[Seed preservation temperature] How long can the seed cold storage storage be reached?

[seed preservation temperature] How long can the seed cold storage storage be reached?

Validity of vegetable seed preservation

Vegetable seed germination rate is very related to the preservation period, different vegetable species, and their preservation years are different.

tomato:Generally, it can be stored for 3-4 years, and the longest does not exceed 4 years. Otherwise, the method of reducing the bud rate will be reduced. The method of identifying the old and new seeds is that there are furry on the new seeds and tomato flavors.

Cucumber:At most 2-3 years, which exceeds this period, the period of the deadline is generally reduced by 20-30%. Even if it can emerge, some often have no true leaves after seedlings, and it is not easy to survive.

eggplant:seeds that are generally within 6 years can be used. The new seeds are shiny, and the old seeds reduce the luster according to the storage period.

chili:It must not exceed 3 years, otherwise the bud rate will be reduced, the bud rate of 2 years will be reduced by about 10%, and the storage of three years will be reduced by about 30%. The new seeds are golden yellow, and the Chen seeds are apricot yellow.

Scallion seed:In the summer, the green onions must be used to use the new seeds of the year. If the seeds of the aged, the green onions will smoke moss.The spring onion can be produced in the first year.

coriander:It must be stored for one year, but the storage time should not exceed 3 years.Otherwise, the fragrance will become smaller.

celery:It can be stored for 3 years. The seeds that year cannot be used in that year, and it must be used for one year.

Chinese chives:The new seeds were good at that time, and the germination rate of two years was greatly reduced.

Chinese cabbage:It can be stored for two years. The seeds harvested in that year can be sowed in that year, but if more than two years, the seedling rate is reduced by 20-30%, and the disease resistance is low.

seed preservation temperature

During the storage period, the percentage of the relative humidity of the air in the storage room plus the temperature((Hua'sCureThe number should not be greater than100Otherwise, it will affect the storage effect.Onions, broccoli, carrots, lettuce, tomato, eggplant and other vegetables are stored in20Percent(66T)The temperature and air relative humidity of the air is50Under the conditions, it can be stored safely.The seeds of cauliflower are stored in17(62..6F)Relative humidity with air is35Under the condition,4During the year, the seeds of seeds remain unchanged.When the temperature is5, the relative humidity of the air is45%one50At %, many seeds can be stored10Year or more time.If the temperature and the relative humidity of the air can be reduced, the effect of seed preservation can be improved.

The maintenance of the seeds of seeds is also closely related to the content of the seeds itself, and reducing the moisture content can extend the seed life.According to research, the moisture content of the seeds decreasesL%, Temperature decrease5..6C can double the life of the seeds.

Of course, the seeds of different varieties of the same vegetable have different reactions of storage conditions.

According to the above principles, the seeds of vegetables are effectively stored effectively((Or other crop seedsCureThere are also many methods. At present, the low -temperature drying storage method or sealing low -temperature storage method is used internationally internationally. The former is mainly to build a low -temperature drying seed library to store seeds.storage at low temperature.According to the test, the seeds of vegetables with low water content are-4storage at low temperature at low temperature20In the year, he still had a high life.Moso seeds with low water content are in a closed container and stored in2Under , pass through10After the year, there is almost no reduction of its living power.

In addition, Chinese cabbage and cabbage are not affordable"Original species" seeds, stored with silicone dryer, put in4-5storage can be stored under the condition ofLOOver the year.

How long can seed cold storage store

1The short -term seed cold storage is used to preserve the temperature control of the product -based seed library15~20seed cold storage, relative humidity50%~60%EssenceSeed containers from paper Bags, plastic Bags, cloth Bags, glass bottles, etc.seed water content12%the following.seed life life2~5Year.

2Save the seed cold storage in the medium term to preserve liquidity seeds, and the temperature of the seed library is controlled0~10The range of , the relative humidity is not greater than60%.The seed container is the same as the long -term library.seed water content6%~9%EssenceSeed life life10~30Year.

3, Long -term seed cold storage, for long -term preservation of seeds, the temperature in the library is controlled-10~-20The range of , the relative humidity is not greater than60%EssenceThe reference standard for long -term preservation of normal seeds is-18or lower temperature conditions, seed water content51%(Based on wet weight).Instead of being blocked in an opaque container, such as sealed metal boxes, aluminum foil Bags, plastic composite film Bags, glass bottles, etc.seed life life30~50Year, or longer.