Optimizing Orange Grove Factors for Fruit Production and Harvesting

Ten hectares of oranges were planted in 1980 in an experiment to investigate optimal management practices for different tree spacings, scion, and rootstock combinations. Experimental factors included two between-row spacings (6.0, 4.5 m), two in-row spacings (4.5, 2.5 m), two scions (‘Hamlin’, early season; ‘Valencia’, late season), two rootstocks (Milam, vigorous; Rusk citrange, moderately vigorous), and two tree heights (3.7, 5.5 m).