Abstract
Investigations were focused on light effects on allocation of root-borne macronutrients (calcium, magnesium and potassium) and micronutrients (iron, manganese, zinc and copper) in roots, shoots and harvested grains of wheat (Triticum aestivum L.). Plants were exposed to low (100 μmol photons m−2 s−1) or high light (380 μmol photons m−2 s−1). High light stimulated both root and shoot growth. While the total contents per plant of some nutrients were markedly higher (calcium and potassium) or lower (copper) under high light, no major differences were observed for other nutrients. The distribution of nutrients and the further redistribution within the shoot were influenced by the light intensity in an element-specific manner. Nutrients were selectively directed to the leaves of the main shoot (low light) or to the tillers (high light). The quality of the harvested grains was also affected by the light intensity.
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Claims 9
Claim · model-written summary
High light stimulated root and shoot growth of hydroponic wheat compared with low light.
- Taxon
- wheat
Triticum aestivumt0 - Organ / stage
- root and shoote1
- Treatment
- high light (380 μmol photons m−2 s−1)e0
- Outcome
- growthe1
- Direction
- stimulatede1
- Comparator
- low (100 μmol photons m−2 s−1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e0“Plants were exposed to low (100 μmol photons m−2 s−1) or high light (380 μmol photons m−2 s−1)”
e1“High light stimulated both root and shoot growth”
Claim · model-written summary
High light markedly increased the total calcium content per plant of wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- under high lighte2
- Outcome
- total contents per plante2
- Direction
- markedly highere2
- Qualifier
- calciume2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e2“the total contents per plant of some nutrients were markedly higher (calcium and potassium) or lower (copper) under high light”
Claim · model-written summary
High light markedly increased the total potassium content per plant of wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- under high lighte2
- Outcome
- total contents per plante2
- Direction
- markedly highere2
- Qualifier
- potassiume2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e2“the total contents per plant of some nutrients were markedly higher (calcium and potassium) or lower (copper) under high light”
Claim · model-written summary
High light lowered the total copper content per plant of wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- under high lighte2
- Outcome
- total contents per plante2
- Direction
- lowere2
- Qualifier
- coppere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e2“the total contents per plant of some nutrients were markedly higher (calcium and potassium) or lower (copper) under high light”
Claim · model-written summary
Under high light, total contents per plant of the other nutrients showed no major differences.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- under high lighte2
- Outcome
- total contents per plante2
- Direction
- no major differencese3
- Qualifier
- other nutrientse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e2“the total contents per plant of some nutrients were markedly higher (calcium and potassium) or lower (copper) under high light”
e3“no major differences were observed for other nutrients”
Claim · model-written summary
Light intensity influenced the distribution and redistribution of nutrients within the wheat shoot in an element-specific manner.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- shoote4
- Treatment
- light intensitye4
- Outcome
- distribution of nutrientse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e4“The distribution of nutrients and the further redistribution within the shoot were influenced by the light intensity in an element-specific manner”
Claim · model-written summary
Under low light, nutrients were directed to the leaves of the main shoot of wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leaves of the main shoote5
- Treatment
- low lighte5
- Outcome
- Nutrients were selectively directede5
- Direction
- directed toe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e5“Nutrients were selectively directed to the leaves of the main shoot (low light) or to the tillers (high light)”
Claim · model-written summary
Under high light, nutrients were directed to the tillers of wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- tillerse5
- Treatment
- high lighte5
- Outcome
- Nutrients were selectively directede5
- Direction
- directed toe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e5“Nutrients were selectively directed to the leaves of the main shoot (low light) or to the tillers (high light)”
Claim · model-written summary
Light intensity affected the quality of the harvested wheat grains.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- the light intensitye6
- Outcome
- quality of the harvested grainse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hydroponically grown wheat”
e6“The quality of the harvested grains was also affected by the light intensity”
The same questions in other papers
photon · growth · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- positive
light · growth · Triticum aestivum (wheat)Positive and negative results
45 papers in the same direction as this paper · 36 in the opposite direction · 3 reporting no difference from an alternative
- negative
- no effect
- negative
81 papers more in this group
See all 85 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.