  This study was conducted at College of Agricultural Engineering Sciences,
University of Sulaimani, Kurdistan Region-Iraq so as to investigate some nut
traits in 10 bitter almond genotypes, capacity of them to release from dormancy
and finally germination ability. Nut traits were calculated, and stratified in
a sand medium at 6 C in a refrigerator for 55 days, then they were sown in fine
sand on August 22, 2021 for 29 days to calculate germination percentage. There
were great discrepancies among genotypes in nut traits. Nut length was between
(23.66-32.73 mm), nut width (18.77-21.84 mm), nut size (3.16-4.26 cm3), nut
weight (2.67-4.13 g), kernel weight (0.6-0.99 g), shell weight (1.94-3.27 g)
and shell thickness (2.31-3.37 mm). The results of release from dormancy and
calculation of germination percentage trials showed that the highest nut
numbers from G6 (100%), G4 (86.11%) and G2 (65.22%) were released from dormancy
and the same genotypes gave the best germination percentage, particularly G6
and G2 both gave (73.33%) germination. Depending on the results of release
percentage from dormancy and germination percentage, G6 and G2 along with G4
were the best genotypes.
