General combining ability of ten strawberry cultivars for ripening time, fruit quality and resistance to main leaf diseases under Polish conditions.

摘要: The aim of the study was to estimate combining ability 10 strawberry cultivars ('Camarosa', 'Darselect', 'Elsanta', 'Gariguette', 'Granda', 'Honeoye', 'Kent', 'Kimberly', 'Rosie' and 'Vikat') for 6 traits in order evaluate their usefulness breeding program. progenies obtained from 45 crosses (diallel cross design, Griffing's 4 method) were evaluated field experiment (randomized complete block design replicates with 15 plants per plot) located Pomological Orchard, Skierniewice, Central Poland. Observations across two seasons (2005 2006) six traits: time fruit ripening, marketable yield, weight, infection by grey mould plant susceptibility leaf diseases (leaf scorch caused Diplocarpon earliana powdery mildew Sphaerotheca macularis) recorded. Statistical analysis data carried out according fixed model separately each season. In both GCA SCA effects significantly differentiated almost all (excluding gray 2006). Variation predominantly larger than variation over years. Late ripening cultivar 'Vikat' showed highest positive effect (consistent seasons). Most other exhibited moderately negative this trait. 'Granda' 'Darselect' could be promising donors size - trait seasons. 'Kimberly' can transmit high degree resistance pathogens D. S. macularis, 'Gariguette' 'Camarosa' 'Kent' macularis.