|
|
| |
| Articles
by
N.C.D. Barma |
Total Records (
1 ) for
N.C.D. Barma |
|
 |
| |
|
| |
D. Chandra
,
M.A. Islam
and
N.C.D. Barma
|
| |
Variability, heritability, genetic advance and association of nine characters
including yield in fifty F5 bulk lines of five wheat crosses viz.
Kanchan×DSN-34 (1), Kanchan×YC-17 (2), Kanchan×YC-16 (3),
Kanchan×BW-115 (4) and Kanchan×Ad-119 (5) were studied. All the
characters studied e.g. days to anthesis, grain filling duration, spikes plant-1, plant height, grains spike 1, 100-grain weight, biomass
plant-1, harvest index and yield plant-1 showed significant
variation in all crosses. However, the expression of the traits in all crosses
was not similar. Very high heritability and moderate genetic advance for days
to anthesis and biomass plant-1 in crosses 1, 2 and 3 suggested the
predominance of additive genetic variation for this two traits. Similar expression
was observed for grain filling duration in crosses 1 and 2. Very high heritability
and moderate to high genetic advance were observed for spike plant-1
in crosses 2, 4 and 5; plant height in crosses 1, 2 and 4; harvest index in
crosses 2 and 3; grains spike 1 and yield plant-1 in all
crosses. The heritability for 100-grain weight however, was moderate to high
with low to very low genetic advance. Days to anthesis showed negative association
with grain filling duration in crosses 1 and 3 and significant positive correlation
with plant height, biomass plant-1 and yield plant-1 in
cross 1 and with grains spike 1 in crosses 1 and 4. Grain filling
duration showed mostly significant or non-significant negative correlation with
all the traits with one exception where it showed significant positive correlation
with 100-grain weight in cross 4. Spikes plant-1 and plant height
showed significant positive correlation with biomass plant-1 and
yield plant-1 in most crosses with few exception. The trait 100-grain
weight did not show any significant correlation with any trait except in one
occasion. Biomass plant-1 and harvest index showed significant positive
correlation with yield plant-1 in most crosses, however, they did
not show any significant correlation between biomass and harvest index. |
|
|
|
|
| |
|
