The aim of this study was to evaluate the storage potential of the pollen grains of Brazil Green
Dwarf (BGD), Brazilian Tall (BRA) and Cameroon Red Dwarf (CRD) coconut accessions under different
storage conditions. Representative plants of BGD, BRA and CRD accessions were selected from the Coconut
Active Germplasm Bank of Embrapa Coastal Tablelands. The pollen grains were collected, placed in cryotubes
and maintained under the following storage conditions: T1, refrigerator (-4°C); T2, freezer (-20°C); T3, ultrafreezer
(- 80°C) and T4, liquid nitrogen (-196°C). The pollen grain viability was determined by staining with 1%
acetic carmine and in vitro germination in a Lora culture medium at 30 and 60 days after the storage. Storage
under refrigerator (-4°C), freezer (-80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain
viability of the Brazilian Tall coconut accession. Storage under freezer (-20°C) and liquid nitrogen (-196°C)
conditions promoted a better pollen grain viability of the Cameroon Red Dwarf coconut accession. Storage
under freezer (-20°C and -80°C) and liquid nitrogen (-196°C) conditions promoted a better pollen grain viability
of the Brazil Green Dwarf coconut accession. The pollen grain viability of the Brazilian Tall coconut accession is
stable after 30 and 60 days of storage.