Folia Horticulturae

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Effect of nitrogen fertilization on the senescence reaction of short-term stored spring cabbage (Brassica oleracea L. var. capitata)

Anna Mareczek, Maria Leja, Stanisław Rożek

Department of Plant Physiology
Faculty of Horticulture, University of Agriculture in Kraków
29 Listopada 54, 31-425 Kraków, Poland

Spring cabbage (Brassica oleracea L. var. capitata) grown in a foil tunnel and fertilized with three different forms of nitrogen (nitrate, ammonium, and urea) was stored at 20°C and at 5°C. Ethylene evolution, activity of ACC oxidase, activity of peroxidase, and cell membrane permeability, as related to storage temperature and nitrogen treatments, were investigated. Ethylene production and activity of ACC oxidase decreased during short storage at both temperatures. A considerable increase in peroxidase activity was observed during storage, particularly at low temperature. An increase in cell membrane permeability was also observed. The above changes were more distinct in 1994 than in 1995, this being due to the various physiological age of the plants.

The effect of nitrogen fertilization resulted in higher activity of ACC oxidase (1994 and 1995) and ethylene evolution (1995) in samples treated with nitrogen in reduced form. A higher activity of peroxidase (POD) in stored cabbage was found in the case of ammonium in comparison with the other treatments.

Mareczek A., Leja M., Rożek S., 2000. Effect of nitrogen fertilization on the senescence reaction of short-term stored spring cabbage (Brassica oleracea L. var. capitata). Folia Horticulturae 12/2: 11-20.