Usefulness of Selected Strawberry (Fragaria × Ananassa) Genotypes for Breeding Late Ripening Cultivars

A diallel crossing approach aimed on selection for ripening time and yield in breeding of new strawberry (Fragaria × ananassa Duch.) cultivars

“…Further diallel crosses were performed to study the inheritance of late ripening time (Zurawicz et al. ), fruit yield and related factors (Aalders and Craig , Zurawicz et al. ), and resistance to Colletotrichum acutatum , powdery mildew caused by Sphaerotheca macularis , and Phytophthora fragariae (Melville et al.…”

“…In strawberry, such diallel crosses have been conducted to study the inheritance of quantitative traits such as marketable fruit yield, fruit weight, susceptibility to grey mould, fruit colour and fruit firmness (Masny et al 2005). Further diallel crosses were performed to study the inheritance of late ripening time (Zurawicz et al 2006), fruit yield and related factors (Aalders andCraig 1974, Zurawicz et al 1995), and resistance to Colletotrichum acutatum, powdery mildew caused by Sphaerotheca macularis, and Phytophthora fragariae (Melville et al 1980, Gimenez and Ballington 2002, Davik and Honne 2005.…”

Modes of morphogenesis inheritance in vitro in strawberry (Fragaria x ananassa Duch.)

“…In strawberry, such diallel crosses were conducted to investigate the inheritance of quantitative traits, such as fruit yield, fruit weight, susceptibility to gray mold or color and firmness of fruits (Masny et al 2005). Such crosses were performed to study the inheritance of fruit ripening time (Żurawicz et al 2006;Bestfleisch et al 2013), resistance to Colletotrichum acutatum, and powdery mildew caused by Sphaerotheca macularis and Phytophthora fragariae (Melville et al 1980;Gimenez and Ballington 2002;Davik and Honne 2005). The third Griffing method of diallel crossing was fully useful for achieving the purpose of the research, because it allowed, by comparing the effects of reciprocal crosses for each crossing combination, determining the possible impact of extranuclear loci on the inheritance of morphogenetic abilities in the analyzed species.…”

Breeding value of selected blackcurrant (Ribes nigrum L.) genotypes for early-age fruit yield and its quality

“…Additionally, knowledge of the breeding value, as well as the fundamental knowledge of inheritance and the genetic determination of quantitative traits at the population level, increase the probability of achieving the desired goal quicker (Muszyński 2000). The breeding value of a parental forms is determined primarily on the basis of the effects of the general (GCA) and specific (SCA) combining abilities of that parental forms _ Zurawicz et al 2006). The GCA of a parent for the trait under consideration determines its ability to pass on the average level of this trait to its progeny (Baker 1978;Vieira et al 2009), and the GCA effect is a measure of the additive effect of the parental genes on this trait (Griffing 1956a, b).…”