JPH0578521B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a seed treatment agent, and more particularly to a seed treatment agent characterized by containing one or more compounds of choline or its salt. [Prior Art] Conventionally, as a crop growth promoter through seed treatment, rice germination promotion through calcium peroxide treatment,
It is known that brassinolide treatment can promote the growth of various crops. However, it is not known that seed treatment with choline or its salts significantly promotes crop growth. [Problems to be Solved by the Invention] Generally, in crop cultivation, it is desired to improve the quality of crops or increase their yield, but the effects have not always been satisfactory. The present inventors have discovered that by treating crop seeds with choline or its salts, various effects that were not seen when crop foliage was treated with choline or its salts were found. That is, by using the seed treatment agent according to the present invention on seeds, it is possible to increase crop yield, promote growth, develop healthy seedlings, improve quality, improve germination rate, improve cold resistance,
We have completed the present invention by discovering that rooting can be promoted and cultivation efficiency can be improved since low-temperature cultivation has become possible. [Means for solving the problem] Target crops for using the present invention include wheat, corn, other cereals, soybeans and other legumes, cosmos and other flowers, radish, carrots, tomatoes, cabbage, and lettuce. , vegetables such as Chinese cabbage,
It is used for value crops such as chili peppers, melons and other fruits, and crops such as lawns. Note that these crops are merely examples, and the use of the agent of the present invention is not limited to these crops. In the present invention, choline salts include, for example, hydrochloride,
Inorganic salts such as phosphates, polyphosphates, sulfates, nitrates, silicates, carbonates, acetates, citrates,
It refers to organic acid salts such as lactate and L(+)tartrate. The agent of the present invention containing these choline compounds can be formulated into any conventionally known dosage forms such as powder, aqueous solution, emulsion, aqueous or oily suspension. This agent can also be used in combination with liquid fertilizers, fungicides, insecticides, and plant growth regulators. In addition, when using the agent of the present invention, it is preferable to use a surfactant in combination so that the agent can easily penetrate into the seeds. When using the present invention agent, a method is usually adopted in which seeds are soaked in an aqueous solution of the present invention agent. In this case, the concentration of the aqueous solution of the present invention agent varies depending on the type of compound and the type of plant, but in general, 0.3~3000ppm,
Preferably it is 1 to 2000 ppm. Further, when using the agent of the present invention, the temperature of the aqueous solution is 0 to 35°C, preferably 10 to 25°C. Water is generally used as a diluent, that is, a solvent when using the agent of the present invention, but a method is used in which the solvent is removed after immersion in a solution diluted with an organic solvent such as methanol or ethanol. It is also possible. When seeds are immersed in a solution containing the agent of the present invention, the immersion time is generally 0.5 to 72 hours, preferably 5 to 48 hours. Note that it is preferable to wash the seeds with water after soaking. [Example] The present invention will be explained in more detail with reference to Examples below. Example 1 Wheat seeds (Norin No. 61) were immersed in solutions of various concentrations of choline chloride containing 50 ppm of a nonionic surfactant (polyoxyethylene alkyl allyl ether) at room temperature for 24 hours. The seeds were sown on October 16th in 10a/50,000 Wagner pots filled with volcanic ash soil. As fertilizer, 2 g/pot of a chemical fertilizer having a ratio of N:P:K of 10:24:16 was applied uniformly to the entire layer. Cultivation was carried out outdoors for one month. The aboveground parts were harvested on November 18th, and fresh weight, dry weight, and plant height were measured. The maximum temperature during this period was 23.5℃, and the minimum temperature was -
It was 0.2℃. The test results are shown in Table 1. As is clear from the table, a remarkable growth promoting effect is seen in the 1000 ppm section.

[Table] Example 2 Seeds of cabbage (Early Akiho), lettuce (Great Lake 366), and Chinese cabbage (disease resistance 60 days) were soaked in choline chloride solutions of various concentrations for 24 hours. August 25
The seeds were soaked in the sun and then sown in the field for cultivation. On the other hand, as a control plot, seeds soaked for 24 hours in water without choline chloride and untreated seeds were sown at the same time. One month after sowing, a portion of the untreated area was treated by foliar spraying with various concentrations of choline chloride (200 ppm additive) at a rate of 100 per 10 acres. Chinese cabbage on October 25th
Lettuce was harvested on November 25th and cabbage was harvested on November 30th, and the total weight was measured. The measurement results are shown in Table 2.

[Table] Example 3 Seeds of Kaiware radish (commercial product from Fukushima Prefecture) were immersed in choline chloride aqueous solutions at various concentrations at 15°C for 16 hours, washed with water, and air-dried. These seeds were uniformly sown at 20 seeds each on wet absorbent cotton spread in 14 sheets of shear. This shearling was left to grow in a dark room at a maximum temperature of 13°C and a minimum temperature of 3°C. Their growth status and cold resistance status were observed and measured. The average measured values were as shown in Table 3.

[Table] Example 4 Radish seeds (commercially available from Fukushima Prefecture) were immersed in choline chloride aqueous solutions at various concentrations at 15°C for 24 hours, washed with water, and air-dried. These seeds and the water-soaked seeds were sown and cultivated in two plots of 1 m ² per plot. On the other hand, for comparison, untreated seeds were sown, and when the stems had grown to 4 to 5 cm in length, a choline chloride aqueous solution was sprayed on the leaves. These experiments were conducted from September to November.
The average values of the growth status were as shown in Table 4.
The daikon radish obtained in this experiment had no scallions and was well-prepared.

[Table] Standard plot: Water immersion plot Example 5 Grass (bent species) seeds were adjusted to various concentrations 15
After being immersed in a choline chloride aqueous solution at ℃ for 36 hours, it was washed with water and air-dried. This seed and the water-soaked seeds are
The seeds were sown and cultivated in two 1 m ² fields. 11 experiments
I visited from March to December, and the grass was growing well. The measurement results are shown in Table 5.

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[Table] Standard group: Water immersion group Example 6 Cherry tomato seeds were immersed in a 15°C choline chloride aqueous solution adjusted to various concentrations for 24 hours, then washed with water and dried. These seeds and the water-soaked seeds were sown in two test plots with five seeds per plot, and when they germinated to a height of 4 to 5 cm, a choline chloride aqueous solution was sprayed on the leaves of some of the water-soaked plots. . The exam was conducted from May to August. The results are shown in Table 6.

[Table] Standard group: Water immersion group Example 7 Cosmos seeds were immersed in a 15°C choline chloride aqueous solution adjusted to various concentrations for 24 hours, then washed with water and dried. This seed and the water-soaked seeds were mixed into 1 section of 10
The seeds were sown on two sides of the field. On the other hand, for comparison, untreated seeds were sown, and a choline chloride aqueous solution was sprayed on the surface of the seeds when flower buds had developed. The exam was held from August to October. The test results are shown in Table 7.

[Table] Standard area: Water treatment area Example 8 Corn (Delicious 90), wheat (Agriculture 61)
Seeds of No. 1) were immersed in choline chloride aqueous solutions adjusted to various concentrations for 48 hours at 10°C to 25°C, and then air-dried until the surface was dry. These seeds and the soaked seeds were sown in a plastic pot filled with field soil, cultivated in a glass greenhouse for 7 to 10 days, and then removed from the pot and washed with water to avoid cutting the fine roots. After that, the moisture was wiped off with tissue paper and the live weight was measured. The test results for corn are shown in Tables 8-10, and the test results for wheat are shown in Tables 11-12.

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Claims (1)

[Claims] 1. A seed treatment agent characterized by containing one or more compounds of choline or its salt.