Crown inclination controlling four-season cutting rapid propagation method for alnus formosana

A technology for controlling partial crown of alder in four seasons and alder is applied in the field of plant cultivation, which can solve the problems of long rooting time of cuttings, high partial crown rate of seedlings, and inability to take cuttings in four seasons, so as to solve the problem of easy partial crown and the survival rate of field cuttings. High, fast reproduction effect

Active Publication Date: 2015-12-23
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the above research, the cutting rooting time of alder alder in Taiwan is still too long (up to 15-28 days), and cuttings cannot be cut in four seasons, and the seedlings have a high partial crown rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]In the 10-year-old forest stand, the excellent single alder alder tree with straight trunk shape, tree height, and diameter at breast height exceeding the average tree height and diameter at breast height of the stand were selected for collection; on November 15-17, the fine individual alder alder tree was collected The fruits of the fruit are spread out in a ventilated and shaded place. After the seeds are scattered, they are aired for 1 to 3 days depending on the dryness of the weather. The collected seeds are packed in cloth bags and stored at a low temperature of 4°C for 1 month. When sowing in December, take out the alder alder seeds, wash them with clean water, and swell them, and then sow the swollen seeds in the sowing bed that has been mixed with the sowing substrate according to the mass ratio of raw materials: 80% yellow heart soil and 20% coconut bran; When there are 2 to 3 cm, transplant the alder alder seedlings into containers and cultivate them into seedli...

Embodiment 2

[0032] In the 12-year-old forest stand, the excellent single alder alder tree with straight stem shape, tree height and diameter at breast height exceeding the average tree height and diameter at breast height of the stand was selected for collection; from December 1 to 3, the excellent individual alder alder tree was collected The fruits of the fruit are spread out in a ventilated and shaded place. After the seeds are scattered, air for 1 to 3 days depending on the dryness of the weather. Collect the seeds and put them in cloth bags, and store them at a low temperature of 5°C for 2 months. When sowing in February of the second year, take out the alder alder seeds, wash them with clean water, soak them, and then sow the swollen seeds in a mass ratio of raw materials: remove 20cm of topsoil, 80% of mountain soil, 20% of fine sand, and mix well. The sowing furrow of the substrate; when the seedlings are 2 to 3 cm high, transplant the alder alder seedlings into containers and cult...

Embodiment 3

[0036] In the 13-year-old forest stand, the excellent single alder alder tree with straight trunk shape, tree height and diameter at breast height exceeding the average tree height and diameter at breast height of the stand was selected for collection; on December 15-17, the excellent individual alder alder tree was collected The fruit of the fruit is spread out in a ventilated and shaded place. After the seeds are scattered, air for 1 to 3 days depending on the dryness of the weather. Collect the seeds and put them in cloth bags, and store them at a low temperature of 6°C for 8 months. When sowing in August of the second year, take out the alder alder seeds, wash them with clean water, and swell them, and then sow the swollen seeds in the sowing bed with a mass ratio of raw materials: 50% yellow heart soil and 50% coconut bran; When the seedlings are 2 to 3 cm high, transplant the alder alder seedlings into containers and cultivate them into seedlings; choose half-year-old see...

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Abstract

The invention discloses a crown inclination controlling four-season cutting rapid propagation method for alnus formosana. The method comprises excellent single plant selection, seed collecting, seeding and seedling raising, stock plant cultivation, cutting slip collection, cutting slip cutting and post-cutting management. The method is characterized by comprising: selecting excellent single plants in a forest stand with an age of over 10 years, collecting seeds, sowing the seeds and raising seedlings; selecting excellent and robust super seedlings and transplanting the super seedlings in a container bag for stock plant cultivation according to density of 80-100 seedlings / m2; cutting trunks at the altitude of 10-15 cm from the ground to promote germination; cultivating high quality coppice shoots as cutting slips; after treating the cutting slips, planting the cutting slips in a container cup filled with a substrate to be cultivated; covering the container cup with a fully-closed agricultural film, and directly covering the film with a sunshade net or erecting an overhead sunshade net above the film for moisturizing and shading management. According to the invention, the method adopts four-season cutting, the rooting time is shortened to 7-22 days, the alnus formosana can be discharged out of a garden for forestation in 55 days in summer at the soonest, the propagation coefficient of the stock plants is 20-40 times, the cutting survival rate in autumn and winter is 100%, the cutting survival rate all over the year reaches up to 95%, and the positive crown rate reaches no less than 98%, so that excellent and robust alnus formosana cutting seedlings are obtained in quantity.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and relates to a method for rapid propagation of four-season cuttings of alder alder in Taiwan. Background technique [0002] Taiwan alder is a species of Alnus genus in the Betaceae family, native to Taiwan, China, with a height of more than 20m and a diameter at breast height of 30cm in the place of origin. It is an important pioneer afforestation tree species in Taiwan. It has a wide range of adaptation, and its origin is naturally distributed from low altitude to 3000m above sea level. It likes light, humidity and humidity, is resistant to barrenness, and has a certain ability to withstand drought. Its stem shape is straight, the tree body is tall, and the wood is easy to process and shape. It is a high-quality wood for the production of wooden floors and furniture, and can also be used as a raw material for particleboard and papermaking. Taiwan alder is a non-legume root nodule ni...

Claims

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Application Information

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IPC IPC(8): A01G17/00
CPCA01G17/005
Inventor 曹艳云申文辉彭玉华朱积余郝海坤黄志玲谭长强
Owner GUANGXI FORESTRY RES INST
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