CN104904545A - Method for high-density cutting seedling of twigs of Lagerstroemia indica Pink Velour - Google Patents
Method for high-density cutting seedling of twigs of Lagerstroemia indica Pink Velour Download PDFInfo
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- CN104904545A CN104904545A CN201510300907.4A CN201510300907A CN104904545A CN 104904545 A CN104904545 A CN 104904545A CN 201510300907 A CN201510300907 A CN 201510300907A CN 104904545 A CN104904545 A CN 104904545A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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Abstract
The invention provides a method for high-density cutting seedling of twigs of Lagerstroemia indica Pink Velour. The method comprises the following steps: (1) selecting cutting medium; (2) selecting cutting slips; (3) cutting; (4) managing after cutting; (5) hardening seedlings and transplanting. Compared with the prior art, the method provided by the invention not only has the advantages of simple condition, easy operation and low reproductive cost in the prior art, but also can increase the average root length of cut lagerstroemia indica obviously and can greatly increase the survival rate of transplanted seedlings.
Description
Technical field
The present invention relates to a kind of velvet crape myrtle high density epicormic branch cutting method, belong to trees asexual reproduction method field.
Background technology
Velvet crape myrtle (Lagerstroemia indica ' Pink Velour ') is the upright dungarunga of fallen leaves, high 8-10m, hat width 10-12m, the Lythraceae Lagerstroemia crape myrtle new varieties introducing China from the U.S., tree-shaped orthostatic strong (side shoot is oblique 45 degree and upwards grows) is shown after China's introducing and planting, (young leaves is light red for leaf look uniqueness, Lao Ye is blackish green), pattern noble quality (flower rose), florescence overlength (south can reach 150-180 days), flower amount especially big (panicle is the longest reaches 50cm), flower has fragrance (flower delicate fragrance is simple and elegant), very fast (the root system hypertrophy of growth, in Jiangsu, annual leading thread can grow 1.5-2.1cm) and the advantage such as extremely low temperature resistant (ability-20 DEG C of low temperature).Velvet crape myrtle Ji Guan flower, sight leaf are in one, be the best-selling crape myrtle kind of the U.S., after introducing China, extensively isolated planting or group planting in afforestation, also can make stub or potted landscape, be the excellent ornamental plant of afforesting and beautifying environment and floriculture at home, market demand is very large.
Vegetative propagation can keep the merit of elite stand, and the asexual reproduction method of U.S. velvet crape myrtle is cultivated in a organized way, grafting and cuttage etc.Wherein tissue culture technique requires high, complicated operation, and production cost is expensive; Propagation by grafiting labor inputs is large, and also will cultivate the stock of more than 2 years, and cottage propagation implementation condition is easy, processing ease, reproductive-cost is lower.
At present, crape myrtle cuttage raise seedling technique of the prior art, has condition easy, processing ease, the advantage that reproductive-cost is low, but also there are some problems, as average root length and the problem such as survival rate is undesirable.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of velvet crape myrtle high density epicormic branch cutting method.
Technical scheme: for achieving the above object, the invention provides a kind of velvet crape myrtle high density epicormic branch cutting method, comprises the following steps:
(1) cutting medium is selected: select the Jiang Sha after process as cutting medium, and the husky thickness in laying river, seedbed is 25cm;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttage after root-growing agent process;
(3) cuttage: cutting density is 620-700 strain/m
2, the cuttage degree of depth is 2/3rds of branch total length;
(4) manage after cuttage: after cuttage on booth covered with sunshade net, ventilated by the folding and unfolding of sunshade net and water spray moisturizing and make temperature control at 20-35 DEG C, humid control at 70-85%, and carries out the extermination of disease and insect pest;
(5) hardening, transplanting: cuttage started to take root after 20 days, hardening in transplantation of seedlings to nutritive cube of taking root after 40 days, was transplanted to land for growing field crops by nutrition pot seedling after 3 months.
As preferably, the thin Jiang Sha of Jiang Shawei in described step (1), diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections.
Preferred as another kind, in described step (2), cuttings selects 2-3 bud, cutting length 6-8cm, and the healthy and strong branch between cutting section 3-5mm, base portion is whittled into level and smooth inclined-plane.
As preferably, in described step (2), root-growing agent is methyl α-naphthyl acetate (NAA) solution of 1000-2000mg/L.
Preferred as another kind, in described step (3), after cuttage, spray carbendazim 600 times of liquid.
Preferred as another kind, in described step (4), sunshade net is in the sunshade rate in June more than 75%, and sunshade in July rate reaches 80-85%.
Preferred as another kind, the seedling medium of described step (5) Middle nutrition alms bowl is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, uses after spraying the carbendazol of 800 times while stirring.
The extermination of disease and insect pest described in the inventive method step (4) adopted carbendazim 800 times of liquid, tpn or thiophanate methyls 600 times of liquid to carry out foliage spray prevention and elimination of disease and pests every 6-8 days.
Hardening described in the inventive method step (5), adopts the urea of 0.03% and sprays once, to strengthen rich water quality management for the every 5-7 of potassium dihydrogen phosphate mixed liquor days in process; Spray once with the Baijunlings of 600 times or the every 5-7 of tpn days, to carry out disease control.
The present invention is directed to the characteristic of velvet crape myrtle, utilization is ventilated and water permeability is good Jiang Sha, greenhouse facility and seedling medium carry out epicormic branch cutting, by the use of specific root-growing agent, in conjunction with specific cutting density and the degree of depth, can significantly increase average root long, significantly improve survival rate, high-quality velvet crape myrtle can be bred effectively in enormous quantities.The inventive method is easy to operation, has that cost is low, technical requirement is simple, the advantage such as easily to apply.
Beneficial effect: relative to prior art, crape myrtle epicormic branch cutting method of the present invention, the condition not only with prior art is easy, processing ease, the advantage that reproductive-cost is low, but also the average root that significantly can increase cuttage crape myrtle is long, significantly improves transplanted seedling survival rate.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1
(1) cutting medium is selected: select thin Jiang Sha as cutting medium, diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections, and it is 25cm that the husky thickness in thin river is laid in seedbed;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttings selects 2 buds, cutting length 6cm, the healthy and strong branch of cutting section 3mm, base portion is whittled into level and smooth inclined-plane, is stained with rear cuttage by naphthalene acid solution (NAA) speed of 1000mg/L;
(3) cuttage: cutting density is 620 strains/m
2, the cuttage degree of depth is 2/3rds of branch total length, sprays carbendazim 600 times of liquid after cuttage;
(4) manage after cuttage: after cuttage on booth covered with sunshade net, temperature is made to control at 20 DEG C by the folding and unfolding of sunshade net with water spray moisturizing ventilation, humid control is 70%, sunshade net in the sunshade rate in June more than 75%, sunshade in July rate reaches 80%, and is carry out foliage spray prevention and elimination of disease and pests every 6 days employing carbendazim, 800 times of liquid, tpn 600 times of liquid;
(5) hardening, transplanting: cuttage started to take root after 20 days, to take root after 40 days hardening in transplantation of seedlings to nutritive cube, the seedling medium of nutritive cube is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, use after spraying the carbendazol of 800 times while stirring, the urea of 0.03% and potassium dihydrogen phosphate mixed liquor is adopted to spray once, to strengthen rich water quality management for every 5 days in hardening process; Within every 5 days, spray once, to carry out disease control with the Baijunlings of 600 times.After 3 months, nutrition pot seedling is transplanted to land for growing field crops.
Embodiment 2
(1) cutting medium is selected: select thin Jiang Sha as cutting medium, diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections, and it is 25cm that the husky thickness in thin river is laid in seedbed;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttings selects 3 buds, cutting length 8cm, the healthy and strong branch of cutting section 5mm, base portion is whittled into level and smooth inclined-plane, is stained with rear cuttage by naphthalene acid solution (NAA) speed of 2000mg/L;
(3) cuttage: cutting density is 700 strains/m
2, the cuttage degree of depth is 2/3rds of branch total length, sprays carbendazim 600 times of liquid after cuttage.；
(4) manage after cuttage: after cuttage on booth covered with sunshade net, temperature is made to control at 35 DEG C by the folding and unfolding of sunshade net with water spray moisturizing ventilation, humid control is 85%, sunshade net in the sunshade rate in June more than 75%, sunshade in July rate reaches 85%, and is carry out foliage spray prevention and elimination of disease and pests every 8 days employing carbendazim, 800 times of liquid, thiophanate methyl 600 times of liquid;
(5) hardening, transplanting: cuttage started to take root after 20 days, to take root after 40 days hardening in transplantation of seedlings to nutritive cube, the seedling medium of nutritive cube is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, use after spraying the carbendazol of 800 times while stirring, the urea of 0.03% and potassium dihydrogen phosphate mixed liquor is adopted to spray once, to strengthen rich water quality management for every 7 days in hardening process; Within every 7 days, spray once, to carry out disease control with the tpns of 600 times.After 3 months, nutrition pot seedling is transplanted to land for growing field crops.
Embodiment 3
(1) cutting medium is selected: select thin Jiang Sha as cutting medium, diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections, and it is 25cm that the husky thickness in thin river is laid in seedbed;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttings selects 2 buds, cutting length 7cm, the healthy and strong branch of cutting section 4mm, base portion is whittled into level and smooth inclined-plane, is stained with rear cuttage by naphthalene acid solution (NAA) speed of 1500mg/L;
(3) cuttage: cutting density is 660 strains/m
2, the cuttage degree of depth is 2/3rds of branch total length, sprays carbendazim 600 times of liquid after cuttage.；
(4) manage after cuttage: after cuttage on booth covered with sunshade net, temperature is made to control at 27 DEG C by the folding and unfolding of sunshade net with water spray moisturizing ventilation, humid control is 78%, sunshade net in the sunshade rate in June more than 75%, sunshade in July rate reaches 82%, and is carry out foliage spray prevention and elimination of disease and pests every 7 days employing carbendazim, 800 times of liquid, tpn 600 times of liquid;
(5) hardening, transplanting: cuttage started to take root after 20 days, to take root after 40 days hardening in transplantation of seedlings to nutritive cube, the seedling medium of nutritive cube is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, use after spraying the carbendazol of 800 times while stirring, the urea of 0.03% and potassium dihydrogen phosphate mixed liquor is adopted to spray once, to strengthen rich water quality management for every 6 days in hardening process; Within every 6 days, spray once, to carry out disease control with the tpns of 600 times.After 3 months, nutrition pot seedling is transplanted to land for growing field crops.
Embodiment 4
(1) cutting medium is selected: select thin Jiang Sha as cutting medium, diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections, and it is 25cm that the husky thickness in thin river is laid in seedbed;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttings selects 3 buds, cutting length 7cm, healthy and strong branch between cutting section 4mm, base portion is whittled into level and smooth inclined-plane, is stained with rear cuttage by naphthalene acid solution (NAA) speed of 1200mg/L;
(3) cuttage: cutting density is 640 strains/m
2, the cuttage degree of depth is 2/3rds of branch total length, sprays carbendazim 600 times of liquid after cuttage.；
(4) manage after cuttage: after cuttage on booth covered with sunshade net, temperature is made to control at 25 DEG C by the folding and unfolding of sunshade net with water spray moisturizing ventilation, humid control is 75%, sunshade net in the sunshade rate in June more than 75%, sunshade in July rate reaches 81%, and is carry out foliage spray prevention and elimination of disease and pests every 7 days employing carbendazim, 800 times of liquid, tpn 600 times of liquid;
(5) hardening, transplanting: cuttage started to take root after 20 days, to take root after 40 days hardening in transplantation of seedlings to nutritive cube, the seedling medium of nutritive cube is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, use after spraying the carbendazol of 800 times while stirring, the urea of 0.03% and potassium dihydrogen phosphate mixed liquor is adopted to spray once, to strengthen rich water quality management for every 6 days in hardening process; Within every 6 days, spray once, to carry out disease control with the tpns of 600 times.After 3 months, nutrition pot seedling is transplanted to land for growing field crops.
Embodiment 5
(1) cutting medium is selected: select thin Jiang Sha as cutting medium, diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections, and it is 25cm that the husky thickness in thin river is laid in seedbed;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttings selects 2 buds, cutting length 7cm, healthy and strong branch between cutting section 7mm, base portion is whittled into level and smooth inclined-plane, is stained with rear cuttage by naphthalene acid solution (NAA) speed of 1800mg/L;
(3) cuttage: cutting density is 680 strains/m
2, the cuttage degree of depth is 2/3rds of branch total length, sprays carbendazim 600 times of liquid after cuttage.；
(4) manage after cuttage: after cuttage on booth covered with sunshade net, temperature is made to control at 30 DEG C by the folding and unfolding of sunshade net with water spray moisturizing ventilation, humid control is 80%, sunshade net in the sunshade rate in June more than 75%, sunshade in July rate reaches 84%, and is carry out foliage spray prevention and elimination of disease and pests every 7 days employing carbendazim, 800 times of liquid, tpn 600 times of liquid;
(5) hardening, transplanting: cuttage started to take root after 20 days, to take root after 40 days hardening in transplantation of seedlings to nutritive cube, the seedling medium of nutritive cube is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, use after spraying the carbendazol of 800 times while stirring, the urea of 0.03% and potassium dihydrogen phosphate mixed liquor is adopted to spray once, to strengthen rich water quality management for every 6 days in hardening process; Within every 6 days, spray once, to carry out disease control with the Baijunlings of 600 times.After 3 months, nutrition pot seedling is transplanted to land for growing field crops.
Experimental example cuttage and seedling culture method root length of the present invention and survival rate are investigated
Select the velvet crape myrtle cuttings of same batch, stochastic averagina is divided into 5 groups, is respectively contrast 1 group, contrasts 2 groups and embodiment 3 groups, embodiment 4 groups, embodiment 5 groups.
Contrasting 1 group according to the embodiment of the present invention 3 method, is 750 strains/m unlike cutting density
2, the cuttage degree of depth is that branch total length 1/2nd carries out cuttage and seedling culture;
Contrast 2 groups according to the embodiment of the present invention 3 method, step (2) terminate rear use 1500mg/L heteroauxin solution speed be stained with after cuttage again, then carry out cuttage and seedling culture;
Embodiment 3 groups, embodiment 4 groups and embodiment 5 groups carry out cuttage and seedling culture according to the embodiment of the present invention 3,4 and 5 method respectively.
After transplanting, the management method of each group is all identical with external environment, investigates average root length and the survival rate of each group, the results are shown in following table 1
Result investigated by the table 1 respectively rear average root length of group cuttage and seedling culture method transplanting and survival rate
Can be obtained by upper table 1 result, compared with contrast 1 group, namely compare with the cuttage and seedling culture method of the degree of depth with different cutting density, after the embodiment of the present invention 3, embodiment 4 and embodiment 5 seedling-cultivating method are transplanted, the average root length of velvet crape myrtle and survival rate are significantly increased.
In addition, compared with contrast 2 groups, namely compared with the seedling-cultivating method through the process of heteroauxin root-growing agent, the embodiment of the present invention 3, embodiment 4 and embodiment 5 seedling-cultivating method, the velvet crape myrtle after transplanting, average root length and survival rate are also significantly increased.
Claims (7)
1. a velvet crape myrtle high density epicormic branch cutting method, is characterized in that, comprise the following steps:
(1) cutting medium is selected: select the Jiang Sha after process as cutting medium, and the husky thickness in laying river, seedbed is 25cm;
(2) cuttings is selected: in 6 months, the last ten-days period select raw healthy and strong then and without the semi-lignified branch of damage by disease and insect as cuttings, cuttage after root-growing agent process;
(3) cuttage: cutting density is 620-700 strain/m
2, the cuttage degree of depth is 2/3rds of branch total length;
(4) manage after cuttage: after cuttage on booth covered with sunshade net, ventilated by the folding and unfolding of sunshade net and water spray moisturizing and make temperature control at 20-35 DEG C, humid control at 70-85%, and carries out the extermination of disease and insect pest;
(5) hardening, transplanting: cuttage started to take root after 20 days, hardening in transplantation of seedlings to nutritive cube of taking root after 40 days, was transplanted to land for growing field crops by nutrition pot seedling after 3 months.
2. velvet crape myrtle high density epicormic branch cutting method according to claim 1, it is characterized in that, the thin Jiang Sha of Jiang Shawei in described step (1), diameter is 0.35-0.25mm, uses after adopting 58% metalaxyl-mancozeb wettable powder, 1000 times of solution disinfections.
3. velvet crape myrtle high density epicormic branch cutting method according to claim 1, it is characterized in that, in described step (2), cuttings selects 2-3 bud, cutting length 6-8cm, healthy and strong branch between cutting section 3-5mm, base portion is whittled into level and smooth inclined-plane.
4. velvet crape myrtle high density epicormic branch cutting method according to claim 1, is characterized in that, in described step (2), root-growing agent is the naphthalene acid solution of 1000-2000mg/L.
5. velvet crape myrtle high density epicormic branch cutting method according to claim 1, is characterized in that, in described step (3), sprays carbendazim 600 times of liquid after cuttage.
6. velvet crape myrtle high density epicormic branch cutting method according to claim 1, is characterized in that, in described step (4), sunshade net is in the sunshade rate in June more than 75%, and sunshade in July rate reaches 80-85%.
7. velvet crape myrtle high density epicormic branch cutting method according to claim 1, it is characterized in that, the seedling medium of described step (5) Middle nutrition alms bowl is 1/3 peat soil+1/3 yellow soil+1/3 vermiculite, uses after spraying the carbendazol of 800 times while stirring.
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| CN107047195A (en) * | 2017-04-26 | 2017-08-18 | 江苏农林职业技术学院 | A kind of shellfish widens rose camellia epicormic branch cutting method |
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| CN107896777A (en) * | 2017-11-16 | 2018-04-13 | 黄财权 | A kind of crape myrtle seedling refrigeration and high temperature season method for planting |
| CN110140535A (en) * | 2019-02-01 | 2019-08-20 | 海南省农业科学院热带园艺研究所 | A kind of mao of calyx crape myrtle seedling rapid propagation method |
| CN111567242A (en) * | 2020-05-22 | 2020-08-25 | 安庆师范大学 | High-density twig cutting seedling method for crape myrtle velvet |
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| CN107821137A (en) * | 2017-12-11 | 2018-03-23 | 成都农业科技职业学院 | A kind of crape myrtle root system cuttage and seedling culture propagation method |
| CN110140535A (en) * | 2019-02-01 | 2019-08-20 | 海南省农业科学院热带园艺研究所 | A kind of mao of calyx crape myrtle seedling rapid propagation method |
| CN111567242A (en) * | 2020-05-22 | 2020-08-25 | 安庆师范大学 | High-density twig cutting seedling method for crape myrtle velvet |
| CN111567242B (en) * | 2020-05-22 | 2022-03-18 | 安庆师范大学 | High-density twig cutting seedling method for crape myrtle velvet |
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