Abstract
Abstract Water deficit or drought stress is one of the most significant abiotic stresses that induce reduction in plant growth and crops yield. Calcium chloride has been shown to ameliorate the adverse effects of drought stress on many plants. Therefore, this study aimed to investigate the role of calcium chloride in drought resistance and its effect on some physiological characteristics in sesame. Calcium is essential for good growth and structure of plants. In sesame ( Sesamum indicum L.), the foliar application of calcium chloride (C 1 =0 (control), C 2 =5, C 3 =10 and C 4 =15 mM concentration) significantly affected on grain yield under drought stress (W 1 = 7 (control, no drought stress-plants irrigation at a 7-day interval), W 2 = 12 (severe drought and plants irrigation at a 12- day interval) and W 3 = 17 (the most severe drought and plants irrigation at a 17-day interval). Drought stress reduced grain yield and 1000 seed weight, but these were enhanced by foliar application of calcium chloride when drought levels increased from W 1 to W 3 . Although the increasing calcium chloride concentration reduced the content of photosynthesis pigments in leaves, the drought treatment until W 2 increased the content of photosynthetic pigments (chlorophyll “a” and carotenoids) in leaves. The foliar application of calcium chloride increased the seed weight in plant, the number of capsules per plant, plant height, and the concentration of potassium and phosphorus in leaves and seeds. The greatest amount of potassium in leaves and seeds were measured under the W 1 C 3 treatment. Sesame plants under W 3 C 3 and W 2 C 3 had the highest amount of phosphorus in leaves and seeds, respectively. Overall, although drought stress reduced the growth and grain yield in sesame, the foliar application of calcium chloride at the concentration of 10 mM, prevented the drought-stressed sesame plants from damage by improving their physiological parameters.
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Claims 10
Claim · model-written summary
Drought reduced sesame grain yield and 1000 seed weight.
- Taxon
- sesame
Sesamum indicume1 - Treatment
- Drought stresse0
- Outcome
- grain yield and 1000 seed weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress reduced grain yield and 1000 seed weight”
e1“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Foliar calcium chloride enhanced grain yield and 1000 seed weight as drought increased.
- Taxon
- sesameSesamum indicume2
- Treatment
- foliar application of calcium chloridee0
- Outcome
- grain yield and 1000 seed weighte1
- Direction
- enhancede0
- Qualifier
- when drought levels increased from W 1 to W 3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these were enhanced by foliar application of calcium chloride when drought levels increased from W 1 to W 3”
e1“Drought stress reduced grain yield and 1000 seed weight”
e2“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Increasing calcium chloride concentration reduced leaf photosynthetic pigment content.
- Taxon
- sesameSesamum indicume1
- Treatment
- increasing calcium chloride concentratione0
- Outcome
- content of photosynthesis pigments in leavese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing calcium chloride concentration reduced the content of photosynthesis pigments in leaves”
e1“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Drought through W 2 increased chlorophyll a and carotenoids in leaves.
- Taxon
- sesameSesamum indicume1
- Treatment
- drought treatment until W 2e0
- Outcome
- content of photosynthetic pigments (chlorophyll “a” and carotenoids) in leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the drought treatment until W 2 increased the content of photosynthetic pigments (chlorophyll “a” and carotenoids) in leaves”
e1“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Foliar calcium chloride increased seed weight, capsule number and plant height.
- Taxon
- sesameSesamum indicume1
- Treatment
- foliar application of calcium chloridee0
- Outcome
- seed weight in plant, the number of capsules per plant, plant heighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The foliar application of calcium chloride increased the seed weight in plant, the number of capsules per plant, plant height”
e1“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Foliar calcium chloride increased potassium and phosphorus concentrations in leaves and seeds.
- Taxon
- sesameSesamum indicume1
- Treatment
- foliar application of calcium chloridee0
- Outcome
- concentration of potassium and phosphorus in leaves and seedse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The foliar application of calcium chloride increased the seed weight in plant, the number of capsules per plant, plant height, and the concentration of potassium and phosphorus in leaves and seeds”
e1“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Leaf and seed potassium was greatest under W 1 C 3.
- Taxon
- sesameSesamum indicume1
- Treatment
- W 1 C 3e0
- Outcome
- amount of potassium in leaves and seedse0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest amount of potassium in leaves and seeds were measured under the W 1 C 3 treatment”
e1“In sesame ( Sesamum indicum L.)”
Claim · model-written summary
Leaf phosphorus was highest under W 3 C 3.
- Taxon
- SesameSesamum indicume0
- Treatment
- W 3 C 3e0
- Outcome
- phosphorus in leavese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesame plants under W 3 C 3 and W 2 C 3 had the highest amount of phosphorus in leaves and seeds, respectively”
Claim · model-written summary
Seed phosphorus was highest under W 2 C 3.
- Taxon
- SesameSesamum indicume0
- Treatment
- W 2 C 3e0
- Outcome
- phosphorus in leaves and seedse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesame plants under W 3 C 3 and W 2 C 3 had the highest amount of phosphorus in leaves and seeds, respectively”
Claim · model-written summary
Calcium chloride at 10 mM prevented drought damage by improving physiological parameters.
- Taxon
- sesameSesamum indicume0
- Treatment
- foliar application of calcium chloride at the concentration of 10 mMe0
- Outcome
- prevented the drought-stressed sesame plants from damagee0
- Qualifier
- by improving their physiological parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the foliar application of calcium chloride at the concentration of 10 mM, prevented the drought-stressed sesame plants from damage by improving their physiological parameters”
The same questions in other papers
calcium chloride dihydrate · yield · Sesamum indicum (sesame)Results agree
1 paper in the same direction as this paper
- positive
drought · physiology: photosynthesis · Sesamum indicum (sesame)Results differ
3 in the opposite direction
- negative
- negative
- negative
drought · yield · Sesamum indicum (sesame)Results differ
25 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
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24 papers more in this group
See all 28 papers →application · yield · Sesamum indicum (sesame)Positive and negative results
88 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
88 papers more in this group
See all 92 papers →application · molecular: metabolites · Sesamum indicum (sesame)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.