JPH06172120A - Method for promoting growth of crop - Google Patents

Abstract

PURPOSE:To obtain a growth promoting method for increasing yield by promoting growth of crops after germination. CONSTITUTION:Seeds of crops, seed potatoes or bulbs are treated with strawberry juice or extract of strawberry containing natural abscisic acid which is a kind of plant hormone in large quantities. As the strawberry juice or extract of strawberry, ground strawberry can directly be used or dried material of the ground strawberry may be used or further, a filtrate obtained by removing a solid ingredient from the ground material or its dried material or a solution obtained by adding a hydrophilic organic solvent to the ground material and then removing the solid ingredient or its dried material may be used.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for promoting the growth of crops. More specifically, it relates to a growth promoting method for increasing the yield by promoting the post-emergence growth of a crop.

[0002]

2. Description of the Related Art An increase in yield by promoting the growth of crops is the greatest challenge of agricultural technology. Many techniques have been devised as methods and means for this purpose.

One of the methods is to promote the growth of crops and increase the yield by utilizing plant hormones. The use of the plant hormones gibberellins, auxins and kainins has already become popular as a technology for promoting the growth of some crops and increasing the yield (“fine chemical”).
July 15, 1984, pp. 3-18, "Current status and development trends of the use of plant growth regulators").

[0004]

However, the method of utilization and the degree of efficacy for producing practically effective efficacy are still limited, and the development of a more effective process has no significance in terms of agricultural production. large.

Natural abscisic acid is known as one of plant hormones together with gibberellin, auxin, kainin and the like. It is known that the abscisic acid is related to the growth amount based on the results of the study on the relationship between the fluctuation of the endogenous amount in the plant body during the growth process of the plant and the growth amount (Ann. Rev. Plant Physiol. Plant Mol. . Biol. 198
8th Year Vol 39, pp. 439-473, "Metabolism and
Physilogoy of Abscisic acid "). It is also known that abscisic acid has an action of improving the germination rate of seeds which have deteriorated in germination ability due to aging (Japanese Patent Publication No. 1-368).
No. 01 publication).

However, the effect of widely promoting the growth of crops and increasing the yield is not known.

[0007]

[Means for Solving the Problems] The inventors of the present invention have diligently studied the search for an effective method superior to the conventional knowledge regarding the technology for promoting crops by utilizing plant hormones, and found that natural abscisic acid has an excellent effect. I found that I would play, and proposed it.

[0008] Furthermore, as a result of intensive studies of the ingredients of edible fruits, which are safer for use in food, the present inventors have found that
The inventors have found that strawberry juice or an extract from strawberry has an excellent effect of promoting growth, and arrived at the present invention.

That is, the present invention provides a method for promoting growth of crops, which comprises treating crop seeds, seed crop seeds, seed potatoes or bulbs with strawberry juice or an extract from strawberry. is there.

The present invention will be described in detail below.

In the present invention, it is important to use strawberry juice or an extract from strawberry as a growth promoter. The extract from strawberry is, for example, strawberry extracted with water and / or a hydrophilic organic solvent, and examples of the hydrophilic organic solvent include ethyl alcohol, methyl alcohol, acetone and the like.

As strawberry juice or strawberry extract,
You can mash the strawberries and use them as they are,
It may be a dried product of mashed food,
It may be a filtrate obtained by removing solid components from a ground product or a dried product thereof, or a solution obtained by adding a hydrophilic organic solvent to a ground product and removing a solid component, or a dried product thereof.

In the present invention, rather than using strawberry juice as a growth promoter as it is, an extract from strawberry is preferably used as a growth promoter.

The type of strawberry used in the present invention is not particularly limited as long as it contains a large amount of abscisic acid, and any kind can be used. Abscisic acid 10p
pm, and in extreme cases, those containing 30 ppm or more can be used particularly advantageously. Specific examples of these include, for example, Onamine, Hokko early life and the like.

In the present invention, when strawberry juice or strawberry extract is used as a growth promoting agent, it is usually used as an aqueous solution containing 0.1 to 500 g, preferably 1 to 10 g, of fresh weight of strawberry in 1 liter. .

In the present invention, it is important to treat strawberry juice or strawberry extract on crop seeds, seed potatoes or bulbs before planting. As the treatment method, dipping treatment is usually used. The immersion time is usually several seconds to 2 days, preferably 30 minutes to 1 day.

In the present invention, the treatment with strawberry juice or an extract from strawberry is carried out before planting, that is, generally immediately before conventional planting, that is, several days before planting in normal farm work, although it varies depending on the crop. It is preferable to carry out during the period from to.

In the growth promoting method of the present invention, strawberry juice or an extract from strawberry is treated with other plant growth regulators, auxiliaries such as spreading agents, emulsifying agents, wetting agents, dispersing agents,
You may use together with a fixing agent, a disintegrating agent, etc. In the growth promoting method of the present invention, strawberry juice or an extract from strawberry can be used in any formulation. For example, it may be a powdery or granular solid containing strawberry juice or an extract from strawberry, or it may be prepared by adjusting these to a high concentration in a solvent such as a small amount of water. Alternatively, these may be adjusted to a use concentration with water.

Examples of the auxiliary agent used here include the following. As the liquid carrier, water, ethanol,
Examples thereof include alcohols such as methanol. As the emulsifier or dispersant, a surfactant is usually used, and examples thereof include anionic surfactants such as higher alcohol sodium sulfate, stearyl trimethyl ammonium chloride, polyoxyethylene alkylphenyl ether, lauryl betaine, and cationic surfactants. Examples include activators and zwitterionic surfactants. When using these carriers, it is important to examine and use the most suitable one for promoting the effect of the strawberry extract.

The crop to which the growth promoting method of the present invention is applied is not particularly limited. For example, root vegetables such as radish, beet, and potato that harvest roots, fruit vegetables such as tomatoes and cucumbers, grains and beans such as rice, wheat, adzuki beans, spinach, leaf vegetables such as cabbage, and stems and stems are used. Examples include sugar cane.

[0021]

[Action] Strawberries contain a large amount of ascorbic acid, which has an effect of preventing discoloration of fruits and vegetables, and also contain phytohormones, which have an effect of suppressing the production of ethylene and an effect of suppressing evaporation of water. A sufficient growth promoting effect is recognized by treating the seeds, seed potatoes or bulbs of the crop with strawberry juice or an extract from strawberry. A germination promoting effect is also recognized at the same time. When the present inventors studied the components of various strawberry fruits, the present inventors found that a certain type of strawberry fruit had a surprisingly high concentration of abscisic acid, which is one of the plant hormones, of 10 ppm or more. I found it for the first time. This is considered to be one of the factors that give the effect of the present invention.

[0022]

EXAMPLES The present invention will be specifically described below with reference to examples.

Example 1 (Preparation of treatment liquid) Strawberry (variety: Onamine) 500 g 50
It was soaked in 0 ml of 80% methanol and ground with a homogenizer to make it uniform. Insoluble matter was removed by filtration, concentrated, and then freeze-dried, and the dried matter was ground in a mortar to give 50 g of a strawberry extract. In the following examples, 1 g of this strawberry extract was dissolved in 100 ml of water and used as an aqueous extract solution of strawberry.

Example 2 (Promotion effect of radish growth on radish) At the end of April, seeds of daikon radish (variety: Akamalcomet) were diluted for 20 hours with an aqueous solution of strawberry extract 2-fold and 20-fold, respectively. In the liquid
Alternatively, it was soaked in water as a control area and immediately sown in an open field, and then it was subjected to general customary cultivation management by a conventional method.
Twenty days after seeding, 20 strains with good growth were harvested from each plot, and the root weight (g) was measured. Table 1 shows the average weight
Shown in.

[0025]

[Table 1]

As is apparent from Table 1, the seed treatment with the extract from strawberry showed an excellent promotion of growth.

Example 3 (Growth-promoting effect of spinach) At the beginning of April, spinach seeds were used for 24 hours, and an aqueous extract solution from strawberries was used for 2 hours.
Immersion in each of the solutions diluted by 20 times and 20 times, or by immersing in water as a control, the seeds were immediately sown in an open field, and the cultivation was controlled by a conventional method. 35 days after sowing, 3 from each ward
0 strains with good growth were harvested, and the foliage weight (g) was measured. The average weight is shown in Table 2.

[0028]

[Table 2]

As is clear from Table 2, excellent enhancement of growth was observed by treating the seed with the extract from strawberry.

Example 4 (potato growth promoting effect) At the beginning of September, potato (cultivar: Danshak) seed potatoes were diluted for 5 hours with an aqueous solution of strawberry extract diluted 2-fold and 20-fold, respectively. Alternatively, it was dipped in water as a control plot, immediately planted in an open field, and managed under general customary cultivation by a conventional method. Eighty days after planting, the plants were dug and the average weight (g) of potatoes per strain was measured for each 20 strains. The results are shown in Table 3.

[0031]

[Table 3]

As is clear from Table 3, the treatment of seed potato with the extract from strawberry showed an excellent enhancement of growth.

[0033]

According to the present invention, an excellent effect of promoting the growth of crops can be obtained. That is, the yield can be increased by promoting the growth of the crop. It can also promote germination of crops.

Claims (1)

[Claims] 1. A method for promoting growth of a crop, which comprises treating seeds, seed potatoes or bulbs of a crop with strawberry juice or an extract from strawberry.