CN111684974A - Grafting rejuvenation method for aged peony - Google Patents
Grafting rejuvenation method for aged peony Download PDFInfo
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- CN111684974A CN111684974A CN202010392116.XA CN202010392116A CN111684974A CN 111684974 A CN111684974 A CN 111684974A CN 202010392116 A CN202010392116 A CN 202010392116A CN 111684974 A CN111684974 A CN 111684974A
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- peony
- seedlings
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- old
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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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- 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
- A01G2/00—Vegetative propagation
- A01G2/30—Grafting
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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
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
Abstract
The invention discloses a grafting rejuvenation method of old peony, which comprises root grafting and overground bridging of the peony, wherein the root grafting comprises the following steps: firstly, ditching and leaking roots; digging an annular groove around the tree peony trunk at one side position within about 1 m away from the tree peony trunk, and exposing partial root systems of the tree peony; step two, inarching and increasing roots; after the annular rejuvenation ditch is dug, part of root systems are exposed, diseased roots and bad roots are cut off, and then 2-3-year-old peony seedlings with the section diameter of 8-15mm and the length of 15cm are butted on the exposed root systems of the old peonies.
Description
Technical Field
The invention belongs to the technical field of plant rejuvenation, and particularly relates to a rejuvenation method of old peony.
Background
The peony begins to decline when the plant age of the peony is 20-30 years in the cultivation process, and with the increase of the plant age, the problems of decline of growth vigor, reduction of height, reduction of flower amount and gradual reduction of ornamental value often occur. The decline of the old peony is caused by the combined action of internal and external factors, and the poor growth of root systems and the reduction of absorption capacity are main reasons causing the weak growth trend and the reduction of ornamental value of the old peony. Therefore, the method has good practical significance for grafting and rejuvenating the old peony, delaying the aging process of the peony and improving the ornamental value of the peony.
Disclosure of Invention
In order to solve the technical problems, the invention provides a grafting rejuvenation method for old peonies, which delays the decay process of old peonies by measures of underground root grafting and overground bridging and is beneficial to prolonging the ornamental life of the peonies.
The technical scheme adopted by the invention is as follows: a grafting rejuvenation method for old peonies comprises root grafting and overground bridging of the peonies, wherein the root grafting comprises the following steps:
firstly, ditching and leaking roots; digging an annular groove around the tree peony trunk at one side position within about 1 m away from the tree peony trunk, and exposing partial root systems of the tree peony;
step two, inarching and increasing roots; after the annular rejuvenation ditch is dug, part of root systems are exposed, diseased roots and bad roots are cut off, and then 2-3-year-old peony seedling strip-shaped roots with the section diameter of 8-15mm and the length of 15cm are abutted to the exposed root systems of old peonies;
and step three, digging an annular ditch around the trunk at the other side within a range of about 1 meter away from the trunk of the peony in the autumn peony dormancy stage of the next year, and exposing the root system at the other side of the peony.
Step four, repeating the operation of the step two to complete the grafting work of the root of the peony;
the ground bridging mode comprises the following steps:
s1, selecting rootstocks; selecting a peony seedling plant as a material;
s2, planting seedlings; planting 3-5 seedlings around the main stem in a scattered manner at a proper position which is about 20-40 cm away from the main stem of the peony;
s3, bridging and rooting; bridging the peony seedlings and the trunk and outer skins of the old peonies together;
s4, cutting an anvil; after the grafted part is healed, cutting off the seedling branches above the grafted part, and reserving the branches and the root systems of the seedlings below the interface;
s5, bud picking; after the bridge is survived, the sprouts of the branches and the roots of the seedlings below the joints are timely wiped off, and the nutrition obtained by the roots of the seedlings is completely conveyed to the old peony.
And in the second step, after the strip-shaped roots of the peony seedlings are close to the exposed root systems of the old peonies, burying the annular ditch, watering the peonies grafted at the roots, wherein the watering amount is 1/3-1/4 of the usual watering amount, and performing rain-sheltering cultivation within one month.
In the S1, the plant age of the seedlings is 4-6 years, the height of the plants is more than 60 cm, and the selection aims at small specifications of seedlings below 4 years, poor root systems, hard wood of the seedlings above 6 years, difficult cutting during grafting and increased difficulty in bridging operation.
In the first step and the step S2, the time for ditching, root leaking and seedling planting is the autumn peony dormancy period.
The first step aims to expose the root system of the peony so as to enable the root system to be in close contact with the strip-shaped roots of the peony seedlings, and the operation is convenient; secondly, the method aims to cut off diseased roots and bad roots of old peonies and reduce unnecessary consumption.
The purpose of selecting peony seedlings in S1 is that the seedlings are formed by seed germination and have the characteristics of complete and developed root systems, strong vitality, high plasticity, long service life and the like; the cultivation of the seedling accords with the natural growth and development rule of the tree, and the seedling grows neatly and robustly by adopting scientific seedling cultivation technical measures; the seedling cultivation can obtain more plants in a smaller area in a shorter time, and the method is simple, low in cost and suitable for large-scale professional production.
S2 seedlings are planted around the trunk in a scattered manner at a proper position 20-40 cm away from the trunk of the peony, because the distance is less than 20 cm, the roots and stems of the old peony are damaged in the planting process due to too small space, and when the distance is more than 40 cm, the seedlings are bent greatly and can be connected with the old peony, so that the difficulty is increased; the distance of 20-40 cm does not hurt the roots and stems of the old peony, reduces the difficulty of inarching and ensures simple and convenient operation.
The S4 cuts the branches of the seedlings above the grafting position, so that after bridging, the old peony can better absorb nutrition by using the root systems of the seedlings, and if the branches are not cut, the nutrition absorbed by the root systems of the seedlings can be conveyed to the old peony, and the old peony cannot be renewed and rejuvenated.
The purpose that S5 timely removes sprouts at branches and rhizomes of seedlings below a connector is to ensure that all nutrients obtained by roots of the seedlings are conveyed to old peonies.
The invention has the beneficial effects that:
the method is simple and convenient to operate and remarkable in effect, and by adopting the root grafting and overground bridging modes, the growth vigor of the old peony is enhanced, the crown width is steadily increased, the flower quantity is increased year by year, the decay process of the old peony is delayed, and the ornamental life period of the old peony is prolonged.
Drawings
FIG. 1 is a schematic representation of the present invention at S1, S2;
FIG. 2 is a schematic representation of S3 of the present invention;
FIG. 3 is a schematic view of S4 and S5 of the present invention.
The labels in the figure are: 1. and (5) seedling.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.
A grafting rejuvenation method for old peonies comprises root grafting and overground bridging of the peonies, wherein the root grafting comprises the following steps:
firstly, ditching and leaking roots; digging an annular groove around the tree peony trunk at one side position within about 1 m away from the tree peony trunk, and exposing partial root systems of the tree peony;
step two, inarching and increasing roots; after the annular rejuvenation ditch is dug, part of root systems are exposed, diseased roots and damaged roots of old peonies are cut off, and then 1 strip-shaped root of a 2-3-year-old peony seedling with the section diameter of 8-15mm and the length of 15cm is abutted to an exposed root system of the old peonies;
and step three, digging an annular ditch around the trunk at the other side within a range of about 1 meter away from the trunk of the peony in the autumn peony dormancy stage of the next year, and exposing the root system at the other side of the peony.
Step four, repeating the operation of the step two to complete the grafting work of the root of the peony;
the ground bridging mode comprises the following steps:
s1, selecting rootstocks; selecting a peony seedling 1 plant as a material;
s2, planting the seedling 1; 3-5 seedlings are planted around the main stem in a scattered manner at a position which is about 20-40 cm away from the main stem of the peony;
s3, bridging and rooting; bridging the main trunk and outer skin of the peony seedling 1 and old peony together;
s4, cutting an anvil; after the grafted part is healed, cutting off the branches of the seedling 1 above the grafted part, and reserving the branches and the root systems of the seedling 1 below the interface;
s5, bud picking; after the bridge is survived, the sprouts at the branches and the roots of the seedlings 1 below the joints are timely wiped off, and the nutrients obtained by the 1 root systems of the seedlings are completely conveyed to the old peony.
And in the second step, after 1 strip-shaped root of the peony seedling is close to an exposed root system of old peony, burying the annular ditch, watering the peony grafted at the root, wherein the watering amount is 1/3-1/4 of the usual watering amount, and performing rain-sheltering cultivation within one month.
In the S1, the plant age of the seedling 1 is 4-6 years, and the plant height is more than 60 cm, so the selection aims at small specification of the seedling 1 below 4 years, poor root system, hard wood of the seedling 1 above 6 years, difficult cutting during grafting and increased difficulty of inarching operation.
In the first step and the step S2, the time for ditching, root leaking and seedling 1 planting is the autumn peony dormancy period.
Claims (5)
1. A grafting rejuvenation method for old peony is characterized by comprising the following steps: the method comprises peony root grafting and overground bridging, wherein the root grafting comprises the following steps:
firstly, ditching and leaking roots; digging an annular groove around the tree peony trunk at one side position within about 1 m away from the tree peony trunk, and exposing partial root systems of the tree peony;
step two, inarching and increasing roots; after the annular rejuvenation ditch is dug, part of root systems are exposed, diseased roots and bad roots are cut off, and then 2-3-year-old peony seedling strip-shaped roots with the section diameter of 8-15mm and the length of 15cm are abutted to the exposed root systems of old peonies;
and step three, digging an annular ditch around the trunk at the other side within a range of about 1 meter away from the trunk of the peony in the autumn peony dormancy stage of the next year, and exposing the root system at the other side of the peony.
2. Step four, repeating the operation of the step two to complete the grafting work of the root of the peony;
the ground bridging mode comprises the following steps:
s1, selecting rootstocks; selecting a peony seedling plant as a material;
s2, planting seedlings; planting 3-5 seedlings around the main stem in a scattered manner at a proper position which is about 20-40 cm away from the main stem of the peony;
s3, bridging and rooting; bridging the peony seedlings and the trunk and outer skins of the old peonies together;
s4, cutting an anvil; after the grafted part is healed, cutting off the seedling branches above the grafted part, and reserving the branches and the root systems of the seedlings below the interface;
s5, bud picking; after the bridge is survived, the sprouts of the branches and the roots of the seedlings below the joints are timely wiped off, and the nutrition obtained by the roots of the seedlings is completely conveyed to the old peony.
3. The grafting rejuvenation method for aged peony according to claim 1, characterized in that: and step two, after the strip-shaped roots of the peony seedlings are close to the exposed root systems of the old peonies, burying the annular ditch, watering the peony grafted at the root, wherein the watering amount is 1/3-1/4 of the usual watering amount, and performing rain-sheltering cultivation within one month.
4. The grafting rejuvenation method for aged peony according to claim 1, characterized in that: in S1, the plant age of the seedlings is 4-6 years, the plant height is more than 60 cm, and the selection aims at small specifications of seedlings below 4 years, poor root systems, hard wood of seedlings above 6 years, difficult cutting during grafting and difficult bridging operation.
5. The grafting rejuvenation method for aged peony according to claim 1, characterized in that: in the first step and the step S2, the time for ditching, root leaking and seedling planting is the autumn peony dormancy period.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102415281A (en) * | 2010-09-28 | 2012-04-18 | 杜丽英 | Inarching and root increasing grafting method for plant |
CN103583211A (en) * | 2013-11-13 | 2014-02-19 | 石家庄市神州花卉研究所 | Mutual assistance symbiosis minimally-invasive inarching method for wild alpine rhododendron ancient stumps and seedlings |
CN106258511A (en) * | 2016-08-10 | 2017-01-04 | 樊宝敏 | A kind of engrafting method of ancient tree rejuvenating |
CN109197327A (en) * | 2018-09-13 | 2019-01-15 | 江苏省林业科学研究院 | A kind of anvil tree bridge is abutted against the method for ancient and well-known trees |
CN109832025A (en) * | 2019-04-17 | 2019-06-04 | 曹德 | A method of making rejuvenation of ancient tree using being abutted against |
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- 2020-05-11 CN CN202010392116.XA patent/CN111684974A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102415281A (en) * | 2010-09-28 | 2012-04-18 | 杜丽英 | Inarching and root increasing grafting method for plant |
CN103583211A (en) * | 2013-11-13 | 2014-02-19 | 石家庄市神州花卉研究所 | Mutual assistance symbiosis minimally-invasive inarching method for wild alpine rhododendron ancient stumps and seedlings |
CN106258511A (en) * | 2016-08-10 | 2017-01-04 | 樊宝敏 | A kind of engrafting method of ancient tree rejuvenating |
CN109197327A (en) * | 2018-09-13 | 2019-01-15 | 江苏省林业科学研究院 | A kind of anvil tree bridge is abutted against the method for ancient and well-known trees |
CN109832025A (en) * | 2019-04-17 | 2019-06-04 | 曹德 | A method of making rejuvenation of ancient tree using being abutted against |
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Application publication date: 20200922 |