CN103814745B - Method for cutting propagation by utilizing lithocarpus polystachyus epicormic branches - Google Patents
Method for cutting propagation by utilizing lithocarpus polystachyus epicormic branches Download PDFInfo
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- CN103814745B CN103814745B CN201410087196.2A CN201410087196A CN103814745B CN 103814745 B CN103814745 B CN 103814745B CN 201410087196 A CN201410087196 A CN 201410087196A CN 103814745 B CN103814745 B CN 103814745B
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Abstract
The invention relates to a method for cutting propagation by utilizing lithocarpus polystachyus epicormic branches. The method is characterized by comprising the working procedures of cutting bed preparation, cutting slips acquisition and processing, cutting and post-cutting management, cutting in a seedling raising garden by utilizing the lithocarpus polystachyus epicormic branches, and obtaining high-quality lithocarpus polystachyus nursery-grown plants through controlling illumination, relative humidity and water content of a substrate. The method utilizing the lithocarpus polystachyus epicormic branches belongs to a vegetative propagation means, and has the advantage of being capable of maintaining excellent characteristics of seed trees. Compared with sowing seedlings, the cutting seedlings are obviously increased in growth speed, large in growth amount and high in adaptability in the initial stage after being planted. The method is simple and feasible, high in efficiency, low in cost, high in propagation speed and high in propagation coefficient, the characteristics of excellent strains can be well maintained, limitation to the time and the season is avoided, the propagation efficiency and continuity are facilitated, and the method can be directly applied to actual production and has better economic benefits, social benefits and ecological benefits.
Description
Technical field
The invention belongs to technical field of plant asexual propagation, relate to a kind of propagation method of Pasania cuspidata, especially a kind of method utilizing Pasania cuspidata softwood cutting propagation.
Background technology
Pasania cuspidata (L
ithocarpus polystachyus) be precious woods source medicinal material seeds, be made into " sweet tea " among the people is drunk, and has spread more than one thousand years, especially originates in the township of world's longevity---and the sweet tea of Pasania cuspidata in Guangxi China Ba Ma county is called as " life-prolonging tea ", enjoys favor.Flavonoids is the drug effect principal component of Pasania cuspidata, and its content, more than 30 %, receives much concern with the phloridzin of dihydrochalcone glycoside, trifloroside especially.Pasania cuspidata flavonoids has very strong anti-oxidant and plurality of health care functions, particularly research in recent years finds, Pasania cuspidata and extract thereof have obvious hypoglycemic blood fat effect, this at present in the world common concern mankind killer---control and the treatment of diabetes have great significance, the concern of numerous researcher makes Pasania cuspidata become a study hotspot of the persistent ailment of this puzzlement human health.Resource Cultivation and Sustainable Development and Utilization are carried out to Pasania cuspidata, has far-reaching influence for the protection of its wild resource, the sound development of the promotion mankind.
Pasania cuspidata is based on seed propagation method, but seminal propagation needs the pregermination procedure of 2-3 month, and seed sprouting is irregular, and descendants specialize clearly simultaneously, is difficult to keep maternal excellent economic characters.Cottage propagation has simple, that effect height is inexpensive, reproduction speed is fast, reproduction coefficient is high feature, can directly apply to actual production.Cottage propagation, as vegetative propagation means, has the advantage that can keep elite stand good characteristic, and this is for the maintenance important in inhibiting of the excellent economic characters required by economic forest cultivation.Cuttage seeding is compared with tree seedling, and after planting, primary growth speed obviously increases, and amount of growth is large, and strong adaptability, therefore cuttage seeding is more satisfactory reforestation material.The normal cutting propagation propagation method of current Pasania cuspidata is long for breeding cycle, and rooting rate is unstable, and root system is less-developed, shows as that main root is obvious, lateral root development is bad, and after afforestation, growth perfonnance is not good enough, is unfavorable for large-scale production and the Application and Development of Pasania cuspidata cottage propagation.
Through large quantity research, utilize Pasania cuspidata spray, adopt mixed-matrix, use mixing root-growing agent to carry out cuttage and can reach good rooting efficiency.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method utilizing Pasania cuspidata softwood cutting propagation that cultivation period is short, root system is good, survival rate is high, easy and simple to handle.
The present invention is achieved in that
A kind of method utilizing Pasania cuspidata softwood cutting propagation, comprise that cutting bed prepares, cuttings acquisition and processing and transfer, cuttage, manage operation after cuttage, utilize the cuttage in Seedlings nursery of Pasania cuspidata spray, by controlling illumination in Seedlings nursery, relative moisture and water content of substrate, obtain high-quality Pasania cuspidata nursery stock, its operating procedure is as follows:
1, cutting bed prepares:
(1) cutting bed: select leeward on the sunny side, the place of good water permeability builds outdoor cutting bed, cutting bed is long and wide is 10 ~ 20 m × 1 ~ 1.2 m, cutting bed with stone or rough sand rebasing;
(2) cutting medium: using peat soil, red soil and coconut palm chaff as cutting medium, loads cutting medium in the nutritious bag of 8 × 12, is closely placed in cutting bed; First 1 day of cuttage is that the potassium permanganate of 0.1 % is to matrix disinfection by concentration;
2, cuttings acquisition and processing:
(1) cuttings collection: cuttings is captured in South China all can arrange cuttage the whole year, best cutting time be annual March to November, during collection on scion-seed tree the green branch of semi-lignified as cuttage cuttings;
(2) prune cuttings: the single leaf simple bud cuttings fringe bar of semi-lignified being cut into 8 ~ 10 cm, lower end angle, bud is close in upper end, flat mouth, ties with rubber band or thin cotton cord;
(3) disinfect: cuttings is neatly discharged, soak with 0.5 % carbendazim, sterilization 15 ~ 20min, taking-up clear water rinses stand-by;
(4) HORMONE TREATMENT: indole-3-butyric acid (IBA) and methyl α-naphthyl acetate (NAA) are mixed with hormone mixed solution, inserts cuttings lower end 3 ~ 5 cm in hormone mixed solution, soaks 1h, pulls out to be slightly used as that 2 ~ 3min is air-dry carries out cuttage immediately;
3, cuttage:
(1) matrix is watered: before cuttage, matrix is evenly watered, and makes substrate water content reach 67 ~ 73 %;
(2) cuttage: be ready in the nutritious bag of mixed-matrix by being inserted into through hormone-treated cuttings, every bag of cuttings, cuttings face of blade upward, the cuttage degree of depth is 3 ~ 5 cm, then by the cutting medium compacting around cuttings, water root-growing agent solution residual on 1 permeable double flushing blade immediately, make substrate water content reach 100 %, make cuttings fully contact with cutting medium simultaneously;
4, manage after cuttage:
(1) build shade: plug the simple and easy shed of thin bamboo strips used for weaving built in both sides, seedbed, cover overlay, then add lid layer 60 % shade net, if nursery itself is provided with overhead cool canopy, then need not add a cover shade net, evenly cover compression molding material film edge with earth under seedbed, prevent seedbed water loss;
(2) disease control: sprayed once sterilizing every 7 days with carbendazim 1000 times of liquid after cuttage, prevent from growing miscellaneous bacteria, sprays and selects to carry out after the sun sets, water spray was stopped before half an hour to morning sunrise before spray medicine, after spray medicine, overlay film is arranged, continue to keep sternly sealing state;
(3) manage after taking root: after cuttage, namely the cuttings of 60 days 90 % takes root, now overlay is removed, 60 ~ 70 % are kept to shelter from heat or light, prevent from being exposed to the sun, manage until go out garden in conventional liquid manure mode, frequency of watering, to ensure substrate water content at 80 more than % for principle, according to fine day, the actual conditions at cloudy day adjustment irrigation times and intensity, obtains high-quality Pasania cuspidata nursery stock.
The formula material volume ratio proportioning of above-described cutting medium: peat soil: red soil: coconut palm chaff is 2: 2: 1, mixes for subsequent use; Described coconut palm chaff is the coconut palm chaff fully become thoroughly decomposed routinely.
Above-described cuttage cuttings to gather on fringe elite stand 10 ~ 15 cm robust growth without damage by disease and insect, the green branch of semi-lignified as cuttage cuttings.
The compound method of above-described hormone mixed solution is: first use the medicinal alcohol of 95 % indole-3-butyric acid (IBA) and methyl α-naphthyl acetate (NAA) to be dissolved respectively, then adding distil water is configured to the concentrate that concentration is 10 g/L; Volume ratio by IBA: NAA=5: 1 measures two kinds of solution respectively, adds the distilled water constant volume of 22/3 times, be configured to the hormone mixed solution of IBA 1000mg/L+NAA 200mg/L after mixing.
The present invention has the following advantages relative to existing technology:
1, of the present inventionly Pasania cuspidata softwood cutting propagation nursery stock is utilized, there is the amount of taking root large, the obvious feature of lateral root development, after flourishing side root is conducive to planting, seedling root recovers rapidly, grows, be conducive to improving survival rate, having under the condition of shading, the whole year all can carry out, be not subject to the restriction in time and season, be conducive to high efficiency and the continuity of breeding; And existing Pasania cuspidata normal cutting propagation propagation method is numerous, the cycle of educating is long, and rooting rate is unstable, and root system is less-developed, and main root is obvious, lateral root development is bad, and after afforestation, growth perfonnance is not good enough, is unfavorable for large-scale production and the Application and Development of Pasania cuspidata cottage propagation.
2, utilize Pasania cuspidata softwood cutting propagation nursery stock compared with sowing nursery stock, after planting, primary growth speed obviously increases, and amount of growth is large, strong adaptability; Therefore, Pasania cuspidata softwood cutting propagation nursery stock is utilized to be more satisfactory afforestation material.
3, the method utilizing Pasania cuspidata softwood cutting propagation of the present invention, have simple, effect high inexpensive, reproduction speed is fast, reproduction coefficient is high, the feature of maintenance excellent strain that can be good, can actual production be directly applied to, there are good economic benefit, social benefit and ecological benefits.
Embodiment
Below the concrete operation step of propagation method of the present invention is described in detail:
embodiment 1:
Cuttings collection, cutting time are April, select leeward on the sunny side, the place of good water permeability builds outdoor cutting bed, cutting bed is long and wide is 16 ~ 20 m × 1 m, and cutting bed is rebasing with rough sand.Using peat soil, red soil and the coconut palm chaff that fully becomes thoroughly decomposed as the formula material of cuttage mixed-matrix, its volume ratio is 2: 2: 1, and mixing, then loads in the nutritious bag of 8 × 12, be closely placed in cutting bed; First 1 day of cuttage is that the potassium permanganate of 0.1% is to matrix disinfection by concentration.
Gathering fringe bar is on scion-seed tree, try one's best the long robust growth of branch base portion profit clip 10 ~ 12 cm without damage by disease and insect, the green branch of semi-lignified as cuttage cuttings.The fringe bar of semi-lignified is cut into single leaf simple bud cuttings of 8 ~ 9 cm, lower end angle, bud is close in upper end, flat mouth, ties with rubber band.Then cuttings is neatly discharged, soak with 0.5 % carbendazim, sterilization 20min, after taking-up clear water rinses, cuttings lower end 3 cm being inserted concentration is in the HORMONE TREATMENT mixed solution of IBA 1000mg/L+NAA 200mg/L, soak 1h, pull out and be slightly used as that 2min is air-dry carries out cuttage immediately.Before cuttage, matrix is evenly watered, make substrate water content reach 67 ~ 70 %; Be ready in the nutritious bag of mixed-matrix by being inserted into through hormone-treated cuttings again, every bag of cuttings, cuttings face of blade upward, the cuttage degree of depth is 3 ~ 4 cm, then by the cutting medium compacting around cuttings, water root-growing agent solution residual on 1 permeable double flushing blade immediately, make substrate water content reach 100 %, make cuttings fully contact with cutting medium simultaneously.
Plug the simple and easy shed of thin bamboo strips used for weaving built in both sides, seedbed after cuttage, cover overlay, then add lid layer 60 % shade net, evenly cover compression molding material film edge with earth under seedbed, prevent seedbed water loss.After cuttage, sprayed once sterilizing every 7 days with carbendazim 1000 times of liquid again, prevent from growing miscellaneous bacteria, spray and select to carry out after the sun sets, water spray was stopped before half an hour to morning sunrise before spray medicine, after spray medicine, overlay film is arranged, continue to keep sternly sealing state.
Investigation in 60 days after cuttage, rooting rate is 92.1 %.
After cuttage rooting, overlay is removed, keep 60 ~ 65 % to shelter from heat or light, manage until go out garden in conventional liquid manure mode, frequency of watering, to ensure substrate water content at 80 more than % for principle, according to fine day, the actual conditions at cloudy day adjustment irrigation times and intensity, obtains high-quality Pasania cuspidata nursery stock.
embodiment 2:
Cuttings collection, cutting time are July, select leeward on the sunny side, the place of good water permeability builds outdoor cutting bed, cutting bed is long and wide is 10 ~ 12 m × 1.2 m, and under cutting bed, on stone, rough sand is rebasing.Using peat soil, red soil and the coconut palm chaff that fully becomes thoroughly decomposed as the formula material of cuttage mixed-matrix, its volume ratio is 2: 2: 1, and mixing, then loads in the nutritious bag of 8 × 12, be closely placed in cutting bed; First 1 day of cuttage is that the potassium permanganate of 0.1 % is to matrix disinfection by concentration.
Gathering fringe bar is on scion-seed tree, try one's best the long robust growth of branch base portion profit clip 10 ~ 12 cm without damage by disease and insect, the green branch of semi-lignified as cuttage cuttings.The fringe bar of semi-lignified is cut into single leaf simple bud cuttings of 8 ~ 9 cm, lower end angle, bud is close in upper end, flat mouth, ties with thin cotton cord.Then cuttings is neatly discharged, soak with 0.5 % carbendazim, sterilization 15min, after taking-up clear water rinses, cuttings lower end 3.5 cm being inserted concentration is in the HORMONE TREATMENT mixed solution of IBA 1000 mg/L+NAA 200 mg/L, soak 1h, pull out and be slightly used as that 3min is air-dry carries out cuttage immediately.Before cuttage, matrix is evenly watered, make substrate water content reach 70 ~ 73 %; Be ready in the nutritious bag of mixed-matrix by being inserted into through hormone-treated cuttings again, every bag of cuttings, cuttings face of blade upward, the cuttage degree of depth is 5 cm, then by the cutting medium compacting around cuttings, water root-growing agent solution residual on 1 permeable double flushing blade immediately, make substrate water content reach 100 %, make cuttings fully contact with cutting medium simultaneously.
Plug the simple and easy shed of thin bamboo strips used for weaving built in both sides, seedbed after cuttage, cover overlay, then add lid layer 60 % shade net, evenly cover compression molding material film edge with earth under seedbed, prevent seedbed water loss.After cuttage, sprayed once sterilizing every 7 days with carbendazim 1000 times of liquid again, prevent from growing miscellaneous bacteria, spray and select to carry out after the sun sets, water spray was stopped before half an hour to morning sunrise before spray medicine, after spray medicine, overlay film is arranged, continue to keep sternly sealing state.
Investigation in 60 days after cuttage, rooting rate is 88.3%.
Now overlay is removed, keep 75 % to shelter from heat or light, prevent from being exposed to the sun, manage until go out garden in conventional liquid manure mode, frequency of watering, to ensure substrate water content at 80 more than % for principle, according to fine day, the actual conditions at cloudy day adjustment irrigation times and intensity, obtains high-quality Pasania cuspidata nursery stock.
embodiment 3:
Cuttings collection, cutting time are February, select leeward on the sunny side, the place of good water permeability builds the overhead cool canopy in nursery and cutting bed, cutting bed is long and wide is 10 m × 1.2 m, and cutting bed is rebasing with rough sand.Using peat soil, red soil and the coconut palm chaff that fully becomes thoroughly decomposed as the formula material of cuttage mixed-matrix, its volume ratio is 2: 2: 1, and mixing, then loads in the nutritious bag of 8 × 12, be closely placed in cutting bed; First 1 day of cuttage is that the potassium permanganate of 0.1 % is to matrix disinfection by concentration.
Gathering fringe bar is on scion-seed tree, press close to the long robust growth of branch base portion profit clip 13 ~ 15 cm without damage by disease and insect, the green branch of semi-lignified as cuttage cuttings.The fringe bar of semi-lignified is cut into single leaf simple bud cuttings of 10 cm, lower end angle, bud is close in upper end, flat mouth, ties with rubber band or thin cotton cord.Then cuttings is neatly discharged, soak with 0.5 % carbendazim, sterilization 18min, after taking-up clear water rinses, cuttings lower end 3 cm being inserted concentration is in the HORMONE TREATMENT mixed solution of IBA 1000 mg/L+NAA 200 mg/L, soak 1h, pull out and be slightly used as that 2 min are air-dry carries out cuttage immediately.Before cuttage, matrix is evenly watered, make substrate water content reach 70 %; Be ready in the nutritious bag of mixed-matrix by being inserted into through hormone-treated cuttings again, every bag of cuttings, cuttings face of blade upward, the cuttage degree of depth is 4 ~ 5 cm, then by the cutting medium compacting around cuttings, water root-growing agent solution residual on 1 permeable double flushing blade immediately, make substrate water content reach 100 %, make cuttings and cutting medium combine closely simultaneously.
After cuttage, the simple and easy shed of thin bamboo strips used for weaving built is plugged in both sides, seedbed, covers overlay, evenly covers compression molding material film edge with earth under seedbed, prevents seedbed water loss.After cuttage, sprayed once sterilizing every 7 days with carbendazim 1000 times of liquid again, prevent from growing miscellaneous bacteria, spray and select to carry out after the sun sets, water spray was stopped before half an hour to morning sunrise before spray medicine, after spray medicine, overlay film is arranged, continue to keep sternly sealing state.
Investigation in 60 days after cuttage, the cuttage rooting of 85.7 %.
Now overlay is removed, keep 60 % to shelter from heat or light, prevent from being exposed to the sun, manage until go out garden in conventional liquid manure mode, frequency of watering, to ensure substrate water content at 80 more than % for principle, according to fine day, the actual conditions at cloudy day adjustment irrigation times and intensity, obtains high-quality Pasania cuspidata nursery stock.
embodiment 4:
Cuttings collection, cutting time are November, select leeward on the sunny side, the place of good water permeability builds the overhead cool canopy in nursery and cutting bed, cutting bed is long and wide is 10 m × 1 m, and cutting bed is rebasing with stone.Using peat soil, red soil and the coconut palm chaff that fully becomes thoroughly decomposed as the formula material of cuttage mixed-matrix, its volume ratio is 2: 2: 1, and mixing, then loads in the nutritious bag of 8 × 12, be closely placed in cutting bed; First 1 day of cuttage is that the potassium permanganate of 0.1 % is to matrix disinfection by concentration.
Gathering fringe bar is on scion-seed tree, press close to the long robust growth of branch base portion profit clip 13 ~ 14 cm without damage by disease and insect, the green branch of semi-lignified as cuttage cuttings.The fringe bar of semi-lignified is cut into single leaf simple bud cuttings of 8 ~ 9 cm, lower end angle, bud is close in upper end, flat mouth, ties with rubber band or thin cotton cord.Then cuttings is neatly discharged, soak with 0.5 % carbendazim, sterilization 15min, after taking-up clear water rinses, cuttings lower end 3 cm being inserted concentration is in the HORMONE TREATMENT mixed solution of IBA 1000 mg/L+NAA 200 mg/L, soak 1h, pull out and be slightly used as that 2min is air-dry carries out cuttage immediately.Before cuttage, matrix is evenly watered, make substrate water content reach 73 %; Be ready in the nutritious bag of mixed-matrix by being inserted into through hormone-treated cuttings again, every bag of cuttings, cuttings face of blade upward, the cuttage degree of depth is 4 ~ 5 cm, then by the cutting medium compacting around cuttings, water immediately 1 time permeable, rinse root-growing agent solution residual on blade simultaneously, make substrate water content reach 100 %, make cuttings and cutting medium combine closely simultaneously.
Plug the simple and easy shed of thin bamboo strips used for weaving built in both sides, seedbed after cuttage, cover overlay, evenly cover compression molding material film edge with earth under seedbed, prevent seedbed water loss.After cuttage, sprayed once sterilizing every 7 days with carbendazim 1000 times of liquid again, prevent from growing miscellaneous bacteria, spray and select to carry out after the sun sets, water spray was stopped before half an hour to morning sunrise before spray medicine, after spray medicine, overlay film is arranged, continue to keep sternly sealing state.
Investigation in 60 days after cuttage, the cuttage rooting of 90.1 %.
Now overlay is removed, keep 60 % to shelter from heat or light, prevent from being exposed to the sun, manage until go out garden in conventional liquid manure mode, frequency of watering, to ensure substrate water content at 80 more than % for principle, according to fine day, the actual conditions at cloudy day adjustment irrigation times and intensity, obtains high-quality Pasania cuspidata nursery stock.
Claims (4)
1. one kind utilizes the method for Pasania cuspidata softwood cutting propagation, it is characterized in that: after comprising cutting bed preparation, cuttings acquisition and processing, cuttage, cuttage, manage operation, utilize the cuttage in Seedlings nursery of Pasania cuspidata spray, by controlling illumination in Seedlings nursery, relative moisture and cutting medium water content, obtain Pasania cuspidata nursery stock, its operating procedure is as follows:
(1), cutting bed prepares:
(1) cutting bed: select leeward on the sunny side, the place of good water permeability builds outdoor cutting bed, cutting bed is long and wide is 10 ~ 20 m × 1 ~ 1.2 m, cutting bed with stone or rough sand rebasing;
(2) cutting medium: using peat soil, red soil and coconut palm chaff as cutting medium, cutting medium is loaded in the nutritious bag of 8cm × 12cm, be closely placed in cutting bed; First 1 day of cuttage is that the potassium permanganate of 0.1 % is to matrix disinfection by concentration;
(2), cuttings acquisition and processing:
(1) cuttings collection: cuttings is captured in South China all can arrange cuttage the whole year, gathers the green branch of semi-lignified as cuttage cuttings;
(2) prune cuttings: the single leaf simple bud cuttings fringe bar of semi-lignified being cut into 8 ~ 10 cm, lower end angle, bud is close in upper end, flat mouth, ties with rubber band or thin cotton cord;
(3) disinfect: cuttings is neatly discharged, soak with 0.5 % carbendazim, sterilization 15 ~ 20 min, taking-up clear water rinses stand-by;
(4) HORMONE TREATMENT: indole-3-butyric acid (IBA) and methyl α-naphthyl acetate (NAA) are mixed with hormone mixed solution, inserts cuttings lower end 3 ~ 5 cm in hormone mixed solution, soaks 1 h, pulls out to be slightly used as that 2 ~ 3 min are air-dry carries out cuttage immediately;
(3), cuttage:
(1) matrix is watered: before cuttage, is evenly watered by cutting medium, makes cutting medium moisture content reach 67 ~ 73 %;
(2) cuttage: be ready in the nutritious bag of cutting medium by being inserted into through hormone-treated cuttings, every bag of cuttings, cuttings face of blade upward, the cuttage degree of depth is 3 ~ 5 cm, then by the cutting medium compacting around cuttings, water hormone mixed solution residual on 1 permeable double flushing blade immediately, make cutting medium moisture content reach 100 %, make cuttings and cutting medium combine closely simultaneously;
(4), manage after cuttage:
(1) build shade: plug the simple and easy shed of thin bamboo strips used for weaving built in both sides, seedbed, cover overlay, then add lid layer 60 % shade net, if Seedlings nursery itself is provided with overhead cool canopy, then need not add a cover shade net, evenly cover pressure transparent plastic film edge with earth under seedbed, prevent seedbed water loss;
(2) disease control: sprayed once sterilizing every 7 days with carbendazim 1000 times of liquid after cuttage, prevent from growing miscellaneous bacteria, sprays and selects to carry out after the sun sets, water spray was stopped before half an hour to morning sunrise before spray medicine, after spray medicine, overlay is arranged, continue to keep sternly sealing state;
(3) manage after taking root: after cuttage, namely the cuttings of 60 days 90 % takes root, now overlay is removed, 60 ~ 70 % are kept to shelter from heat or light, prevent from being exposed to the sun, manage until go out garden in conventional liquid manure mode, frequency of watering, to ensure cutting medium moisture content at 80 more than % for principle, according to fine day, the actual conditions at cloudy day adjustment irrigation times and intensity, obtains high-quality Pasania cuspidata nursery stock.
2. a kind of method utilizing Pasania cuspidata softwood cutting propagation according to claim 1, is characterized in that: the formula material volume ratio proportioning of described cutting medium: peat soil: red soil: coconut palm chaff is 2: 2: 1, mixes for subsequent use; Described coconut palm chaff is the coconut palm chaff fully become thoroughly decomposed routinely.
3. a kind of method utilizing Pasania cuspidata softwood cutting propagation according to claim 1, is characterized in that: described cuttings collection to gather on scion-seed tree 10 ~ 15 cm robust growth without damage by disease and insect, the green branch of semi-lignified as cuttage cuttings.
4. a kind of method utilizing Pasania cuspidata softwood cutting propagation according to claim 1, it is characterized in that: the compound method of described hormone mixed solution is: first use the medicinal alcohol of 95 % indole-3-butyric acid (IBA) and methyl α-naphthyl acetate (NAA) to be dissolved respectively, then adding distil water is configured to the concentrate that concentration is 10 g/L; Volume ratio by IBA: NAA=5: 1 measures two kinds of solution respectively, adds the distilled water constant volume of 22/3 times, be configured to the hormone mixed solution of IBA 1000mg/L+NAA 200mg/L after mixing.
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