Container size influences broccoli brassica oleracea var italica and cauliflower brassica oleracea var botrytis transplant growth but not yield
Dufault, R.J.; Waters, L.Jr
HortScience 20(4): 682-684
Broccoli and cauliflower were seeded and grown for 4 wk in containers ranging from 3.8-30.5 cm3 in volume, 2.0-4.3 cm wide, 3.2-7.2 cm deep, and at densities of 540-2500 plants/m2. The objective of the study was to determine the effect of container size on growth of 4-wk-old plants and on their subsequent yield. The number of leaves/plant, leaf dry weight/plant, plant height and leaf area/plant of 4-wk-old broccoli and cauliflower plants generally increased with increasing container width, volume and decreasing plant density. Container depth did not affect these variables, except to increase plant height as depth increased. Container volume, width, and depth and density did not affect marketable yields of broccoli and cauliflower. Earliness, length of harvest season and cull yields of broccoli and cauliflower generally were unaffected by container size. Small containers (2.0 cm wide, 3.2 to 4.5 cm deep, 3.8 to 5.9 cm3 in volume, and 2500 plants/m2) are economical and appropriate depending on seedbed conditions.