DD275179A1 - MEANS TO AVOID TRANSPIRATION IN CULTURAL PLANTS AND HOSES - Google Patents

Abstract

The invention relates to a novel antiperspirant agent for crops and willows based on a plant phosphatide mixture, surfactants and organic solvents, which is used in a concentration of 0.05 to 5% in the aqueous emulsion. The new agent is in contrast to the mineral oil-based physiologically and toxicologically safe and readily biodegradable.

Description

This object is achieved according to the invention by mixtures which contain from 20 to 80% by mass of a vegetable phosphatide mixture, 5

contain up to 20% by weight of surfactants and 1% to 70% by weight of organic solvents and after dilution with water in a

Concentration of 0.05 to 5% in the aqueous Em ¹ »ton can be used. The vegetable phosphatide mixtures are mixtures of phospholipids of plant origin. They contain besides lecithin

and cephalin as the main components usually lower levels of other species-specific phospholipids and as

Accompanying substances or impurities specific oils, fatty acids and other fat accompanying substances. The proportion of phospholipids in

vegetable phosphatide mixture is 30 to 80Ma .-%, preferably 50 to 75Ma .-%.

For example, the vegetable phosphatide mixtures fall into the recovery or refining of vegetable oils By-product at low cost. The surfactants used are predominantly conventional nonionic emulsifiers, preferably ethoxylated alkylphenols. If necessary, surfactant mixtures can also be used, for example nonionic and ionogenic Emulsifiers. As organic solvents are ketones or alcohols in the middle chain length range and hydrocarbons

preferred, for example, cyclohexanone or hexanols and xylene.

It has surprisingly been found that the agent according to the invention in comparison to the known agents based on mineral oil

even at lower application concentrations a comparable or improved antiperspirant

Effectiveness shows. The agent of the invention is physiologically and toxicologically safe and without leaving toxic residues

easily biodegradable. Plant damage does not occur.

Due to the advantages of the agent according to the invention, the environmental impact is reduced and there are costs for

saved the treatment of the plants. Another advantage is that the possible uses of

agent according to the invention in the application in forestry, for example in drinking water catchment area, or in the horticultural area are substantially expanded, which is an important compared to the means based on hydrocarbons

Represents progress. The agent according to the invention may be in the form of solutions or emulsions. The formulations are known in the art Made and applied. The invention is explained in more detail by the following examples. embodiments example 1 Formulation of the agent according to the invention as emulsifiable concentrate:

10 parts of a technical mixture of low and highly oxyethylated alkylphenols are mixed with 50 parts of a mixture of cyclohexanone and xylene in the ratio 3: 1 with stirring. To this mixture are 40 parts of a vegetable

Phosphatidgemisches given, which is obtained in the production of soybean oils. It contains about 66% phospholipids, 33% oil

and 1% other ingredients.

Example JS Formulation of the agent according to the invention as emulsifiable concentrate:

15 parts of an ethoxylated alkylphenol with about 11 ethoxy groups are mixed with 40 parts of a technical Hexanolnachlaufs and 5 parts of xylene with stirring. The mixture is then mixed with 40 parts of a rapeseed-phosphatide mixture containing about 66% phospholipids, 32% oil and 2% other ingredients, and homogenized.

Example 3 Influence of the agent according to the invention on the transpiration of tomato plants, variety 'Nadja': The treatment was carried out by sprouting the plants after dilution of the agent according to the invention on the Application concentrations. The results are included in Table 1.

Table 1 Anwandungskonz. water transpiration · variant INVOL .-% Consumption ml / h hemming ngin% - 122.7 - control 1.0 55.0 55.2 örfindungsgomäßos Medium n. Ex. 1 159.5 - control orfindungsgemäßeo 1.0 64.7 59.5 Means. Ex. 2

BolipteM

Influence of the agent according to the invention on the rooting of cuttings of fuchsias and pelargoniums: DIo treatment was carried out by dipping the cuttings (without interface) after dilution of the emulsion concentrate rate

the application concentration. The results are included in Table 2.

Table 2 Anwendungskonz. Growth rate in% r.ac h23Tagen variant INVOL .-% fuchsias pelargoniums _ 57.0 42.8 control erf. acc. medium 0.1 86.2 91.2 n.Bsp.1 erf. acc. medium 0.1 71.4 62.3 n.Bsp.2

Claims (4)

1. means for transpiration cropping in crops and perennials exposed to a dry stress caused by technical processes, characterized by a mixture of From 20 to 80% by mass of a vegetable phosphatide mixture, from 5 to 20% by mass of surfactants and
15 to 70% by weight of organic solvents, which is used after dilution with water in a concentration of 0.05 to 5% in the aqueous emulsion. 2. Agent for Transpirationshemmun ^ to point 1, characterized in that the plant phosphatide mixture 30 to 80 wt .-%, preferably 50 to 75Ma .-% phospholipids. 3. An antiperspirant agent according to item 1, characterized in that nonionic surfactants, preferably ethoxylated alkylphenols, are used. 4. means for inhibiting the transpiration according to item 1, characterized in that are used as organic solvents predominantly ketones or alcohols in the medium chain length range and hydrocarbons. Field of application of the invention The invention relates to an agent for inhibiting the transpiration in crops and woody plants, which can be used in the forestry and horticultural sector, for example in the preschooling of plant material, the growing of cuttings and transplanting. Characteristic of the known technical solutions Forestry and horticulture often suffer from transpiration losses as a result of technological processes and extreme environmental conditions, which can lead to damage or even dying of crops. Influencing the water balance of crops, especially under dry stress or after transplanting, is therefore of great economic importance. To reduce transpiration losses, various measures are known. In addition to the use of mechanical means, such as the wrapping of the plants with plastic film, a dipping treatment of the plants or plant parts is carried out by special means. Their effect is based on the formation of a protective film on the plant and / or on influencing the function of the necessary for the gas exchange stomata. An antiperspirant protective coating is, for example, agents based on oils or polymers, which may be both of natural and synthetic origin. As an oil-based antiperspirant are emulsifiable mineral oils (DE-OS 1767427), which can be modified by the addition of chlorinated paraffins (DD-WP 123052) or paraffin waxes (US-PS 3847641) known. DD-WP 229580 describes mineral oils compounded with biolipid extract as antiperspirant. The antiperspirant agents based on mineral oils have the disadvantage that in addition to the effect of the transpiration reduction certain plant physiological processes are negatively affected, which can be in a long-lasting Wachsfjrhsdepression or ir · damage to plants. In addition, the mineral oils are biodegradable biodegradable and can lead to groundwater contamination, which has a high impact on the environment and a use z. B. in drinking water protection areas excludes. Object of the invention The aim of the invention is an agent for inhibiting the transpiration in crop plants and woody plants, which has high efficacy at low application concentrations and is physiologically and toxicologically harmless. This should reduce the required application rates, widen the application possibilities and reduce the environmental impact. Explanation of the essence of the invention The invention has for its object to provide an agent for inhibiting the transpiration in crops and woody plants using natural resources and conventional surfactants and solvents that are inexpensive and are available in sufficient quantities.