soil (raw soil) as a substrate to obtain Simao pine with low-cost and high-efficiency cutting, which belongs to the technical field of cutting seedling cultivation. Background technique [0002] Simao pine (Pinus kesiya var. langbianensis) is a unique fast-growing timber and resin-producing species in Yunnan Province. Simao pine grows fast, has a short rotation period, good material, high resin production, strong ecological adaptability, and high resin production. Pioneer tree species and wood-resin tree species for afforestation in subtropical mountains have extremely important economic value and ecological significance. Simao pine is the tree species with the largest forest area in Pu'er forest area, with an area of ​​982,000 hm 2 , the volume of standing trees is 86.375 million m 3 , occup...

AI Technical Summary

Problems solved by technology

At present, Simao pine is still mainly reproduced in a sexual way, and the offspring are prone to separation of traits when propagated by seeds, and the offspring cannot fully inherit the excellent traits of the parents, but asexual reproduction can overcome these shortcomings of sexual reproduction and maintain the excellent quality of the female parent. The properties and properties of the products are consistent, and the forests are neat and tidy, which is convenient for intensive management

However, according to the current situation, the output of improved varieties of Simao pine is less than 100kg per year, and the improved varieties are limited, especially the high-yield improved varieties cannot meet the needs of afforestation at all.

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