CN105766263A

CN105766263A - Cuttage seedling propagation method for picea asperata

Info

Publication number: CN105766263A
Application number: CN201410804907.3A
Authority: CN
Inventors: 岳兰兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-19
Filing date: 2014-12-19
Publication date: 2016-07-20

Abstract

The invention discloses a cuttage seedling propagation method for picea asperata. The method comprises the following steps: (a) carrying out cuttage: scissoring picea asperata branches, soaking the picea asperata branches by plant growth hormones, and then, inserting the soaked picea asperata branches into cuttage beds so as to obtain seedlings; (b) carrying out seedling hardening: carrying out seedling hardening on the seedlings obtained through carrying out cuttage in the step (a); (c) carrying out first-stage culture: planting the seedlings treated in the step (b) in vessels which are preloaded with nutritional soil, and carrying out pruning so as to determine principal branches; carrying out fertilizer application for at least one time every 20 to 30 days; and ending the first-stage culture when the height of each seedling is 50cm to 70cm, fibrous roots are dense and roots are long and agglomerated; and (d) carrying out second-stage culture: after the first-stage culture ends, transplanting the seedlings into vessels which are preloaded with the nutritional soil, carrying out second-stage culture, and strengthening the principal branches; and sufficiently supplying water, carrying out fertilizer application for at least one time monthly, and carrying out transplanting when the height of each seedling reaches 1.2m to 1.5m. According to the method, a novel method is provided for the artificial cultivation of the picea asperata, the seedling raising speed is accelerated, and the resistance and quality of the seedlings are improved; and the method has the advantage of high propagation speed.

Description

A kind of method of PIECA ASPERATA cutting propagation

Technical field

The invention belongs to plant cultivation field, a kind of method being specifically related to PIECA ASPERATA cutting propagation.

Background technology

PiceameyeriRehd. Et Wils. is perennial evergreen arbor, tree-like proper, it is thick with leaves, isolated planting or sheet are implanted in garden, it is possible to potted plant disposed within, as a kind of ornamental tree species, it is used in serious solemn occasion more, before and after Christmas Day in winter, it is seated in restaurant, hotel and some families more and makes Christmas tree ornament, be loved by the people.PiceameyeriRehd. Et Wils. leaf has obvious whitewash spiracle line, lookes far into the distance such as white side and curl up, dark green lovely, make Garden virescence ornamental tree species, can isolated planting, group planting or plant with juniper, lacebark pine, or do lawn scene that serves as a fopil to.PIECA ASPERATA is China's endemic tree, and the height of tree reaches 45m, and the diameter of a cross-section of a tree trunk 1.3 meters above the ground reaches 1m, originates in the west and south, Shaanxi, In Eastern Gansu and Bailong River Basin and Taohe River, Minjiang River Basin upstream, Sichuan and basin, size Jinchuan, height above sea level 2400～3800m area.The resistance to shade of PIECA ASPERATA, resist cold, like nice and cool moistening weather and fertile subacidity sand deep, well-drained, poor growth, shallow root seeds, like weather with the humid air, neutral and subacidity soil are born in happiness, also alkalescence soil is adapted to, happiness drainage fertile sandy loam good, loose.

PiceameyeriRehd. Et Wils. adapts to dead soil environment, but does not adapt to air pollution environmental.In recent years, along with the destruction of ecological environment, air quality is decreased obviously, the existence of serious harm PiceameyeriRehd. Et Wils..The PIECA ASPERATA being distributed in In Eastern Gansu area gradually decreases, and seeds protection is proposed new requirement by this.Based on the attention of government agencies at all levels, artificial growth PIECA ASPERATA has become normality.But the at present plantation of PIECA ASPERATA broadcasts breeding to plant, and seed need to experience very long rest period, therefore wants the breaking dormancy phase before sowing, common practices is through 45 DEG C of beginning warm macerating kinds 24 hours, and sowing after accelerating germination of sterilizing.Although wilder breeding improves emergence rate, shortening sprouting time, but still need long time, and emergence rate is relatively low, it is often more important that Resistance of Seedling is poor, need artificial careful nurse, guarantee is survived.Therefore, there is the problems such as low, the seedling poor quality of emergence rate in the seed propagation method of existing PiceameyeriRehd. Et Wils..

Summary of the invention

The technical problem to be solved in the present invention is the problem that the seedling culture quality of PIECA ASPERATA in prior art is not high.

To achieve these goals, the present invention adopts the following technical scheme that

A kind of method of PIECA ASPERATA cutting propagation, it comprises the following steps:

A, cuttage: clip PIECA ASPERATA branch, after auxin soaks, insert and obtain seedling on cutting bed；

B, seedling exercising: seedling cuttage in a step obtained carries out seedling exercising；

C, first stage cultivate: the seedling after b step being processed is planted in the container being preinstalled with Nutrition Soil, prune and determine major branch；Within every 20～30 days, use at least disposable fertilizer material；Treating that height of seedling is to 50cm～70cm, fibrous root is dense, root system length and agglomerating time terminate the first stage cultivate, the time is 5～7 months；

D, second stage are cultivated: seedling replanting is entered to be preinstalled with the cultivation carrying out second stage in the container of Nutrition Soil, righting major branch after having cultivated by the first stage；Sufficiently conducted water supply, monthly at least applies fertilizer once, can go out garden when nursery stock reaches 1.2～1.5m height, and the time is 7～9 months.

Further, the auxin described in step a is the NAA of the carbendazim of 90～120ppm and 50～90ppm, and soak time is 12～18 hours.

Further, the substrate of the cutting bed described in step a is perlite: Vermiculitum: the grains of sand: red soil mixes in the ratio of 1:1:1:3, and pH is 6.0～7.2.

Further, setting up booth in step a described in said method on cutting bed, booth arranges shade net, keeping relative air humidity in booth is 80～85%, and in canopy, temperature is 15～20 DEG C, and the soil moisture is 8～10 DEG C.

Further, seedling exercising described in said method refers to open wide the greenhouse film on cutting bed and shading screen and is exposed in external environment by Seedling, and opening wide 2 hours from every day, the unlimited time increases day by day, 10～20 days seedling exercising time.

Further, Nutrition Soil described in said method is fully pulverized and mixed by soil, the grains of sand and decomposed manure and forms, and its ratio is soil: the grains of sand: decomposed manure=6:1:2.

Further, in Nutrition Soil described in said method, also can add appropriate vinegar, to adjust pH value for 6.0～6.8.

The inventive method compared with prior art, has the advantages that

1) with PIECA ASPERATA branch for breeding parent, solve and kind broadcast that the emergence rate that breeding exists is low, Resistance of Seedling is poor, the problem that survival rate is low；Carrying out artificial cutting propagation with branch for breeding parent, this is the tame a kind of new method of PIECA ASPERATA, the problem avoiding kind of seed dormancy sowing time phase length and causing growing-seedling period length.

2) quality and quantity of the qualified Seedling of PIECA ASPERATA seedling can be effectively improved, the qualified Seedling cultivated occurs that after the grown in field of 2 years Early blooming and fruiting strain number and quality thereof are superior to prior art, achieve beyond thought effect, solve this area insoluble technical problem for a long time.The inventive method is easy and simple to handle, with low cost, has good application prospect.

Detailed description of the invention

Below by way of detailed description of the invention, the inventive method is described in detail.

Embodiment 1

A, cuttage: the healthy and strong PIECA ASPERATA branch that clip is suitable, insert on cutting bed after auxin soaks；Described auxin is the NAA of the carbendazim of 90～120ppm and 50～90ppm, and soak time is 12～18 hours, it is preferred that soak time is 15 hours.The substrate of described cutting bed is perlite: Vermiculitum: the grains of sand: red soil mixes in the ratio of 1:1:1:3, and pH is 6.0～7.2.Also setting up booth on cutting bed, booth arranges shade net, keeping relative air humidity in booth is 80～85%, and in canopy, temperature is 15～20 DEG C, and the soil moisture is 8～10 DEG C.

B, seedling exercising: the seedling obtained after cuttage success in a step is carried out seedling exercising；Described seedling exercising refers to open wide the greenhouse film on cutting bed and shading screen and is exposed in external environment by Seedling, and opening wide 2 hours from every day, the unlimited time increases day by day, 10～20 days seedling exercising time.

C, first stage cultivate: the seedling after b step being processed is planted in the container being preinstalled with Nutrition Soil, prune and determine major branch；Within every 20～30 days, use at least disposable fertilizer material；Treating that height of seedling is to 50cm～70cm, fibrous root is dense, root system length and agglomerating time terminate the first stage cultivate, the time is 5～7 months.Described Nutrition Soil is fully pulverized and mixed by soil, the grains of sand and decomposed manure and forms, and its ratio is soil: the grains of sand: decomposed manure=6:1:2.In order to reach better effect, Nutrition Soil adds appropriate vinegar, to adjust pH value for 6.0～6.8.The soil used of Nutrition Soil is the general mellow soil that can be used for cultivation.Decomposed manure is also general farmers''s decomposed manure.

The method that cutting described in the inventive method step a prepares is: select the branch on the sunny side that ventilates of the PIECA ASPERATA tree middle and upper part of the robust growth of life in 5 years, every strain gathers the 5 normal branches of branch growth, its length, within 10 centimeters, is sheared branch and is required 5～8 leaves of reservation.In cutting, clip is from first segment 0.3～0.6cm, and lower clip is against descending most joint.After cutting shears, tie up, often tie 50～100.The cutting tied being put in growth hormone and soak on request, the degree of depth that cutting base portion immerses in solution is 1.5～2.2cm.

Cutting seedling reaches cuttage bar in the methods of the invention has more than 3 and length reaches the root of more than 2cm and is considered as the qualified cutting seedling of high-quality.First stage nursery reaches height of seedling 50cm～more than 70cm (without container height, it is desirable to more than 60cm), footpath, ground more than 0.6cm and well developed root system Seedling is dry straight, has no mechanical damage, and without pest and disease damage, tree is exerted, for the qualified Seedling of high-quality.

Second stage reaches height of seedling can go out nursery at 1.2～1.5m.Wherein height of seedling is at more than 130cm, and hat width reaches more than 35cm, footpath, ground more than 5cm, Miao Ganzhi, has no mechanical damage, and without pest and disease damage, tree vigo(u)r is good, for the qualified Seedling of high-quality.Culture vessel in the inventive method can be nutrient bag commonly used in the art or nutritive cube or plastic film container, notices that the diameter of the container of second stage and the degree of depth are greater than the container used by the first stage.Volume does not grow with root in incubation and is preferred.

Claims

1. the method for a PIECA ASPERATA cutting propagation, it is characterised in that: comprise the following steps:

2. the method for a kind of PIECA ASPERATA cutting propagation as claimed in claim 1, it is characterised in that: the auxin described in step a is the NAA of the carbendazim of 90～120ppm and 50～90ppm, and soak time is 12～18 hours.

3. the method for a kind of PIECA ASPERATA cutting propagation as claimed in claim 1, it is characterised in that: the substrate of the cutting bed described in step a is perlite: Vermiculitum: the grains of sand: red soil mixes in the ratio of 1:1:1:3, and pH is 6.0～7.2.

4. the method for a kind of PIECA ASPERATA cutting propagation as claimed in claim 1, it is characterized in that: step a described in said method sets up on cutting bed booth, booth arranges shade net, keeping relative air humidity in booth is 80～85%, in canopy, temperature is 15～20 DEG C, and the soil moisture is 8～10 DEG C.

5. the method for a kind of PIECA ASPERATA cutting propagation as claimed in claim 1, it is characterized in that: seedling exercising described in said method refers to open wide the greenhouse film on cutting bed and shading screen and is exposed in external environment by Seedling, opening wide 2 hours from every day, the unlimited time increases day by day, 10～20 days seedling exercising time.

6. the method for a kind of PIECA ASPERATA cutting propagation as claimed in claim 1, it is characterised in that: Nutrition Soil described in said method is fully pulverized and mixed by soil, the grains of sand and decomposed manure and forms, and its ratio is soil: the grains of sand: decomposed manure=6:1:2.

7. the method for a kind of PIECA ASPERATA cutting propagation as claimed in claim 1, it is characterised in that: also can add appropriate vinegar in Nutrition Soil described in said method, to adjust pH value for 6.0～6.8.