In the tone fruit trees including almond,
apricot, plum, prune, sour cherry and sweet
cherry, pollen performance includes pollen
quantity produced in a flower and pollen quality
consists of viability, longevity, morphological
homogeneity, pollen germination and pollen tube
growth rate which are very important component
of fertilization and fruit setting. However,
study of pollen traits is one of the most
important approaches for growers and breeders.
In this research, main pollen traits including
germination and tube growth were investigated in
some selected cultivars of
Prunus species including P. dulcis, P.
armeniaca, P. domestica, P. ceracus, P. salicina
and P. avium. Pollen traits of 5
cultivars from each species were studied using
the in vitro medium containing 15% sucrose, 1% agar 5 ppm H3BO3
(boric acid). Pollens were planted in the in
vitro medium inside the Petri-dishes and
incubated at the constant temperature of 24°C
for 24 h and then, pollen germination and growth
were protected by adding chloroform. Data
analysis showed that in all of the studied
traits significant differences were observed
among six species and
cultivars of each species.
Key words:
Almond, apricot, plum, prune, sour cherry, sweet
cherry,
Rosaceae, pollen viability, in vitro.
