Evaluation of multiple rootstocks for ‘Montenegrina’ mandarin in Londrina, Paraná, Brazil

Abstract Most commercial orchards of mandarins in Paraná grow ‘Ponkan’ trees predominantly grafted on ‘Rangpur’ lime. The limited genetic diversity citrus for both scion and rootstock may promote pest disease outbreaks. late season ‘Montenegrina’ willowleaf mandarin has high potential orchard diversification because its higher productivity better fruit quality. Therefore, this study assessed the agronomic performance multiple rootstocks under edaphoclimatic conditions Londrina, Paraná, Brazil. trial was set a randomized block design using lime, ‘Cleopatra’ mandarin, ‘Sunki’ ‘Swingle’ citrumelo, ‘Fepagro C-13’ citrange replicated six times. were vegetative growth, yield, had similar size regardless rootstock, low alternate bearing indices. quality parameters varied among between four cropping seasons. Fruits from exhibited highest maturation indices, whereas those produced larger fruits with number seeds. In general, can be grown all evaluated without incompatibility loses Northern