Seed cold induction device and method based on ultrasonic wave technology

Abstract

The invention discloses a seed cold induction device and method based on an ultrasonic wave technology. The seed cold induction device includes a refrigeration module, a control module and a power supply module; the refrigeration module includes a two-stage refrigeration system and an inner box, and the two-stage refrigeration system includes a compression refrigerating machine and temperature difference refrigerating sheets; the inner box includes a heat insulation cover, a temperature-controllable box body, ultrasonic wave energy converters, coils, a stirrer and concentric drain caps; the control module includes a single-ship computer, a drive circuit and an ultrasonic wave generator; the inner wall face of the side, close to low-temperature anti-freezing liquid, of the temperature-controllable box body is a surface with gradient surface energy, and the inner wall face of the side, close to the temperature difference refrigerating sheets, of the temperature-controllable box body is of a multi-scale groove structure. According to the seed cold induction device and method based on the ultrasonic wave technology, ultrasonic waves are adopted to stimulate seeds, the germination rateof the seeds is increased, the germination potential of the seeds is improved, and the growth of seedlings is promoted; by adopting the cavitation and mass transfer effects of the ultrasonic waves, the configuration of enzyme molecules of the seeds is changed, the activity of enzymes is improved, the stress-resistant, antiviral and oxidation-resistant capabilities of the seeds are improved, and the biological yield is increased.

Description

technical field [0001] The invention relates to a cryopreservation device and method, in particular to a seed cold induction device and method. Background technique [0002] Germplasm resources are very critical resources in the world's species conservation and agricultural production and life, and seed preservation is the top priority. Nowadays, seeds are often kept for production and production year after year, but the vigor and germination rate of seeds that have been stored for a long time will be greatly reduced, or even not germinate. The low-temperature refrigeration technology can make the storage time longer and keep the seeds alive. Although the low-temperature air produced by conventional compression refrigeration can make the seeds dormant, due to the small thermal conductivity of the air, the low-temperature pretreatment process of the seeds takes a very long time, which takes 3 to 5 hours. Seeds are generated between cells, and then ice crystals are generated...

AI Technical Summary

Problems solved by technology

Although the low-temperature air produced by conventional compression refrigeration can make the seeds dormant, due to the small thermal conductivity of the air, the low-temperature pretreatment process of the seeds takes a very long time, which takes 3 to 5 hours. Seed cells are generated, and then ice crystals are generated inside the cells, which leads to an imbalance of pressure inside and outside the cells, thereby destroying the protoplasm and cell membrane, which may lead to cell lysis and death

In addition, compression refrigeration equipment is bulky and expensive, which is not conducive to popularization and use among ordinary farmers.

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