Claim · model-written summary
Number of filled seeds per head and seed weight were reduced under heat stress.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- heat stresse0
- Outcome
- number of filled seeds per head and seed weighte3
- Direction
- reducede3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of heat stress on seed yield components and oil composition in high- and mid-oleic sunflower hybrids”
e0“to assess the effect of heat stress, applied during grain-filling”
e3“Head diameter and the sterile area of the head increased, but number of filled seeds per head and seed weight were reduced”
Title
Rouxléne van der Merwe; Maryke T Labuschagne; Liezel Herselman; et al. South African Journal of Plant and Soil 2015. doi:10.1080/02571862.2015.1018354
Other claims from this paper (11)
- Intervention effect Heat treatment altered all measured traits of the sunflower hybrids.
- Observation Genotypes differed in their sensitivity to temperature.
- Intervention effect Head diameter and the sterile area of the head increased under heat stress.
- Intervention effect HO 4 showed an increase in grain yield under heat stress.
- Intervention effect HO 4 showed the largest decrease in oil content under heat stress.
- Intervention effect Average oil concentration was significantly reduced by 6% under heat stress.
- Intervention effect Concentrations of palmitic, stearic and oleic acids increased under heat stress.
- Intervention effect Linoleic acid concentration was reduced under heat stress.
- Observation MO genotypes 6, 8 and 12 were stable for seed yield under heat stress.
- Observation MO genotypes 8 and 10 were stable for oil concentration under heat stress.
- Observation No single sunflower genotype was stable for all measured traits.