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Grown pinus massoniana stock plant dwarfing pruning method for increasing seed yield

A technique for dwarfing pruning and masson pine, which is applied to the field of dwarfing pruning of adult masson pine plants, can solve the problems of inadequate control of diseases and insect pests, low seed yield of seed gardens, poor effect of artificially assisted pollination, etc. The effect of prolonging the fruiting period and beneficial to safe production

Inactive Publication Date: 2017-02-01
GUANGXI FORESTRY RES INST
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AI Technical Summary

Problems solved by technology

[0003] However, the existing seed orchard management has not carried out dwarfing and pruning. The height of the mother tree in the seed orchard is 13-18 meters, which brings many disadvantages to management, seed collection and production safety. Poor pollination results in low seed yield in seed orchards

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  • Grown pinus massoniana stock plant dwarfing pruning method for increasing seed yield
  • Grown pinus massoniana stock plant dwarfing pruning method for increasing seed yield

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Embodiment 1

[0043] Implementation location: Guangxi state-owned Paiyangshan Forest Farm Qinle branch, masson pine improved seed garden, the seed time is 1999, the age of the tree is 17 years, the average diameter of the mother tree is 20-35 cm, the height of the tree is 13-17 meters, and the planting distance is 6 m x 6 m, 55 clones were configured, and conventional methods were used for seed orchard management. In April 2014, a dwarf pruning test was carried out on some mother plants in the seed garden.

[0044] The growth traits and number of verticills of each clone in the seed orchard were investigated. According to the actual growth of the mother tree in the seed orchard, the height of the reserved trunk of the mother tree was determined, and the height of the trunk was controlled between 0.5-4 meters. Keep more than 3 side branches below the main trunk.

[0045]After determining to remove the trunk height, carry out a round of side branch removal from the top of the crown, and fina...

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Abstract

The invention discloses a grown pinus massoniana stock plant dwarfing pruning method for increasing a seed yield. The grown pinus massoniana stock plant dwarfing pruning method comprises the following steps: intensively controlling the height of a trunk so as to dwarf the trunk of a pinus massoniana stock plant to be less than 4m; and pruning the tree for about two years so as to form an open heart shaped tree structure. Therefore, the tree can be in good ventilation and light permeability, the photosynthesis can be effectively enhanced, the numbers of new treetops and fruiting twigs can be increased, the branching length can be remarkably increased, main branches of the stock plant can be comprehensively renewed, fruiting branches do not move outwards, and convenience can be brought to management such as pest and disease control, artificial pollination and fruit picking. By adopting the grown pinus massoniana stock plant dwarfing pruning method, technical support for dwarfing grown stock plants, forming reasonable crown diameters, increasing the seed yield and prolonging the fruiting years of the stock plants can be provided, the seed orchard management cost and the production cost are effectively lowered, relatively good economic, social and ecological benefits can be made, and an effective method for improving high and stable production of a pinus massoniana seed orchard is provided.

Description

technical field [0001] The invention belongs to the cultivation field of forest tree seed gardens, and in particular relates to a method for dwarfing and pruning an adult pine masson mother plant for improving seed yield. Background technique [0002] Masson pine is the most important fast-growing and high-yield timber species in southern my country. According to statistics, 40% of the forest stock in southern China comes from masson pine. Since the 1960s in my country, the genetic improvement of Pinus masson and the construction of primary seed gardens of Pinus masson have been started. At present, most of the genetic improvement of Pine masson in my country has entered the second-generation breeding stage, and some provinces and regions have entered the third-generation breeding of Pine masson, but the use of improved varieties of Pine masson plantations is not high. unstable. Although my country has successively established high-yield masson pine seed gardens and second-...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G1/00A01G7/06A01G13/00
CPCA01G17/005A01G7/06A01G13/00
Inventor 杨章旗陈虎谭健晖张明慧欧军
Owner GUANGXI FORESTRY RES INST
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