Genetic Behavior for Seed Yield and it’s Components in Faba Bean (Vicia faba L.) Populations
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Genetic Behavior for Seed Yield and it’s Components in Faba Bean (Vicia faba L. ) Populations.
Abstract
Five populations of faba bean were advanced from F2 to F3 generations by
recurrent selection at Terbol Research Station, International Centre for
Agricultural Research in The Dry Areas (ICARDA), Lebanon. During the
first growing season (summer 2013). The produced genotypes of selection
were evaluated during the second growing season (winter 2013/2014) in
order to estimate the narrow-sense heritability and genetic advance for
number of pods per plant, number of seeds per plant, 100-seed weight and
seed yield traits. The results showed that S2012-085 population was
superior in heritability for seed yield (0.500), 100-seed weight (0.500) and
pods per plant (0.500), while the population S2012-133 was recorded the
highest heritability value for seeds per plant (0.702). The results showed
that genetic advance for seed yield trait ranged from 11.4 to 19.39 g.plant-1
,
and the highest value of genetic advance of seed yield was recorded on the
population S2012-018 (19.395 g). Moderate values of narrow sense
heritability accompanied with high values of genetic advance were
recorded for all traits under research in most populations, indicating to the
importance of additive gene action. Consequently, recurrent selection is
very important to apply in order to improve the traits across segregated
generations of faba bean.
