Abstract
Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage in 2009-2011 growing seasons. Different agronomical traits were measured and seven selection indices including stress susceptibility index (SSI), stress tolerance index (STI), tolerance (TOL), mean productivity (MP), geometric mean productivity (GMP), yield index (YI), yield stability index (YSI) were calculated based on grain yield. Results of combined analysis over the experiments showed significant variation (P<0.01) among the genotypes for all the studied traits and they were decreased due to water stress. Even safflower was known as tolerant crop in arid conditions but grain yield was significantly affected by drought stress in both years, which it showed the importance of irrigation at flowering stage. Drought had highly significant difference on all of the studied traits. The interaction between genotype× drought treatments was highly significant for the number of head per plant, number of grains per head. Genotype ×year interaction was significant for heads per plant, grains per head and grain yield. The results showed, MP, HM and YI were more effective in identifying high yielding genotypes in both drought-stressed and irrigated conditions because of ability of selecting high yielding genotypes in either stressed or non-stressed conditions. The results of bi-plot graphs indicated that the most desirable genotypes for stress and non-stress conditions were Esfahan 14, Esfahan-28 and Shiraz which can be promising genotypes for water limited environments. They can be utilized as donor in breeding programs for further improvement in drought tolerance of safflower genotypes.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Water deficit stress decreased the studied traits of safflower genotypes
- Taxon
- safflower
Carthamus tinctoriuse1 - Treatment
- water deficit stress at flowering stagee1
- Outcome
- for all the studied traitse2
- Direction
- decreasede2
- Comparator
- well-watered irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e2“Results of combined analysis over the experiments showed significant variation (P<0.01) among the genotypes for all the studied traits and they were decreased due to water stress”
Claim · model-written summary
Drought stress significantly affected safflower grain yield in both years
- Taxon
- safflowerCarthamus tinctoriuse1
- Treatment
- drought stresse3
- Outcome
- grain yielde3
- Comparator
- well-watered irrigatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e3“grain yield was significantly affected by drought stress in both years”
Claim · model-written summary
Genotype by year interaction was significant for heads per plant, grains per head and grain yield of safflower
- Taxon
- safflowerCarthamus tinctoriuse1
- Outcome
- Genotype ×year interactione4
- Qualifier
- heads per plant, grains per head and grain yielde4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e4“Genotype ×year interaction was significant for heads per plant, grains per head and grain yield”
Claim · model-written summary
Genotype by drought treatment interaction was highly significant for head number and grain number per head of safflower
- Taxon
- safflowerCarthamus tinctoriuse1
- Outcome
- genotype× drought treatmentse5
- Qualifier
- number of head per plant, number of grains per heade5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e5“The interaction between genotype× drought treatments was highly significant for the number of head per plant, number of grains per head”
Claim · model-written summary
MP, HM and YI were more effective than the other selection indices in identifying high yielding safflower genotypes
- Taxon
- safflowerCarthamus tinctoriuse1
- Outcome
- identifying high yielding genotypese6
- Direction
- more effectivee6
- Qualifier
- in both drought-stressed and irrigated conditionse6
- Comparator
- seven selection indicese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e6“MP, HM and YI were more effective in identifying high yielding genotypes in both drought-stressed and irrigated conditions”
e7“seven selection indices including stress susceptibility index (SSI), stress tolerance index (STI), tolerance (TOL), mean productivity (MP), geometric mean productivity (GMP), yield index (YI), yield stability index (YSI) were calculated based on grain yield”
Claim · model-written summary
Esfahan 14, Esfahan-28 and Shiraz were the most desirable safflower genotypes for stress and non-stress conditions
- Taxon
- safflowerCarthamus tinctoriuse1
- Material
- Esfahan 14, Esfahan-28 and Shiraze6
- Outcome
- most desirable genotypes for stress and non-stress conditionse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e6“the most desirable genotypes for stress and non-stress conditions were Esfahan 14, Esfahan-28 and Shiraz”
Claim · model-written summary
Safflower genotypes identified here can be used as donors in breeding for drought tolerance
- Taxon
- safflower genotypesCarthamus tinctoriuse7
- Outcome
- utilized as donor in breeding programs for further improvement in drought tolerancee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“They can be utilized as donor in breeding programs for further improvement in drought tolerance of safflower genotypes”
Claim · model-written summary
Safflower genotypes differ significantly for all the studied traits
- Taxon
- safflowerCarthamus tinctoriuse1
- Outcome
- significant variatione2
- Value
- P<0.01e2
- Qualifier
- for all the studied traitse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e2“Results of combined analysis over the experiments showed significant variation (P<0.01) among the genotypes for all the studied traits and they were decreased due to water stress”
Claim · model-written summary
Drought had a highly significant effect on all the studied traits of safflower
- Taxon
- safflowerCarthamus tinctoriuse1
- Treatment
- Droughte5
- Outcome
- all of the studied traitse5
- Comparator
- well-watered irrigatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ten Iranian safflower genotypes were grown in separate experiments under well-watered irrigation and water deficit stress at flowering stage”
e5“Drought had highly significant difference on all of the studied traits”
The same questions in other papers
drought · yield · Carthamus tinctorius (safflower)Results differ
22 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- positive
26 papers more in this group
See all 30 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.