Abstract
Although safflower is widely distributed in Iran, other diversity centers have also been reported in many Asian and European countries, especially arid regions of the world. In this research 15 domestic and 42 exotic safflower genotypes were evaluated for drought tolerance in three locations of Najafabad (Isfahan), Jiroft and Jopar (Kerman), using a lattice design at normal and drought stress conditions. Water stress was applied at budding stage and depletion of 85% of available soil water. Results showed that drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%). Drought stress did not significantly affect number of seeds per capitulum in Najafabad and Jopar locations but significantly decreased it in Jiroft location, leading to a lower seed yield in Jiroft compared to two other locations. According to principle components analysis based on drought-tolerance/susceptibility indices, genotype number 29 (PI- 657800) originating from Egypt was identified as the most drought tolerant genotype across all three locations. Moreover, genotypes number 37 (PI- 657820) originating from Jordan, 31 (CART 64) originating from Slovakia and 4 (PI- 239707) originating from Turkey were the most drought tolerant genotypes in Najafabad, Jiroft and Jopar, respectively. Generally, domestic genotypes had high oil content (more than 30%). The exotic tolerant genotypes with high and sustainable yield in this germplasm can provide useful gene pool for breeding of domestic genotypes with desirable traits such as high oil content. Also, there is the possibility to find stable - yielding genotypes in this worldwide collection.
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Claims 15
Claim · model-written summary
Drought stress significantly decreased seed yield by 30.20%.
- Taxon
- safflower
Carthamus tinctoriust0 - Treatment
- drought stresse0
- Outcome
- seed yielde0
- Direction
- decreasede0
- Value
- 30.20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%)”
Claim · model-written summary
Drought stress significantly decreased oil yield by 32.28%.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- drought stresse0
- Outcome
- oil yielde0
- Direction
- decreasede0
- Value
- 32.28%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%)”
Claim · model-written summary
Drought stress significantly decreased oil content by 3.54%.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- drought stresse0
- Outcome
- oil contente0
- Direction
- decreasede0
- Value
- 3.54%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%)”
Claim · model-written summary
Drought stress significantly decreased number of capitulums per plant by 16.77%.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- drought stresse0
- Outcome
- number of capitulums per plante0
- Direction
- decreasede0
- Value
- 16.77%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%)”
Claim · model-written summary
Drought stress significantly decreased number of seeds per capitulum by 16.04%.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- drought stresse0
- Outcome
- number of seeds per capitulume0
- Direction
- decreasede0
- Value
- 16.04%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%)”
Claim · model-written summary
Drought stress significantly decreased plant height by 4.43%.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- drought stresse0
- Outcome
- plant heighte0
- Direction
- decreasede0
- Value
- 4.43%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“drought stress significantly decreased most of the traits, including seed yield (30.20%), oil yield (32.28%), oil content (3.54%), number of capitulums per plant (16.77%), number of seeds per capitulum (16.04%) and plant height (4.43%)”
Claim · model-written summary
Drought stress did not significantly affect seeds per capitulum in Najafabad and Jopar.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- Drought stresse0
- Outcome
- number of seeds per capitulume0
- Direction
- did not significantly affecte0
- Setting
- Najafabad and Jopare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“Drought stress did not significantly affect number of seeds per capitulum in Najafabad and Jopar locations but significantly decreased it in Jiroft location, leading to a lower seed yield in Jiroft compared to two other locations.”
Claim · model-written summary
Drought stress significantly reduced seeds per capitulum in Jiroft.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- Drought stresse0
- Outcome
- number of seeds per capitulume0
- Direction
- decreasede0
- Setting
- Jirofte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“Drought stress did not significantly affect number of seeds per capitulum in Najafabad and Jopar locations but significantly decreased it in Jiroft location, leading to a lower seed yield in Jiroft compared to two other locations.”
Claim · model-written summary
Seed yield in Jiroft was lower than in the other two locations.
- Taxon
- safflowerCarthamus tinctoriust0
- Outcome
- seed yielde0
- Direction
- lowere0
- Comparator
- two other locationse0
- Setting
- Jirofte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“Drought stress did not significantly affect number of seeds per capitulum in Najafabad and Jopar locations but significantly decreased it in Jiroft location, leading to a lower seed yield in Jiroft compared to two other locations.”
Claim · model-written summary
PI- 657800 was identified as the most drought tolerant genotype in across all three locations.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- PI- 657800e0
- Outcome
- most drought tolerant genotypee0
- Setting
- across all three locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“genotype number 29 (PI- 657800) originating from Egypt was identified as the most drought tolerant genotype across all three locations”
Claim · model-written summary
PI- 657820 was identified as the most drought tolerant genotype in Najafabad.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- PI- 657820e0
- Outcome
- most drought tolerant genotypee0
- Setting
- Najafabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“genotypes number 37 (PI- 657820) originating from Jordan, 31 (CART 64) originating from Slovakia and 4 (PI- 239707) originating from Turkey were the most drought tolerant genotypes in Najafabad, Jiroft and Jopar, respectively”
Claim · model-written summary
CART 64 was identified as the most drought tolerant genotype in Jiroft.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- CART 64e0
- Outcome
- most drought tolerant genotypee0
- Setting
- Jirofte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“genotypes number 37 (PI- 657820) originating from Jordan, 31 (CART 64) originating from Slovakia and 4 (PI- 239707) originating from Turkey were the most drought tolerant genotypes in Najafabad, Jiroft and Jopar, respectively”
Claim · model-written summary
PI- 239707 was identified as the most drought tolerant genotype in Jopar.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- PI- 239707e0
- Outcome
- most drought tolerant genotypee0
- Setting
- Jopare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“genotypes number 37 (PI- 657820) originating from Jordan, 31 (CART 64) originating from Slovakia and 4 (PI- 239707) originating from Turkey were the most drought tolerant genotypes in Najafabad, Jiroft and Jopar, respectively”
Claim · model-written summary
Domestic genotypes had oil content above 30%.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- domestic genotypese0
- Outcome
- oil contente0
- Direction
- highe0
- Value
- more than 30%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“domestic genotypes had high oil content (more than 30%)”
Claim · model-written summary
Exotic tolerant genotypes were recommended as a breeding gene pool for high yield and oil content.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- exotic tolerant genotypese0
- Outcome
- useful gene pool for breeding of domestic genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Safflower”
e0“The exotic tolerant genotypes with high and sustainable yield in this germplasm can provide useful gene pool for breeding of domestic genotypes with desirable traits such as high oil content.”
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