Floral traits influence rice diversity, plasticity as well as its evolution and gene flow. Floral trait variation in Nepalese rice was
observed during 2006 at RARS-Lumle. They were evaluated at green house condition. 6 improved rice varieties and 31 rice
landraces were collected from terai and hill regions of Nepal. Similarly, 12 rice accessions (including male sterile) were collected
from IRRI and RARS-Lumle. 01yza rufipogon. 0. officinalis and 0. nivara (two accessions) were also observed during this study.
Higher variability was observed for glume opening angle, glume opening duration, stigma exertion, flag leaf angle, flag leaf
character, flag leaf length-breadth ratio, plant height, panicle length, panicle type, panicle exertion, spikelet fertility, pollen fertility,
stigma surface, style length, filament length, anther size and pollen diameter. 0. rufipogon was distinct with other rice while 0 .
nivara was found similar in many characters with landraces. The upland rice landraces Linde and Thulo Begani falls in same group
with cold tolerant rice Macchapuchre-3 and Chandannath-3 respectively. Glume opening angle showed good correlation with panicle
length {r-0.496, p<O.OOO), stigma exertion {r-0.472, p<O.OO I), stigma surface (r-0.386, p<0.007), filament length {r-0.3 18,
p<0.028) and anther size {r-0.508, p<O.OOO).

Floral traits influence rice diversity, plasticity as well as its evolution and gene flow. Floral trait variation in Nepalese rice was
observed during 2006 at RARS-Lumle. They were evaluated at green house condition. 6 improved rice varieties and 31 rice
landraces were collected from terai and hill regions of Nepal. Similarly, 12 rice accessions (including male sterile) were collected
from IRRI and RARS-Lumle. 01yza rufipogon. 0. officinalis and 0. nivara (two accessions) were also observed during this study.
Higher variability was observed for glume opening angle, glume opening duration, stigma exertion, flag leaf angle, flag leaf
character, flag leaf length-breadth ratio, plant height, panicle length, panicle type, panicle exertion, spikelet fertility, pollen fertility,
stigma surface, style length, filament length, anther size and pollen diameter. 0. rufipogon was distinct with other rice while 0 .
nivara was found similar in many characters with landraces. The upland rice landraces Linde and Thulo Begani falls in same group
with cold tolerant rice Macchapuchre-3 and Chandannath-3 respectively. Glume opening angle showed good correlation with panicle
length {r-0.496, p<O.OOO), stigma exertion {r-0.472, p<O.OO I), stigma surface (r-0.386, p<0.007), filament length {r-0.3 18,
p<0.028) and anther size {r-0.508, p<O.OOO).