CN106612751A - Coating agent taking polyurethane as main ingredient to regulate corn seed germination - Google Patents
Coating agent taking polyurethane as main ingredient to regulate corn seed germination Download PDFInfo
- Publication number
- CN106612751A CN106612751A CN201610829192.6A CN201610829192A CN106612751A CN 106612751 A CN106612751 A CN 106612751A CN 201610829192 A CN201610829192 A CN 201610829192A CN 106612751 A CN106612751 A CN 106612751A
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- Prior art keywords
- coating agent
- seed
- polyurethane
- germination
- days
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention relates to a coating agent taking polyurethane as a main ingredient to regulate corn seed germination. The coating agent is composed of, by weight volume, 26-44% of polyurethane A-539, 2.8% of polyurethane H-34, 1.3% of polyvinyl alcohol and the balance of water, wherein the sum of the weight volume of the components is 100%. When the coating agent is in use, mixing of seeds and the coating agent is performed according to a weight ratio of 4:1, content of the polyurethane A-539 can be adjusted according to number of days of delayed germination, and germination can be delayed by 5 days to maximum extent and by 3.4 days averagely. The coating agent does not contain an organic solvent, thereby being pollution-free; seed treatment can effectively delay seed germination, germination regulation effect is realized, florescence adjusting is realized through germination regulation, and the coating agent is convenient for disposable mechanical seeding, time saving, labor saving and cost saving.
Description
First, technical field
The present invention relates to a kind of regulate and control the coating agent that corn seed is emerged by Main Ingredients and Appearance of polyurethane, for regulating and controlling corn
The seed sprouting time, belong to seed machining field, concrete composition is related to polyurethane Polymer material, is mainly used in corn
Male parent seed sprouting regulation and control in cenospecies production process, to reach the purpose of florescence control.
2nd, background technology
Flower synchronization problem is to affect one of cenospecies quality most thorny issue, and current florescence control technology is more, can
It is divided into intermission seeding and the fertility big class of period regulation two.Intermission seeding is mainly using artificial, it is impossible to adopt Mechanization sowing, increases
The cost of the production of hybrid seeds.The method that corn seed is emerged and then regulates and controls the wrong phase is regulated and controled by coating, disadvantage mentioned above can be effectively overcome,
Male parent after coating can be sowed with the maternal same period, reduce breeding cost.
In corn hybrid seed production, intermission seeding is generally compliant with the rule of " would rather the father such as mother, can not the mother such as father ", according to
1.5 to 2 times of difference florescence, sowings day time.Florescence control during fertility, the time-amplitude of regulation and control is less.Intermission seeding is main
The florescence control measure wanted.At present both at home and abroad, seed coating technology is mainly used in prevention and elimination of disease and pests, promotes crop growth
And changing the aspect such as sowing characteristic of seed, the regulation and control that are applied to emerge, the flowering regulation coating process country have not been reported.
3rd, the content of the invention
In order to solve the above problems, the invention provides a kind of regulate and control what corn seed was emerged by Main Ingredients and Appearance of polyurethane
Coating agent.
It is a kind of to regulate and control the coating agent that corn seed is emerged, each component percent by volume by weight by Main Ingredients and Appearance of polyurethane
For：Polyurethane A-539：26-44%, polyurethane H-34：2.8%, polyvinyl alcohol：1.3%, balance of water；Each component weighing body
Product percentage sum is 100%.
It is 4 according to seed and coating agent part by weight when using:1 mixing, forms the surface of the seed uniform complete thin
Film, dries at room temperature.Can need to adjust the content of polyurethane A-539 according to the number of days that emerge is postponed, it is according to setting
Fixed kind material ratio mixes coating agent and seed are uniform, and the prolongation time is directly proportional to the solid content of polyurethane A-539 and (postpones
The seedling time, then need the percentage by weight for increasing polyurethane A-539), most long to postpone to emerge 5 days, average retardation 3.4 days.
Seed coating agent principal component involved in the present invention, without organic solvent, will not constitute dirt using water as solvent
Dye, and process seed and can effectively postpone the sprouting of seed and emerge, the effect of regulation and control of emerging is played, realize by regulation and control of emerging
The regulation at florescence is carried out, is easy to disposable machine uniformlyization to sow, it is time saving and energy saving, it is cost-effective.
4th, illustrate
Fig. 1 is by seed and utilizes seed coating agent prepared by the present invention according to Different Weight percentage mixed processing seed
The impact figure of (planting material ratio) to time delay of emerging.
It is successively from left to right that kind of a material compares 3 in Fig. 1:1、4:1、5:1.Found out by Fig. 1, according to seed and seed coating agent not
Same weight is more different to the carryover effects of seed sprouting than processing seed；Seed compares 4 with seed coating agent weight:Effect is most when 1
It is good.
Fig. 2 is that 13 corn inbred lines are gone out when polyurethane content is 44% (percent weight in volume) in seed coating agent
The impact figure of seedling time.
Left figure is 40% relative moisture casting bed seed sprouting curve in Fig. 2；Right figure is the curve of emerging under field condition.Figure
2 understand that coating agent can effectively postpone the seedling-growing time of Seed of maize inbred, and in the time delay of the actual plantation in field
To grow than 40% relative moisture casting bed time delay.
5th, specific embodiment
With corn seed (Zheng Dan 958 and 13 Seed of maize inbred) as material, by embodiment the present invention is done into
The description of one step.
13 corn inbred lines are respectively 04 crowd of 0522-1-1,05ZH-2-1-5, HBII-42-1-1-1, are 26-1-1, Zheng
653rd, Shen 137, HN0715-2-1-1, A369-2-1, HB0858-1, Zheng 58, prosperous 7-2, PH6WC, PH4CV.
Embodiment 1
Illustrate to fill a prescription according to material not of the same race than processing the impact to postponing seed sprouting effect.
(1) preparation of coating agent
In terms of percent weight in volume：Using water as solvent, prepare respectively solid content be 9%, 18%, 26%, 35%,
The polyurethane A-539 emulsions of 44% (percent weight in volume), add 1.3% polyvinyl alcohol, then addition 2.8% respectively is poly-
Urethane H-34.
(2) seed coating is processed
The similar seed of full seed, uniform in size, shape is selected from pending seed (Zheng Dan 958), it is accurate on demand
Certain weight is really weighed, then respectively according to 3:1、4:1、5:1 kind material is than (the seed coating that i.e. prepared by seed and the present invention
The proportioning of agent) add step 1) prepare different content polyurethane A-539 emulsions coating agent so as to fully mix with seed
It is even, complete, uniform, consistent film is formed in the surface of the seed, it is placed in natural drying at room temperature on clean smooth plastics plate stand-by.
(3) casting bed planting experiment
From step 2) respectively random number takes 50 as a repetition in the seed that processes of three kinds of ratios, and each is processed 4 times
Repeat；Germination casting bed according to《Crop seeds inspection procedure》The sand grains of requirement, using it is front must scrubbed high temperature sterilization disappear
Poison, sand moisture is set as the 40% of saturation moisture content；The wet sand that sterilization is mixed loads germination box, thick to 4 cms, will
Sand strikes off, and seed is come in culture box, and embryo portion is upward and seed is towards consistent, 50 seeds of uniform discharge in each box,
To maintain a certain distance between every seed, it is to avoid seed is subject to courses of infection, then the cm wet sand of lid 1.5 and by sand
Surface is put into 25 DEG C of continuous light incubators after striking off；Took off from the 3rd day and build, water and count clearly germination seedling number daily, go in time
Except necrosis seedling and by data record.Calculate averagely emerge number of days and late days.Average germinating time (my god) MGT=Σ
(Gt*Dt)/Σ Gt are (in formula:Gt is the germinative number in different time, and Dt is germination number of days, and Σ is summation).Late days=place
The average seedling-growing time of the reason average seedling-growing time of seed-untreated seed
(4) interpretation of result
Respectively according to 3:1、4:1、5:1 kind of material is than the seed after process, the seed casting bed germination test (40% from after process
Relative moisture casting bed, 25 DEG C are incubated) result (Fig. 2) is it can be seen that than process, seed is equal can prolong according to three kinds of different kind material
Late seed emerge and carryover effects are different.With reference to table 1 it is found that the coating agent of different solid content A-539 is according to 3:1 kind of material
It is respectively 0.9,1.3,2.7,3.1,3.7 days than the seed sprouting late days after process, according to 4:1 kind of material than respectively 0.9,
1.2nd, 2.5,3.1,3.6 days, according to 5:1 kind material ratio respectively 0.7,1.2,2.2,2.7,3.3 days.According to 4:1 kind of material is than at
Manage seed sprouting late days and according to 5:There is significant difference than process in a kind of material, and with according to 3:1 kind of material compares processing difference
Property is not notable, therefore 4:1 kind of material is than being that the most suitable kind material that coating agent is used compares.
The material not of the same race of table 1 compares the impact that seedling-growing time postpones
Embodiment 2
Prove controllable corn inbred line field emergence of the present invention.
(1) preparation of coating agent
In terms of percent weight in volume：Using water as solvent, the polyurethane A-539 emulsions that solid content is 44% are prepared, added
The polyvinyl alcohol for plus 1.3%, then the polyurethane H-34 of addition 2.8% respectively.
(2) seed coating is processed
The similar seed of full seed, uniform in size, shape is selected from 13 corn inbred line variety seeds, on demand
Certain weight is accurately weighed, then respectively according to 4:1 kind material is than adding quantitative coating formula so as to fully mix with seed
It is even, complete, uniform, consistent film is formed in the surface of the seed, it is placed in natural drying at room temperature on clean smooth plastics plate stand-by.
(3) field planting test
Using non-coating kind as control, cell is arranged according to random district's groups, 4 repetitions, and per each sowing 50 is processed.First make
Equidistant fine monoseeding after moisture in the soil, seed level is about 5 centimetres, and other are according to normal field management.Record field ground temperature, the soil water
Point content and its situation of emerging, calculate emergence rate and average seedling-growing time.
(4) interpretation of result
Knowable to table 2 and Fig. 2, coating agent can effectively postpone the seedling-growing time of Seed of maize inbred, and in field
Actual planting conditions lower time delay will be grown than 40% relative moisture casting bed time delay, and understand that formula is processed by table 3
The decline of seeding ratio is not caused.
The coating seed indoor germination of table 2 and field emergence are compared
The different formulations of table 3 process seed Seedling emergence rate
Claims (3)
1. it is a kind of to regulate and control the coating agent that corn seed is emerged, each component percent by volume by weight by Main Ingredients and Appearance of polyurethane
For：Polyurethane A-539：26-44%, polyurethane H-34：2.8%, polyvinyl alcohol：1.3%, balance of water；Each component weighing body
Product percentage sum is 100%.
2. coating agent as claimed in claim 1 compares 1 with seed according to weight:4 coatings are postponing answering during corn seed is emerged
With.
3. coating agent as claimed in claim 1, it is characterised in that postpone time that corn seed emerges with polyurethane A-539's
Solid content is directly proportional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610829192.6A CN106612751A (en) | 2016-09-19 | 2016-09-19 | Coating agent taking polyurethane as main ingredient to regulate corn seed germination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610829192.6A CN106612751A (en) | 2016-09-19 | 2016-09-19 | Coating agent taking polyurethane as main ingredient to regulate corn seed germination |
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| Publication Number | Publication Date |
|---|---|
| CN106612751A true CN106612751A (en) | 2017-05-10 |
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ID=58853158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610829192.6A Pending CN106612751A (en) | 2016-09-19 | 2016-09-19 | Coating agent taking polyurethane as main ingredient to regulate corn seed germination |
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| CN (1) | CN106612751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024058988A3 (en) * | 2022-09-12 | 2024-04-25 | Pursell Agri-Tech, LLC | Coated seeds and methods of making same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300540A (en) * | 1999-12-23 | 2001-06-27 | 中国石油化工集团公司 | Coating for delaying germination of seeds and process for preparing it |
-
2016
- 2016-09-19 CN CN201610829192.6A patent/CN106612751A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300540A (en) * | 1999-12-23 | 2001-06-27 | 中国石油化工集团公司 | Coating for delaying germination of seeds and process for preparing it |
Non-Patent Citations (2)
| Title |
|---|
| 杜勇: "玉米种子包膜调控出苗技术研究", 《山东农业大学硕士学位论文》 * |
| 蔡万涛等: "国外种子包衣技术及其对种子的影响研究进展", 《现代化农业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024058988A3 (en) * | 2022-09-12 | 2024-04-25 | Pursell Agri-Tech, LLC | Coated seeds and methods of making same |
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Application publication date: 20170510 |