CN103703997B - Reproduction method for improving eucalyptus cutting rooting rate and scion strip utilization rate - Google Patents
Reproduction method for improving eucalyptus cutting rooting rate and scion strip utilization rate Download PDFInfo
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- CN103703997B CN103703997B CN201310753269.2A CN201310753269A CN103703997B CN 103703997 B CN103703997 B CN 103703997B CN 201310753269 A CN201310753269 A CN 201310753269A CN 103703997 B CN103703997 B CN 103703997B
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Abstract
The invention discloses a reproduction method for improving the eucalyptus cutting rooting rate and the scion strip utilization rate. The method includes the steps that newly-grown eucalyptus scion strips in the year are obtained in a clipped mode, each scion strip is clipped into cutting strips which are 2-3cm in length, 5-8 cutting strips can be obtained by each scion strip, the cutting strips after ABT processing are inserted into yellow subsoil, cultivation is carried out in a greenhouse, the humidity is about 90%, the temperature is about 30 DEG C, the cutting strips take roots after being cultivated for about 30 days, fertilizer and water management is strengthened after root taking, the cutting strips can grow to be rooting seedlings which are 20-25cm in height after cultivation is carried out for about 2-3 months, and the rooting seedlings can be used for afforestation. According to the eucalyptus cutting method, the cutting strip rooting rate is higher than 97%, and the survival rate is high; 5-8 cutting seedlings can be grown by one scion strip, and the utilization rate of the scion strips is high; when a large number of nursery stocks are produced, a cutting orchard with the small size is required, the production cost is remarkably reduced, the economical benefits are improved, and the reproduction method is easy to operate, implement and popularize, and favorable for large-area popularization and application.
Description
Technical field
The invention belongs to field of plant growing technology, be specifically related to a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability.
Background technology
Eucalyptus (Eucalyptus spp.) is the general name that Myrtaceae (Myrtaleas juss) eucalyptus belongs to (Eucalyptus L.Heritier) plant.Eucalyptus has the good characteristics such as strong adaptability, fast growing performance is good, operating cycle is short.Eucalyptus is of many uses, and the eucalyptus oil as extracted from eucalyptus leaves is widely used as cosmetics or pharmaceutical raw material.Eucalyptus Wood is good furniture and art work, and its wood fibre is again good papermaking raw material, therefore eucalyptus worldwide establishing in large scale, and this makes eucalyptus become one of three large forest plantation seeds in the world.
Eucalyptus breeds by seed, group training, grafting, press strip, cuttage 5 kinds of modes.At present, seedling propagation method is only for breeding.Because eucalyptus is cross pollinated species, between kind, plant interior easily hybridization, progeny inherit trait segregation degree is very large, is difficult to the uniformity of guarantee production forest.Due to the high cost of tissue culture propagating, therefore group training is only for excellent female seedling breeding.Propagation by grafiting is also only for preserving fine germplasm resources.The reproduction coefficient of press strip is low, therefore seldom adopts.
Cuttage is the one that in vegetative propagation, application prospect is the widest, train with group, grafting, compared with press strip etc., it has, and operation is simple, reproduction speed is fast, reproduction coefficient is high, low cost and other advantages, but because eucalyptus does not have root restriction, add in its body containing the material suppressing to take root, utilize general branch cutting to breed then root of hair difficulty, must could improve its cutting plantation by HORMONE TREATMENT.Full-automatic spraying and moisturizing cottage propagation is optimum method in facility, but due to its facility cost high, open country cuttage humidity is difficult to ensure, often makes cuttage survival rate low.
At present, about the research of eucalyptus cuttage technique, mainly adopt the spray of 10 ~ 15cm or tender shoots as cutting, for the fringe bar gathered from cutting orchard, a usual fringe bar can only obtain a cutting, lower to the availability of fringe bar, and rooting rate is usually also low.
Set up a kind of simple to operate, rooting rate is high, fringe bar availability is high eucalyptus cuttage breeding method, play important effect by applying of eucalyptus.
Summary of the invention
In order to solve above-mentioned existing problems, the invention provides a kind of the method needing compare Shao Miho bar just can produce a large amount of cuttage seeding, fringe bar availability improves 5 ~ 10 times, rooting rate can reach more than 98%, reduce area needed for cutting orchard, reduce costs, and easy to operation, gained growth of cuttage seedlings is healthy and strong.
The object of the invention is to a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability.
The technical solution used in the present invention is:
Improve eucalyptus cutting plantation Ji a propagation method for Miho bar availability, comprise the following steps:
1) in annual April, June or October, the eucalyptus fringe bar of length 20 ~ 30 cm newborn then of clip health, cut off the higher part of base portion 2 ~ 3cm lignification and the top tender part of children containing 2 ~ 3 axillalry buds, remaining fringe bar is cut into the long cutting containing 1 ~ 2 axillalry bud of 2 ~ 3 cm, retain 1 ~ 2 leaf, and every sheet leaf cuts off 1/2 ~ 2/3, the newborn fringe bar of every bar can obtain 5 ~ 8 cuttings;
2) clean up after cutting being sterilized, then its base portion ABT solution of 200 ~ 400ppm is soaked 1 ~ 2 h;
3) by the cutting cuttage of soaking through ABT in the nutrition cup of yellow soil that sterilization is housed (as shown in Figure 1);
4) nutrition cup is positioned at the cultivation of sterile booth, every spray in 4 ~ 5 days 0.8 ~ 1.0gL
-1carbendazim solution, cultivate 28 ~ 32 angel's rooting of cuttings (if Fig. 2 is the eucalyptus cuttage seeding of taking root);
5) rich water quality management is carried out in the cutting after taking root, drench weekly and execute 5 ~ 10gL
-1nitrogen-phosphorus-potassium compound fertilizer 1 time, cultivate cutting after 2 ~ 3 months and grow up to the seedling of taking root of high 20 ~ 25cm, retain a lopwood bar of its growing way the best, cut off other branches, namely seedling of taking root now can be used for afforestation, and the management after afforestation is with conventional afforestation management.
Further, the eucalyptus fringe bar described in step 1) is the eucalyptus fringe bar of clip from 1 ~ 2 year raw cutting orchard that eucalyptus choiceness plantlet in vitro is set up.
Further, step 2) described in cutting sterilization for 0.8 ~ 1.2gL
-1carbendazim solution sterilization 5 ~ 8min.
Further, the yellow soil of the sterilization described in step 3) is cuttage the previous day with 0.8 ~ 1.0gL
-1carbendazim solution to sterile yellow soil.
Further, the sterile booth described in step 4) to refer to before cuttage 6 ~ 8 days with 2 ~ 5gL
-1the sterile booth of liquor potassic permanganate.
Further, the condition of the cultivation described in step 4) be controlled humidity 88 ~ 92%, temperature is at 28 ~ 32 DEG C.
The invention has the beneficial effects as follows:
The made rooting of cuttings rate of eucalyptus cottage method of the present invention reaches more than 98%, and survival rate is high, and growth of cuttage seedlings is healthy and strong, and grow fast, cost is low, and operation is simple, is easy to promote, is conducive to large scale application.
The present invention can make a fringe bar produce 5 ~ 8 cuttage seeding, and traditional cottage method can only produce at most 1 cuttage seeding, significantly improve the availability of fringe bar, only need compared with the cutting orchard of small size during a large amount of production nursery stock, significantly reduce production cost, improve economic benefit.
Accompanying drawing explanation
Fig. 1 is the Eucalyptus Cuttings Treated of cuttage in yellow soil;
Fig. 2 is that the eucalyptus cuttage seeding of taking root is cultivated in cuttage.
Embodiment
embodiment 1
1) in annual April, June or October, from 1 ~ 2 year raw cutting orchard that eucalyptus choiceness plantlet in vitro is set up, the healthy newborn then fringe bar without damage by disease and insect of clip, long 20 ~ 30cm, cut off the higher part of base portion lignification (about 2 ~ 3cm) and the top tender part of children (about 2 ~ 3 axillalry buds), remaining fringe bar is cut into the cutting of 2 ~ 3cm long (containing 1 ~ 2 axillalry bud), retain 1 ~ 2 leaf, every sheet leaf cuts off 1/2 ~ 2/3, and the newborn fringe bar of every bar according to said method can obtain 5 ~ 8 cuttings usually;
2) cutting 0.8 ~ 1.0gL
-1carbendazim solution sterilization 5 ~ 8min, clean up, then by the ABT process 1 ~ 2h of cutting base portion with 200 ~ 400ppm;
3) the last week is first used 2 ~ 5gL in cuttage
-1liquor potassic permanganate cuttage booth is carried out disinfection, the previous day is used 0.8 ~ 1.0gL in cuttage again
-1carbendazim solution the cutting medium yellow soil installing nutrition cup (diameter is about 8cm) is in advance carried out disinfection, by 2) in through the cutting cuttage of ABT process in yellow soil, make cutting firmly;
4) cutting is positioned at booth cultivation, notes moisture and temperature treatment, and controlled humidity is about 90%, and temperature, at about 30 DEG C, sprayed a 0.8 ~ 1.0gL every 4 ~ 5 days
-1carbendazim solution, cultivate and can take root for about 30 days;
5) cutting after taking root should strengthen rich water quality management, promotes seedling growth, drenches weekly and executes 5 ~ 10gL
-1composite fertilizer's (mass percent of N P and K is more than 45%) 1 time, cultivate the seedling of taking root that can grow up to high about 20cm after 2 ~ 3 months, retain a lopwood bar of growing way the best, cut off other branches, namely seedling of taking root now can be used for afforestation, and the management after afforestation is with conventional afforestation management.
The cutting of cultivating 2 months in embodiment 1 is carried out rooting rate with the statistics of Miho bar availability, and the rooting rate obtained with traditional cottage method is with Miho bar availability contrasts, as shown in table 1, wherein traditional cottage method is shown in " Technology in Cutting Breeding Seedling of Eucalyptus; research Agriculture in Jiangxi journal; 2011,23 (8): 59 ~ 60 ".
Contrast between the eucalyptus survival rate that table 1 the inventive method and traditional cuttage obtain He Miho bar availability
Note: fringe bar availability refers to the cutting number that average every bar fringe bar obtains.
Can know from the data that table 1 is added up, this inventive method Miho bar availability is about 5 times of traditional cottage method, and survival rate is also obviously better than traditional cottage method.
Claims (6)
1. improve a propagation method for eucalyptus cutting plantation and Miho bar availability, it is characterized in that: comprise the following steps:
1) in annual April, June or October, the eucalyptus fringe bar of length 20 ~ 30 cm newborn then of clip health, cut off the higher part of base portion 2 ~ 3cm lignification and the top tender part of children containing 2 ~ 3 axillalry buds, remaining fringe bar is cut into the long cutting containing 1 ~ 2 axillalry bud of 2 ~ 3 cm, retain 1 ~ 2 leaf, and every sheet leaf cuts off 1/2 ~ 2/3, the newborn fringe bar of every bar can obtain 5 ~ 8 cuttings;
2) clean up after cutting being sterilized, then its base portion ABT solution of 200 ~ 400ppm is soaked 1 ~ 2 h;
3) by the cutting cuttage of soaking through ABT in the nutrition cup of yellow soil that sterilization is housed;
4) nutrition cup is positioned at the cultivation of sterile booth, every spray in 4 ~ 5 days 0.8 ~ 1.0gL
-1carbendazim solution, cultivate 28 ~ 32 angel's rooting of cuttings;
5) rich water quality management is carried out in the cutting after taking root, drench weekly and execute 5 ~ 10gL
-1nitrogen-phosphorus-potassium compound fertilizer 1 time, cultivate cutting after 2 ~ 3 months and grow up to the seedling of taking root of high 20 ~ 25cm, retain a lopwood bar of its growing way the best, cut off other branches, namely seedling of taking root now can be used for afforestation, and the management after afforestation is with conventional afforestation management.
2. according to claim 1ly a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability, it is characterized in that: the eucalyptus fringe bar described in step 1) is the eucalyptus fringe bar of clip from 1 ~ 2 year raw cutting orchard that eucalyptus choiceness plantlet in vitro is set up.
3. according to claim 1ly a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability, it is characterized in that: step 2) described in cutting sterilization for 0.8 ~ 1.2gL
-1carbendazim solution sterilization 5 ~ 8min.
4. according to claim 1ly a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability, it is characterized in that: the yellow soil of the sterilization described in step 3) is cuttage the previous day with 0.8 ~ 1.0gL
-1carbendazim solution to sterile yellow soil.
5. according to claim 1ly a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability, it is characterized in that: the sterile booth described in step 4) to refer to before cuttage 6 ~ 8 days with 2 ~ 5gL
-1the sterile booth of liquor potassic permanganate.
6. according to claim 1ly a kind ofly improve eucalyptus cutting plantation Ji the propagation method of Miho bar availability, it is characterized in that: the condition of the cultivation described in step 4) be controlled humidity 88 ~ 92%, temperature is at 28 ~ 32 DEG C.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104381051B (en) * | 2014-12-09 | 2017-02-22 | 湖南省森林植物园 | Eucalyptus benthamii cutting seedling method |
| CN105706870A (en) * | 2016-01-29 | 2016-06-29 | 文沁 | Borneol cinnamomum camphora seedling raising method |
| CN110337975B (en) * | 2019-07-09 | 2021-06-01 | 广西壮族自治区林业科学研究院 | Method for improving grafting survival rate of Eucalyptus macrocarpa |
| CN111512867A (en) * | 2020-04-09 | 2020-08-11 | 中国林业科学研究院热带林业研究所 | Efficient cutting method for acer ginnala |
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| JP3861542B2 (en) * | 1999-12-28 | 2006-12-20 | 日本製紙株式会社 | How to make new cuttings |
| JP2007319047A (en) * | 2006-05-31 | 2007-12-13 | Oji Paper Co Ltd | Method for creating seedling or scion-production mother tree |
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