Grafting method of super clonal pinus sylvestris var. mongolica Litv

A technology of Pinus sylvestris and clones, which is applied in the field of grafting of excellent clones of Pinus sylvestris, can solve the problems of inhibiting propagation speed, low survival rate of grafting, inability to fully inherit the excellent traits of parents during sowing and reproduction, and achieve improved propagation speed effect

Inactive Publication Date: 2017-12-22
辽宁省固沙造林研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The seeds of GS1 are half-siblings, so the excellent traits of the parents cannot be fully inherited by sowing and reproduction, so asexual reproduction must be selected
At present, GSI adopts the traditional pith cambium grafting method for grafting, that is, the grafting rootstock is the same stock pith cambium grafting grafting method, and the survival rate of grafting is very low, only 10%, which seriously inhibits the expansion. Speed

Method used

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Embodiment

[0034] Present embodiment provides a kind of grafting method of excellent clone of Pinus sylvestris sylvestris, described method comprises the steps:

[0035] S1. Ear selection: the tree species is Pinus sylvestris (GS1), collected from the 40-year-old GS1 parent tree;

[0036] Since there are only 9 fringe-picking mother trees in GS1, the mother trees are older, their growth is reduced, and the length and thickness of the scions are small, resulting in a small number of scions that can be used for grafting. Therefore, in order to promote the yield of high-quality scions, in the spring of one year before grafting, the mother tree needs to be fertilized, and the volume ratio is 8:1 for compound fertilizer and urea, and the fertilization rate is 3kg / strain; Dig a tree tray with a depth of 30cm and a diameter of 2.5m around, and then fertilize; after fertilization, water the mother tree at a rate of 80kg / plant; after 20 days, apply peat once in the original tree tray, 0.7m 3 per...

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Abstract

The invention relates to the technical field of plant planting, and particularly provides a grafting method of super clonal pinus sylvestris var. mongolica Litv. The method comprises the following steps of cutting selection, wherein seeds of trees are from the superior variety GS1 super clonal pinus sylvestris var. mongolica Litv., and 40-year-old GS1 seed trees are adopted; one-year-old branches which are robust, free of diseases and insect pests and have rich terminal buds are collected as the cuttings; selection of stocks, wherein 3-year-old Pinus banksiana Lamb or 3-year-old Pinus densiflora Sieb. et Zucc is selected as the stocks; rejuvenation of the cuttings, wherein a young stock grafting method and the stocks are adopted to conduct rejuvenation to form rejuvenated stocks; grafting, wherein rejuvenated irregular stock double-faced gluing grafting grafts the rejuvenated cuttings onto the stocks. According to the grafting method of super clonal pinus sylvestris var. mongolica Litv, on the basis of the cutting rejuvenation, a GS1 rejuvenated irregular stock double-faced gluing grafting technology is adopted, the grafting survival rate can reach 60%, the expanding propagation speed is obviously increased, and the grafting method of super clonal pinus sylvestris var. mongolica Litv has important practical significance in promoting the goods varieties.

Description

technical field [0001] The invention relates to the technical field of plant planting, in particular to a method for grafting excellent clones of Pinus sylvestris sylvestris. Background technique [0002] Pinus sylvestris is a geographical variety of European scots pine. In my country, it is naturally distributed in western Inner Mongolia and Daxing'an, Heilongjiang. There are sylvestris pine forests in the sandy land at an altitude of 300-900 meters, distributed in an island shape, and also distributed in Xiaoxing'anling. This tree species has strong adaptability, light-loving, cold-resistant, and drought-resistant, and the seedlings are not shade-tolerant. Deep-rooted, not strict on soil, but poor growth in swampy and stagnant water. [0003] The excellent line of Pinus sylvestris (GS1) is an excellent clone of Pinus sylvestris sylvestris that has been screened out through decades of comparative observation of 365 excellent clones in the Zhanggutai Pinus sylvestris seed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/06A01G17/00
CPCA01G17/005A01G2/30
Inventor 孟鹏周凤艳张柏习王曼徐树堂白雪峰
Owner 辽宁省固沙造林研究所
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