CZ25632U1 - Coating composition for coating seeds - Google Patents

Description

The Industrial Property Office does not ascertain in the registration procedure whether the subject of the utility model meets the conditions of eligibility for protection pursuant to Section 1 of Act no. No. 478/1992 Coll.

CZ 25632 Ul

Coating agent for seed coating

Technical field

The invention relates to a coating composition containing symbiotic mycorrhizal fungi for the coating of seeds of agriculturally important crops before sowing.

BACKGROUND OF THE INVENTION

Various types of coating preparations or mixtures and methods of coating the seeds are commonly used in plant production for better handling during sowing or as a method of application of various substances (eg fertilizers, pesticides, growth promoters, etc.) that protect and / or promote emergence and plant growth.

One of the known solutions includes CS patent publication No. 90159 describing the possibility of utilization of charcoal dust, ash, resp. other substances, mixed with sugar molasses for seed coating. CS Patent Publication No. 165016 discloses seed composition based on natural organic sorbents, manure, organic sludge, waste water or molasses and lime raw materials. Also known is CZ patent specification 303124, which describes the use of biohumus based on the excreta of red californian earthworm as a coating composition.

Also known is a method of packaging which is based on the use of an adhesive base, eg polyacrylamide, applied to the seed surface together with a mixture of powdered peat and other chemicals.

The disadvantage of these solutions is primarily the fact that they describe the composition of the coating compositions which do not contain any biotic component in the form of microorganisms, not only of fungal origin.

The essence of the technical solution

A seed dressing composition according to the present invention comprising inoculum based on symbiotic mycorrhizal fungi comprising fragments of plant roots colonized by at least one species of endomycorrhizal fungus, preferably endomycorrhizal fungi of the genus Glomus, and mixtures comprising starches and modified starches. in aqueous solution, wherein the mixture comprising starches and modified starches is a mixture with water in a weight ratio of 40 parts starch and modified starches: 60 parts water. The coating composition then comprises 1 to 10 wt. % symbiotic fungal inoculum comprising fragments of plant roots colonized by at least one species of endomycorrhizal fungus per kg of coating composition and 90 to 99 wt. % of a mixture comprising starches and modified starches in aqueous solution per kg of coating composition.

The composition of the mixture comprising starches and modified starches in aqueous solution has no negative effects on the vitality and germination of symbiotic mycorrhizal fungi.

The efficacy of the seed coating coating composition is based on the action of symbiotic mycorrhizal fungi that produce mycorrhizal symbiosis with the roots of the host plant, i. a mutually beneficial relationship between plant and fungus, typical of more than 90% of all plant species. The mycelium of the symbiotic mycorrhizal fungus is able to gradually colonize the growing root system of the plant and significantly contribute to improving the plant's nutrient uptake (especially phosphorus and potassium), stimulating its growth, possibly improving the nutritional quality of crop parts in farm crops and improving general health throughout life plant. By forming a network of external extracorporeal mycelium in the soil, the active root absorbing surface is increased many times and thus the ability to extract nutrients from the growing substrate. Mycorrhiza also helps to protect the root system of the plant against various pathogens, such as fungal pathogens, while increasing the plant's resistance to other environmental stressors, both biotic and abiotic, such as lack of moisture, transplant shock, and the like.

-1 CZ 25632 Ul

The coating composition containing symbiotic mycorrhizal fungi according to the present invention is designed to provide the plant with the benefits of combining it with a beneficial symbiotic fungus.

Examples of technical solution

Example 1

The seed coating coating composition is 1 wt. % inoculum based on plant root fragments colonized by symbiotic mycorrhizal fungus of the genus Glomus with a fragment size of 250 µm, and 99 wt. % of a mixture based on starches and modified starches in aqueous solution per kg of coating material.

Example 2

The seed coating coating composition is 10 wt. % inoculum based on plant root fragments colonized by symbiotic mycorrhizal fungus of the genus Glomus with a fragment size of 100 µm, and 90 wt. % of a mixture based on starches and modified starches in aqueous solution per kg of coating material.

Example 3

The coating composition for seed coating consists of 5 wt. % inoculum based on plant root fragments colonized by symbiotic mycorrhizal fungus of the genus Glomus with a fragment size of 150 µm, 95 wt. % of a mixture based on starches and modified starches in aqueous solution.

The examples given are illustrative only and do not exhaust the fully possible combinations of weight ratios of the coating composition components.

Industrial applicability

The seed coating coating according to the present invention is useful for coating economically important agricultural crops and / or ornamental plants, in particular cereals, vegetables, clovers, etc.

PROTECTION REQUIREMENTS

Claims (5)

CLAIMS 1. A seed dressing composition comprising a symbiotic mycorrhizal fungus inoculum comprising fragments of plant roots colonized by at least one endomycorrhizal fungus species and a mixture comprising starches and modified starches in aqueous solution. A seed dressing composition according to claim 1, characterized in that it comprises 1 to 10 wt. % symbiotic fungal inoculum comprising fragments of plant roots colonized by at least one species of endomycorrhizal fungus per kg of coating composition and 90 to 99 wt. % of the mixture comprising starches and modified starches in aqueous solution per kg of coating mixture. A seed dressing composition according to claims 1 and 2, wherein the symbiotic mycorrhizal fungus inoculum comprises fragments of plant roots colonized by at least one species of endomycorrhizal fungus of the genus Glomus. -2GB 25632 Ul A seed coating composition according to claims 1-3, wherein the mixture comprising starches and modified starches is a mixture with water in a weight ratio of 40 parts starch and modified starches: 60 parts water. A seed coating composition according to claims 1-4, wherein the plant root fragments are typically 100 to 250 microns in size.