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detailed investigation on the molecular mechanism of heat tolerance in tomato. Heritability analysis is important to determine the appropriate method of genetic improvement. Heat stress tolerance was found to have low heritability ( Hanson et al., 2002

crucial to the plant breeder in determining the potential application of the material such as for turf ( Wright et al., 1983 ). Genetic variation and heritability estimates help predict the response to selection for desired traits ( Dudley and Moll, 1969

associated with this trait are now being used in applied chestnut breeding programs ( Nishio et al., 2013 ). On the other hand, the inheritance of NHD and NW has been insufficiently studied. Kotobuki et al. (1984) reported the narrow-sense heritability of

patch resistance must be determined. Plant breeders use heritability estimates to determine the influence of the environmental and genetic factors affecting the trait of interest and what selection procedure should be implemented to make improvements

, 2008 ). Many of these wild and weedy relatives have undesirable characteristics such as high or low flesh pH or low sugar content. Estimates of heritability and correlations among traits can help in the selection of breeding strategies and selection of

was to estimate narrow-sense heritability and phenotypic relationships among fruit metabolites in two red-fleshed watermelon populations. Methods Cultivation and field design Summer 2015: Parents. In 2015, two North Carolina watermelon populations, NC

Fraser fir established in 1983 found significant differences among sources and among families within seed sources for all traits measured ( Arnold and Jett, 1995 ; Arnold et al., 1994b ; Jett et al., 1993 ). Heritabilities for most traits important in

conditions. Effective breeding requires both genetic variation and heritability for attributes of interest. Therefore, the objectives of this study were to assess variation for biochemical and physiological parameters associated with freezing tolerance in

acidity in peach ( Boudehri et al., 2009 ; Dirlewanger et al., 2009 ). Several studies have focused on estimating heritability on a progeny-mean basis expressed as the proportion of genetic variance among a progeny to that of the phenotypic variance

of inheritance of fruit softening. Resemblance among relatives is a basic genetic phenomenon, and the degree of resemblance determines heritability, which in turn facilitates the choice of a breeding method for use in genetic improvement ( Falconer