ESTIMATE OF POLLEN VIABILITY IN SUGARCANE THROUGH IN-VITRO TECHNIQUES
IWO, G.A., KWON-NDUNG, E.H., MISARI, S.M.
Abstract
Pollen of 38 sugarcane accessions were assessed for
viability through in-vitro germination test. The percentage of germinated pollen
grains were used for sex characterization of the parents. About eighteen accessions
were classified as female of which six of the clones: BD-06, C0349, C0473, C0496,
Oy-21 and Oy-22 were completely sterile, while eleven other accessions were
assessed to be hermaphrodite (bisexuals). Ten clones B4725B, B70607, C0285,
C0301, C0331, C0740, CO 1001, CO 1158, F141 a BD-07 were found to be good pollen
(male) parents with pollen germination ranging from 60 to 95 percent. Also observed
among the clones was variation in pollen sizes which characterized genotypic
differences among the sugarcane accessions.
Key words:
Accessions, clones, germination, in-vitro, parents,
pollen, sugarcane