Abstract

Pollen storage and viability are very important for pollination, breeding, biodiversity, biotechnology, conservation, and other biological and non-biological studies of the date palm. Optimizing procedures and duration of storage are important for effective and long-term date palm pollen storage and viability. Here we describe pollen storage methods, such as room temperature (25-30°C), refrigeration (4°C), storage at 4°C in desiccators, deep freezer (-20°C), and cryopreservation (-196°C). Based on pollen viability by staining and in vitro germination methods, cryopreservation is the best method for long-term storage without any significant effect on pollen viability (75-84%); however, the percentage of pollen viability depends on the storage period.

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