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Sowing propagation method for dawn redwoods

A metasequoia and pre-seeding technology, applied in the fields of application, cultivation, agriculture, etc., can solve the problems of low survival rate of cutting cultivation, discounted survival rate, poor growth state, etc., and achieve improved survival rate of sowing and reproduction, good growth effect, and transplantation fast effect

Inactive Publication Date: 2016-04-06
QINGDAO BAIRUIJI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the utilization value of metasequoia is very high, but at present, the propagation of metasequoia mainly depends on cutting cultivation. Cuttings must be cut from the mother tree first, and the selection of cuttings to be cut and the length of cutting are uncontrollable. The rate is relatively low, even if the metasequoia seedlings survived, the survival rate of transplanting again in the later stage will be greatly reduced, and the growth state is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Seed collection: Pick the cones of the Metasequoia mother tree over 35 years old in mid-October of the year before sowing, and dry the cones until the scales crack and the seeds come out, so as to ensure the germination rate and emergence rate of the picked Metasequoia seeds and survival rate;

[0026] (2) Soil preparation: Sow in February of the sowing year, use acidic sandy soil with a pH value of 4 as the seedling land of 1 hectare, and apply 60 tons of compost to the seedling land 8 days before sowing to improve soil fertility. Make furrows after plowing;

[0027] (3) Seed treatment: soak the seeds with 0.1% potassium permanganate solution before sowing and rinse with water before sowing; in order to promote the softening of the seed coat of metasequoia seeds, increase permeability and imbibition capacity, this embodiment uses 0.1% Potassium permanganate solution soaked seeds for 1 hour, and rinsed with flowing water for 5 minutes before sowing;

[0028] (4) S...

Embodiment 2

[0032] (1) Seed collection: pick the cones of the Metasequoia mother tree over 35 years old in late October of the year before sowing, and dry the cones until the scales crack and the seeds are released to ensure the germination rate and emergence rate of the picked Metasequoia seeds and survival rate;

[0033] (2) Soil preparation: Sow in February of the sowing year, use acidic sandy soil with a pH value of 5 as the seedling land of 1 hectare, and apply 80 tons of manure to the seedling land 9 days before sowing to improve the fertility of the soil. Make furrows after plowing;

[0034] (3) Seed treatment: soak the seeds with 0.1% potassium permanganate solution before sowing and rinse with water before sowing; in order to promote the softening of the seed coat of metasequoia seeds, increase permeability and imbibition capacity, this embodiment uses 0.1% Potassium permanganate solution soaked the seeds for 1.3 hours, rinsed with flowing water for 5 minutes and sowed;

[0035...

Embodiment 3

[0039] (1) Seed collection: pick the cones of the Metasequoia mother tree over 35 years old in late October of the year before sowing, and dry the cones until the scales crack and the seeds are released to ensure the germination rate and emergence rate of the picked Metasequoia seeds and survival rate;

[0040] (2) Soil preparation: Sow in February of the sowing year, use acidic sandy soil with a pH value of 5.5 as the seedling land of 1 hectare, and apply 70 tons of compost and manure mixture to the seedling land 9 days before sowing to improve The fertility of the soil, plowed and harrowed to make a bed;

[0041] (3) Seed treatment: Soak the seeds in water at 28°C for 10 hours before sowing, remove and dry in the shade, and then sow to decompose inhibitors such as abscisic acid and acid compounds contained in metasequoia seeds, improve enzyme activity, and transform complex compounds As a soluble substance, it can promote the development of embryos and increase the germinat...

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Abstract

The invention discloses a sowing propagation method for dawn redwoods. The method comprises following steps: (1) seed collecting; (2) soil preparation; (3) seed processing; (4) sowing; and (5) seedling management. In the step (1), cones of dawn redwood mother trees are collected in the year before sowing. In the step (2), sowing is performed in February in the sowing year; acidic sandy loam with pH being 4-6 is employed as the breeding field; and beds are made after the breeding field is ploughed and raked. In the step (3), seeds are soaked in 0.1% potassium permanganate solution or in the water at 28-32 DEG C before sowing. In the step (4), ditches are made in the beds and then drill sowing is performed. In the step (5), shade houses are erected on the beds after the seeds sprout. By employing the method, the propagation quantity and survival rate of dawn redwoods can be effectively increased and improved, dawn redwood seedlings can be outplanted and transplanted in a short period, and the transplanted seedlings grow well.

Description

technical field [0001] The invention relates to a method for sowing and propagating trees, in particular to a method for sowing and propagating metasequoia, and belongs to the technical field of agricultural tree cultivation. Background technique [0002] Metasequoia is a rare relict plant in the world. It is known as the living fossil of the plant kingdom. It is a large deciduous tree with a height of 35-41.5m and a diameter of 1.6-2.4m. The trunk is straight and the base is often enlarged. The bark is gray, taupe or dark Grey, young trees split into flakes and fall off, big trees split into long strips and fall off, the inner bark is light purple brown; branches spread obliquely, branchlets droop; Metasequoia likes light, has a certain ability to resist salt and alkali, on light saline-alkali soil with a salt content of 0.2% It can also grow normally. [0003] The trunk of Metasequoia is straight and straight, the tree shape is magnificent, and the leaves are golden in au...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00
CPCA01G17/005
Inventor 不公告发明人
Owner QINGDAO BAIRUIJI BIOTECH
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