‘SCS425 Luiza’: new apple cultivar with medium chilling requirement and resistant to glomerella leaf spot (colletotrichum spp.)

Abstract

Apple is one of the main agribusiness products of temperate-zone fruits in Southern Brazil. More than 90% of apple production is obtained from only two apple cultivars – Gala and Fuji and their mutations. These apple varieties are insufficiently adapted to the regional climate and ‘Gala’ and its mutations are also susceptible to glomerella leaf spot – GLS, currently the main apple disease in Brazil. ‘SCS425 Luiza’ cultivar was developed by Epagri / Estação Experimental Caçador, aiming to offer to the production chain an early apple variety better adapted to the environmental conditions of Southern Brazil and resistant to GLS. ‘SCS425 Luiza’ cultivar was obtained by artificial hybridization carried out in 2001 using the cultivars Imperatriz and Cripps Pink as parents. ‘SCS425 Luiza’ has lower chilling requirement compared to ‘Galaxy’, higher flowering precocity and yield potential at least equivalent to ‘Galaxy’. It produces fruits with skin finish, flavor and flesh texture adequate for the Brazilian market and storability similar to ‘Galaxy’ apples when harvested at the same maturity.

SCS426 Venice: new apple cultivar with glomerella leaf spot resistance and picking time in March

“…The Apple Breeding Program of Epagri aims to offer fruit growers new cultivars that are better adapted to the local climate and that have better resistance to prevalent diseases. It has already developed promising cultivars (Denardi et al 2015a). These characteristics, that have been developed, assist yield performance of the orchards and fruit quality over time, and they help reduce production costs, meeting the expectations of apple growers.…”

Self-incompatibility alleles in important genotypes for apple breeding in Brazil

“…According to the official pedigree, the cultivar 'SCS425 Luiza' is a descendant of 'Imperatriz' (S 3 S 5 -♀) and 'Cripps Pink' (S 2 S 23 -♂) (Denardi et al 2019b), and is a sibling of 'SCS427 Elenise' and 'M-10/09' ( Table 1). The S-allele genotypes were S 3 S 23 and S 5 S 23 for the cultivar 'SCS427 Elenise' and selection M-10/09, respectively.…”

Indicação de genótipos polinizadores para os cultivares de macieira SCS425 Luiza e SCS427 Elenise

“…Todos os genótipos candidatos a polinizadores foram desenvolvidos pela Epagri, sendo que 'SCS426 Venice' produz frutos de alto valor comercial e é resultado do cruzamento entre 'Imperatriz' e 'Baronesa' (DENARDI et al, 2019b). Os cvs.…”