Abstract
Nitrogen fertilization is one of the main management systems that affects safflower (Carthamus tinctorius) production. However, the response of safflower to nitrogen fertilization may vary depending on the genotype and growing conditions. The objective of this study was to evaluate the influence of nitrogen fertilization on yield components, oil content, and protein content of safflower genotypes in subtropical conditions. Two experiments were performed to evaluate the effect of nitrogen fertilization (0 and 160 kg ha–1) on six safflower genotypes. The experiment was designed in randomized blocks, in a 2 × 6 factorial design, with six repetitions. The height of the plants, yield, and oil and protein contents were determined 170 and 160 days after emergence in 2017 and 2018, respectively. The oil content and protein content of safflower genotypes were affected by nitrogen fertilization, but this effect varied depending on the genotype. Genotype 4 dominated with a grain yield of 1088 kg ha–1 and an oil yield of 215 kg ha–1. Nitrogen fertilization increased the grain yield, oil content, and protein content; thus, it is appropriate for the cultivation of safflower off-season in autumn-winter in subtropical conditions. Safflower genotype 4 could be a promising oilseed crop for southern Brazil when fertilized with 100 kg ha–1 of N.
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Claims 8
Claim · model-written summary
Nitrogen effects on safflower oil and protein content varied by genotype.
- Taxon
- safflower
Carthamus tinctoriuse0 - Material
- genotypee0
- Treatment
- nitrogen fertilizatione0
- Outcome
- oil content and protein contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oil content and protein content of safflower genotypes were affected by nitrogen fertilization, but this effect varied depending on the genotype.”
Claim · model-written summary
Genotype 4 had grain yield of 1088 kg ha–1.
- Taxon
- safflowerCarthamus tinctoriuse1
- Material
- Genotype 4e0
- Outcome
- grain yielde0
- Direction
- dominatede0
- Value
- 1088 kg ha–1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotype 4 dominated with a grain yield of 1088 kg ha–1”
e1“safflower genotypes in subtropical conditions”
Claim · model-written summary
Genotype 4 had oil yield of 215 kg ha–1.
- Taxon
- safflowerCarthamus tinctoriuse1
- Material
- Genotype 4e0
- Outcome
- oil yielde0
- Direction
- dominatede0
- Value
- 215 kg ha–1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotype 4 dominated with a grain yield of 1088 kg ha–1 and an oil yield of 215 kg ha–1”
e1“safflower genotypes in subtropical conditions”
Claim · model-written summary
Nitrogen fertilization increased safflower grain yield.
- Taxon
- safflowerCarthamus tinctoriuse1
- Treatment
- Nitrogen fertilizatione0
- Outcome
- grain yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization increased the grain yield, oil content, and protein content”
e1“safflower genotypes in subtropical conditions”
Claim · model-written summary
Nitrogen fertilization increased safflower oil content.
- Taxon
- safflowerCarthamus tinctoriuse1
- Treatment
- Nitrogen fertilizatione0
- Outcome
- oil contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization increased the grain yield, oil content, and protein content”
e1“safflower genotypes in subtropical conditions”
Claim · model-written summary
Nitrogen fertilization increased safflower protein content.
- Taxon
- safflowerCarthamus tinctoriuse1
- Treatment
- Nitrogen fertilizatione0
- Outcome
- protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization increased the grain yield, oil content, and protein content”
e1“safflower genotypes in subtropical conditions”
Claim · model-written summary
The authors recommend nitrogen fertilization for off-season safflower cultivation.
- Taxon
- safflowerCarthamus tinctoriuse0
- Outcome
- cultivation of safflower off-season in autumn-wintere0
- Setting
- subtropical conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is appropriate for the cultivation of safflower off-season in autumn-winter in subtropical conditions”
Claim · model-written summary
The authors consider genotype 4 promising in southern Brazil at 100 kg ha–1 N.
- Taxon
- SafflowerCarthamus tinctoriuse0
- Material
- genotype 4e0
- Treatment
- 100 kg ha–1 of Ne0
- Outcome
- promising oilseed crope0
- Setting
- southern Brazile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Safflower genotype 4 could be a promising oilseed crop for southern Brazil when fertilized with 100 kg ha–1 of N.”
The same questions in other papers
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See all 9 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.