Abstract
Core Ideas Positive effect of genotype and N on yield and protein in grains and meal. No effect of genotype and N on concentration of oil in grain. High oleic genotypes showed higher protein concentration of grains and by‐products. Nitrogen increased the protein /oil ratio of the grains. Nitrogen improved the quality of sunflower by‐products. Sunflower ( Helianthus annuus L.) conventional (CONV) and high oleic (HO) genotypes differ in yield and quality. Nitrogen affects grain yield, quality, and by‐products protein concentration. The objective was to evaluate the effect of genotype and N on grain yield, oil (O G ) and protein (P G ) concentration in grain and in by‐products (P M ). The effect of genotype was evaluated in Exp. 1 with 7 CONV and 7 HO hybrids, at two planting dates (PD early and late). The effect of N (Exp. 2) was evaluated in 10 locations (3 with CONV and 7 with HO), under six N rates (0, 30, 60, 90, 120, and 150 kg N ha −1 ). We determined yield, O G , P G and P M . For the early PD of E 1 , yield was higher in HO than CONV genotypes (3822 kg ha −1 vs. 3495 kg ha −1 ). In Exp. 2, N increased yield in 50% of the locations (HO: 586; CONV: 597 kg ha −1 ). In Exp. 1, genotype did not affect O G , but P G was higher in HO than in CONV ones (18.0 vs. 16.8%, respectively). In Exp. 2, N did not affect O G , but increased P G in both types of genotypes. Consequently, P G /O G ratio increased with N rates. The higher P G , was also reflected in higher P M (44.0% HO and 38.8% CONV, respectively). Increases of 2.5% points in P G resulted in increases of 5.6 in P M . Therefore, the application of N would allow obtaining high yields and P G without detrimental effects on O G , improving the quality of grains and by‐products.
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Claims 10
Claim · model-written summary
High oleic (HO) sunflower genotypes yielded more than conventional (CONV) genotypes at the early planting date.
- Taxon
- Sunflower
Helianthus annuuse0 - Treatment
- HOe1
- Outcome
- yielde1
- Direction
- highere1
- Value
- 3822 kg ha −1 vs. 3495 kg ha −1e1
- Comparator
- CONVe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e1“For the early PD of E 1 , yield was higher in HO than CONV genotypes (3822 kg ha −1 vs. 3495 kg ha −1)”
Claim · model-written summary
Nitrogen increased sunflower yield in 50% of the locations.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- Ne2
- Outcome
- yielde2
- Direction
- increasede2
- Value
- 50%e2
- Qualifier
- HO: 586; CONV: 597 kg ha −1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e2“In Exp. 2, N increased yield in 50% of the locations (HO: 586; CONV: 597 kg ha −1 )”
Claim · model-written summary
Genotype did not affect grain oil concentration in Exp. 1.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- genotypee3
- Outcome
- O Ge3
- Direction
- did not affecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e3“In Exp. 1, genotype did not affect O G , but P G was higher in HO than in CONV ones (18.0 vs. 16.8%, respectively)”
Claim · model-written summary
Grain protein concentration was higher in HO than in CONV genotypes in Exp. 1.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- HOe3
- Outcome
- P Ge3
- Direction
- highere3
- Value
- 18.0 vs. 16.8%e3
- Comparator
- CONVe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e3“In Exp. 1, genotype did not affect O G , but P G was higher in HO than in CONV ones (18.0 vs. 16.8%, respectively)”
Claim · model-written summary
Nitrogen did not affect grain oil concentration in Exp. 2.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- Ne4
- Outcome
- O Ge4
- Direction
- did not affecte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e4“In Exp. 2, N did not affect O G , but increased P G in both types of genotypes”
Claim · model-written summary
Nitrogen increased grain protein concentration in both genotype types.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- Ne4
- Outcome
- P Ge4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e4“In Exp. 2, N did not affect O G , but increased P G in both types of genotypes”
Claim · model-written summary
The P G /O G ratio increased with nitrogen rates.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- N ratese5
- Outcome
- P G /O G ratioe5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e5“Consequently, P G /O G ratio increased with N rates”
Claim · model-written summary
Meal protein (P M) was higher in HO than in CONV genotypes.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- HOe6
- Outcome
- P Me6
- Direction
- highere6
- Value
- 44.0% HO and 38.8% CONVe6
- Comparator
- CONVe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e6“The higher P G , was also reflected in higher P M (44.0% HO and 38.8% CONV, respectively)”
Claim · model-written summary
An increase of 2.5% points in P G was associated with an increase of 5.6 in P M.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- Increases of 2.5% points in P Ge7
- Outcome
- P Me7
- Direction
- increasese7
- Value
- 5.6e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e7“Increases of 2.5% points in P G resulted in increases of 5.6 in P M”
Claim · model-written summary
Applying nitrogen would allow high yields and P G without detrimental effects on O G.
- Taxon
- SunflowerHelianthus annuuse0
- Treatment
- the application of Ne1
- Outcome
- high yields and P G without detrimental effects on O Ge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower ( Helianthus annuus L.)”
e1“the application of N would allow obtaining high yields and P G without detrimental effects on O G”
The same questions in other papers
nitrogen · yield · Helianthus annuus (common sunflower)Positive and negative results
181 papers in the same direction as this paper · 10 in the opposite direction · 4 reporting no difference from an alternative
- positive
- positive
- negative
192 papers more in this group
See all 196 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.