CN104782264A - Adjusting method capable of improving germination of small-grain vegetable seed - Google Patents

Abstract

The invention discloses a regulation method for improving the germination of small vegetable seeds. The steps are as follows: 1) selecting and weighing the seeds to be treated; 2) preparing humic acid powder with a particle size of less than 40 mesh; 3) mixing seeds, humic acid powder and water in a weight ratio of 1:1-2:1 The ratio of 2 is fully mixed in an aluminum pot, placed at 10°C-20°C for 1-7 days, then the seeds and humic acid are separated, and dried at 25°C until the water content is less than 7%. The invention adopts the natural agricultural grade humic acid powder as the regulating medium, and the germination speed of the seeds treated by the invention is accelerated, and the germination resistance ability is enhanced. It is suitable for the treatment of small vegetable seeds such as green cabbage and amaranth.

Description

A method for regulating the germination of small vegetable seeds

technical field

The invention relates to seed treatment and seed physiological application technology, in particular to an adjustment method for improving the germination characteristics of small vegetable seeds.

Background technique

In the early spring sowing and seedling production of vegetable seeds, due to the low soil temperature, not only the germination is slow, but also quite irregular, and sometimes it takes too long. In 1973, Heydecker in the United Kingdom used osmotic agents to treat the seeds, allowing the seeds to slowly absorb water and prepare for germination physiologically and biochemically, but they could not get enough water to allow the radicle to germinate, and finally dried the seeds. The temperature can germinate neatly in a short time. This seed germination regulation method (Seed Priming) is also known as initiation in China. Beginning in the 1980s, domestic scholars have carried out research work on priming technology. At present, there are many patent applications related to seed priming technology. CN101411329A discloses a tobacco seed priming agent; CN1190123C discloses a solid priming agent for improving seed vigor. Method; CN100420381C discloses a seed initiator.

The seeds of small vegetables such as green cabbage, amaranth, and lettuce have small particle sizes, generally below 1.5 mm. The existing priming methods are not suitable for this kind of seed germination regulation treatment. For example, the cost of PEG priming is high, and mass production is difficult, and the PEG solution is viscous. It is inconvenient to wash and dry. Initiation by sand solid matrix Due to the high density and high hardness of sand, the seed embryo is easy to be damaged during the mixing process, so it is not suitable for the regulation of germination of small vegetable seeds. Vermiculite triggers because vermiculite is close to the size of seeds, and it is not easy to separate after treatment, which reduces the cleanliness of seed batches, is not conducive to the sale of commercial seeds, and is not suitable for the regulation of germination of small vegetable seeds.

Humic acid is a type of organic substance accumulated by the remains of plants through microbial decomposition and transformation, as well as a series of chemical processes. Humic acid has five major functions in agriculture: improving soil, synergizing fertilizer, stimulating growth, enhancing stress resistance, and improving quality. Weathered lignite is rich in humic acid, an interrupted product of a 70 million year humic acid process. Utilizing humic acid as a germination regulating substrate is cheap, can solve the above problems, and is suitable for regulating the germination of small vegetable seeds.

Contents of the invention

The purpose of the present invention is to provide a method for regulating the germination of small vegetable seeds, which can increase the germination speed of small vegetable seeds such as green vegetables and lettuce, so that seedlings can emerge earlier, and the rate of seedling formation under unsuitable environmental conditions can be improved.

In order to achieve the above object, the invention provides a method for regulating the germination of small vegetable seeds, which is characterized in that it comprises the steps of:

1) Select and weigh the seeds to be treated.

2) Prepare humic acid powder with particle size less than 40 mesh.

3) Fully mix the seeds, humic acid powder and water in an aluminum pot at a weight ratio of 1:1-2:1-2, place in a constant temperature incubator for 1-7 days, and control the temperature at 10°C-20°C After the treatment, use a sieve to separate the seeds from humic acid, and then put the seeds in a drying oven at 25°C to dry back to a moisture content below 7%.

Compared with the prior art, the method provided by the invention has the following advantages and positive effects:

1) Improve the germination characteristics of seeds. After the germination adjustment, the germination speed of the seeds is accelerated, germinating 1 day earlier than the untreated seeds, the ability of the seeds to resist adversity is improved, and the germination performance under low or high temperature conditions is higher than that of the untreated seeds.

2) It is suitable for regulating the germination of small vegetable seeds. Due to the fine particle size of humic acid powder, it is easy to separate from the seeds after treatment. At the same time, humic acid has the effect of stimulating growth and can promote the growth of seedling roots.

3) The invention has the characteristics of simple method, low cost and easy operation.

The humic acid powder is a weathered coal product, a pure natural humic acid, such as the agricultural grade humic acid produced by Xinjiang Shuanglong Humic Acid Co., Ltd., the high-quality humic acid raw powder (product number 6161171816) produced by Jiangxi Polygala Humic Acid Co., Ltd. ).

The seed germination regulating method of the present invention is used to process small vegetable seeds such as green vegetables, lettuce, and rice amaranth. The mixture culture temperature and time are different according to the crops. The culture temperature is preferably between 10°C-15°C, and the culture time is 1-5 days. The mixture was stirred once a day during the treatment. After the treatment, the seeds are dried in a drying oven at 25°C for more than 48 hours, the water content is controlled below 7%, and then dried and stored at room temperature.

By treating the seeds of green vegetables, lettuce, amaranth and the like by the method of the invention, the vigor of the seeds can be improved, the germination is fast and uniform, and the seedlings emerge quickly and neatly after sowing in the field, and the seedling rate is high.

Detailed ways

Example 1

Weigh 1000 grams of selected vegetable seeds (resistance to heat 605) and 1500 grams of humic acid powder, pour them into an aluminum pot and mix them evenly, then add 1000 milliliters of water and mix them evenly. Put the aluminum pot in a constant temperature incubator, set the temperature at 10°C, take out the seeds after 3 days, separate the seeds and humic acid powder with a 18-mesh round hole sieve, and dry the seeds in a 25°C drying oven to the moisture content Sealed storage after less than 7%.

Example 2

Weigh 500 grams of lettuce seeds and 1000 grams of humic acid powder respectively and pour them into an aluminum pot, then add 800 ml of water, mix well, then put the aluminum pot into a constant temperature incubator, set the temperature at 15°C, and after 2 days Take out the seeds, sieve the humic acid powder with an 18-mesh round hole sieve, place the seeds in a drying oven at 25°C and dry until the moisture content is less than 7%, and then seal and store.

Example 3

Mix 2,000 grams of amaranth seeds, 1,500 grams of humic acid powder, and 3,000 milliliters of water in an aluminum pot, then put the aluminum pot into a constant temperature incubator, set the temperature at 15°C, take out the seeds after 4 days, and use an 18-mesh round The humic acid powder was sieved with a hole sieve, and the seeds were dried in a drying oven at 25°C until the moisture content was less than 7%, and then sealed for storage.

The seeds in the above example 1 were taken out for indoor germination experiment, and the germination determination method was carried out according to the national standard, the temperature was 15°C, 25°C, 35°C, and there was no light. 100 seeds per treatment with four replicates. The germination is counted according to the radicle elongation of 1 cm, the germination potential is counted in 2 days, and the germination rate is counted in 7 days. The results are as follows:

Determination of Indoor Germination Effect of Kangre 605 Cabbage Seeds

Claims (2)

1. a method for regulating the germination of small vegetable seeds is improved, characterized in that the steps are as follows: 1) Select and weigh the seeds to be treated. 2) Prepare humic acid powder with particle size less than 40 mesh. 3) Fully mix the seeds, humic acid powder and water in an aluminum pot at a weight ratio of 1:1-2:1-2, place in a constant temperature incubator for 1-7 days, and control the temperature at 10°C-20°C After the treatment, use a sieve to separate the seeds from humic acid, and then put the seeds in a drying oven at 25°C to dry back to a moisture content below 7%. 2. a kind of adjustment method that improves small vegetable seed germination as claimed in claim 1, is characterized in that, the humic acid powder in the described step (2) is agricultural grade weathered coal product.