Evaluation of heterosis and heritability in Cuban tomato (Solanum lycopersicum) hybrids
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Abstract
evaluated in tomato F1 hybrids, obtained through two statistical
genetic designs (Top cross and Biparental) and their
progenitors, seeded within the optimal crop season (October
15-December 20, 2006) at the National Institute of Agricultural
Sciences. The experiment was performed in asbestos cement
gutters with a microjet irrigation system under organoponic
conditions. The percentage of heterosis and narrow-sense
heritability was estimated. The study of heterosis enabled to
identify those hybrids showing a better behavior than their
cultivars of origin, regarding many important characters for
the producer, reaching the highest yield values at the Top
cross, and yield as well as fruit number at the Biparental one.
Every character showed high values of heritability, except yield
per plant with mean values.
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