Glasnik Zaštite Bilja, Vol. 33 No. 6, 2010.
Original scientific paper
Glucosinolates concentration and yield of broccoli cultivars in different growing periods
Sanja Fabek
; Agronomski fakultet Sveučilišta u Zagrebu, Zavod za povrćarstvo
Nina Toth
; Agronomski fakultet Sveučilišta u Zagrebu, Zavod za povrćarstvo
Abstract
In recent decades, broccoli consumption in Croatia increased due to its exceptional nutritive value, which depends on genetic, abiotic factors and agronomic factors. Because of the genotype, there are significant variation in the concentration of bioactive compounds among broccoli cultivars which affects on the human health. Variations in concentration of phytochemicals is the major problem in the production of vegetables as functional food, while uniform level of health is expected.As numerous broccoli cultivars are available at the market, research with the aim to select promising hybrid broccoli cultivars for growing in agroecological conditions of northwestern Croatia, with high values of yield and concentration of individual and total glucosinolates in different growing periods.
The highest values of top inflorescence yield were achieved by ‘Parthenon’ (13.3 t/ha) in spring-summer growing period and ‘Montop’ (15.0 t/ha) in summer-autumn growing period. There were significant differences among broccoli cultivars in total glucosinolates concentration. The values of total glucosinolates in broccoli top inflorescence were significantly higher during spring-summer growing period (12 to 22.5 μmol/g dry weight) than in summer-autumn growing period (5.4 to 15.5 μmol/g dry weight).
Keywords
Brassica oleracea L. var. italica; top inflorescence; glucobrassicin; glucoraphanin
Hrčak ID:
163325
URI
Publication date:
14.12.2010.
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