Abstract
The Qinghai-Tibet Plateau is known for its high altitude, low rainfall and varying temperature, and the crops in this area are susceptible to abiotic stresses induced by drought, salinity and freeze-thaw conditions that cause damages to different properties such as the permeability of biological membrane, osmotic adjustment, and antioxidant enzyme system. Barley (Hordeum vulgare L.) is an indispensable crop on the plateau and plays an important role in agricultural ecosystem as well. In this study, Beiqing 3 was used as experimental material and physiological characteristics, including soluble protein (SP) content, malondialdehyde (MDA) content, antioxidant enzyme activity and relative water content (RWC) of seedlings were examined under freeze-thaw conditions combined with drought and alkali stress. Research results indicated that under the combined stresses of salinity and drought, barley seedlings were damaged by lipid peroxidation, weakened superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities, while osmotic adjustment ability in plants cell was enhanced. We suggested that, in agricultural management, the simultaneous occurrence of two stresses, salinity and drought, should be avoided in the early stage of barley planting to reduce the physiological stress on plants.
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Claims 4
Claim · model-written summary
Combined salinity and drought damaged barley seedlings through lipid peroxidation.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Organ / stage
- seedlingse1
- Treatment
- combined stresses of salinity and droughte1
- Outcome
- barley seedlings were damaged by lipid peroxidatione1
- Direction
- damagede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Barley (Hordeum vulgare L.)”
e1“under the combined stresses of salinity and drought, barley seedlings were damaged by lipid peroxidation”
Claim · model-written summary
Combined salinity and drought weakened SOD, CAT and POD activities in barley seedlings.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- seedlingse0
- Treatment
- combined stresses of salinity and droughte1
- Outcome
- superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activitiese1
- Direction
- weakenede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley seedlings”
e1“under the combined stresses of salinity and drought, barley seedlings were damaged by lipid peroxidation, weakened superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities”
Claim · model-written summary
Combined salinity and drought enhanced osmotic adjustment in barley seedlings.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- seedlingse0
- Treatment
- combined stresses of salinity and droughte1
- Outcome
- osmotic adjustment abilitye1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley seedlings”
e1“under the combined stresses of salinity and drought, barley seedlings were damaged by lipid peroxidation, weakened superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities, while osmotic adjustment ability in plants cell was enhanced”
Claim · model-written summary
The authors recommend avoiding simultaneous salinity and drought early in barley planting.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- salinity and drought, should be avoided in the early stage of barley plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity and drought, should be avoided in the early stage of barley planting to reduce the physiological stress on plants”
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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.