Claim · model-written summary
Low oxygen increased the Na and N‐NO3 content of sunflower leaves.
- Taxon
- sunflower
Helianthus annuuse6 - Organ / stage
- leavese6
- Treatment
- Low oxygene6
- Outcome
- Na and N‐NO3 contente6
- Direction
- increasede6
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Low oxygen reduced the accumulation of K, Ca and Mg and increased the Na and N‐NO3 content of sunflower leaves”
Title
G.T. Pessoa da Costa; A.J.M. Smucker Journal of Plant Nutrition 1981. doi:10.1080/01904168109362886
Other claims from this paper (7)
- Intervention effect Low oxygen combined with low nitrogen and 70 meq/1 NaCl caused the greatest reduction of sunflower growth.
- Intervention effect Sunflower plant height and dry weight decreased with each type of stress.
- Intervention effect Low nitrogen and excess salt reduced sunflower leaf number.
- Intervention effect Low oxygen reduced the accumulation of K, Ca and Mg in sunflower leaves.
- Intervention effect Potassium to sodium ratios in sunflower decreased with greater EC values of the nutrient solution and low soil ODR.
- Method / resource Ion accumulation is an earlier indicator of sunflower stress than plant growth.
- Observation Seed germination of sunflower was excellent in all treatments.