Legume Genomics and Genetics 2014, Vol.6, No.1, 1-11
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Highest
gca
effect for this character exhibited by
OBG-31 (0.33) followed by Keonjhar Local (0.13).
The highest negative effect for this character was
recorded with B-3-8-8 (-0.23) followed by LBG-17
(-0.13) (Table 6). Among 8 parents 3 parents exhibited
positive
gca
effect (2 were significant) for this
character whereas rest 5 parents exhibited negative
gca
effect (2 were significant).OBG-31×Keonjhar
Local (6.72) had maximum number of seeds/pod
followed by PU-35×Keonjhar Local (6.33) and
LBG-17×OBG-31 (6.18), OBG-17 × Keonjhar Local
(6.18). The lowest number of seeds/pod was recorded
with cross TU-94-2×Keonjhar Local (5.23) followed
by B-3-8-8×LBG-17 (5.24) (Table 7). More the
number of pods more is the yield/plant. The
sca
effect
for this character ranged between -0.47 to 0.54.
OBG-31×Keonjhar Local (0.54), TU-94-2×OBG-31
(0.54) followed by B-3-8-8×PU-30 (0.49) whereas the
lowest value of
sca
was associated with PU-30×
Keonjhar Local (-0.47) Followed by PU-30×PU-35
(-0.46) (Table 8).
Pod length
The genotype OBG-17 (5.73) topped the list of pod
length followed by OBG-31 (5.33) and LBG-17 (5.21),
PU-30 (4.66) had lowest pod length followed by
PU-35 (4.91) (Table 5). OBG-31 (0.20) registered
significant highest
gca
effects for pod length followed
by OBG-17 (0.09). PU-30 (-0.19) showed maximum
significant negative effects for pod length followed by
TU-94-2 (-0.09) (Table 6). For higher yield the parent
with positive
gca
effect is desirable. LBG-17×
OBG-31 (5.77) topped the list followed by PU-35 ×
OBG-31 (5.66) and OBG-17 × PU-35 (5.54), B-3-8-8
× PU-30 (5.54) for this character in F
1
generation.
OBG-17×Keonjhar Local (4.66) had lowest pod
length among all 28 crosses (Table 7).Specific
combining ability effects revealed that the highest
sca
was observed with the hybrid B-3-8-8 × PU-30 (0.59)
followed LBG-17 × Keonjhar Local (0.33) andPU-35
× Keonjhar Local (0.32). The lowest
sca
effect was
observed with OBG-17 × Keonjhar Local (-0.50)
followed by B-3-8-8 × PU-35 (-0.31). The
sca
effect
for this character ranged from -0.23 to 0.24 (Table 8).
100 seed weight
Maximum 100 seed weight was recorded with PU-35
(4.92) followed by Keonjhar Local (4.91) and B-3-8-8
(4.90) whereas minimum 100 seed weight was
associated with OBG-31 (4.17) followed by PU-30
(4.27 (Table 5). The general combining ability effects
revealed that parent LBG-17 (0.08) had maximum
significant positive
gca
effect for this character
followed by Keonjhar Local (0.07), whereas
maximum negative
gca
effect was observed for
OBG-31 (-0.13) followed by PU-30 (-0.07) (Table 6).
In F
1
the cross combination of PU-30 ×Keonjhar Local
(4.96) had the maximum value for 100 seed weight
(4.78) which further followed by OBG-17 × LBG-17
(4.89) and LBG-17×OBG-31 (4.76). The lowest 100
seed weight was recorded with PU-35×Keonjhar
Local (4.27) followed by PU-30×LBG-17 (4.13)
(Table 7). Specific combining ability effect for 100
seed weight ranged from -0.50 to 0.43. PU-30×
Keonjhar Local had highest
sca
effect for 100 seed
weight (0.50) followed by LBG-17×OBG-31 (0.35)
and OBG-17×LBG-17 (0.33). The lowest
sca
effect
was observed in B-3-8-8×OBG-31 (-0.43) followed
PU-35×Keonjhar Local (-0.42) (Table 8).
Yield/plant
Yield/plant is the most desirable character any of the
breeding programme so in F
1
generation Keonjhar
Local (5.94) topped the list of high yielding parents
followed by LBG-17 (5.74) and OBG-31 (5.73) (Table
5). The lowest yielding parents for F
1
generation was
TU-94-2 (4.98) followed by B-3-8-8 (5.03).For this
character the
gca
effect ranged from -0.16 to 0.25.
OBG-31 (0.25) had maximum significant positive
gca
effect followed by Keonjhar Local (0.24). OBG-17
(-0.16) and TU-94-2 (-0.16) witnessed the maximum
negative
gca
effect for yield/plant followed by
B-3-8-8 (-0.14) (Table 6).The mean yield per plant
was recorded highest in PU-35×LBG-17 (6.19)
followed by OBG-31×Keonjhar Local (6.16), LBG-17
×OBG-31 (6.15) andB-3-8-8×PU-30 (6.14). The
lowest recorded cross for yield per plant was PU-30×
PU-35 (4.59) (Table 7). For yield the range of sca
varied from -0.64 to 1.02. Among the 28 F
1
hybrids
B-3-8-8 × PU-30 (1.02) had the highest
sca
effect
followed by PU-35×LBG-17 (0.71) and PU-30×
OBG-31 (0.48). The lowest sca effect was recorded
with the cross PU-30×PU-35 (-0.64) followed
OBG-17× LBG-17 (-0.63) (Table 8).
Discussion
The significance of GCA/SCA variance indicated that
both kinds of gene effects are important in controlling
the inheritance of all the studied traits (Table 3 and
Table 4). The GCA and SCA ratio was less than
