Water culture seedling method for slash pine big tree needle fascicles

A technology of conifer bundles and slash pine, which is applied in the field of vegetative propagation of pines, can solve the problems of growth retardation and low survival rate, and achieve the effects of ensuring integrity, improving reproduction coefficient, and overcoming the phenomenon of partial crown or base germination

Active Publication Date: 2015-12-16
HUBEI FORESTRY SCI INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

) but the above two asexual propagation methods are only applicable to young mother plants, and it is difficult to reproduce the young shoots or needle leaf bundles collected from pine trees over 8 years old into seedlings by the above methods, even if a small amount of rooted seedlings are also stunted and have a very low survival rate
It can be seen that the conventional method disclosed in the prior art is not suitable for the asexual reproduction of large needle leaf bundles of non-young mother plants of slash pine, and the prior art is rarely specific for non-young pine class mother plants to carry out fast and efficient , Reports on large-scale asexual reproduction technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for water seedling cultivation of large slash pine needle bundles, said method comprising the steps of:

[0042] (1) In the experimental forest of 8-year-old slash pine clones, select one excellent individual plant of two excellent clones 82-15 and 86-8, and put a sign on it; (2) Before the sap flow in early March, in the Select 2 to 3 side branches in the middle and lower part of the canopy that grow vigorously and have better light conditions in each excellent individual plant for pruning: first remove the other side branches except the main shoots of the first-level side branches or the second-level thick side branches from the blind branches of the previous autumn shoots. The branches are cut off, and the weak or poorly growing side branches are all cut off from the base of the growth, and then cut off at the spring-growing branches of the previous year on the main shoot, leaving only the 3 to 5 cm long base of the main shoot with conifer bundles, ensuring ...

Embodiment 2

[0044] A method for water seedling cultivation of large slash pine needle bundles, said method comprising the steps of:

[0045] (1) Through the measurement of the growth of the 9-year-old slash pine high-yielding resin family test stand, three excellent families G354, G367, and G73 were selected, and one excellent individual plant was selected respectively, and marked; (2) at the end of February, the sap Before the flow, select 2 to 3 side branches in the middle and lower part of the canopy for each high-quality individual plant that grow vigorously and have better light conditions for pruning. Cut off the blind branches of the autumn shoots in one year, and cut off the sick and weak branches at the same time, leaving only the 3-5cm long main shoot base with coniferous bundles, and ensuring that the branches grow robustly; (3) timely in April to May Erase weak or excessive buds to ensure that 2 to 3 strong buds grow quickly into new shoots; (4) When the buds grow to semi-lign...

Embodiment 3

[0047] A method for water seedling cultivation of large slash pine needle bundles, said method comprising the steps of:

[0048] (1) Select 3 individual plants in the 10-year-old American native slash pine provenance test forest; (2) Before the sap flows in mid-February, select 2-3 trees in the middle and lower parts of each excellent individual plant to grow Prune the side branches that are strong and have better light conditions. Cut off the main shoots of the first-level side branches and the second-level thick side branches from the spring branches of the previous year, and cut off the other side branches from the blind branches of the autumn shoots of the previous year, leaving only 3-5cm long branches. At the base of the main shoot with coniferous bundles, cut off diseased and weak branches at the same time; (3) Wipe out weak or excessive buds in time from April to May to ensure that 2 to 3 strong buds grow into new shoots quickly; (4) When The sprouts grow to semi-ligni...

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Abstract

The invention relates to a water culture seedling method for slash pine big tree needle fascicles, and belongs to the technical field of conifer asexual propagation. The invention creatively provides the water culture seedling method which adopts an 8-10-year-old slash pine big tree with obvious growth vigor as a mother plant, and under the condition that the normal growth of the slash pine big tree is kept, only a small amount of lateral branches are subjected to rejuvenation and needle fascicles are utilized to quickly and efficiently propagate a clone. According to the method provided by the invention, the dormant state of the needle fascicles is broken through by virtue of a retired water culture manner, essential nutrients are provided to promote cell differentiation so as to gradually form calluses, primordial roots and adventitious roots, and promote germination and growth of buds, and then needle-shaped primary leaves of which the shapes are completely consistent with those of seedlings are germinated and develop into new nursery stocks, so that the method provided by the invention is not restricted by the age of the slash pine mother plant. Moreover, according to the method provided by the invention, only weak pruning of a small amount of lateral branches of a good mother plant is needed, and the completeness of the mother plant and the stability of a genetic testing system are ensured, so that the method can be widely popularized and applied to production easily.

Description

technical field [0001] The invention relates to the technical field of pine asexual propagation, in particular, the invention relates to a method for water-cultivating seedlings of large needle-leaf bundles of slash pine trees. Background technique [0002] Slash pine has been introduced in my country for more than 60 years. It has strong adaptability, strong resistance to diseases and insect pests, vigorous growth, straight and round trunk, high resin yield and good quality. It is a good papermaking and rosin raw material forest. , has led to the rapid development of wood pulp and papermaking, wood processing and rosin series product processing industrialization, and has developed into the main afforestation tree species and important industrial raw material forest tree species in the low mountain and hilly areas of southern my country. Although most coniferous species are difficult to reproduce asexually, with the continuous improvement of cloning technology, vegetative pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00C05G1/00
CPCA01G31/00C05G1/00C05D9/02C05F11/10C05C1/00
Inventor 许业洲杜超群黄国伟陈华超刘星
Owner HUBEI FORESTRY SCI INST
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