ARI Biennial Review for 2018-2019

CITRICULTURE Citrus rootstock-scion relations on calcareous soils: Effects of citrus rootstocks on yield and quality characteristics of four citrus scion cultivars (‘Delta’ orange, ‘Lane Late’ navel orange, ‘Nova’ mandarin, ‘Ortanique’ hybrid) The aim of the citrus rootstock evaluation programme is to identify rootstocks tolerant to the tristeza virus capable of replacing Sour Orange, the rootstock commercially used in Cyprus, which is highly susceptible to the virus. The commercial cultivars ‘Delta’ orange, ‘Lane Late’ navel orange, ‘Nova’ mandarin, ‘Ortanique’ hybrid were grafted on various rootstocks and cultivated on calcareous soils with the following main objectives: a) evaluation of rootstock effects on scion performance, b) evaluation of rootstock effects on scion fruit maturation profile, c) evaluation of rootstock effects on scion fruit quality characteristics. (M.G. Emmanouilidou, M.C. Kyriacou) 24 FRUIT TREES