阅读说明：本技术 一种含有芸苔素内酯与硅丰环的水稻种子处理剂 (Rice seed treating agent containing brassinolide and silatrane ) 是由 李志江 楚娟娟 林建海 于 2020-05-01 设计创作，主要内容包括：本发明涉及一种含有芸苔素内酯与硅丰环的水稻种子处理剂,由有效成分和助剂组成,所述有效成分的质量占水稻种子处理剂总质量的5～50％,所述有效成分为芸苔素内酯和硅丰环,所述助剂为消泡剂0.5-5.0份,分散剂1-5份、警戒色0.1-0.5份、成膜剂0.1-1份、增稠剂1-5份、防冻剂5-10份,水补足至100％。本发明提供的该种水稻种子处理剂,具有成膜性能好、药效好、药效稳定等特点,包衣浸水脱落率小于2.0％；对水稻种子进行包衣处理后,可提高水稻发芽过程对丁·扑或丁·噁等封闭除草剂的耐药性、水稻抑制率小于15％,可促进水稻幼苗活力旺盛,快速爆发新根,保障水稻出苗率,从而降低丁·扑或丁·噁等封闭除草剂单独处理时对水稻发芽与生长的影响。(The invention relates to a rice seed treating agent containing brassinolide and silatrane, which consists of effective components and an auxiliary agent, wherein the mass of the effective components accounts for 5-50% of the total mass of the rice seed treating agent, the effective components are brassinolide and silatrane, the auxiliary agent is 0.5-5.0 parts of a defoaming agent, 1-5 parts of a dispersing agent, 0.1-0.5 part of a warning color, 0.1-1 part of a film forming agent, 1-5 parts of a thickening agent and 5-10 parts of an antifreezing agent, and water is added to the rice seed treating agent to make up to 100%. The rice seed treating agent provided by the invention has the characteristics of good film forming property, good drug effect, stable drug effect and the like, and the water immersion and falling rate of a coating is less than 2.0%; after the rice seeds are coated, the drug resistance of the rice germination process to closed herbicides such as Ding-Pu or Ding-ao can be improved, the inhibition rate of the rice is less than 15%, the vigorous vigor of rice seedlings can be promoted, new roots can rapidly burst, the emergence rate of the rice is guaranteed, and therefore the influence of the closed herbicides such as Ding-Pu or Ding-ao on the germination and growth of the rice when the closed herbicides are independently treated is reduced.)

1. A rice seed treatment agent containing brassinolide and silatrane is characterized in that the mass of active ingredients accounts for 5-50% of the total mass of the rice seed treatment agent, the active ingredients are brassinolide and silatrane, the auxiliary agent is 0.5-5.0 parts of a defoaming agent, 1-5 parts of a dispersing agent, 0.1-0.5 part of a warning color, 0.1-1 part of a film-forming agent, 1-5 parts of a thickening agent, 5-10 parts of an antifreezing agent, and water is added to make up to 100%.

2. The rice seed treatment agent containing brassinolide and silatrane according to claim 1, wherein the brassinolide is selected from any one of 28-homobrassinolide, 24-epibrassinolide, 25-methyl brassinolide, propionyl brassinolide, 28-epibrassinolide, mixotropy brassinolide and 14-hydroxy brassinosterol.

3. The rice seed treatment agent containing brassinolide and silatrane according to claim 1, wherein the weight of the brassinolide accounts for 0.001-1% of the total weight of the rice seed treatment agent, and the weight of the silatrane accounts for 4.999-49.000% of the total weight of the rice seed treatment agent.

4. The rice seed treatment agent containing brassinolide and silatrane according to claim 1, wherein: the defoaming agent is tween 80 or linseed oil.

5. The rice seed treatment agent according to claim 1, characterized in that: the dispersant is lignosulfonate, naphthalene sulfonate formaldehyde condensate or alkyl aryl sulfonate.

6. The rice seed treatment agent according to claim 1, characterized in that: the warning color is aurora green, blue purple or Baolan pigment.

7. The rice seed treatment agent according to claim 1, characterized in that: the film forming agent is vinyl acetate-ethylene copolymer, sodium alginate or water-soluble polymer polyvinyl alcohol.

8. The rice seed treatment agent according to claim 1, characterized in that: the thickener is propylene glycol stearyl fatty acid ester or trihydroxy glyceryl stearate.

9. The rice seed treatment agent according to claim 1, characterized in that: the antifreezing agent is ethylene glycol or glycerol.

10. The rice seed coating process with the rice seed treating agent as set forth in claim 1 includes: selecting rice seeds, dressing seeds and coating, curing a medicine film, statically soaking the seeds, accelerating germination and sowing.

11. The rice seed treatment agent containing brassinolide and silatrane as claimed in claim 1, which has good film forming property, good drug action, and stable drug action, and has a coating water-soaking abscission rate of less than 2.0%.

12. The rice seed treatment agent containing brassinolide and silatrane as claimed in claim 1, which can improve the resistance of enclosed herbicides such as butachlor or butachlor during rice germination and has a rice inhibition rate of less than 15% after coating rice seeds.

13. The rice seed treatment agent containing brassinolide and silatrane as claimed in claim 1, wherein the rice seed is coated to promote vigorous rice seedling activity and rapid new root emergence, thereby ensuring the application of rice emergence rate and normal growth.

Technical Field

The invention relates to the technical field of pesticides, and particularly relates to a rice seed treating agent containing brassinolide and silatrane.

Background

Rice is one of the most important grain crops in the world, weeds in paddy fields are serious, the prevention and the control of gramineous weeds are difficult, and particularly, the weeds such as barnyard grass and the like are frequently damaged on rice seedbeds. Therefore, many farmers are used to close and weed the rice seedbed by using the butyl-chlorfenapyr or butyl-oxazier, and the method has the characteristics of low prevention and control cost, convenient use and good weeding effect.

However, the medicament has higher requirements on use technology and environmental conditions, and is easy to cause phytotoxicity when being improperly used. For example, if the soil covering is too shallow or the soil covering is not uniform, the damage may occur at low temperature and high humidity. Particularly, the seedbed with weak growth or low-lying water accumulation of seedlings is easy to be damaged by the seedlings which are unearthed or unearthed. Because the soil layer of the seedling tray is thin, after the seedling bed sprayed with Dingpu or Dingoxa closed weeding is watered, the medicament on the soil surface is sprayed with water, and sprouts which do not come out of the soil or seedlings with weak growth vigor, especially the seedling bed at a low-lying water accumulation part, cause serious phytotoxicity.

Brassinolide is one of steroid compounds with higher biological activity, and is widely present in plants. It has very low concentration, is efficient plant growth regulator, and can raise the growth of plant nutrient and promote fertilization obviously at very low concentration. Some of its physiological effects are due to the presence of auxin, gibberellin, cytokinin, which are some of the characteristics: 1. promote cell division and plant growth. Has obvious effect of promoting cell division and transverse growth and longitudinal growth of organs, thereby playing the role of promoting crop growth. 2. Delaying leaf aging, keeping green for a long time, enhancing chlorophyll synthesis, improving photosynthesis, and promoting leaf color deepening and greening. 3. The phytotoxicity of crops is relieved. By coordinating the hormone action in crops, the metabolism is promoted, the synthesis of amino acid in vivo can be accelerated, the amino acid loss caused by phytotoxicity is compensated, the growth requirement of crops is met, and the phytotoxicity is reduced until the normal growth is recovered.

The silatrane is an organic silicon compound with a special molecular structure and obvious biological activity, can stimulate the organic division of rooting cells and the biosynthesis of protein and ribonucleic acid, enhances the photosynthesis of plant bodies and the synthesis of chlorophyll, promotes the development of crop root systems, enhances the capability of the root systems to convey nutrients and water to plants, improves the stress resistance of the crops, promotes the maturity of grains and increases thousand kernel weight, and achieves the purposes of promoting growth and increasing yield.

Therefore, when the rice seeds are treated, the seed treatment agent containing brassinolide and silatrane is adopted for seed dressing, so that the drug resistance of the rice germination process to closed herbicides such as butafenacin or butafenazamide can be improved, the vigor of rice seedlings is promoted to be vigorous, new roots are rapidly erupted, the rice emergence rate is ensured, and the influence of the closed herbicides such as butafenazamide or butafenazamide on the germination and growth of the rice when the closed herbicides are independently treated is reduced.

Disclosure of Invention

The invention aims to provide a rice seed treating agent with good film forming property, good pesticide effect and stable pesticide effect, which is applied to coating rice seeds, reduces the phytotoxicity of closed herbicides and ensures the emergence rate and normal growth of rice.

A rice seed treatment agent containing brassinolide and silatrane is characterized in that the mass of active ingredients accounts for 5-50% of the total mass of the rice seed treatment agent, the active ingredients are brassinolide and silatrane, the auxiliary agent is 0.5-5.0 parts of a defoaming agent, 1-5 parts of a dispersing agent, 0.1-0.5 part of a warning color, 0.1-1 part of a film-forming agent, 1-5 parts of a thickening agent, 5-10 parts of an antifreezing agent, and water is added to make up to 100%.

Further, the brassinolide is selected from any one of 28-homobrassinolide, 24-epibrassinolide, 25-methyl brassinolide, propionyl brassinolide, 28-epibrassinolide, mixotrophin brassinolide or 14-hydroxy brassinosteroid.

Furthermore, the weight of the brassinolide accounts for 0.001-1% of the total weight of the rice seed treatment agent, and the weight of the silatrane accounts for 4.999-49.000% of the total weight of the rice seed treatment agent.

Further, the antifoaming agent is tween 80 or linseed oil.

Further, the dispersant is lignosulfonate, naphthalene sulfonate formaldehyde condensate or alkyl aryl sulfonate.

Further, the warning color is an aurora green, blue purple or baolan pigment.

Further, the film forming agent is vinyl acetate-ethylene copolymer, sodium alginate or water-soluble polymer polyvinyl alcohol.

Further, the thickening agent is propylene glycol stearyl fatty acid ester or trihydroxy glyceryl stearate.

Further, the antifreezing agent is ethylene glycol or glycerol.

The process flow of coating the rice seeds by using the rice seed treating agent comprises the following steps: selecting rice seeds, dressing seeds and coating, curing a medicine film, statically soaking the seeds, accelerating germination and sowing.

The invention has the beneficial effects that:

(1) the rice seed treating agent containing brassinolide and silatrane has high filming performance, high and stable medicinal effect and coating water soaking and falling rate lower than 2.0%.

(2) The rice seed treating agent containing brassinolide and silatrane is provided, after coating treatment is carried out on rice seeds, the drug resistance of the rice germination process to closed herbicides such as butachlor or butachlor-oxaden can be improved, and the inhibition rate of rice is less than 15%.

(3) The rice seed treating agent containing brassinolide and silatrane is used for coating rice seeds to promote vigorous rice seedling activity and fast new root growth, so that the rice emergence rate and normal growth are guaranteed.

Detailed Description

The invention will be further illustrated with reference to specific embodiments:

example 1

A rice seed treating agent containing brassinolide and silatrane comprises, by mass, 0.001% of propionyl brassinolide, 4.999% of silatrane, 3% of linseed oil, 3% of lignosulfonate, 0.2% of blue-violet pigment, 0.6% of water-soluble polymer polyvinyl alcohol, 4% of propylene glycol fatty acid ester, 5% of ethylene glycol and the balance of water to 100%. The raw materials are processed into the rice seed treating agent by the steps of stirring, shearing, sand milling, filtering and the like according to the conventional preparation of seed coating agents.

Example 2

A rice seed treating agent containing brassinolide and silatrane comprises, by mass, 0.01% of 28-high brassinolide, 9.999% of silatrane, 2% of tween 80, 3% of alkylaryl sulfonate, 0.1% of aurora green pigment, 0.5% of vinyl acetate-ethylene copolymer, 3% of trihydroxy glycerol stearate, 10% of glycerol and the balance of water which is up to 100%. The raw materials are processed into the rice seed treating agent by the steps of stirring, shearing, sand milling, filtering and the like according to the conventional preparation of seed coating agents.

Example 3

A rice seed treating agent containing brassinolide and silatrane comprises, by mass, 0.1% of 24-epibrassinolide, 19.999% of silatrane, 5% of tween 80, 5% of lignosulfonate, 0.15% of a pigment of Baolan, 0.45% of a water-soluble polymer polyvinyl alcohol, 5% of propylene glycol stearate, 8% of ethylene glycol and the balance of water to 100%. The raw materials are processed into the rice seed treating agent by the steps of stirring, shearing, sand milling, filtering and the like according to the conventional preparation of seed coating agents.

Example 4

A rice seed treating agent containing brassinolide and silatrane comprises, by mass, 1% of 28-epihomobrassinolide, 29.999% of silatrane, 4.5% of linseed oil, 3.5% of lignosulfonate, 0.3% of violet pigment, 0.65% of water-soluble polymer polyvinyl alcohol, 4% of trihydroxy glycerol stearate, 9% of glycerol and the balance of water to 100%. The raw materials are processed into the rice seed treating agent by the steps of stirring, shearing, sand milling, filtering and the like according to the conventional preparation of seed coating agents.

Example 5

A rice seed treating agent containing brassinolide and silatrane comprises, by mass, 0.01% of epi-mixed brassinolide, 39.999% of silatrane, 5% of tween 80, 5% of a naphthalene sulfonate formaldehyde condensate, 0.15% of a brilliant blue pigment, 0.45% of sodium alginate, 4% of trihydroxy glycerol stearate, 7% of ethylene glycol and the balance of water, wherein the balance of water is up to 100%. The raw materials are processed into the rice seed treating agent by the steps of stirring, shearing, sand milling, filtering and the like according to the conventional preparation of seed coating agents.

Example 6

A rice seed treating agent containing brassinolide and silatrane comprises, by mass, 0.001% of 14-hydroxy brassinosterol, 49.999% of silatrane, 3.5% of linseed oil, 5% of naphthalenesulfonate formaldehyde condensate, 0.25% of aurora green pigment, 0.6% of water-soluble polymer polyvinyl alcohol, 5% of propylene glycol fatty acid stearate, 8.5% of ethylene glycol, and the balance of water to 100%. The raw materials are processed into the rice seed treating agent by the steps of stirring, shearing, sand milling, filtering and the like according to the conventional preparation of seed coating agents.

Experiment of falling rate of indoor medicine film

The process flow of coating by using the rice seed treating agent of the invention is as follows: selecting rice seeds, dressing seeds and coating, and solidifying the medicine film.

The use effect is as follows: 10g of the coated seeds were soaked in 15mL of water. The contents of effective components of two coated seeds before and after soaking (glacial acetic acid extraction) are respectively measured by high performance liquid chromatography, the coating soaking and falling rate of the product is checked, and the coating soaking and falling effects of the seed treatment agents of examples 1-6 of the invention are measured as follows:

TABLE 1 coating Water-immersion peeling Effect of the examples of the present invention

As can be seen from Table 1, the coating water immersion and abscission rate of the rice seed treatment agent provided by the embodiments 1-6 of the invention is less than 2.0%, which shows that the rice seed treatment agent provided by the invention has the characteristics of good film-forming property, good drug effect, stable drug effect and the like.

Indoor rice safety experiment

The rice safety test using the rice seed treatment agent of the invention is as follows:

the experimental method comprises the following steps: indoor pot test method.

Taking air-dried and sieved soil, and potting; a total of 9 treatments were set up for the in-house potting experiments.

Test 1, 10g of the seed treatment agent in the example 1 is added with water to 25g, and the seed treatment agent and rice seeds are coated and mixed according to the seed ratio of 1: 40;

test No. 2, 12.5g of the seed treatment agent of example 2, water was added to 25g, and the mixture was coated and mixed with rice seeds at a seed ratio of 1: 40;

test (C) 15g of the seed treatment agent of example 3, adding water to 25g, and coating and dressing with rice seeds according to the seed ratio of 1: 40;

test (17.5 g of the seed treatment agent of example 4, water was added to 25g, and the mixture was coated and mixed with rice seeds at a seed ratio of 1: 40;

the test is that 20g of the seed treatment agent of the embodiment 5 is added with water to 25g and coated and mixed with rice seeds according to the drug seed ratio of 1: 40;

test (22.5 g of the seed treatment agent of the embodiment 6), adding water to 25g, and coating and dressing the seeds with rice seeds according to the seed ratio of 1: 40;

comparing the standard, weighing 25g of water, adding 1kg of rice seeds, and coating and dressing the rice seeds according to the pesticide-seed ratio of 1: 40;

a blank control step, weighing 25g of water, adding 1kg of rice seeds, and coating and dressing the rice seeds according to the drug seed ratio of 1: 40;

the rice seeds treated in the above 9 experiments were coated, seed-dressed, dried in the shade, then treated with seed soaking and germination acceleration (seed liquid ratio 1.0: 2.0), and then sowed into the soil (seedling box area 0.0030 m)²) And sowing 30 seeds in each pot.

3d after sowing, test (I) -spray 3% prometryn 16% butachlor emulsifiable solution with standard contrast (I), wherein the dosage of 19% butafenac preparation is 100 g/100 m²The spraying amount of the soil after adding water is 30 kg/mu; while the blank control was sprayed with an equal amount of clear water (control 2), each treatment was repeated 3 times. And (5) investigating the fresh weight of the rice 15 days after the application, and calculating the inhibition rate and the remission rate of the fresh weight of the rice.

TABLE 2 Effect of the examples of the present invention on the alleviation and protection of rice from Ding-Pu phytotoxicity

As can be seen from table 2, the rice seed treatment agents provided in embodiments 1 to 6 of the present invention, after coating the rice seeds, can improve the resistance of the rice germination process to closed herbicides such as butachlor or butachlor, and the inhibition rate of rice is less than 15%.

Rice seedbed plot experiment

Coating and seed dressing of the rice seeds treated according to the 9 experiments, drying in the shade, then soaking and accelerating germination (the seed-liquid ratio is 1.0: 2.0), selecting a greenhouse of 360 square meters for friendship in the suburb of the google city of Heilongjiang province to perform rice seedbed experiments, and uniformly sowing the rice seeds subjected to accelerating germination into the soil (the area of each cell is 30.0 m)²)。

3d after sowing, a test (I) and a standard control (I) are sprayed with 6% oxadiazon and 34% butachlor missible oil, wherein the dosage of the 40% butachlor-oxa preparation is 60ml/360m²The spraying amount of the soil after being mixed with water is 15kg/360 square meters; while the blank control is sprayed with the same amount of clear water (control II). And (5) surveying the number of rice seedlings and the underground fresh weight 15d after the pesticide application, and calculating the rice seedling emergence rate and the underground root system inhibition rate.

TABLE 3 influence of inventive examples on rice emergence and root growth due to Ding-ao phytotoxicity

As can be seen from table 3, examples 1 to 6 of the present invention provide a rice seed treatment agent containing brassinolide and silatrane, which can significantly promote vigorous rice seedling activity and rapid new root emergence after coating treatment of rice seeds, thereby ensuring application of rice emergence rate and normal growth.

Indoor bioassay tests and greenhouse seedbed tests show that the rice seed treating agent containing brassinolide and silatrane can improve the drug resistance of closed herbicides such as butachlor, butachlor and oxa and the like in the rice germination process after coating treatment is carried out on rice seeds, the inhibition rate of rice is less than 15%, vigorous rice seedling activity and rapid new root outbreak can be promoted, the emergence rate of rice is ensured, and the influence of the closed herbicides such as butachlor, dioxa and the like on rice germination and growth when being treated independently is reduced.

In order to make the objects, technical solutions and advantages of the present invention more concise and clear, the present invention is described with the above specific embodiments, but the present invention is by no means limited to these embodiments. The following description is only a preferred embodiment of the present invention, and is only for the purpose of describing the present invention, and should not be construed as limiting the scope of the present invention. It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.