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POLLEN GERMINATION CAPACITY OF TWO CULTIVATED SPECIES (JASMINUM SAMBUC (L.) AIT. AND NYCANTHES
ARBOR-TRISTIS L.) OF FAMILY OLEACEAE
ANJUM PERVEEN1 AND GHULAM RASOOL SARWAR2
Abstract:
Pollen germination
and viability of two species viz., Jasminum sambuc (L.) Ait., and
Nycanthes arbor-tristis L. of the family Oleaceae were examined .
Viability was determined on the basis of germination ability of pollen
on sucrose medium with boric acid solution up to 48 weeks. Stored pollen
were germinated under different conditions (+4°C), (-20°C,
-30°C), (-60°C), vacuum chamber and organic solvents. Pollen
stored at low temperature -60°C showed better germination as compared to
pollen stored at +4°C and fresh. Among two species Jasminum sambac
(L.) Ait. showed much better germination percentage at
-60°C ( 40.60% ) whereas, Nycanthes arbor-tristis L., showed
37.0% germination after 48 weeks of storage. Pollen stored over silica
jel under vacuum of both the species showed good germination as compared
to organic solvents.
1Department
of Botany, University of Karachi, Karachi 75270, Pakistan,
2Centre
for Plant Conservation, University of Karachi, Karachi 75270, Pakistan
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