Abstract

AMADOR-MARTINEZ, Jorge Alberto; ALVAREZ-HERRERA, Javier Giovanni  and  BALAGUERA-LOPEZ, Helber Enrique. EFFECT OF CALCIUM AND WATER TABLE ON CABBAGE (Brassica oleracea L.) YIELD AND QUALITY. rev.udcaactual.divulg.cient. [online]. 2008, vol.11, n.2, pp.153-162. ISSN 0123-4226.

With the purpose of determining the effect of calcium and different water tables in cabbage (Brassica oleracea) 80 plants were put under a completely randomized design, factorial of 3x3, where the first factor corresponded to three calcium levels (80, 120 and 160kg x ha -1) and the second one to three water tables, determined by using three evaporation coefficients (0.8; 1 and 1.2 of evaporation, measured with an evaporimeter) and a treatment with a water table of 1, without calcium application, for a total of ten treatments. The research was carried out during 130 days in a greenhouse and during ten days under laboratory conditions, to evaluate the post-harvest behavior. The treatments induced significant differences for height, leaf area, fresh weight of leaves, stem and head, dry weight of roots and head, pH and loss of fresh weight; and highly significant differences in total soluble solids and within the economic analysis. With the application of a water table of 0.8 and 160kg x ha^-1 of Ca the greatest fresh weight of heads was obtained and a higher fresh phytomass for each inverted peso (33.76g x $). Therefore, this treatment is recommended to be implemented by cabagge producers. The water table of 1 and 160kg x ha^-1 of Ca, allowed conserving cabbage in better conditions during post-harvest.

Keywords : Phytomass; post-harvest; Brix degree; evaporation; vegetables.

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