JPH07126108A - Plant dormancy breaking agent - Google Patents

Abstract

PURPOSE:To provide a plant dormancy breaking agent consisting of a sulfide such as methyl disulfide, allyl sulfide or allyl disulfide. CONSTITUTION:A plant being in dormancy is exposed to a sulfide compound, in a gaseous state, such as methyl disulfide, allyl sulfide or allyl disulfide each found in the essential oil ingredients of garlic, or coated with such a compound, thus breaking its dormancy and promoting its germination. With this treatment, it has become possible to hope the early harvest and higher yield of garden stuff.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant dormancy breaker having an essential oil component of garlic or a sulfide compound obtained by synthesis as an active ingredient and used in fields such as agriculture and horticulture.

[0002]

Conventionally, lime nitrogen treatment, ethylene treatment,
Gibberellin and cytokinin treatments are effective for breaking dormancy of plants and have been applied to increase the yield of agricultural crops. In the Okayama region, etc., a method of applying garlic juice is used to accelerate the germination of grapes.
There was a problem in the method.

[0003]

[Problems to be solved by the invention] Horticultural crops such as fruit trees,
Above all, it is important to artificially break down the diapause of high-grade fruit trees, etc., and to lead to early harvesting. Therefore, there is a need for a method that can break the diapause of high-class plants with little phytotoxicity and that is easy to handle.

[0004]

DISCLOSURE OF THE INVENTION The present inventors have conducted a long-term study on plant hormones, and based on the results, various studies have been carried out for the purpose of awaking the dormancy of plants, especially for garlic essential oil. When piled up,
It was demonstrated that sulfides, which are components of garlic essential oil, have a plant dormancy-breaking action, and the present invention was accomplished by achieving the intended purpose.

The effects obtained by the present invention will be described with reference to the following examples.

[0006]

[Example] A kind of grape, Kyoho, was adjusted to one bud to make a cutting, and after application of methyl sulfide, methyl disulfide, allyl sulfide and allyl disulfide and air bath treatment, water soaking was performed. Germination was observed by placing in a thermostatic chamber at ℃. The desiccator with water at the bottom was used as a control. As shown in FIG. 1, in the case of the air-bath treatment, germination was significantly promoted in all treatment groups except methyl sulfide, the germination rate was high, and the effect of methyl disulfide was particularly remarkable. In the coating treatment, germination was promoted by allyl disulfide, and the effect of allyl disulfide was particularly remarkable. When the coating concentration was changed, germination was promoted at all concentrations of allyl disulfide and methyl disulfide, and the effect of allyl disulfide was particularly large. The germination rate of both substances tended to be better as the concentration was higher.

In addition, the same method is being applied to high-grade citrus fruits and the like to raise the intended purpose.

[0008] In addition to cuttings, the method can be applied to greenhouses or open-air plants.

The sulfides used as a plant germination breaker are obtained by dehulling garlic, washing it with water, grinding it, subjecting it to an enzyme action, and then steam distilling it. It is possible to use the collected allyl disulfide, methyl disulfide and the like by separating the effluent from the effluent to collect the essential oil, dehydration and fractionation.

Further, those prepared by synthesizing methyl disulfide and the like from allyl bromide, methyl iodide, sodium sulfide and the like by a conventional method can be used.

[0011]

INDUSTRIAL APPLICABILITY According to the present invention, it was discovered that sulfides such as allyl disulfide and methyl disulfide found in garlic break down dormancy of plants and promote germination. It can be expected to promote crop harvest and increase yield.

[0014]

[Brief description of drawings]

FIG. 1 is a graph showing the influence of each sulfaid on the germination of cuttings of Kyoho. The upper figure is a graph of air bath treatment, and the lower figure is a graph of coating treatment. The horizontal axis represents the number of days after cutting, and the vertical axis represents the germination rate (%).

[Explanation of symbols]

 1 Methyl sulfide 2 Methyl disulfide 3 Allyl sulfide 4 Allyl disulfide 5 Control

Claims (1)

[Claims] 1. A plant diapause breaker comprising various sulfides such as methyl disulfide, allyl sulfide and allyl disulfide as active ingredients.