Abstract
Saline soil and water present significant agricultural challenges, particularly in arid and semi-arid regions like Iran. Around 15 % of Iran's land is categorized as saline. Salt stress disrupts various physiological processes in plants, leading to reduced crop yields. Considering the demand for food and the limitation of cultivated areas is rising, the cultivation of salt-resistant crops is gaining attention. This study was conducted to examine the morpho-physiological responses tolerance of a native cultivar of okra (Abelmoschus esculentus L. cv. White Ahvazi) under conditions of salinity stress. Understanding how this native cultivar responds to salinity stress is crucial for increasing its productivity. The okra seedlings were subjected to seven different levels of electrical conductivity (EC) (1.7 as control, 4.4, 6.2, 8.5, 10.6, 12.5, 14.4, and 15.8 mS/cm) after the appearance of their first true leaves by dissolving NaCl salt in Hoagland's nutrient solution. The results showed that morphological traits in the treated samples were not significantly different from the non-treated samples until EC reached a value of 10.6 mS/cm. The increases in EC from 1.7 to 10.6 mS/cm resulted in a significant rise in the antioxidant capacity and content of biochemical constituents. While salinity stress from EC 12.5 mS/cm onwards caused significant induction of hydrogen peroxide free radicals and peroxidation of membrane lipids. The yield was also significantly reduced at ECs of 12.5, 14.4, and 15.8 mS/cm, which were 31.1, 40.6, and 59.6 % less than control plants, respectively. Increasing salinity stress resulted in a remarkable reduction of photosynthetic pigments in plants as compared to the non-treated plants. Generally, it can be concluded that the White Ahvazi cultivar of okra commonly cultivated in Iran had a moderate tolerance to EC with a threshold of 10.6 mS/cm. Thus, this study can contribute towards enhancing food production in regions facing challenges related to salinity.
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Claims 9
Claim · model-written summary
Morphological traits did not differ significantly from untreated plants through EC 10.6 mS/cm.
- Taxon
- okra
.jpg?width=60)
Abelmoschus esculentust0 - Material
- White Ahvazit1
- Treatment
- treated samplese0
- Outcome
- morphological traitse0
- Direction
- not significantly differente0
- Qualifier
- until EC reached a value of 10.6 mS/cme0
- Comparator
- non-treated samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“morphological traits in the treated samples were not significantly different from the non-treated samples until EC reached a value of 10.6 mS/cm”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Antioxidant capacity and biochemical constituent content rose significantly as EC increased from 1.7 to 10.6 mS/cm.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- increases in EC from 1.7 to 10.6 mS/cme0
- Outcome
- antioxidant capacity and content of biochemical constituentse0
- Direction
- risee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increases in EC from 1.7 to 10.6 mS/cm resulted in a significant rise in the antioxidant capacity and content of biochemical constituents”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Salinity at EC 12.5 mS/cm and above significantly induced hydrogen peroxide free radicals.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- salinity stress from EC 12.5 mS/cm onwardse0
- Outcome
- hydrogen peroxide free radicalse0
- Direction
- inductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress from EC 12.5 mS/cm onwards caused significant induction of hydrogen peroxide free radicals and peroxidation of membrane lipids”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Salinity at EC 12.5 mS/cm and above significantly induced membrane lipid peroxidation.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- salinity stress from EC 12.5 mS/cm onwardse0
- Outcome
- peroxidation of membrane lipidse0
- Direction
- inductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress from EC 12.5 mS/cm onwards caused significant induction of hydrogen peroxide free radicals and peroxidation of membrane lipids”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Yield at EC 12.5 mS/cm was 31.1% below control.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- 12.5e0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 31.1e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield was also significantly reduced at ECs of 12.5, 14.4, and 15.8 mS/cm, which were 31.1, 40.6, and 59.6 % less than control plants, respectively”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Yield at EC 14.4 mS/cm was 40.6% below control.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- 14.4e0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 40.6e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield was also significantly reduced at ECs of 12.5, 14.4, and 15.8 mS/cm, which were 31.1, 40.6, and 59.6 % less than control plants, respectively”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Yield at EC 15.8 mS/cm was 59.6% below control.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- 15.8e0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 59.6 %e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield was also significantly reduced at ECs of 12.5, 14.4, and 15.8 mS/cm, which were 31.1, 40.6, and 59.6 % less than control plants, respectively”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
Increasing salinity reduced photosynthetic pigments relative to untreated plants.
- Taxon
- okraAbelmoschus esculentust0
- Material
- White Ahvazit1
- Treatment
- Increasing salinity stresse0
- Outcome
- photosynthetic pigmentse0
- Direction
- reductione0
- Comparator
- non-treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing salinity stress resulted in a remarkable reduction of photosynthetic pigments in plants as compared to the non-treated plants”
t0“okra (Abelmoschus esculentus)”
t1“White Ahvazi cultivar of okra”
Claim · model-written summary
The authors conclude White Ahvazi okra has moderate salinity tolerance through EC 10.6 mS/cm.
- Taxon
- okraAbelmoschus esculentuse0
- Material
- White Ahvazie0
- Outcome
- moderate tolerance to ECe0
- Value
- 10.6 mS/cme0
- Setting
- Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the White Ahvazi cultivar of okra commonly cultivated in Iran had a moderate tolerance to EC with a threshold of 10.6 mS/cm”
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See all 7 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.