The Relation of the Distribution of Citrus to Soil Type and Winter Temperature in Orange County, Florida

Abstract

SINCE THE sixteenth century when citrus was first grown in Florida1 the destruction of trees by periodic "freezes" has been the major problem in citrus cultivation.Production has consequently come to be restricted to the southern two-thirds of the state, where the risk of killing winter temperatures is relatively small. But occasionally even this limited citrus-growing area (Figure 1 ) has experienced disaster. Unexpected invasions of particularly cold air have damaged trees in certain locations, sometimes ruining the producer economically. In this century serious freezes have occurred