JPS63284103A - Plant growth regulator - Google Patents

Abstract

PURPOSE:To obtain a growth regulator for cultivated plants, showing specific and high plant growth regulating action by synergistic effects, by adding nicotinic acid amide to one or more choline salts. CONSTITUTION:A plant growth regulator containing one or more choline salts (e.g. hydrochloride, phosphate, polyphosphate, sulfate, nitrate, silicate, carbonate, acetate and citrate, especially preferably chlorine chloride) and nicotinic acid amide. When young seedlings of rice and wheats are treated with the regulator, a dry matter amount is increased and complete sound seedlings are obtained. The regulator has high sound seedling growing effects especially on KOSHIHIKARI and SASANISHIKI (high-quality rice) and high yield increasing effects on soybeans. When apples, Japanese persimmons and peaches are treated with the regulator, enlargement of fruit trees are attained, dextrose equivalent is raised, especially coloring is improved and fallen granules of grape after harvesting can be reduced. In cultivated plants such as vegetables, industrial crops and flowers, the regulator shows quantitative and qualitative increase effects on each plant.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a growth regulator for cultivated plants.

(Prior Art) Auxins, gibberellins, cytokinins, ethylenes and the like are conventionally known as plant growth regulators.

Gibberellin is a plant growth promoter that actually has practical effects, auxins such as IAA (indole acetic acid) and NAA (α-naphthalene acetic acid) are rooting promoters, and kinetin is an anti-aging agent. (6-furfurylaminopurine), benzyladenine, and other cytokinins.

(Problems to be Solved by the Invention) The inventors discovered in the aforementioned Japanese Patent Application Laid-open No. 115501/1983 that choline salts are effective in increasing the yield of various crops. Choline salts have the effect of promoting rooting in rice, promoting photosynthesis in wheat, and increasing the yield of onions, potatoes, green onions, etc. However, the action of choline salts as plant growth regulators is not necessarily sufficient, and further improvements are desired.

On the other hand, regarding nicotinamide, Japanese Patent Publication No. 50-264
No. 51 describes the cage promoting effect on paddy rice seedlings and twenty-day radish, and also “Chemical control of plants J VOl.
12. No, 2. In p. 59-69 (1977), Sanui describes the growth promoting effect on paddy rice seedlings, cucumbers, tomatoes, eggplants, etc. However, nicotinamide is currently only partially used as a growth promoter for paddy rice seedlings.

(Means for Solving the Problems) The inventors added various compounds for the purpose of improving the action and effects of choline salts, and conducted pot tests and field tests. As a result, the present inventors have discovered that when nicotinamide is added to choline salt, a specific and high effect as a plant growth regulator is exhibited, which is not observed when using choline salt alone.

That is, the present invention is a plant growth regulator characterized by containing one or more choline salts and nicotinic acid amide.

The choline salts used in the present invention include inorganic salts such as hydrochlorides, phosphates, polyphosphates, sulfates, nitrates, silicates, carbonates, and acetates, citrates, lactates, L(+)tartarates, etc. Organic acid salts such as salts, most preferably hydrochloride (choline chloride), and mixtures of two or more of these salts may also be used.

An example of the physical properties of these choline salts is shown below.

Nicotinic acid amide, which is an active ingredient, is widely used as a food additive and is generally easily obtained by synthetic methods.

The agent of the present invention can be prepared as a wettable powder by mixing these active ingredients with, for example, talc, bentonite, clay, etc., or can also be used by dissolving it in water and preparing a liquid preparation.

Furthermore, it is preferable to add a spreading agent to the agent of the present invention so that these agents can easily adhere to and penetrate into crops.

It can also be used in combination with liquid fertilizers, fungicides, insecticides, and herbicides.

Examples of the spreading agent include nonionic spreading agents such as alkylphenol polyethylene glycol, polyoxyethylene alkyl allyl ether, and polyoxyethylene alkylphenyl ether, anionic spreading agents such as ligurine sulfonic acid, and aliphatic quaternary One type or a mixture of two or more types of cationic spreading agents such as ammonium salts can be used.

The timing of use of the agent of the present invention varies depending on the type of crop, but for fruit trees, it is preferably from 40 days before harvest to 10 days before harvest.

When used as a liquid, the concentration of choline salt is 0.5 to 3.
000 ppm, preferably 1 to 2000 ppm+, and nicotinic acid amide 0.01 to 1000 ppm, preferably 0.1 to 500 ppm. .001～
l:1, preferably 1:0.01 to 1:0.25.

(Effects of the Invention) By treating seedlings of rice and wheat with the agent of the present invention, healthy seedlings with increased dry weight can be obtained. It is particularly effective in raising healthy seedlings of Koshihikari and Sasanishiki, which are rice varieties that tend to spread easily, and has a remarkable effect on increasing the yield of soybeans.

In addition, by treating fruit trees such as apples, peaches, persimmons, grapes, and cherries from two months before harvest to during the harvest period, the enlargement of the fruit trees is promoted, the sugar content increases, and the coloring in particular is improved. For grapes (Kyoho grapes, etc.), it is possible to reduce shedding after harvest.

Cultivated plants such as satsatsuna, occasional crops (tobacco, mulberry, cotton), and flowers show quantitative and qualitative yield-increasing effects for each plant, and the yield-increasing effect of autumn-planted onions is particularly remarkable.

(Example) Next, the content of the present invention will be specifically explained in more detail with reference to formulation examples and test examples of the plant growth 111ff agent of the present invention.

10 parts by weight (hydrating powder) 30 parts by weight of choline phosphate, 0.1 part by weight of nicotinic acid amide, 5 parts by weight of sodium dodecylbenzenesulfonate, 2 parts by weight of polyoxyethylene alkyl allyl ether, and 62.9 parts by weight of talc. were uniformly mixed and ground.

This hydrating agent is generally used after being diluted 200 to 600 times with water.

NILL (liquid) 75χ 45 parts by weight of choline chloride, 10 parts by weight of nicotinic acid amide, 2 parts by weight of polyoxyethylene alkyl allyl ether, and 1 part by weight of laurylmethyl dihydroxyethylammonium chloride are uniformly dissolved in 42 parts by weight of water to make a liquid (water solvent).

On axillary charcoal (soybean field test) Soybean (Suzukari) was sown in the field on May 30th, and 10 a.m. of reagent solution of each concentration was sown on September 17th, 35 days after the start of flowering.
It was evenly sprayed with a sprayer so that the amount was 1,002 ml per layer. The results are shown in Table 1.

Toru Fuwaki (grape) 204 reagents of each concentration were added to grapes (Kyoho) one month before harvest (August 18th)! It was spread at a ratio of /a. Harvesting was carried out on September 18th, and the sugar content and 4
The shedding rate was measured after 1, 8 and 12 days. The results are shown in Table 2, and the sugar content was measured using a refractometer.

Table 2: Onion (onion) On November 6th, autumn planted onions (variety: OY yellow) were planted in the field in 1 section and 2.
It was continuously transplanted. On April 15, about two months before harvest, polyoxyethylene alkyl allyl ether was added as a spreading agent to the reagents at each concentration to a concentration of 100 pp■.
j! Sprayed on foliage at a liquid volume of /a.

The crops were harvested on June 20th and a yield survey was conducted. The results are shown in Table 3.

Table 3: Example of M-side Rice (Rice) Using a beaker with an inner diameter of 4c-1 and a depth of 7.5c-, germinated rice (variety: Nipponbare ) were sown in groups of 5 seeds.

Seedlings were grown for 13 days in a phytotron with a temperature of 25°C during the day and 20°C at night, approximately 28 kilolux, and 12 hours of light per day.
The dry weight of the aboveground and root parts was measured.

The results are shown in Table 4, ``In the test plots in which nicotinic acid amide was added to choline chloride, root axis 1 weight increased significantly.

Table 4

Claims (1)

[Claims] A plant growth regulator containing one or more choline salts and nicotinamide