Claim · model-written summary
Sunflower plants with higher potassium levels had higher yield and higher dry matter allocation to grain filling (harvest index).
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- higher levels of potassiume0
- Outcome
- yield and dry matter allocation to grain filling process i.e. harvest indexe0
- Direction
- highere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sunflower (Helianthus annuus L.)”
e0“plants with higher levels of potassium showed higher resistance to drought stress conditions and higher yield and dry matter allocation to grain filling process i.e. harvest index”
Title
Soleimanzadeh American Journal of Agricultural and Biological Sciences 2010. doi:10.3844/ajabssp.2010.56.61
Other claims from this paper (7)
- Intervention effect Drought stress significantly increased SOD, CAT and GPX activity in sunflower compared with control plants.
- Intervention effect Drought stress significantly increased MDA in sunflower compared with control plants.
- Intervention effect Higher potassium levels significantly decreased SOD, CAT and GPX activity in sunflower compared with control plants.
- Intervention effect Higher potassium levels significantly decreased MDA in sunflower compared with control plants.
- Intervention effect Sunflower plants with higher potassium levels showed higher resistance to drought stress.
- Mechanism The authors suggest drought stress leads to production of oxygen radicals, which increases lipid peroxidation (MDA) and oxidative stress in the plant.
- Mechanism The authors conclude that the scavenging system, especially SOD, CAT and GPX, worked well and membrane damage (MDA) was controlled at higher potassium levels.