Both wet are and dry storage are to ensure preservation of values.
Wet storage-Advantage.
1.it enable complete preservation of plant species. This ensures all parts of the plant specimens are intact for scientific researches.
2.If the plants material is stored may be stored in alcohol, the DNA can be obtained.
Disadvantages.
Because this involved the use of liquid for storage, this is expensive and bulky to manage.
It consume more time and energy because the liquid levels must be maintained by topping it intermittently.
Dry Storage.
Advantages.
It is more convenient to store because fewer containers will be needed( less expensive). This is also less bulky.
Since the plants are not in liquid environment. It is easier to pick them up for examinations.
Disadvantages.
There is loss of values for scientific researches because cells are dead.
in case of accidents( fire outbreaks, flood at the storage centers) there is tendency for more damages to the dry storage compare to wet.
Plant anatomy can not be preserved because of loss of moisture, and this may affect scientific value.
Ethanol is used for wet storage, while plants may be oven dried or dry in incubator.
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