Abstract
Octoploid progenies from species crosses between Fragaria virginiana Duch. ⨯ F. chiloensis (L.) Duch., F. virginiana ⨯ F. ⨯ ananassa Duch., and 2 BC1 crosses to F. ⨯ ananassa were grown in replicated plots and data obtained on winter survival, vigor of growth, time of bloom, productivity, and size of fruit. The ‘Ambato’ clone of F. chiloensis from South America transmitted susceptibility to winter injury and its progenies were weak. Progenies with the ‘Sheldon’ clone of F. virginiana as a parent were vigorous, early blossoming, productive, and had small fruit. ‘Sheldon’ ⨯ ‘Midland’ was most vigorous and the earliest blossoming of all progenies. US 3563 ⨯ ‘Midland’ and ‘Surecrop’ ⨯ ‘Midland’ progenies were the most productive. Among the progenies ‘Surecrop’ ⨯ ‘Ambato’ and ‘Surecrop’ ⨯ ‘Midland’ had the largest mean size of fruit; ‘Sheldon’ ⨯ ‘Yaquina’ the smallest. The ‘Ambato’ and ‘Yaquina’ clones of F. chiloensis differed in transmission of characteristics to their progenies.