Effect of nitrogen and sulphur fertilisation on yields, nitrates and cysteine and methionine content in onion (Allium cepa L.)

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of nitrogen and sulphur fertilisation on yields, nitrates and cysteine and methionine content in onion (Allium cepa L.)

Popis výsledku v původním jazyce

This study explored the interactive effects of two doses of nitrogen and two levels of soil sulphur on onion yields, nitrate content and concentration of the amino acids cysteine and methionine under accurately controlled conditions. Onions were cultivated in Mitscherlich pots with 6 kg of soil with a low content of S-SO42- (5 ppm, S0) or a high content (30 ppm, S1) with added doses of 0.6 (N1) and 1.2 (N2) g N pot-1 as (NH4)2SO 4 and NH4NO3. There were no significant differences (P<0.05) in onion yields between the two N doses. The higher sulphur content (S1) increased yields by 7.0-8.4% compared with S0 for both doses of nitrogen. The nitrate content in fresh onion increased with nitrogen dose (225 and 566 mg NO3- kg -1 for N1 and N2 respectively). High sulphur reduced the nitrate content of onions by 19.3-20.5% depending on nitrogen dose. The contents of cysteine and methionine increased by on average 39.1% and 25%, respectively, with increasing nitrogen dose. Soil sulphur content d

Název v anglickém jazyce

Effect of nitrogen and sulphur fertilisation on yields, nitrates and cysteine and methionine content in onion (Allium cepa L.)

Popis výsledku anglicky

This study explored the interactive effects of two doses of nitrogen and two levels of soil sulphur on onion yields, nitrate content and concentration of the amino acids cysteine and methionine under accurately controlled conditions. Onions were cultivated in Mitscherlich pots with 6 kg of soil with a low content of S-SO42- (5 ppm, S0) or a high content (30 ppm, S1) with added doses of 0.6 (N1) and 1.2 (N2) g N pot-1 as (NH4)2SO 4 and NH4NO3. There were no significant differences (P<0.05) in onion yields between the two N doses. The higher sulphur content (S1) increased yields by 7.0-8.4% compared with S0 for both doses of nitrogen. The nitrate content in fresh onion increased with nitrogen dose (225 and 566 mg NO3- kg -1 for N1 and N2 respectively). High sulphur reduced the nitrate content of onions by 19.3-20.5% depending on nitrogen dose. The contents of cysteine and methionine increased by on average 39.1% and 25%, respectively, with increasing nitrogen dose. Soil sulphur content d

Druh

D - Stať ve sborníku

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acta Horticulturae

ISBN

978-90-6605-742-5

ISSN

0567-7572

e-ISSN

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Počet stran výsledku

8

Strana od-do

297-304

Název nakladatele

International Society for Horticultural Science

Místo vydání

Leuven

Místo konání akce

Malmö

Datum konání akce

22. 9. 2008

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000313515600037