CN107396761B - Method for branch fixing and anti-breaking for sprout inhibition of orange top grafting and variety changing pile retaining - Google Patents
Method for branch fixing and anti-breaking for sprout inhibition of orange top grafting and variety changing pile retaining Download PDFInfo
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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
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- A01G2/00—Vegetative propagation
- A01G2/30—Grafting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
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Abstract
The invention provides a medical immersion paper for germination inhibition of a reserved pile in high-grafting and replacement of citrus, wherein a liquid medicine used by the medical immersion paper is a solution containing 5000-15000 mg/kg of sodium naphthalene acetate and 900-1500 mg/kg of glufosinate-ammonium. The invention also provides a method for inhibiting pile-remaining sprout after high-grafting and seed-changing of citrus by adopting the medicine-impregnated paper, which is used for fixing scion shoots and preventing the scion shoots from being broken by wind, rain and the like. The invention has no adverse effect on citrus trees, is simple and easy to implement, has low cost and is convenient for practical popularization and use of citrus production.
Description
Technical Field
The invention relates to a method for retaining piles to inhibit sprouts after high-grafting and seed changing of citrus to fix scion shoots and prevent the scion shoots from being broken by wind, rain and the like, and a chemical dipping paper adopted by the method.
Technical Field
China is the biggest orange producing and consuming country in the world, the national orange area is 3770 ten thousand mu in 2015, the yield is 3660 ten thousand tons, and orange production becomes an important poverty-removing and enriching industry in southern rural mountain areas. However, about 80% of citrus in China is medium-maturing varieties which are mature in 10-12 months, and the harvesting and marketing period is concentrated, so that the problem of difficult seasonal fruit selling is serious day by day, and the improvement of the industrial benefit is restricted. In order to solve the problem, in recent years, variety updating is vigorously promoted in each citrus producing area, and middle-maturing citrus varieties are replaced by early-maturing varieties which mature 10 months ago, or late-maturing varieties which mature 1-5 months next year, or high-quality middle-maturing new varieties. The first method is to cut or dig off the original variety and then cultivate the new variety of nursery stock; the second method is to graft the original species of trees at a high position and replace the original species of trees with a new species (called "top grafting and changing" for short). The first method is mainly used in citrus canker and Huanglong disease areas, such as Guangxi, Guangdong, Fujian, Yunnan, Jiangxi and Hunan; the second method is mainly used in the areas without canker and Huanglong diseases, such as Sichuan, Chongqing, Hubei, Shaanxi, etc. In citrus producing areas of Sichuan basin, in recent 30 years, most citrus gardens have been subjected to high grafting and seed changing for 3-4 times, and varieties are continuously updated, so that the citrus benefits of the producing areas are always listed in the national future. Therefore, high grafting and seed changing play an important role in citrus production in China.
The high grafting of citrus is mainly carried out on big trees, and the grafting position is usually carried out on big branches such as main branches, auxiliary main branches, side branches and the like, and sometimes also on main branches. Usually, the branch above the grafting bud position is removed (sawed off or cut off) in early spring, and 1-2 years after grafting, the branch tip (scion branch tip) grown from the grafting bud is not firmly healed because of the grafting opening, the growth amount of the scion branch tip is large, and the branch tip is easily broken or split from the grafting position when encountering wind and rain, so that high grafting and seed changing failure are caused. In order to solve the problem, the method adopted in the prior production is to insert bamboo, wood or other rods beside the scion branch tips and tie and fix the scion branch tips on the rods by ropes. However, because of the large number of grafting openings for high grafting, many rods need to be inserted beside the grafted tree, which is time-consuming, labor-consuming and expensive. The former attempts to leave a tree pile (hereinafter referred to as "pile") with the length of 30-60cm above the grafted bud of the high-grafting tree for binding and fixing the scion shoot, but a large number of shoots can be germinated on the pile, and the shoots need to be erased manually and repeatedly, so that the labor cost is high, and the germination and growth of the shoots can consume a large amount of nutrients stored in the tree body, so that the scion shoot is weak in growth, and the grafted bud can not germinate seriously. Therefore, the main obstacle of the stump of the high grafting tree is stump sprout tillering, and a new method for simply, conveniently and efficiently preventing stump sprout tillering and fixing scion shoot by using the stump is needed to be developed.
Disclosure of Invention
The invention aims to provide the medical impregnated paper for preventing sprouting of the high-grafting and replanting preserved piles of the citrus.
The first object of the present invention is achieved by:
the pile remaining germination inhibiting medicine impregnated paper is 0.1-0.2 mm in thickness and 30-70 cm in width; the liquid medicine is an aqueous solution containing 5000-15000 mg/kg of sodium naphthalene acetate and 900-1500 mg/kg of glufosinate-ammonium.
Specifically, the preparation method of the medicinal impregnated paper for restraining sprouting of the pile comprises the following steps: soaking paper with the thickness of 0.1-0.2 mm and the width of 30-70 cm in a liquid medicine containing 5000-15000 mg/kg sodium naphthaleneacetate and 900-1500 mg/kg glufosinate-ammonium, taking out after completely soaking, hanging the paper in an outdoor ventilation place for airing (no sunshine exposure, the same below), drying, recovering and storing for later use. The length of the paper is not limited, so that the paper is convenient to be soaked in a container containing the liquid medicine.
The above components are preferably: the thickness of the paper is 0.15mm, and the width is 50 cm; the content of the traditional Chinese medicine in the liquid medicine is as follows: 10000mg/kg sodium naphthaleneacetate +1200mg/kg glufosinate.
The paper is preferably kraft paper, and is common commercial kraft paper.
The sodium naphthylacetate has a chemical formula C12H9O2Na, purity requirement 95% above.
The glufosinate-ammonium is a herbicide and has the chemical name: 2-amino-4- [ hydroxy (methyl) phosphono group]Ammonium butyrate with molecular formula C5H15N2O4P。
The medicinal impregnated paper can effectively inhibit the generation of pile-retaining sprout tillers, and the breaking and damage resistance of grafted branch tips is improved.
The second purpose of the invention is to provide a specific method for fixing scion shoot by using the citrus high grafting seed changing pile bud retention. The second object of the present invention is achieved by:
the method for fixing the citrus scion shoot by using the medicine impregnated paper for pile retaining and sprouting inhibition comprises the following steps: the grafting time of the high grafting and changing of the citrus is selected as much as possible to be carried out in the next 8-10 months, or before spring germination, or immediately before germination, and the grafting time is selected as much as possible to be carried out on the main trunk or the thick branch forming an included angle of 50-90 degrees with the ground plane (namely, the grafting is carried out on the more upright branch so as to retain a pile to bind and fix the branch tip of the scion). The method comprises the following steps of (1) reserving piles and removing stocks (sawing stocks or shearing stocks, the same is applied below) for branches before or just after the grafted buds sprout, wherein the positions of the stocks are 50-60 cm above the grafted buds (the stocks of the grafted varieties with medium or weak growth potential can be shorter, and the stocks can be longer if the stocks of the grafted varieties are not longer), and a section of tree piles with the length of 50-60 cm is reserved above the grafted buds after the stocks are removed. Removing branches on the stump by using a tool, then, circularly peeling the stump for a complete circle by using a circular peeling knife with the width of 3-5 mm at a position 2-3 cm above the grafting bud, reaching the xylem during circular peeling, completely peeling off the cortex, and peeling off the xylem for 1-2 mm. The stump left above the girdling opening is the 'remained stump', the remained stump is tightly wound and bound for 2 circles by using the medicine impregnated paper, the outside of the remained stump is bound for 2 circles by using a commercially available black plastic film with the thickness of 0.02-0.05 mm or an opaque silver plastic film, and finally the plastic film is bound by using a rope or adhesive sticker, so that the remained stump is waterproof and lightproof; the pile after the treatment has no germination and growth of tillers, and after the second branch tip and the fourth branch tip of the scion are aged respectively, the scion branch tips are bound and fixed for one time respectively, namely, the soft durable rope is used for binding and fixing the scion branch tips on the pile twice, so that the scion branch tips are prevented from being broken by wind, rain and the like.
The invention relates to a grafting method of a citrus high-grafting and replanting tree, other field management methods after grafting and the like according to a conventional method.
The grafted branch tip in the invention refers to a branch tip formed by sprouting and growing of a grafted bud.
Advantageous effects
1. After the citrus is high-grafted and replanted, a section of stump (stump) is reserved above the grafting bud, the stump sprout is restrained, and the stump is used for binding and fixing scion branch tips to prevent the scion branch tips from being broken by wind, rain and the like. The stump of the orange high-grafting seed-changing tree treated by the method of the invention can not sprout (sprout tillers), can not grow, can not consume the stored nutrients of the tree body, and can not influence the germination and growth of the grafted bud.
2. The pile can be directly used for binding and fixing the scion branch tips, so that the cost of inserting rods beside the high-grafting tree for binding and fixing the scion branch tips is saved, the labor, the material resources and the financial resources are saved, and the labor intensity is reduced.
3. The method has no adverse effect on citrus trees, is simple and feasible, has low cost, and is convenient for popularization and use in agricultural practice.
4. The invention can efficiently inhibit and kill the remaining pile sprout tillers, the remaining pile can not generate any sprout tillers and can not grow, the remaining pile can be directly used for binding and fixing the scion branch tips, and the traditional complicated method that a plurality of rods are inserted beside a high-grafting seed changing tree and are used for binding and fixing the scion branch tips is replaced.
Detailed Description
The following examples are merely illustrative of the present invention.
The invention is further illustrated by the following examples, which are not intended to limit the invention thereto.
Example 1
A medicinal impregnated paper (medicinal impregnated paper 1) for preventing and treating pile-remained sprout tillering after high grafting and seed changing of citrus: cutting commercially available common kraft paper with the thickness of 0.1mm into paper tapes with the width of 70cm, soaking the paper tapes in aqueous solution containing 5000mg/kg of sodium naphthalene acetate and 900mg/kg of glufosinate ammonium, taking out the paper after the paper is completely soaked, hanging the paper in an outdoor ventilation place, drying the paper, recovering the dried paper, and storing the paper for later use.
Example 2
A medicine soaking paper (medicine soaking paper 2) for preventing and controlling pile-remaining sprout tillering after high grafting and seed changing of citrus: cutting commercially available common kraft paper with thickness of 0.2mm into paper tape with width of 30cm, soaking in medicinal liquid containing 15000mg/kg sodium naphthalene acetate and 1500mg/kg glufosinate-ammonium, taking out after the paper is completely soaked, hanging in outdoor ventilation place, air drying, recovering, and storing for use.
Example 3
A medicine soaking paper (medicine soaking paper 3) for preventing and controlling pile-remaining sprout tillering after high grafting and seed changing of citrus: cutting commercially available common kraft paper with the thickness of 0.15mm into paper tapes with the width of 50cm, soaking the paper tapes in liquid medicine containing 10000mg/kg of sodium naphthaleneacetate and 1200mg/kg of glufosinate-ammonium, taking out the paper after the paper is completely soaked, hanging the paper in an outdoor ventilation place, drying the paper, recovering the paper after drying, and storing the paper for later use.
Example 4
The method has the advantages that after the high-grafting of the Mozuki orange of the Mexico science is changed into the Wokan orange, the effect of sprout inhibition and branch fixation of the pile above the grafting bud is achieved.
1. Materials and methods
The method is characterized in that an orchard is implemented to be a group of CalizoZhi orange rootstock Mount cuttle orange trees in Pioneer town of Yangtze district in Chongqing city, the CalizoZhi orange trees are planted in 2011, 30 normal trees with similar sizes and the same growth vigor are selected in 2016, 2 and 17 months, and after the main branches and the auxiliary branches are sawn, high grafting is performed to change the variety into the wild oranges (the growth vigor of the wild oranges is strong), each tree is high-grafted with 6-8 wild oranges, and the following control and treatment are set:
(1) conventional Control (CK)10 plants, stumps of top-grafted seed-changing trees are treated by a conventional method, and stock is removed at a position 4-5cm above grafted buds.
(2) And (3) processing a control (T-CK)5 plant, removing an anvil at a position 60cm above the grafted bud of the high-grafting and replanting tree (namely, leaving a section of stump 60cm long above the grafted bud), not performing sprout inhibition treatment on the stump, and manually erasing the germinated sprout and recording the number of the sprout.
(3) Treating 1(T-1)5 plants, removing stock at a position 60cm above a grafting bud of a high grafting and replanting tree, then girdling a stump for a complete circle at a position 2cm above the grafting bud by using a girdling knife with the width of 3mm, wherein the girdling is performed until the stump reaches the xylem, the cortex is completely stripped, the xylem is also stripped for 1-2 mm, and the stump left above a girdling opening is called as a 'pile-remaining' (the same below). The pile and its kerf are wrapped tightly with the above-mentioned "medicine-impregnated paper 1" of "example 1" for two turns, then wrapped tightly with a commercially available black plastic film with a thickness of 0.02mm for two turns, finally wrapped tightly with a rope for water and light shielding.
(4) And (3) treating 2(T-2)5 plants, removing stocks at a position 60cm above the grafting buds of the high-grafting and replanting trees, then girdling the stumps for a complete circle at a position 3cm above the grafting buds by using a girdling knife with the width of 5mm, fully stripping the cortex when the stumps reach the xylem, and stripping the xylem for 1-2 mm. The pile and its kerf are wrapped tightly with the above-mentioned "medicine-impregnated paper 2" of "example 2" for two turns, then wrapped tightly with a commercially available black plastic film with a thickness of 0.03mm for two turns, and finally wrapped tightly with a rope for water and light shielding.
(5) And (3) treating 5 (T-3) plants, removing stocks at a position 60cm above the grafting buds of the high-grafting and replanting trees, then girdling the stumps for a complete circle at a position 2.5cm above the grafting buds by using a girdling knife with the width of 4mm, wherein the girdling is performed until the stumps reach the xylem, the cortex is completely stripped, and the xylem is also stripped for 1-2 mm. The pile and its kerf are wrapped tightly with the above-mentioned "medicine-impregnated paper 3" of "example 3" for two circles, then wrapped tightly with a commercially available black plastic film with a thickness of 0.05mm for two circles, and finally wrapped tightly with a rope for water and light shielding.
After the second shoot aging of grafted bud germination on the treated control tree (T-CK) and all T treated trees (including T1, T2, T3, the same below), it was tied to a stump with a durable soft rope (first tie-up); after the fourth time of tip aging, the scion branch tips are tied on the remaining piles by using durable soft ropes (second tying), namely, the scion branch tips are tied at an upper position and a lower position, so that the scion branch tips are prevented from being broken by wind, rain and the like.
The 10 control trees (CK) are divided into two groups because no pile is left, each group comprises 5 trees, after the second-time tip of the grafted bud germination of the 5 trees (CK-1) in one group is aged, a arrowhead bamboo rod with the diameter of about 4cm and the length of about 2.5 meters is inserted beside each grafting position and used for binding and fixing the scion branch tips, and the fourth-time scion branch tips are aged and then bound once again; no bamboo pole is inserted beside the other 5 trees (CK-2), and the other 5 trees are not bound and fixed, and the scion tips are allowed to grow.
All treated and control trees were investigated periodically for scion shoot growth and graft breakage.
2. Test results
All the T-treated and CK tree grafted buds successively sprout first tips (spring tips) in 3 months in 2016, the T-CK tree grafted buds sprout later, and the T-CK tree grafted buds successively sprout first tips (spring tips) in 3 middle months; the scion shoots on T-treated trees and CK trees grow fast, while the scion shoots on T-CK trees grow significantly slower and grow more weakly. The T-processed tree and the CK tree sprout a second tip (first summer tip) in the last 5 th month, a third tip (second summer tip) in the last 6 th month, a fourth tip (first autumn tip) in the middle 8 th month, and a fifth tip (second autumn tip) in the last 9 th month, so that the grafted bud sprouts sprout 5 times of new tips all the year round, and the tips grow robustly each time. The T-CK tree germinates the second tip (summer tip) in the first 6 th month, germinates the third tip (first autumn tip) in the first 8 th month, germinates the fourth tip (second autumn tip) in the second 9 th month, germinates 4 new tips all year round, and the growth of each tip is weaker. From the fracture condition of the scion branch tips at the grafting openings, in 2016, only 5 trees of CK-2 have 17 fractures (average 3.4 trees per tree) because the scion branch tips are not bound and fixed, and the fracture positions are all the grafting openings; the remaining treatments and controls did not develop scion shoot splits (table 1).
In the last 3 months of 2017, all treatments and controls started to germinate spring tips, and in the last 5 months, the treatments started to germinate summer tips successively. The 5-plant CK-2 tree is broken by wind and rain in 2017 (by the end of 7 months) to have 8 grafted shoot tips (1.6 grafted shoots per plant on average), and the broken part is also a grafting opening; the remaining treatments and controls did not develop shoot splits (table 1).
All the stumps treated by T (T1, T2 and T3) have no sprout, in 2016, CK-1 and CK-2 have 6.2 sprouts and 8.4 sprouts on the short stumps above grafted buds respectively on average, while the sprout amount of the stumps of T-CK is up to 223.6 sprouts, and much labor is spent on erasing the sprouts.
TABLE 1 conditions of stump sprout, scion shoot growth and crack after top grafting and variety changing of Wo oranges of Mokott orange (2016.2-2017.7)
3. Conclusion
The method is simple and easy to implement, can effectively prevent the germination of the pile-remaining sprout tillers of the Mokott orange after high-grafting and citrus reishi seeds are replaced, saves the cost for erasing the sprout tillers, avoids the nutrient consumption of the sprout tillers germination, and promotes the growth of the scion tips of the Mokoku oranges and the expansion of the crowns of the Mokoku oranges; the reserved piles are used for binding the scion branch tips, the scion branch tips can be completely prevented from being broken at the grafting opening, the effect of binding and fixing the scion branch tips by the side inserting rods is completely achieved, and manpower, material resources and financial resources for purchasing the rods and the inserting rods are saved.
Example 5
The method has the advantages that after the high-grafting of the Mokoku orange is changed into the Longhui red navel orange, the effect of sprout inhibition and branch fixation is achieved for the pile above the grafting bud.
1. Materials and methods
The method is implemented by planting carinza aurantium trees of the same country in Pioneer town Ma Liu village in Chongqing city in 2011, selecting 30 normal growing trees with similar sizes and the same growth vigor in 2016, 2 and 17 months, sawing piles on main branches and auxiliary branches, performing top grafting and changing to obtain Longhui red navel oranges (the growth vigor of the Longhui red navel oranges is medium), and grafting 7-9 grafted buds of the Longhui red navel oranges to each tree, wherein the following control and treatment are set:
(1) conventional Control (CK)10 plants, stumps of top-grafted seed-changing trees are treated by a conventional method, and stock is removed at a position 4-5cm above grafted buds.
(2) And (3) processing a control (T-CK)5 plant, removing an anvil at a position 50cm above the grafted bud of the high-grafting seed-changing tree (namely, leaving a section of stump 50cm long above the grafted bud), not performing sprout inhibition treatment on the stump, and manually erasing the sprouted sprouts and recording the number of the sprouted sprouts.
(3) Treating 1(T-1)5 plants, removing the stock at a position 50cm above a grafted bud of a high grafting and replanting tree, then girdling a complete circle of stump at a position 2cm above the grafted bud by using a girdling knife with the width of 3mm, wherein the stump reaches the xylem during girdling, the cortex is completely stripped, the xylem is also stripped by 1-2 mm, and the stump left above a girdling opening is called as a 'pile-remaining' (the same below). The pile and its kerf are wrapped tightly with the above-mentioned "medicine-impregnated paper 1" of "example 1" for two turns, then wrapped tightly with a commercial silver plastic film with a thickness of 0.02mm for two turns, finally wrapped tightly with a rope for water and light shielding.
(4) And (3) treating 2(T-2)5 plants, removing the stock at a position 50cm above the grafted bud of the high-grafting and replanting tree, then girdling the stump for a complete circle at a position 3cm above the grafted bud by using a girdling knife with the width of 5mm, wherein the girdling reaches the xylem, the cortex is completely stripped, and the xylem is also stripped for 1-2 mm. The pile and its kerf are wrapped tightly with the above-mentioned "medicine-impregnated paper 2" of "example 2" for two circles, then wrapped tightly with a commercially available silver plastic film with a thickness of 0.02mm for two circles, and finally wrapped tightly with a rope for water and light shielding.
(5) And (3) treating 5 (T-3) plants, removing the stock at a position 50cm above the grafted bud of the high grafting tree, then girdling the stump for a complete circle at a position 2.5cm above the grafted bud by using a girdling knife with the width of 4mm, wherein the stump is deeply stripped to the xylem during girdling, the cortex is completely stripped, and the xylem is also stripped for 1-2 mm. The pile and its kerf are wrapped tightly with the above-mentioned "medicine-impregnated paper 3" of "example 3" for two circles, then wrapped tightly with a commercially available silver plastic film with a thickness of 0.02mm for two circles, and finally wrapped tightly with a rope for water and light shielding.
After the second shoot aging of grafted bud germination on the treated control tree (T-CK) and all T treated trees (including T1, T2, T3, the same below), it was tied to a stump with a durable soft rope (first tie-up); after the fourth time of tip aging, the scion branch tips are tied on the retaining piles by using durable soft ropes (second tying), namely, the scion branch tips are tied at an upper position and a lower position to prevent the scion branch tips from being broken by wind and rain.
The 10 control trees (CK) are divided into two groups because no pile is left, each group comprises 5 trees, after the second-time tip of the grafted bud germination of the 5 trees (CK-1) in one group is aged, a arrowhead bamboo rod with the diameter of about 4cm and the length of about 2.5 meters is inserted beside each grafting position and used for binding and fixing the scion branch tips, and the fourth-time scion branch tips are aged and then bound once again; no bamboo pole is inserted beside the other 5 trees (CK-2), and the other 5 trees are not bound and fixed, and the scion tips are allowed to grow.
All treated and control trees were investigated periodically for scion shoot growth and graft breakage.
2. Test results
All the grafted buds on the T-treated trees and the CK trees successively germinate first tips (spring tips) in 3 months in 2016, the grafted buds on the T-CK trees germinate later, and the grafted buds on the T-CK trees successively germinate first tips (spring tips) in 3 middle months; the scion shoots on T-treated trees and CK trees grow fast, while the scion shoots on T-CK trees grow significantly slower and grow more weakly. The T-treated tree and the CK tree sprout second tips (first summer tips) in the first 5 th of the month, third tips (second summer tips) in the first 6 th of the month, fourth tips (first autumn tips) in the first 8 th of the month, fifth tips (second autumn tips) in the second 9 th of the month, and the grafted bud sprouts sprout 5 times of new tips all the year round, wherein the tips grow robustly. The T-CK tree germinates the second tip (summer tip) in the first 6 th month, germinates the third tip (first autumn tip) in the first 8 th month, germinates the fourth tip (second autumn tip) in the second 9 th month, germinates 4 new tips all year round, and the growth of each tip is weaker. From the fracture condition of the scion branch tips at the grafting openings, in 2016, only 5 trees of CK-2 have 10 fractures (average 2.0 trees per tree) because the scion branch tips are not bound and fixed, and the fracture positions are all the grafting openings; the remaining treatments and controls did not develop scion shoot splits (table 2).
In the last 3 months of 2017, all treatments and controls started to germinate spring tips, and in the last 5 months, the treatments started to germinate summer tips successively. The 5-plant CK-2 tree is broken by wind and rain in 2017 (by the end of 7 months) to have 4 grafted shoot tips (0.8 graft/plant on average), and the broken part is also at the grafting opening; the remaining treatments and controls did not develop shoot splits (table 2).
All the stumps treated by T (T1, T2 and T3) have no sprout, CK-1 and CK-2 respectively have 6.4 sprouts/plant and 5.8 sprouts/plant on the short stump above the grafted bud, the sprout height of T-CK is up to 210.2 sprouts/plant, and more labor is spent on erasing the sprouts.
TABLE 2 growth and cleavage of scion shoots after top grafting of Mokote orange to breed Longhui red navel orange (2016.2-2017.7)
3. Conclusion
The method is simple and easy to implement, can effectively prevent the stub-left shoot sprouting germination after the top grafting of the Mokott orange and the replacement of the Longhui red navel orange, saves the expense for erasing the shoot, avoids the nutrient consumption of the sprout sprouting and promotes the growth of the scion shoot of the Longhui red navel orange and the expansion of the crown thereof; the pile is used for binding the scion branch tips, can completely prevent the scion branch tips from being broken at the grafting opening, completely achieves the effect of binding and fixing the scion branch tips by the side inserting rods, and saves the manpower, material resources and financial resources for purchasing the rods and the inserting rods.
Claims (5)
1. A medicine dipping paper for sprout inhibition of high grafting and variety changing of oranges, wherein a liquid medicine used by the medicine dipping paper is a solution containing 5000-15000 mg/kg of sodium naphthalene acetate and 900-1500 mg/kg of glufosinate-ammonium; the preparation method comprises the following steps: soaking paper with the thickness of 0.1-0.2 mm and the width of 30-70 cm in a liquid medicine containing 5000-15000 mg/kg of sodium naphthylacetate and 900-1500 mg/kg of glufosinate-ammonium, taking out after completely soaking and moistening, and airing in a ventilated place.
2. The impregnated paper for suppressing sprouting according to claim 1, wherein the paper thickness is 0.15mm, and the width is 50 cm; the medicinal liquid contains 10000mg/kg sodium naphthaleneacetate and 1200mg/kg glufosinate-ammonium.
3. The impregnated paper with anti-sprouting function as claimed in claim 1 or 2 wherein said paper is kraft paper.
4. The method for preventing scion shoot tips from being cracked by using the medicinal impregnated paper for the stake suppression and the branch fixation of the high-grafting citrus variety change according to any one of claims 1 to 3, which comprises the following steps: before or just after the grafted bud germinates, stock removal is carried out on the branch, a section of stump with the length of 50-60 cm is left above the grafted bud, a ring peeling knife with the width of 3-5 mm is used for circularly peeling the stump for a complete circle 2-3 cm above the grafted bud, the stump reaches the xylem completely during circular peeling, the cortex is completely peeled, and the xylem is also peeled for 1-2 mm; the stumps left above the girdling openings are remained stumps, the remained stumps are tightly wrapped and bound for 2 circles by the medicine impregnated paper, and the remained stumps are wrapped and fixed for 2 circles by black plastic films or silver plastic films with the thickness of 0.02-0.05 mm; after the second branch tip and the fourth branch tip of the scion are respectively aged, binding and fixing the scion branch tips on the retaining pile by using ropes.
5. The method for preventing scion shoot tips from being broken by using the dipping paper for replacing variety of citrus with the medicine according to claim 4, wherein the grafting time of the citrus top grafting is in the range of 8-10 months, or before spring germination, or just before germination, and the grafting is performed on a main trunk or a thick branch forming an included angle of 50-90 degrees with the ground plane.
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| CN111264282A (en) * | 2020-03-30 | 2020-06-12 | 广西壮族自治区农业科学院 | Method for preventing citrus seedling stock from sprouting |
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