Abstract
An experiment was set up as a split-plot factorial in a randomized complete block design with three replications to investigate the response of sesame genotypes to different seed priming methods under optimal water supply and drought stress conditions. The main factor was irrigation regime at three levels of irrigation after 45 % depletion of available soil water (control), irrigation after 65 % depletion of available soil water (moderate stress), and irrigation after 85 % depletion of available soil water (sever stress). The seed priming at five levels of none-priming (control), priming with pure water, priming with salicylic acid, priming with K 2 SO 4 , and priming with ZnSO 4 and genotype at three levels (Darab 14, Oltan, and Karaj) were factorially located in the sub plots. The results showed that the moderate and sever stress regimes boosted the H 2 O 2 level, proline and soluble sugars contents, anthocyanin amount, and activity of catalase, superoxide dismutase, peroxidase, and polyphenol oxidase while relative water content, leaf area index, number of capsules per plant, 1000-seed weight, biomass, seed yield, harvest index, and water use efficiency were reduced in such conditions. All seed priming treatments positively improved sesame development and growth under three irrigation regimes by enhancing the plant water content, upregulating the enzymatic and non-enzymatic defense system, and decreasing ROS production. The highest sesame seed yield was recorded in seed priming treatment with salicylic acid, averaging 1152.7 kg ha −1 . The Karaj genotype produced the higher seed yield under control, moderate stress, and sever stress regimes (1765.7, 1271.0, and 771.4 kg ha −1 , respectively). Overall, the results of the current study suggest that seed priming can be used as a practical solution to reduce the harmful effects of drought stress on the growth and yield of sesame genotypes. Finally, combination of the Karaj genotype × seed priming with salicylic acid is recommended to obtain the maximum sesame seed yield.
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Claims 13
Claim · model-written summary
Moderate and severe drought increased sesame H 2 O 2, proline and soluble sugar contents.
- Treatment
- moderate and sever stress regimese0
- Outcome
- H 2 O 2 level, proline and soluble sugars contentse0
- Direction
- boostede0
Not reportedTaxonComparator
Verbatim
e0“moderate and sever stress regimes boosted the H 2 O 2 level, proline and soluble sugars contents”
Claim · model-written summary
Moderate and severe drought increased sesame anthocyanin and four antioxidant enzyme activities.
- Treatment
- moderate and sever stress regimese0
- Outcome
- anthocyanin amounte0
- Direction
- boostede0
- Qualifier
- activity of catalase, superoxide dismutase, peroxidase, and polyphenol oxidasee0
Not reportedTaxonComparator
Verbatim
e0“moderate and sever stress regimes boosted the H 2 O 2 level, proline and soluble sugars contents, anthocyanin amount, and activity of catalase, superoxide dismutase, peroxidase, and polyphenol oxidase”
Claim · model-written summary
Moderate and severe drought reduced sesame relative water content and leaf area index.
Not reportedTaxonComparator
Verbatim
e0“relative water content, leaf area index, number of capsules per plant, 1000-seed weight, biomass, seed yield, harvest index, and water use efficiency were reduced in such conditions”
Claim · model-written summary
Moderate and severe drought reduced sesame capsules per plant, seed weight and biomass.
- Treatment
- such conditionse0
- Outcome
- number of capsules per plant, 1000-seed weight, biomasse0
- Direction
- reducede0
Not reportedTaxonComparator
Verbatim
e0“number of capsules per plant, 1000-seed weight, biomass, seed yield, harvest index, and water use efficiency were reduced in such conditions”
Claim · model-written summary
Moderate and severe drought reduced sesame seed yield, harvest index and water use efficiency.
- Treatment
- such conditionse0
- Outcome
- seed yield, harvest index, and water use efficiencye0
- Direction
- reducede0
Not reportedTaxonComparator
Verbatim
e0“seed yield, harvest index, and water use efficiency were reduced in such conditions”
Claim · model-written summary
Seed priming improved sesame development and growth under all three irrigation regimes.
- Taxon
- sesame
Sesamum indicume0 - Treatment
- All seed priming treatmentse0
- Outcome
- sesame development and growthe0
- Direction
- improvede0
- Qualifier
- under three irrigation regimese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All seed priming treatments positively improved sesame development and growth under three irrigation regimes”
Claim · model-written summary
Seed priming enhanced sesame water content and defense systems and decreased ROS production.
- Outcome
- plant water contente0
- Direction
- enhancinge0
- Qualifier
- upregulating the enzymatic and non-enzymatic defense system, and decreasing ROS productione0
Not reportedTaxonTreatmentComparator
Verbatim
e0“by enhancing the plant water content, upregulating the enzymatic and non-enzymatic defense system, and decreasing ROS production”
Claim · model-written summary
Salicylic acid priming produced the highest sesame seed yield, averaging 1152.7 kg ha −1.
- Taxon
- sesameSesamum indicume0
- Treatment
- seed priming treatment with salicylic acide0
- Outcome
- sesame seed yielde0
- Direction
- higheste0
- Value
- 1152.7 kg ha −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest sesame seed yield was recorded in seed priming treatment with salicylic acid, averaging 1152.7 kg ha −1”
Claim · model-written summary
Karaj had the higher seed yield under control irrigation, at 1765.7 kg ha −1.
Not reportedTaxon
Verbatim
e0“The Karaj genotype produced the higher seed yield under control, moderate stress, and sever stress regimes (1765.7, 1271.0, and 771.4 kg ha −1 , respectively)”
Claim · model-written summary
Karaj had the higher seed yield under moderate stress, at 1271.0 kg ha −1.
Not reportedTaxon
Verbatim
e0“The Karaj genotype produced the higher seed yield under control, moderate stress, and sever stress regimes (1765.7, 1271.0, and 771.4 kg ha −1 , respectively)”
Claim · model-written summary
Karaj had the higher seed yield under severe stress, at 771.4 kg ha −1.
Not reportedTaxon
Verbatim
e0“The Karaj genotype produced the higher seed yield under control, moderate stress, and sever stress regimes (1765.7, 1271.0, and 771.4 kg ha −1 , respectively)”
Claim · model-written summary
The authors recommend seed priming to reduce drought damage to sesame growth and yield.
- Taxon
- sesameSesamum indicume0
- Treatment
- seed priminge0
- Outcome
- seed priming can be used as a practical solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed priming can be used as a practical solution to reduce the harmful effects of drought stress on the growth and yield of sesame genotypes”
Claim · model-written summary
The authors recommend Karaj combined with salicylic acid seed priming for maximum sesame seed yield.
- Taxon
- sesameSesamum indicume0
- Material
- Karaje0
- Treatment
- seed priming with salicylic acide0
- Outcome
- maximum sesame seed yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination of the Karaj genotype × seed priming with salicylic acid is recommended to obtain the maximum sesame seed yield”
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salicylic acid · yield · Sesamum indicum (sesame)Results agree
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- positive
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19 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
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See all 23 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.