The map below shows the geographical patterns of Heat Units in South Africa. Fruit growth and maturation are dependent on physiological, biochemical and physical processes, including the prevailing temperature during the fruit developmental period. Different types of fruit have varying heat unit requirements. This map shows the distribution of heat units in South Africa.



SOURCE: Schulze RE 2007. South African atlas of climatology and agrohydrology. WRC Report No. 1489/1/06.