title: Estimation of components of genetic variance and heritability for flowering time and yield in gerbera using Derivative-Free Restricted Maximum Likelihood (DFRML).
abstract: Additive genetic components of variance and narrow-sense heritabilities were estimated for flowering time (FT) and cut-flower yield (Y) for six generations of the Davis Population of gerbera using Derivative-Free Restricted Maximum Likelihood (DFRML). Additive genetic variance accounted for 54% of the total variability for FT and 30% of the total variability for Y. The heritability of FT (0.54) agreed with previous ANOVA-based estimates. However, the heritability of Y (0.30) was substantially lower than estimates using ANOVA. The advantages of DFRML and its applications in the estimation of components of genetic variance and heritabilities of plant populations are discussed.
authors.affiliation: Department of Environmental Horticulture, University of California, 95616, Davis, CA, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Yu
authors.forename: J
authors.initials: J
authors.lastname: Harding
authors.forename: T
authors.initials: T
authors.lastname: Byrne
authors.forename: T
authors.initials: T
authors.lastname: Famula