Process and composition for coating propagation material

A technology of coating materials and plant propagation materials, which is applied in the field of coating compositions for plant propagation materials, can solve problems such as unsatisfactory effects, and achieve the effects of reducing flying dust/flaking, reducing phytotoxicity, and reducing loss rate

Inactive Publication Date: 2008-06-25
SYNGENTA PARTICIPATIONS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when said polymer coatings are used in pesticide seed treatments and / or certain variable quality seed lots, sometimes the effectiveness of existing seed polymer coatings and processes is somewhat less than ideal

Method used

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  • Process and composition for coating propagation material
  • Process and composition for coating propagation material
  • Process and composition for coating propagation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0094] In order to enable those skilled in the art to better implement the present invention, the following examples are given by way of illustration rather than limitation. Registered trademarks and other designations denote the products listed below. The provider is known or easy to find.

[0095]

Embodiment A-D

[0096] Examples A-D - Conventional pesticide seed treatment

[0097] Examples A-D illustrate corn and cotton seed dressing with conventional pesticide seed treatments. 500g of seeds were placed in the treatment cartridge of the Hege 11 seed processor. An aqueous pesticide slurry is then prepared by mixing the pesticide, colorant, polymer, neutralizer (if any), and water until a homogeneous phase is formed. The Hege engine was turned on and the resulting slurry was coated onto the rotating disc of the seed processor via a syringe into a tumbling bed. When the seeds are almost dry (takes up to 1 minute) stop stirring. Table 1 details the seed treatment compositions used. The numbers given in this table represent the weight of ingredients in g / 500g of seeds. All machine settings were made according to the manufacturer's recommendations and were within the routine ranges understood by those skilled in the seed coating art.

[0098]

Embodiment 1

[0099] Example 1 - Michael addition

[0100] Example 1 illustrates the preparation of polymeric protective coatings on pesticide-treated corn and cotton seeds. Corn and cotton seeds were treated with pesticides according to the methods of Examples A and C, respectively. 500 g of pesticide treated corn or cotton seeds, as appropriate, were placed in the treatment cartridge of the Hege 11 Liquid Seed Treater as described above. Then, 3.00 g of polyethylene glycol diacrylate (Mn=263), a polypolyethylenically unsaturated monomer obtained from Sigma-Aldrich, Milwaukee, WI, was injected onto the rotating disk of the seed treater. After the material has substantially coated the rotating seeds, the rotation is briefly stopped to allow the rotating disk to be wiped clean to prevent reactions on the disk. Subsequently, the diamine, 3.79 g of a 35 wt % aqueous solution of hexamethylenediamine, was injected onto the rotating disk of the seed processor. The reaction occurs within second...

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Abstract

The present invention provides a process for coating a plant propagation material, including a seed, comprising: a.) providing a propagation material, such as seed, to be coated; b.) applying to the propagation material a composition comprising at least one reactant having reactive functionality and, optionally, at least one active ingredient; and c.) polymerising, crosslinking, curing or otherwise reacting the reactant having reactive functionality on the surface of the plant propagation material to form a coating thereon which may encompass an a.i., when present. The present invention further provides a method for enhancing the safety, quality and / or viability of a plant propagation material, including a seed, comprising providing a coated material having less dust-off.

Description

field of invention [0001] The field of the invention relates to polymer coated plant propagation material, methods of coating, compositions for coating plant propagation material and methods of use thereof. Background technique [0002] Commercial agricultural production depends on the use of seeds with excellent germination and high resistance to soil, air and waterborne diseases and animal pests. The benefits of treating cultivated seeds are well known. Among these benefits are reduced or substantially eliminated occurrences of stand loss due to disease and animal pests such as insects and nematodes. [0003] Seed coatings have long been used as a means of protecting and enhancing the survival of the natural seed coat, controlling seed germination, and / or increasing seedling survival and growth. Seed coatings containing insecticides, fungicides or other active ingredients and polymers to retain the active ingredients on the seed are generally applied to the surface of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/06
CPCC09D4/00A01N25/00A01N51/00A01C1/06A01N43/90A01C1/00A01N43/54A01N43/36A01N2300/00A01N25/22A01N25/26A01N31/04A01N57/06
Inventor V·周A·尼尔森J·比利斯
Owner SYNGENTA PARTICIPATIONS AG
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