Abstract
Stomatal frequency in leaves of plants of Iris hollandica, cultivated under four light intensities, about 12%, 37%, 75% and 100% of natural daylight, was studied. The stomatal frequency decreases with lower light intensities. The gradients of stomatal frequency of successive leaves show an increase up to the third or fourth leaf with a subsequent decrease of values up to the highest leaf. The total number of stomata per leaf is not constant; differences exist in successive leaves of a shoot as well as among the leaves of plants growing under various light intensities. The character of gradients was changed at lower light intensities. The largest reaction to the light intensity appeared in leaves with higher stomatal frequency. The gradients in individual leaves depend on the insertion of the leaf. Both the shape and the slope of these gradients are influenced by the light intensity.
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Claims 7
Claim · model-written summary
Stomatal frequency decreased under lower light intensity.
- Taxon
- Iris hollandica
Iris ×hollandicae0 - Organ / stage
- leavese0
- Treatment
- lower light intensitiese1
- Outcome
- stomatal frequencye1
- Direction
- decreasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomatal frequency in leaves of plants of Iris hollandica, cultivated under four light intensities, about 12%, 37%, 75% and 100% of natural daylight, was studied.”
e1“The stomatal frequency decreases with lower light intensities.”
Claim · model-written summary
Stomatal frequency increased across successive leaves to the third or fourth leaf, then decreased up to the highest leaf.
- Taxon
- Iris hollandicaIris ×hollandicae0
- Organ / stage
- successive leavese1
- Outcome
- stomatal frequencye1
- Direction
- an increase up to the third or fourth leaf with a subsequent decreasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iris hollandica”
e1“The gradients of stomatal frequency of successive leaves show an increase up to the third or fourth leaf with a subsequent decrease of values up to the highest leaf.”
Claim · model-written summary
Total stomata per leaf varied among successive leaves of a shoot and among plants grown under different light intensities.
- Taxon
- Iris hollandicaIris ×hollandicae0
- Organ / stage
- leavese1
- Outcome
- total number of stomata per leafe1
- Direction
- not constante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iris hollandica”
e1“The total number of stomata per leaf is not constant; differences exist in successive leaves of a shoot as well as among the leaves of plants growing under various light intensities.”
Claim · model-written summary
Lower light intensities changed the character of stomatal frequency gradients.
- Taxon
- Iris hollandicaIris ×hollandicae0
- Treatment
- lower light intensitiese1
- Outcome
- character of gradientse1
- Direction
- changede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iris hollandica”
e1“The character of gradients was changed at lower light intensities.”
Claim · model-written summary
Leaves with higher stomatal frequency showed the largest response to light intensity.
- Taxon
- Iris hollandicaIris ×hollandicae0
- Organ / stage
- leavese1
- Outcome
- reaction to the light intensitye1
- Direction
- largeste1
- Comparator
- higher stomatal frequencye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iris hollandica”
e1“The largest reaction to the light intensity appeared in leaves with higher stomatal frequency.”
Claim · model-written summary
Gradients within individual leaves depended on leaf insertion.
- Taxon
- Iris hollandicaIris ×hollandicae0
- Organ / stage
- individual leavese1
- Outcome
- gradientse1
- Qualifier
- insertion of the leafe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iris hollandica”
e1“The gradients in individual leaves depend on the insertion of the leaf.”
Claim · model-written summary
Light intensity influenced the shape and slope of leaf gradients.
- Taxon
- Iris hollandicaIris ×hollandicae0
- Treatment
- light intensitye1
- Outcome
- shape and the slope of these gradientse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iris hollandica”
e1“Both the shape and the slope of these gradients are influenced by the light intensity.”