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Assessment of quality attributes of endive (Cichorium endivia L.) depending on a cultivar and growing conditions

100%

Kowalczyk K., Gajc-Wolska J., Marcinkowska M., Jabrucka-Pioro E.

Acta Scientiarum Polonorum. Hortorum Cultus

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2015

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tom 14

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nr 2

Endive plants were hydroponically grown in greenhouse control conditions. The aim of this investigation was to assess the biological quality of endive cultivated in three different growing media. Organic media: coconut fiber and wood fiber, were compared to rockwool, commonly used as a standard horticultural medium in greenhouse vegetable production. Three crispum leaf endive cultivars: ‘Galanti’, ‘Perceval’ and ‘Barundi’ and one latifolium leaf cultivar (escarole chicory): ‘Kethel’ were examined during the spring time. At about 10 days before harvest the plants were covered with low tunnel made from double-sided black and white foil to bleach the leaves and at 5–7 days before the end of the experiment nutrient solution was replaced by water to reduce the nitrate concentration in the leaves of endive. The content of dry matter, ascorbic acid, total soluble solids (TSS), total sugars (TS), phenolic acids and nitrates (NO3), P, K and Ca was determined in leaves of both bleached and not bleached plants. Also the antioxidant activity was measured by two assays DPPH and FRAP. The effect of cultivation substrate, cultivar, and bleaching treatment on the quality of endive appeared diversed. The unbleached endive showed a higher content of dry mass, higher concentrations of sugars, TSS, potassium, and calcium than the bleached plants. The bleached plants had significantly lower fresh mass of plants (by 33% in average), but in turn were characterized by higher concentrations of phosphorus and polyphenolic acids. Plants cultivated on wood fiber contained the smallest amount of nitrates, comparing to plants grown either on rockwool or coconut fiber. None of the investigated plants contained more nitrates than the acceptable level of nitrates for lettuce grown under cover. The antioxidant activity of endive plants measured by FRAP method was higher in not bleached endive plants than in the bleached ones. The antioxidant impact of endive plants expressed as DPPH was not reduced in response to bleaching. The highest antioxidant activity was observed in plants of ‘Kethel’.

2

Yield and nutritive value of selected endive cultivars grown for spring and autumn harvest

100%

Uklanska-Pusz C. M., Adamczewska-Sowinska K.

Folia Horticulturae

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2011

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tom 23

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nr 2

3

The effect of form and dose of nitrogen fertilizer on yielding and biological value of endive

100%

Adamczewska-Sowinska K., Milowana Uklanska C.

Acta Scientiarum Polonorum. Hortorum Cultus

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2010

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tom 09

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nr 2

Endive, like another leafy vegetables, as an annual plant with short time vegetation is prone to nitrate accumulation. The aim of research conducted in the years 2007–2009 was the assessment of the effect of diversified nitrogen doses on growth, yielding and nutritive value of two ‘Excel’ and ‘Cigal’ –endive cultivars. There were compared the effects of two kinds of fertilizer: ammonium saltpeter and Entec 26 containing DMPP nitrification inhibitor. On the basis of the results obtained it was possible to prove that ‘Excel’ endive cultivar gave marketable yield higher, average, by 19.4% as compared to Cigal cv. Significantly increased marketable yield of endive, regardless its variety, resulted from a single application of Entec 26 fertilizer, especially in the doses of 90 and 135 kg N·ha-1. The experiments also pointed to the fact that the method of fertilization, as well as nitrogen doses did considerably affect biological value of the examined endive varieties Excel cultivar characterized higher degree of nitrates accumulation and higher content of carotenoids, while Cigal cultivar featured increased content of vitamin C (average by 8.8%), dry matter and chlorophyll.

4

Spizarnia pod sniegiem

75%

Przybyl J.

Kwietnik

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2007

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nr 01

34-36

5

Wartość biologiczna odmian endywii uprawianej w terminie wiosennym i jesiennym

75%

Adamczewska-Sowinska K., Uklanska C. M.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2009

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tom 539

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nr 1

Doświadczenie przeprowadzono w latach 2007-2008 w Stacji Badawczo- Dydaktycznej Katedry Ogrodnictwa Uniwersytetu Przyrodniczego we Wrocławiu. Badaniami objęto 14 odmian endywii, należącej do dwóch odmian botanicznych: endywii kędzierzawej i endywii eskariola, uprawianych z rozsady w dwóch terminach: wiosennym i jesiennym. Wartość biologiczną endywii oceniono na podstawie analiz dotyczących zawartości suchej masy, witaminy C, chlorofilu i karotenoidów oraz makroelementów Mg, P, K i Ca, a także azotanów. Odmiany należące do grupy crispum charakteryzowały się wyższą zawartością suchej masy, chlorofilu i karotenów, a także makroskładników, zaś odmiany z grupy latifolium zawierały więcej witaminy C. Jesienny termin uprawy był korzystniejszy pod względem ilości substancji odżywczych występujących w liściach endywii. Stwierdzono bowiem istotnie większą zawartość suchej masy, witaminy C, karotenów, Mg i P, a jednocześnie mniejszą ilość azotanów.

Ograniczanie wyników

2 Acta Scientiarum Polonorum. Hortorum Cultus

1 Folia Horticulturae

1 Kwietnik

1 Zeszyty Problemowe Postępów Nauk Rolniczych

3 Adamczewska-Sowinska K.

1 Gajc-Wolska J.

1 Jabrucka-Pioro E.

1 Kowalczyk K.

1 Marcinkowska M.

1 Milowana Uklanska C.

1 Przybyl J.

1 Uklanska C. M.

1 Uklanska-Pusz C. M.

1 2015

1 2011

1 2010

1 2009

1 2007

Assessment of quality attributes of endive (Cichorium endivia L.) depending on a cultivar and growing conditions

Yield and nutritive value of selected endive cultivars grown for spring and autumn harvest

The effect of form and dose of nitrogen fertilizer on yielding and biological value of endive

Spizarnia pod sniegiem

Wartość biologiczna odmian endywii uprawianej w terminie wiosennym i jesiennym