Seed storage refers to the whole process of the seed from the start of the maturation of the mother plant to the sowing. During this period, the seeds will undergo irreversible deterioration. It is generally believed that after the physiological maturity of the seed, the deterioration has already begun. During the process of deterioration, a series of physiological and biochemical changes will occur within the seed. The speed of the change depends on the harvesting, processing, and storage conditions. The end result of deteriorating results in decreased seed viability, germination rate, growth potential of seedlings, and decline in plant performance. Large seed management stations have their own warehouses, and low temperature and low humidity cabinets are definitely inside the warehouse. Seed low-temperature storage cabinet instrument features: All microcomputers automatically set the control box temperature, humidity, time and other indicators to ensure that the low temperature and humidity inside the box; under the universal wheel is installed, mobile is very convenient.
Here are some ways to store seed storage:
The warehouse for storage of seeds should have basic conditions such as waterproof, rodent-proof, insect-proof and bacteria-proof, ventilation and fire prevention. The seed bank must not be exposed to water in the area of ​​rain or snow and other sources of water and seeds, otherwise the seed will accelerate the respiration, fever and growth of mold due to high moisture, and even encourage the seeds to germinate, thus reducing the seed's quality. Therefore, it is necessary to promptly eliminate small holes and cracks on the roof and walls of warehouses, and install a floor (asphalt or linoleum) with a waterproof layer. The inner wall of the warehouse should also be able to brush asphalt moisture below the seed pile height. Fungi, etc., are most suitable for growing under humid and warm conditions. The difference in temperature inside the warehouse will cause water vapor to move from high temperature to low temperature. It is usually moved from the inside of the seed heap to the surface, so as to provide suitable conditions for the growth of the fungus. Therefore, the warehouse should be kept at a low temperature and dry conditions. At this time, the ventilation equipment is particularly important to prevent the increase of moisture.
The types of seed storage can be divided into general storage, cold storage, and germplasm resources for the purpose of preserving germplasm resources. Commercial seeds for turfgrass can be stored in normal storage. Ordinary Kuduo uses ventilation fans to regulate temperature and humidity, and should choose sites that are high in the terrain, relatively dry in climate, cool in winter and cool in summer, and have no high-rise buildings around them. When building, they face south and face south, and they must have good sealing and ventilation performance. Due to the short storage time of the common library (usually 1 to 2 years, the high temperature and high humidity areas in the south are shorter in the summer), the seeds need to be transported frequently, and the convenience of transportation should also be taken into consideration when selecting the site. It is simple and economical to use ordinary storage methods for seeds, but the storage time is too long and the seed viability will be significantly reduced.
The life activities of the seeds also affect the changes in the environment within the warehouse. At the same time, the external environment will also affect the changes in temperature and humidity of the seed piles. In order to store seeds safely, various factors that affect the safe storage of seeds should be regularly checked during storage for timely treatment. First of all, the temperature of the seed heap should be checked regularly. The change of the seed temperature can reflect the safety status of the stored seeds to some extent. During the inspection, the bulk seeds are generally divided into upper, middle and lower layers within the area of ​​100 square meters of seed piles, with 5 check points per floor for a total of 15 sites. The packaged seeds adopt a wave-type set-point method, preferably measured once a day, and the measurement time is preferably from 9 to 10 o'clock in the morning.
Seed moisture is also an important inspection item. According to the variation law of seed moisture, bulk seeds are 25 square centimeters as a community, which is also divided into three levels and 5 points, a total of 15 checkpoints. The sensory method can be used first, that is, through color, wetness or not, with or without mildew, crispness, etc., to determine whether an instrument inspection is required. Generally, one or four quarters of the year will be checked once a quarter, every two or three quarters. Check once a month. During the storage of seeds, the germination rate changes due to different environmental conditions and storage time, so it is necessary to regularly check the germination rate. According to the change of the germination rate, take timely measures to avoid unnecessary losses. Under normal circumstances, the germination rate should be checked once every 4 to 6 months, and should be checked once after the high or low temperature and after the drug is fumigated. In addition, attention should also be paid to the occurrence of rats and insect pests in warehouses, and fumigation and other measures should be taken in time to eliminate the harm of rats and insects to the seeds.
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