Study design

A randomised complete block design with four blocks was used to lay out a factorial experiment at Ukulinga Research Farm, University of KwaZulu-Natal, Pietermaritzburg. Details of the field plan and treatments are presented on the next page. Two cultivars (Umtata – a determinate variety and Kranskop – an indeterminate variety) were used for the experiment.These cultivars are genetically different and are two of the most popular varieties shown to be suitable for the environment around Pietermaritzburg.