Claim · model-written summary
Ammonium or urea supply inhibited tomato transpiration rate, stomatal conductance and photosynthetic activity.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- nitrogen was added as ammonium or ureae1
- Outcome
- transpiration rate, stomatal conductance and photosynthetic activitye1
- Direction
- inhibitede1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“When nitrogen was added as ammonium or urea, dry weight, chlorophyll tenor, transpiration rate, stomatal conductance and photosynthetic activity were inhibited”
e0“N-fertilization type affected differently tomato growth”
Title
Photosynthesis sensitivity to NH4+-N change with nitrogen fertilizer type
A. Nasraoui-Hajaji; H. Gouia Plant Soil and Environment 2014. doi:10.17221/7418-pse
Other claims from this paper (6)
- Intervention effect Compared to nitrate, ammonium and urea had negative effects on tomato morphology and dry matter production.
- Intervention effect Ammonium or urea supply inhibited tomato dry weight and chlorophyll content.
- Intervention effect Ammonium or urea supply reduced the Fv/Fm ratio and photochemical quenching in tomato.
- Intervention effect Ammonium or urea supply enhanced non photochemical quenching in tomato.
- Mechanism The authors suggest that the decrease in tomato growth under ammonium or urea supply may be related principally to inhibition of net photosynthesis activity.
- Mechanism The high non photochemical quenching in tomato fed ammonium or urea indicated that PS II was the inhibitory site of NH4+-N.