DE1273896B - Wound care products for plants - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

German class:

Number:
File number:
Registration date:
Display day:

AOIn

C07d

451-3 / 04
12 ρ-1/10

P 12 73 896.4-41 (R 42226)

December 16, 1965

July 25, 1968

The invention relates to a wound care agent for plants for wound closure and in particular for Refinement based on known hard paraffin or wax mixtures. The wound care product after The invention can be used primarily in viticulture for the refinement of vines.

In the production of grafts and grafting in plant breeding occur every year large failures result from the failure, a smooth and unhindered coalescence of the partners bring about. Of the many factors to be considered, some can now be mastered. In this way it is possible to maintain a suitable temperature and a favorable moisture content in the environment to set individual cultivation stages. So far, however, it is not possible to treat infections of the sensitive Switch off grafts caused by fungi or bacteria, through their action normal callus formation is prevented.

Special difficulties arose for a long time in the production of grafted vines for the new plant millions of vineyards are required annually. Documents like Edelreiser were increasingly infested with the botrytis fungus. The resulting failure rates Grafts were 60 to 70%.

It is known that a reduction in the infestation to about 30 to 40% can be achieved by removing the refinement point paraffin was waxed or waxed or the vine wood was disinfected before refining Solutions has been dipped.

It turned out, however, that under the wax layer for the botrytis fungus particularly favorable Growing conditions prevailed, so that despite superficial disinfection before grafting Further growth of the fungus under the wax could be observed. This caused callus formation and the intergrowth was disturbed and the rate of loss in the vine grafting could not be significantly reduced 30% can be reduced.

Similar problems exist with the grafting of other plants and also with pure wound closure.

It has now been found a wound care product for plants for grafting and for wound closure, the characterized in that the hard paraffin or wax mixtures known per se for this purpose 8-Hydroxyquinoline and / or carbonic acid methyl-5-chloro-7-bromo [quinolyl- (8)] ester contain. The proportionate content of these active ingredients can be, for. B. be about 0.5%. The use of 8-hydroxyquinoline is known as a general fungicide. The wound care product for plants

Applicant:

Riedel-de-Haen Aktiengesellschaft,

3016 Seelze, Wunstorfer Str. 40

Named as inventor:

Dr.-Ing. Horst Liebig, 3052 Bad Nenndorf;

Dr. Konrad Schulze,

Dr. rer. nat. Theo Döldissen, 3016 Seelze

Carbonic acid - methyl - 5 - chloro - 7 - bromo - [quinolyl - (8)] ester and its use as a fungicide has not yet been described.

Most fungicides have been found to be unsuitable as an additive to wound care products. The concentration of fungicides in wound care products is also of certain importance.

Despite a long exposure time, an antifungal substance in wound care products must be absolutely plant-friendly the callus formation, the intergrowth of the graft partners as well as the later root formation may be of the documents do not interfere in any way and do not prevent the eyes from appearing on the noble rice or .. In order to prevent the paraffin coating from lifting off during further growth, z. B. to be able to protect cavities and new plant parts when the eye shoots out, it should be easily diffusible and have a sufficient vapor pressure. After all, one must good solubility in the wax or paraffin mixture used is required.

By using the wound care agent according to the invention, z. B. in vineyard refinement, the failure rate can be significant, to about 10% » be reduced.

Example 1

One-eye cuttings 7 to 8 cm in length are cut from botrytis-infested timber from noble vines. At least ten cuttings per attempt are placed in hard paraffin liquefied by heating. or wax mixtures dipped.

A commercially available hard paraffin, hereinafter called A, was used. In addition, was

... 809 587/557

a commercially available wax, hereinafter referred to as B, is used.

a) Paraffin A.

b) wax B.

c) Paraffin A + 0.5 ° / ₀ 8-hydroxyquinoline.

d) Paraffin A + 1% 8-hydroxyquinoline.

e) Paraffin A + 0.5% carbonic acid methyl [5-chloro-7-bromo-8-hydroxyquinolyl- (8)] ester.

f) without treatment.

The pegs were then placed in groups in bowls lined with moist cellulose, which lasted for 20 days were stored in a climatic room at 26 to 28 ° C. After that, the shoot and callus formation were as well the fungal attack is rated.

Result

The group f) that remained without treatment showed neither potassium nor shoot formation. At the top Cut surfaces and dense botyrtle turf around the eyes, 100% damage.

The test groups a) and b) immersed in commercially available paraffins showed a limited amount of callus formation and the beginning of eye drooping. However, the expelling eyes soon turned brown due to fungal attack and died. Damage 100 ⁰ I ₀ .

When evaluating the formulations of the invention), d) and e), however, c was at 90 7o of the cuttings to watch a good callus formation, and the eyes sprouting averaged 75 7 ₀ -

Example 2

The effect from a distance was demonstrated as follows: The vine swabs produced as in Example 1 were opened Glass microscope slides placed in petri dishes with a thin layer of one spiked with botrytis spores Contained nutrient agars. The glass slide prevented direct contact of the swab with the Nutrient agar and thus also a transfer of the active ingredient through diffusion in the liquid phase.

Result

Developed in the bowls into which vines from test groups a), b) and f) were introduced a dense mushroom lawn that grew over the glass plate on the vine.

Developed in the bowls into which vines from test groups c) to e) were introduced the botrytis lawn with the formation of an embossed zone of inhibition around the glass plate is only at the edge the Bowl.

vines were used per test group, had the following results:

eyes
failure Boxes
failure Drive
length Untreated
Paraffin A 26 7o
18%
18%
6%
10% 46%
28%
26%
14%
10% 2.7 cm
4.4 cm
4.4 cm
3.6 cm
3.7 cm Wax B Paraffin A + 0.5% 8-Hy
droxyquinoline
Paraffin A + 0.5% carbon
acid-methyl-5-chloro-
7-bromo [quinolyl- (8)] -
ester

The results clearly show the success of the anti-fungal additive, namely reducing eye and box failures to at least half to a third,
ao example4

The following table shows how sensitive the grafts react to a change in the active ingredient:

Test facility analogous to example 3

Paraffin A + 0.5% carbonic acid methyl S-chloro ^ bromo [quinolyl- (8)] ester

Paraffin A + 0.5% carbonic acid butyl [quinolyl (8)] ester

Paraffin A + 0.5% 5-chloro-7-bromo-8-hydroxyquinolm

4 untreated

Crate failure

10% 22%

36% 46%

Eye loss

10% 10%

18% 26%

Example 3

Despite the chemically very similar structure, the known ones used in experiments 2 and 3 show Substances have almost the same box failure as the control, so practically no effect. In the example 2 a late effect can be clearly seen, since the eye loss is only 10%, the box loss but increases to 22%.

Claims (2)

Patent claims: 1. Wound care products for plants for refinement and for wound closure based on a hard paraffin or wax mixture, characterized by a content of 8-hydroxyquinoline and / or carbonic acid methyl 5-cMor-7-bromo [quinolyl- (8)] ester. 2. Wound care agent according to claim 1, characterized in that the content of 8-hydroxyquinoline and / or carbonic acid methyl 5-chloro-7-bromo [quinolyl- (8)] ester total is about 0.5%. Experiments carried out under normal practical conditions with grafted vine Riesling on a substrate 5 c in drive boxes with at least 50 grafted publications: German Auslegeschrift No. 1116 937; British Patent No. 839,789. A test report was also laid out in the announcement.