CN100367845C

CN100367845C - Cold-resistant cypress breeding method

Info

Publication number: CN100367845C
Application number: CNB2006100173720A
Authority: CN
Inventors: 王录顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-24
Filing date: 2006-01-24
Publication date: 2008-02-13
Anticipated expiration: 2026-01-24
Also published as: CN1806513A

Abstract

The present invention relates to a method for breeding cold resisting cedars, which can effectively solve the breeding of cedars for satisfying the requirements of cold areas lower than subzero 18 DEG C on landscape plants. In the method, seeds of cedars in the south are soaked and sown and are covered by mulching films in soil after that the seeds are stored below 0 DEG C for 10 months; when young seedlings grow, potassium dihydrogen phosphate mixed liquid is sprayed on the young seedlings when tips grow more than 10cm in autumn for prompting branches to ripe; cutting breeding is carried out; firstly, seedling beds are processed; then, branches of cedars are cut, are placed and soaked in the mixed liquid of rooting agents and sterilization agents and are inserted in furrows or ridges; soil and sand soil are neutral; the inserted branches are covered and shielded by mulching films for keeping suitable soil humidity and air humidity for causing the branches to grow until that the branches root and become young seedlings. The method of the present invention is simple, has the advantages of good breeding effect and high breeding rate, effectively solves the problem of the asexuality breeding of cedars, develops a new bright prospect for landscape plant applications and gives a creationary contribution to park and garden landscapes.

Description

The mating system of cold-resistant cypress

One, technical field

The present invention relates to a kind of mating system of cold-resistant cypress.

Two, background technology

Cypress is a cold-resistant mutation of cypress for the Cupressaceae cypress belongs to aiphyllium, and is soft sagging naturally because of its branches and leaves, so claim cypress, is rare view seeds.

Development along with the gardens industry, people more and more pay attention to landscaping, the plant of beautifying the environment at present mostly is deciduous plant in the north, evergreen all the year round plant is few, with regard to cold-resistant cypress, it is very slow to grow, and form is not beautiful, is difficult for being used for greening environment as landscape plant, and there is a kind of cypress in existing northern mountain area, but a little less than its fertility, and do not have cultivating seeds, thus can't be used for the town and country garden landscape, and southern cypress can't be in northern normal growth and plantation because of cold-resistant difference, actual needs to landscape plant in this and the modern life mismatches very much, southern aiphyllium cypress be carried out artificial breeding so and as landscape plant?

Three, summary of the invention

Actual needs at above-mentioned situation and garden landscape, the present invention's purpose just provides a kind of mating system of cold-resistant cypress, can effectively solve the breeding of cypress to satisfy the needs of the cold district landscape plant more than-18 ℃, the technical scheme of its solution is, adopt the seed of southern cypress to soak at the seed of depositing at least below 0 ℃ 10 months, then, broadcast in the soil, with plastic mulching (or shading), after seedling grows, grow 10cm slightly in the autumn and in time spray the potassium dihydrogen phosphate mixed liquor when above, impel shoot maturation, cutting out plugged ear again breeds, its cutting propagation is, at first the seedbed is handled, cutting cypress branch again, branch clip position is young sprout and side shoot base portion tie point then, shear branch after, place and take root and the sterilization mixed liquor soaks, carry out that furrow are inserted or insert on the ridge, the soil of transplanting is husky earth neutrality, and sprout with plastic mulching and screening the back of transplanting, and execute water in good time, keep suitable soil moisture and air humidity, until taking root into seedling is portable, and grafting and breeding is arbor-vitae with the branch grafting, on the Chinese juniper of Henan, make its growing.

The inventive method is simple, breeds effectively, and the breeding rate height efficiently solves the pierre problem of cypress, uses for landscape plant and has opened up new bright prospect, for garden landscape is made creative contribution.

Four, embodiment

Below in conjunction with actual conditions the specific embodiment of the present invention is elaborated.

Provide by technique scheme, the present invention puts into 55 ℃ warm water and ceaselessly stirs deposit 10 months (south) cypress seeds at least below 0 ℃ (zero degree), be cooled to 18-25 ℃, place again after 24 hours and sow, sowing ground temperature is average daily more than 10 ℃, soil is neutral husky earth, seed thickness of earth covering 0.5-1cm, after planting use plastic mulching, spray with the urea of gibberellin 20mg/kg and 3 ‰ and 3 ‰ potassium dihydrogen phosphate mixed liquor after coming up, spray in per 10 days once, continuous three times, soil moisture keeps 70-80%, after seedling grew up 2 years, adopting more than-18 ℃ the seedling strain of normal growth to cut out cuttage (or claiming plugged ear) again breeds, said cutting propagation is, the seedling bed, every mu applies farmyard manure 5000kg, N20kg (nitrogenous fertilizer), P10kg (phosphate fertilizer), K15kg (potash fertilizer), every mu adds albarium 50-100kg to disinfecting soil again, and keep neutral, afterwards the soil is split into the dark 15-20cm of soil, wide 1M, the furrow of long 8-10M or shape seedbed, ridge, pour water and soak into, the clip cypress is the long 10-15cm of young sprout side shoot then, the clip position is young sprout and side shoot base portion tie point, after branch shears, putting into solution middling speed that indolebutyric acid (IBA) or methyl 800mg/kg+50% carbendazim (or 70% thiophanate methyl) add 600 times of formations of water was stained with for 10 seconds or puts into by what methyl (NAA) 50mg/kg or long-living dose of 40mg/kg of ABT and 50% carbendazim added that 600 times in water makes and take root for taking root under 20-25 ℃ with the sterilization mixed liquor and handled 6-8 hour, with the branch after handling in the soil 20cm degree of depth, ten days is with the leaf cuttage during 12 ℃ of equal temperature, with plastic mulching with shade, density is line-spacing 10cm, spacing in the rows 5cm, insert soil 6-8cm, steady and sure, after the cuttage, manage with delicacy, making average daily temperature is 25 ℃ (being 20-30 ℃), and pour water in good time, the maintenance air humidity is 80-90%, soil moisture 60-70%, become seedling until growing new root, can transplant.

For the leafing of taking root as early as possible, prevent disease, in case of necessity, can add the growth encourage disinfectant liquid that water 600 times+3% urea is made by 10mg/kg gibberellin+70% thiophanate methyl in foliage spray.

The present invention is except that cuttage, also can adopt grafting, its method is that clip is worked as older 15cm, slightly 〉=the hard branch of the young sprout of 0.5cm, with the monolateral inclined-plane that scabbles long 2-3cm, bottom, again with the arbor-vitae of rugosity 〉=1.2cm, the Henan Chinese juniper makes stock (grafting carrier), cut off apart from top, face of land 20cm place, the corresponding tongue mouth that is cut into monolateral long 2-3cm will make scion aim at the stock cambium, and (10-20 ℃ spring and autumn) carries out cortex grafting under average daily temperature more than 15 ℃, tighten Bao Yan with Polypropylence Sheet again, preceding 3 days of grafting irritates once permeable with the nursery, and pouring water after the grafting irrigates again, after this, watered once permeablely in per 10 days, sprout until young sprout.

Survival rate height of the present invention; the general skewer of inserting is more than 95%, and grafting is preferably adopted cutting propagation more than 80%; cost is low; fast, the amount of breeding is big, can satisfy the needs of garden landscape fully; its test is bred successfully; be the popularization cultivation of rare plant cypress, make and benefit the mankind and opened up bright prospect, for protection and development cold-resistant cypress new varieties are made creative contribution.

Claims

1. the mating system of a cold-resistant cypress, it is characterized in that, to put into 55 ℃ warm water at the cypress seed of depositing at least below 0 ℃ 10 months ceaselessly stirs, be cooled to 18-25 ℃, place again after 24 hours and sow, sowing ground temperature is average daily more than 10 ℃, soil is neutral husky earth, seed thickness of earth covering 0.5-1cm, after planting use plastic mulching, spray with the urea of gibberellin 20mg/kg and 3 ‰ and 3 ‰ potassium dihydrogen phosphate mixed liquor after coming up, spray in per 10 days once, continuous three times, soil moisture keeps 70-80%, after seedling grew up 2 years, adopt more than-18 ℃ the seedling strain of normal growth to cut out cutting propagation again, said cutting propagation is, the seedling bed, every mu applies farmyard manure 5000kg, nitrogenous fertilizer 20kg, phosphate fertilizer 10kg, potash fertilizer 15kg, every mu adds albarium 50-100kg to disinfecting soil again, and keep neutral, afterwards the soil is split into the dark 15-20cm of soil, wide 1M, the furrow of long 8-10M or shape seedbed, ridge, pour water and soak into, the clip cypress is the long 10-15cm of young sprout side shoot then, the clip position is young sprout and side shoot base portion tie point, after branch shears, putting into solution middling speed that indolebutyric acid or methyl 800mg/kg+50% carbendazim or 70% thiophanate methyl add 600 times of formations of water was stained with for 10 seconds or puts into by what methyl 50mg/kg or long-living dose of 40mg/kg of ABT and 50% carbendazim added that 600 times in water makes and take root for taking root under 20-25 ℃ with the sterilization mixed liquor and handled 6-8 hour, with the branch after handling in the soil 20cm degree of depth, ten days is with the leaf cuttage during 12 ℃ of equal temperature, with plastic mulching with shade, density is line-spacing 10cm, spacing in the rows 5cm, insert soil 6-8cm, steady and sure, after the cuttage, manage with delicacy, making average daily temperature is 25 ℃, and pour water in good time, the maintenance air humidity is 80-90%, and soil moisture 60-70% becomes seedling until growing new root.

2. the mating system of cold-resistant cypress according to claim 1 is characterized in that, said seedling foliage spray adds the growth encourage disinfectant liquid that water 600 times+3 ‰ urea are made by 10mg/kg gibberellin+70% thiophanate methyl.