A half diallel making design was used to determine combining ability and heterosis of six
chickpea lines and their hybrid combinations with R.C.B.D. in three replication for seed
yield per plant, number of pods per branch, pods number per plant, fi
rst pod height and
100- seed weight, during 2015 and 2016 seasons, at the research Center of Al-Gab
(G.C.S.A.R). Genotypes, general (GCA) and specific (SCA) combining ability mean
squares were significant for all studied traits. The ratio σ2
GCA / σ2
SCA were detected for all
traits and showed that non- additive gene action was more important than additive gene
action in controlling all studied traits. GCA effects showed that the lines P2(IL.10158) was
good general combiner for number of pods per branch and plant, also, 100- seed weight
where, P3 (IL.5883) and P4(IL.4) were good general combiner for first pod height and seed
yield per plant, respectively. SCA effects showed that(P1×P2) hybrid was the best F1
crosses combination for seed yield per plant. On the other side (P1×P2), (P1×P4) and
(P2×P4) were showed positive and significant heterosis values for seed yield per plant and
100- seed weight also first pod height and number of pod per branch and plant
respectively.
A half diallel making design was used to determine combining ability and heterosis of six
chickpea lines and their hybrid combinations with R.C.B.D. in three replication for seed
yield per plant, number of pods per branch, pods number per plant, fi
rst pod height and
100- seed weight, during 2015 and 2016 seasons, at the research Center of Al-Gab
(G.C.S.A.R). Genotypes, general (GCA) and specific (SCA) combining ability mean
squares were significant for all studied traits. The ratio σ2
GCA / σ2
SCA were detected for all
traits and showed that non- additive gene action was more important than additive gene
action in controlling all studied traits. GCA effects showed that the lines الإسباني was good
general combiner for traits:seed yield per plant, pods per plant, 100- seed weight, days to
maturity, protein per cent. SCA effects showed that(Algerian×Spanish) hybrid was the
good specific combiner for seed yield per plant, pods per plant, 100- seed weight, harvest
index. On the other side(Algerian×Spanish) was showed significant desirable heterosis
values for seed yield per plant and 100- seed weight, days to maturity, harvest index.