Abstract
Environmental factors, mainly temperature and water availability, play a major role with genotype factor in oil quality of sunflower. To manage seed composition through cultural practices and genotype choice under scarce water resources is one way to provide an added-value to crop yield and to diversify uses for edible oil or for non food applications in Mediterranean regions. The study of interactions between crop management and genotypes for yield and also for major seed compounds (oil, protein and fatty acids) was conducted in the Rotation-Quality device in Toulouse-Auzeville (France) during three experimental years. Two standard populations and four hybrids (two oleic and two standard), well adapted to cropping systems in Morocco and France, were investigated in conventional and late sowing dates associated with non-irrigated and irrigated treatments. For all genotypes, delay of sowing improves protein content and seed weight but decreases yield, stronger for populations compared with hybrids whereas oil content is not depressed. Globally, in irrigated crop, only the percentage of protein in seed dry matter decreases. The oleic and linoleic acids contents in standard hybrids seeds are sensitive to sowing date whereas oleic hybrids and populations' contents are relatively more stable. Indeed, oleic acid content in standard hybrid seeds increases with a concomitant reduction of linoleic acid content in the case of late sowing. Water regime does not affect the oleic and linoleic acids. The delay in sowing decreases stearic and palmitic acid contents in oleic hybrid seeds, and in standard hybrid seeds only palmitic acid content. These saturated fatty acids contents are not affected by irrigation treatment. Close negative correlations between oleic and linoleic acids and between oleic and palmitic acids are present in all genotypes and treatments. Our results suggest that there exist different genotype behaviors for fatty acids accumulation in response to crop management.
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Claims 12
Claim · model-written summary
Delayed sowing improved seed protein content and weight.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- delay of sowinge0
- Outcome
- protein content and seed weighte0
- Direction
- improvese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For all genotypes, delay of sowing improves protein content and seed weight but decreases yield, stronger for populations compared with hybrids whereas oil content is not depressed”
t0“sunflower”
Claim · model-written summary
Delayed sowing reduced yield, more strongly in populations than hybrids.
- Taxon
- sunflowerHelianthus annuust0
- Material
- populationse0
- Treatment
- delay of sowinge0
- Outcome
- yielde0
- Direction
- decreasese0
- Qualifier
- stronger for populations compared with hybridse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For all genotypes, delay of sowing improves protein content and seed weight but decreases yield, stronger for populations compared with hybrids whereas oil content is not depressed”
t0“sunflower”
Claim · model-written summary
Delayed sowing did not depress oil content.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- oil contente0
- Direction
- not depressede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas oil content is not depressed”
t0“sunflower”
Claim · model-written summary
Irrigation decreased the percentage of seed protein in dry matter.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- irrigated crope0
- Outcome
- percentage of protein in seed dry mattere0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Globally, in irrigated crop, only the percentage of protein in seed dry matter decreases”
t0“sunflower”
Claim · model-written summary
Oleic acid in standard hybrid seeds increased with late sowing.
- Taxon
- sunflowerHelianthus annuust0
- Material
- standard hybrid seedse0
- Treatment
- late sowinge0
- Outcome
- oleic acid contente0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oleic acid content in standard hybrid seeds increases with a concomitant reduction of linoleic acid content in the case of late sowing”
t0“sunflower”
Claim · model-written summary
Linoleic acid in standard hybrid seeds decreased with late sowing.
- Taxon
- sunflowerHelianthus annuust0
- Material
- standard hybrid seedse0
- Treatment
- late sowinge0
- Outcome
- linoleic acid contente0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oleic acid content in standard hybrid seeds increases with a concomitant reduction of linoleic acid content in the case of late sowing”
t0“sunflower”
Claim · model-written summary
Water regime did not affect oleic and linoleic acids.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Water regimee0
- Outcome
- oleic and linoleic acidse0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water regime does not affect the oleic and linoleic acids”
t0“sunflower”
Claim · model-written summary
Delayed sowing decreased stearic and palmitic acids in oleic hybrid seeds.
- Taxon
- sunflowerHelianthus annuust0
- Material
- oleic hybrid seedse0
- Treatment
- delay in sowinge0
- Outcome
- stearic and palmitic acid contentse0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The delay in sowing decreases stearic and palmitic acid contents in oleic hybrid seeds”
t0“sunflower”
Claim · model-written summary
Delayed sowing decreased palmitic acid in standard hybrid seeds.
- Taxon
- sunflowerHelianthus annuust0
- Material
- standard hybrid seedse0
- Outcome
- palmitic acid contente0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and in standard hybrid seeds only palmitic acid content”
t0“sunflower”
Claim · model-written summary
Irrigation did not affect saturated fatty acids.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- irrigation treatmente0
- Outcome
- saturated fatty acids contentse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These saturated fatty acids contents are not affected by irrigation treatment”
t0“sunflower”
Claim · model-written summary
Oleic and linoleic acids were negatively correlated.
- Taxon
- sunflowerHelianthus annuust0
- Material
- all genotypese0
- Outcome
- oleic and linoleic acidse0
- Direction
- negative correlationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Close negative correlations between oleic and linoleic acids and between oleic and palmitic acids are present in all genotypes and treatments”
t0“sunflower”
Claim · model-written summary
Oleic and palmitic acids were negatively correlated.
- Taxon
- sunflowerHelianthus annuust0
- Material
- all genotypese0
- Outcome
- oleic and palmitic acidse0
- Direction
- negative correlationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Close negative correlations between oleic and linoleic acids and between oleic and palmitic acids are present in all genotypes and treatments”
t0“sunflower”
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See all 53 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.