Influence of urban gardening conditions on the concentration of antioxidant secondary plant metabolites in kale
M B Bayer, Susanne Neugart, Tobias Pöhnl
DOAJ (DOAJ: Directory of Open Access Journals)
Urban Farm DB summary
This study compared kale (Brassica oleracea var. sabellica L.) grown in all four cardinal directions of a residential building, including indoor cultivation behind UV-filtering glass windows. Total carotenoid concentration benefited from sun-exposed growing locations, including the indoor glass condition, while concentrations of nutritionally important lutein did not differ among locations despite their differing abiotic stress conditions (sun exposure, temperature, water). Total phenolic concentration profited most from direct sunlight but was severely reduced behind glass windows. Satisfying growth rates were achieved under all tested conditions.