International Journal of Horticulture, 2016, Vol.6, No.24, 1-7
3
pod length and for plant height, four hybrids for number of branches per plant, each eight hybrids for number of
pods per plant and number of seeds per pod, two hybrids for 100-seed weight, five hybrids for harvest index and
each seven hybrids for total protein content and biological yield manifested significant and desirable
sca
effects.
Results revealed that the hybrids with high
sca
effects for seed yield per plant were also associated with high and
desirable
sca
effects for most of the important yield attributing traits. The best four hybrids with high significant
positive
sca
effects for seed yield per plant were CMS GT 33 X GTR 18 (29.31), CMS GT 302 A X GTR 8
(25.27), CMS GT 601 A X GTR 52 (21.35) and CMS GT 288 A X GTR 95 (20.89). These hybrids had also high
significant positive sca effects for its contributing traits
viz.
number of pods per plant, number of branches per
plant, biological yield and leaf area were contributed toward seed yield. The crosses showing significant
sca
effects can be directly used for hybrid breeding programme (Table 3). These crosses may be exploited
commercially after testing in wide range of environments.
3 Conclusions
It was concluded that none of the parent was good general combiners for all the characters. Among parents, CMS
GT 603 A (28.43) and GTR 95 (17.24) were good general combiner for seed yield and its contributing traits
viz.
pod length, number of branches per plant, number of pods per plant, number of seeds per pod, pod length,
biological yield and leaf area, CMS GT 33 A (0.48) and CMS GT 301 A (0.19) for protein content, CMS GT 33 A
(-17.93), CMS GT 288 A (-9.03), GTR 52 (-1.40) and GTR 8 (-0.62) recorded for earliness. These parents can be
improved further through intensive crossing programme and subsequent selection of transgressive segregants in
desired direction. Hybrids CMS GT 33 A X GTR 18 (29.31), CMS GT 302 A X GTR 8 (25.27), CMS GT 601 AX
GTR 52 (21.35) and CMS GT 288 A X GTR 95 (20.89) were the best for seed yield per plant. These crosses had
also high
sca
values for its contributing traits
viz.
number of branches per plant, number of pods per plant, pod
length, harvest index, biological yield and leaf area. These crosses involved poor x average, poor x poor and
average x poor combining parents and better performance reflected involvement of interaction of dominant and
epistasis type gene action for this trait. So, these crosses can be exploited through hybrid breeding programme.
