Abstract
According to the increasing need of our country to edible oil and also according to the limit of country water sources and its effect on yield and production of oil plants, an experiment was conducted in order to evaluate the response of safflower to drought stress, in a split plot arrangement based on randomized complete block design with three replications at Research Farm, Research Center of Kerman Agricultural Institute. The main plots included four irrigation levels (complete irrigation, irrigation disruption from the flowering stage, irrigation disruption from the heading-bud and irrigation disruption from stem elongation) and the secondary plots included three cultivars of safflower (Esfahan local, Kerman local and IL genotype). The results of this experiment showed that irrigation disruption in all stages caused a significant reduction of plant height, leaf area index (LAI), dry matter at max LAI, seed yield and components, biological yield, harvest index, oil percentage and oil yield. Maximum seed and oil yield was obtained in normal irrigation treatment, and irrigation disruption from flowering, heading-bud and stem elongation stages were in the next ranks, respectively. Among the cultivars, the highest and lowest seed yield was related to IL and Kerman local, respectively. Also among the yield components, number of seeds per head had the highest correlation with the grain yield. In overall, the results of this study showed that supplying suitable water amount during the growth period and sowing the Esfahan local cultivar prepare best yield production possibility. In contrast, with the limit in water sources and the possibility of encountering of the plant with drought stress during the growth period, IL cultivar is better than the other cultivars.
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Claims 8
Claim · model-written summary
Irrigation disruption reduced plant height, leaf area index, and dry matter at maximum LAI significantly.
- Taxon
- safflower
Carthamus tinctoriust0 - Treatment
- irrigation disruption in all stagese0
- Outcome
- plant height, leaf area index (LAI), dry matter at max LAIe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation disruption in all stages caused a significant reduction of plant height, leaf area index (LAI), dry matter at max LAI”
t0“safflower”
Claim · model-written summary
Irrigation disruption significantly reduced seed yield and components, biological yield, and harvest index.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- irrigation disruption in all stagese0
- Outcome
- seed yield and components, biological yield, harvest indexe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation disruption in all stages caused a significant reduction of plant height, leaf area index (LAI), dry matter at max LAI, seed yield and components, biological yield, harvest index”
t0“safflower”
Claim · model-written summary
Irrigation disruption significantly reduced oil percentage and oil yield.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- irrigation disruption in all stagese0
- Outcome
- oil percentage and oil yielde0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation disruption in all stages caused a significant reduction of plant height, leaf area index (LAI), dry matter at max LAI, seed yield and components, biological yield, harvest index, oil percentage and oil yield”
t0“safflower”
Claim · model-written summary
Normal irrigation produced maximum seed and oil yield, followed by disruption from flowering, heading-bud, and stem elongation.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- normal irrigation treatmente0
- Outcome
- seed and oil yielde0
- Direction
- Maximume0
- Comparator
- irrigation disruption from flowering, heading-bud and stem elongation stagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum seed and oil yield was obtained in normal irrigation treatment, and irrigation disruption from flowering, heading-bud and stem elongation stages were in the next ranks, respectively”
t0“safflower”
Claim · model-written summary
IL had the highest seed yield and Kerman local the lowest.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- ILe0
- Outcome
- seed yielde0
- Direction
- higheste0
- Comparator
- Kerman locale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest and lowest seed yield was related to IL and Kerman local, respectively”
t0“safflower”
Claim · model-written summary
Seeds per head had the highest correlation with grain yield among yield components.
- Taxon
- safflowerCarthamus tinctoriust0
- Organ / stage
- seeds per heade0
- Outcome
- grain yielde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of seeds per head had the highest correlation with the grain yield”
t0“safflower”
Claim · model-written summary
The authors recommend suitable water and Esfahan local for best yield.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- Esfahan locale0
- Outcome
- best yield production possibilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“supplying suitable water amount during the growth period and sowing the Esfahan local cultivar prepare best yield production possibility”
t0“safflower”
Claim · model-written summary
Under limited water and drought risk, IL is preferred over other cultivars.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- IL cultivare0
- Outcome
- better than the other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the limit in water sources and the possibility of encountering of the plant with drought stress during the growth period, IL cultivar is better than the other cultivars”
t0“safflower”
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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.