Abstract
Abstract To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture. A factorial arrangement of solutions containing 1.7, 15.0, and 41.7 mg L−1 S and 10, 50, 90, and 130 mg L−1 N were used. Bulb pungency and bulb fresh and dry weight were affected by both S and N treatments. Depletion patterns for most of the macronutrients from the nutrient solutions during plant growth were affected by N and S levels, and differed depending on the N and S combination. In certain N and S combinations, magnesium (Mg) and calcium (Ca) usage were unaffected over time. Bulb N levels increased with N fertility and decreased slightly with S availability, while bulb phosphorous levels responded linearly to N fertility. Overall changes in bulb Ca and Mg levels were minor, but were influenced by N and S fertility. Bulb S content was affected by low S and N fertility, decreasing with each. Boron levels in onion bulbs decreased with increasing N and S fertility, while bulb manganese, iron, and zinc concentrations tended to increase with increasing N availability and decrease with increasing S. Potassium, copper, and molybdenum bulb concentrations were unaffected by N or S fertility. These results have the potential of being used as a reference in developing nutritional programs designed for optimal onion performance having specific flavor intensities. Keywords: Anion analysisCation analysisHPLCICP-AESMacronutrientMicronutrientPungencyPyruvic acidSoluble solids
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Claims 10
Claim · model-written summary
Bulb pungency and bulb fresh and dry weight of onion were affected by both sulfur and nitrogen treatments.
- Taxon
- onion
Allium cepae0 - Material
- Granex 33e0
- Treatment
- nitrogen (N) and sulfur (S) fertilitye0
- Outcome
- Bulb pungency and bulb fresh and dry weighte1
- Setting
- greenhousee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Bulb pungency and bulb fresh and dry weight were affected by both S and N treatments”
Claim · model-written summary
Bulb N levels of onion increased with nitrogen fertility.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- N fertilitye1
- Outcome
- Bulb N levelse1
- Direction
- increasede1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Bulb N levels increased with N fertility and decreased slightly with S availability”
Claim · model-written summary
Bulb N levels of onion decreased slightly with sulfur availability.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- S availabilitye1
- Outcome
- Bulb N levelse1
- Direction
- decreased slightlye1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Bulb N levels increased with N fertility and decreased slightly with S availability”
Claim · model-written summary
Bulb phosphorus levels of onion responded linearly to nitrogen fertility.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- N fertilitye1
- Outcome
- bulb phosphorous levelse1
- Qualifier
- responded linearlye1
- Setting
- greenhousee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“bulb phosphorous levels responded linearly to N fertility”
Claim · model-written summary
Bulb S content of onion decreased with low sulfur and nitrogen fertility.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- low S and N fertilitye1
- Outcome
- Bulb S contente1
- Direction
- decreasinge1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Bulb S content was affected by low S and N fertility, decreasing with each”
Claim · model-written summary
Boron levels in onion bulbs decreased with increasing nitrogen and sulfur fertility.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- increasing N and S fertilitye1
- Outcome
- Boron levels in onion bulbse1
- Direction
- decreasede1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Boron levels in onion bulbs decreased with increasing N and S fertility”
Claim · model-written summary
Bulb manganese, iron and zinc concentrations of onion tended to increase with increasing nitrogen availability.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- increasing N availabilitye1
- Outcome
- bulb manganese, iron, and zinc concentrationse1
- Direction
- tended to increasee1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“bulb manganese, iron, and zinc concentrations tended to increase with increasing N availability”
Claim · model-written summary
Bulb manganese, iron and zinc concentrations of onion decreased with increasing sulfur.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- increasing Se2
- Outcome
- bulb manganese, iron, and zinc concentrationse1
- Direction
- decreasee2
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“bulb manganese, iron, and zinc concentrations tended to increase with increasing N availability”
e2“decrease with increasing S”
Claim · model-written summary
Potassium, copper and molybdenum concentrations in onion bulbs were unaffected by nitrogen or sulfur fertility.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- N or S fertilitye1
- Outcome
- Potassium, copper, and molybdenum bulb concentrationse1
- Direction
- unaffectede1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Potassium, copper, and molybdenum bulb concentrations were unaffected by N or S fertility”
Claim · model-written summary
Overall changes in bulb calcium and magnesium levels of onion were minor but influenced by nitrogen and sulfur fertility.
- Taxon
- onionAllium cepae0
- Material
- Granex 33e0
- Treatment
- N and S fertilitye1
- Outcome
- Overall changes in bulb Ca and Mg levelse1
- Qualifier
- minore1
- Setting
- greenhousee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effects of nitrogen (N) and sulfur (S) fertility on onion (Allium cepa L.) bulb pungency, bulb fresh and dry weight, nutrient uptake and accumulation in the bulb, "Granex 33" onions were greenhouse grown using nutrient solution culture”
e1“Overall changes in bulb Ca and Mg levels were minor, but were influenced by N and S fertility”