CN111869370A - Chinese tallow tree seed treatment and coating method - Google Patents
Chinese tallow tree seed treatment and coating method Download PDFInfo
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- CN111869370A CN111869370A CN202010763279.4A CN202010763279A CN111869370A CN 111869370 A CN111869370 A CN 111869370A CN 202010763279 A CN202010763279 A CN 202010763279A CN 111869370 A CN111869370 A CN 111869370A
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- seed
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- chinese tallow
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
-
- 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
- A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
Abstract
The invention discloses a method for treating and coating Chinese tallow tree seeds, belonging to the technical field of seed processing. Mixing Sapium sebiferum seeds with coarse sand, caustic soda and wetting agent, soaking and kneading, soaking seeds with clear water, mixing seeds with clay powder, stirring, adhering clay powder to the surface of seeds with furrow and hole, adding penetrant and germination accelerating hormone into seed coating, and coating by conventional method. The method makes the seed coating agent more easily soaked and attached on the surface of the seed, improves the seed coating success rate, reduces the shedding rate, and simultaneously, the penetrant is also beneficial to the penetration of the germination accelerating hormone into the seed embryo to play a role. The method has the advantages of low cost, easy operation and obvious effect, and is suitable for being applied to the coating of the plant seeds with wax on the epidermis.
Description
Technical Field
The invention belongs to the technical field of seed processing, and particularly relates to a method for treating seeds related to Chinese tallow tree seed coating and applying a seed coating agent.
Background
1. Germination of Chinese tallow tree seeds
The Chinese tallow tree of the present invention includes Sapium sebiferum (A)Sapium.discolor) And Chinese tallow tree (S. sebiferum). The Chinese tallow tree is an excellent ornamental garden and biological energy tree species, is also used for furniture, carving, medicine and the like, and has attracted attention in many aspects in recent years and is cultivated and popularized. The sapium sebiferum propagation is almost all sowing propagation, the seed is oblate-shaped, the length is about 8 mm, the width is 6-7 mm, the conventional sowing emergence rate is low, the speed is low, the emergence is irregular because the sapium sebiferum seed shell is hard and the outer coat is thick wax layer, certain barriers are provided for the water absorption and the germination of the seed, the passive reason for seed dormancy is provided, and the germination rate, the germination vigor and the germination index of the seed can be improved by artificially damaging the seed coat, soaking in acid, alkali and warm water, laminating the seed at low temperature and the like. Furthermore, the seed is plantedThe existence of endogenous germinant inhibitors in the peel and endosperm is the main reason for the dormancy of sapium sebiferum seeds (Li Shu refined, etc. the reason for the dormancy of sapium sebiferum seeds and the research on the releasing method thereof, Nanjing university of forestry bulletin (Nature science edition) 2011,35(5): 1-4).
2. Chinese tallow tree seed coating
The seed coating is that the seeds and the seed coating agent are stirred and mixed according to a certain proportion, and the seed coating agent is uniformly coated on the surface of the seeds to form a firm medicine film. When the seed is sowed, the medicine film absorbs water and swells, and the active ingredients are absorbed by the seeds or released into the soil, so that the development of the germination accelerating seed coating agent of the Chinese tallow tree has great practical significance for improving the germination rate and the germination vigor.
Because the sapium sebiferum seeds are provided with wax on the surface to form a low-energy surface, the most common method for softening the wax is soaking in alkali liquor, the seed coating agent also uses water as a solvent, the surface energy of the seed coating agent is large, the surface tension is higher than the critical surface tension of the wax, the seed coating agent is not easy to be soaked on the surface of the seeds, as a result, the alkali liquor cannot be fully contacted and reacted with the seed wax, the wax softening efficiency is low, the seed coating agent is not easy to spread and adhere on the surface of the seeds during coating, the seed coating agent flows under the action of gravity, the sapium sebiferum seeds are large, the seed coating film is not uniformly distributed on the surface of the seeds after film forming, the thickness of the seed coating film is different, the coating rate (the ratio of the film covering area to the total surface area of the seeds).
3. Action of surfactants on waxes
Generally, a surfactant with HLB value of 7-9 is used as a wetting agent, and wetting refers to that gas adsorbed on the surface of a solid is replaced by liquid such as water or aqueous solution, namely the original gas/solid interface disappears to form a new solid/liquid interface. The wetting agent mainly reduces the solid-liquid interfacial tension and increases the wetting and contact of the liquid medicine on the surface of the object to be treated (pest, plant, etc.). The penetrant can increase the penetration of the liquid medicine on the surface of the treated object and promote the absorption of the liquid medicine (Zhang Zong. application and research progress of pesticide adjuvant. pesticide science and management, 2009, 30 (1): 42-47), the penetration refers to the phenomenon that liquid enters capillary or porous solid, the penetrant has good wetting effect, and the wetting agent has good penetration effect only in a few types (Zhonghongxiang. Mandsetio wetting and penetration. Jiangsu silk, 1995, (2): 50-51. Weigementu, et al. research on pesticide wetting penetrant. surfactant industry, 1994(1):19-24, 14), such as nekal powder and penetrant JFC.
Therefore, when liquid such as solution is mixed with the wax-carrying seeds, the wetting agent and the penetrating agent can ensure that the liquid is fully contacted with the wax layer of the seeds and is easy to soak and adhere to the surfaces of the seeds, and the penetrating agent also promotes active ingredients of the liquid to penetrate into the wax layer and the seed coats through capillaries and micro pores to be absorbed and utilized by the seeds.
Disclosure of Invention
The invention mainly aims to provide a Chinese tallow tree seed treatment and coating method, which comprises the steps of increasing the roughness of the seed surface, improving the adhesion of a seed coating agent on the seed surface, and promoting active ingredients to permeate into the seeds to play a role, so as to solve the problems in the background technology.
A method for treating and coating the seeds of Chinese tallow tree includes such steps as pretreating the seeds, mixing it with coarse sand, alkali solution and wetting agent, kneading, removing part of wax layer from seeds and increasing the roughness of seeds.
Another problem solved by the present invention is to make the coating easy to wet and adhere the wax on the surface of the seed while facilitating the penetration of the active ingredient into the seed. During the seed pretreatment, the seed surface is rough, there are slot and pot hole, the seed dries slightly, slot and pot hole still have not dry moisture promptly, the seed mixes the stirring with clay powder, the moisture adhesion of slot and pot hole live the clay powder granule, when the partly inlay card of single granule goes into the pot hole, when partly protrusion wax layer surface, also increase seed surface roughness, during the seed mixes with the seed coating agent during the capsule, because rough surface's retardation effect, reduce the seed coating agent at seed surface trickling speed, the seed coating agent is comparatively even in seed surface distribution. The seed coating agent is also added with a penetrating agent, so that the surface tension of the seed coating agent is reduced, the seed coating agent is easier to be soaked and attached in wax on the surface of the seed, the seed coating agent is uniformly distributed on the surface of the seed, and the penetrating agent is also beneficial to the active ingredients of the seed coating agent to penetrate a wax layer and a seed coat along with moisture and enter a seed embryo to play a role.
The technical scheme provided by the invention is as follows:
a method for treating and coating the seeds of sapium sebiferum includes such steps as mixing the seeds with coarse sand, adding 1-3% caustic soda and wetting agent, immersing for 1-4 hr, kneading for 30-60 min, removing alkali liquid, and rinsing out wax. Soaking in clear water for 40-60 hr while stirring for 2-3 times per day, taking out the seeds, air drying, mixing with clay powder, stirring, and removing excessive powder on the seed surface. Adding penetrant and pregermination hormone into conventional seed coating agent, and coating by conventional method.
The wetting agent is stable in strong alkaline medium and hard water, and adopts sodium dibutylnaphthalenesulfonate with the concentration of 0.03-0.3%.
The clay powder has viscosity when meeting water, does not react with the seed coating agent, and selects one of kaolin and bentonite.
The penetrating agent is one of diisooctyl succinate sodium sulfonate (OT) and lauryl alcohol polyoxyethylene ether, or the diisooctyl succinate sodium sulfonate and the lauryl alcohol polyoxyethylene ether are mixed according to the volume ratio of 2-8:1, and the concentration of the penetrating agent in the seed coating agent is 0.03-0.3%.
The pregermination hormone is gibberellin, and the concentration of the pregermination hormone in the seed coating agent is 400-900 mg/L.
The invention has the beneficial effects that: the wetting agent is softened by beneficial alkali liquor for seed pretreatment, a wax layer is removed, coarse sand is kneaded to increase the roughness of the surface of the seed, the seed is mixed with clay powder to increase the roughness of the surface of the seed, the seed coating agent is uniformly distributed on the surface of the seed during coating, and the penetrating agent is added into the seed coating agent, so that the seed coating agent is easier to be soaked and attached in wax on the surface of the seed, the success rate of seed coating is improved, and the dropping rate of a coating film is reduced. The penetrant is also favorable for accelerating germination hormone to penetrate seed coat and enter into embryo to take effect. The method has the advantages of low cost, easy operation and obvious effect, and is suitable for being applied to the coating of the plant seeds with wax on the epidermis.
Example one
Method (A)
1. The inactive ingredients (thickener, film-forming agent, pigment, antifreeze agent and water) of the conventional seed coating agent are in conventional dosage and contain 500mg/L of the pregermination hormone gibberellin.
Chinese tallow tree seeds, dried in the sun, with a thousand seeds weighing 212 g. Mixing Chinese tallow tree seeds with the same volume of coarse sand, adding 2% caustic soda to completely submerge the sand-seeds, standing and soaking for 2 hr, kneading for 40 min, draining off alkali solution, rinsing with clear water to remove wax residue, soaking seeds in clear water for 48 hr, stirring 3 times daily, and coating by conventional method. The treatment method of the Chinese tallow tree seeds comprises the steps of adding a wetting agent of sodium dibutyl naphthalene sulfonate into caustic soda solution on the basis of a control group, enabling the concentration to be 0.1% of the caustic soda solution, carrying out soaking, kneading and seed soaking to be the same as the control group, forming a rough surface on the surfaces of the seeds, rinsing the seeds with clear water, slightly drying the seeds, mixing the seeds with kaolin powder, stirring the mixture, enabling grooves and pits on the surfaces of the seeds to be adhered with the kaolin powder, shaking off the redundant powder on the surfaces of the seeds, adding a penetrating agent into a conventional seed coating agent, mixing the sodium diisooctyl succinate sulfonate with polyoxyethylene lauryl ether according to the volume ratio of 4:1, enabling the dosage to be 0.08% of the seed coating agent, and coating by.
2. Average water uptake per seed = seed weight after seed soaking-seed weight before seed soaking after dewaxing (g/grain). When coating, the coating area of the solidified coating film reaches 80% of the surface of the Chinese tallow tree seeds, namely the coating is successful, and the success rate is the ratio of the weight of the seeds which are successfully coated to the weight of the total seeds. The seeds which are successfully coated are shaken for 30 min on a shaking table of 250 r/min and then weighed, and the percentage of the falling amount of the coating film to the initial weight of the coated seeds is the falling rate. And (4) taking the coated seeds which do not obviously fall off by the oscillation coating film for soil sowing, and observing the germination rate and the germination vigor (the number of the germinated seeds accounts for the total number of the tested seeds on the 35 th day after sowing).
(II) results
1. After soaking seeds in a control group, airing the seeds, and measuring the average water absorption of the seeds to be 0.069 g/grain, the average water absorption of the seeds after soaking the seeds in the method of the invention is 0.107 g/grain, which is improved by 55 percent compared with the control group, which shows that the wetting agent used in the method of the invention is more effective in dewaxing the seeds and is beneficial to the seeds to absorb water.
2. The seed coating quality result is shown in the table, the coating success rate of the invention is 95%, compared with the conventional seed coating, the coating falling rate of the invention is obviously improved, and compared with the conventional coating, the coating falling rate of the invention is 0.6%, namely, the invention enhances the wetting effect of alkali liquor and dissolves the wax layer of the seed because the alkali liquor is added with the wetting agent during the seed treatment; the kaolin powder is adhered to the surface of the rough seed to increase the roughness of the surface of the seed, and the seed coating agent is added with the penetrant, so that the seed coating agent is adhered to the surface of the seed, the coating film is completely covered on the surface of the seed, and the seed is not easy to fall off.
3. Although the gibberellin content of the two groups of seed coating agents is the same, the germination rate and the germination potential of the seed coating agent are obviously improved compared with those of the conventional method, and the penetrant of the seed coating agent is favorable for the gibberellin to penetrate into a wax layer and a seed coat to be absorbed by a seed embryo, so that the germination is promoted, and the seed coating agent can germinate orderly earlier.
Claims (1)
1. A Chinese tallow tree seed treatment and coating method comprises Chinese tallow tree seed pretreatment and seed coating agent application method, and is characterized in that: mixing the Chinese tallow tree seeds with the same volume of coarse sand, simultaneously adding 1-3% caustic soda and a wetting agent, soaking for 1-4 hours, kneading for 30-60 minutes, soaking the seeds in clear water for 40-60 hours, slightly drying the seeds, mixing and stirring with clay powder, and adhering the clay powder to the ditches and pits on the surfaces of the seeds; adding penetrant and pregermination hormone into conventional seed coating agent, and coating by conventional method;
the wetting agent is stable in strong alkaline medium and hard water, and adopts sodium dibutylnaphthalenesulfonate with the concentration of 0.03-0.3%;
the clay powder has viscosity when meeting water, and is selected from one of kaolin and bentonite;
the penetrating agent is one of diisooctyl succinate sodium sulfonate and polyoxyethylene lauryl ether, or the diisooctyl succinate sodium sulfonate and the polyoxyethylene lauryl ether are mixed according to the volume ratio of 2-8:1, and the concentration of the penetrating agent in the seed coating agent is 0.03-0.3%;
the germination accelerating hormone is gibberellin, and the concentration of the germination accelerating hormone in the seed coating agent is 400-900 mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763279.4A CN111869370B (en) | 2020-08-01 | 2020-08-01 | Chinese tallow tree seed treatment and coating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010763279.4A CN111869370B (en) | 2020-08-01 | 2020-08-01 | Chinese tallow tree seed treatment and coating method |
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| Publication Number | Publication Date |
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| CN111869370A true CN111869370A (en) | 2020-11-03 |
| CN111869370B CN111869370B (en) | 2022-06-10 |
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| CN202010763279.4A Active CN111869370B (en) | 2020-08-01 | 2020-08-01 | Chinese tallow tree seed treatment and coating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115380908A (en) * | 2021-10-08 | 2022-11-25 | 宁波甬森生物科技有限公司 | Plant growth regulator and preparation method thereof |
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| CN1363215A (en) * | 2002-01-25 | 2002-08-14 | 华东理工大学 | Coating agent containing chitosan for vegetable seeds |
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| CN106455484A (en) * | 2014-06-16 | 2017-02-22 | 盈可泰控股有限责任公司 | Treatment for plant seeds |
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| CN110050541A (en) * | 2019-05-09 | 2019-07-26 | 江苏省农业科学院宿迁农科所 | A kind of method of Chinese tallow tree seed fast dewaxing vernalization |
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2020
- 2020-08-01 CN CN202010763279.4A patent/CN111869370B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363215A (en) * | 2002-01-25 | 2002-08-14 | 华东理工大学 | Coating agent containing chitosan for vegetable seeds |
| US20090093365A1 (en) * | 2007-10-08 | 2009-04-09 | Walsh John F | Multilayer seed coating |
| CN103058764A (en) * | 2012-12-28 | 2013-04-24 | 北京克劳沃草业技术开发中心 | A coating agent and a method for pelleting seeds of Cynodondactylon (Linn.) Pers by using the coating agent |
| CN106455484A (en) * | 2014-06-16 | 2017-02-22 | 盈可泰控股有限责任公司 | Treatment for plant seeds |
| CN106612754A (en) * | 2016-12-16 | 2017-05-10 | 玉溪中烟种子有限责任公司 | Anionic tobacco coating pelleted seed and preparation method thereof |
| CN110050541A (en) * | 2019-05-09 | 2019-07-26 | 江苏省农业科学院宿迁农科所 | A kind of method of Chinese tallow tree seed fast dewaxing vernalization |
Non-Patent Citations (3)
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| 于红茹 等: "《现代育苗技术》", 31 January 2016, 重庆大学出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115380908A (en) * | 2021-10-08 | 2022-11-25 | 宁波甬森生物科技有限公司 | Plant growth regulator and preparation method thereof |
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| CN111869370B (en) | 2022-06-10 |
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