Abstract
Drought resistance of two drought‐resistant lines, GP12.IC 1039 and GP.20 Bagdar, and two drought‐sensitive lines, GPD11 YSS.89 and GP17.S.35, of sorghum was assessed in a pot experiment under glasshouse conditions. Twenty‐eight‐day‐old plants of these four lines were subjected to repeated drought cycles for 15 days. The drought‐resistant lines were superior to the drought‐sensitive lines in biomass production and leaf area under drought stress. The drought treatment caused a significant reduction in leaf osmotic potential in all four lines. A close relationship between drought resistance and osmotic adjustment was observed in these lines differing in drought resistance. For instance, the two drought‐resistant lines had significantly higher osmotic adjustment (0.469 and 0.496 MPa) than that of the two drought‐sensitive lines (0.428 and 0.310 MPa). By contrast, a negative relationship between drought resistance and water retention capability (determined as decrease in weight of excised leaves during 5‐hour drying period) was found in all four lines, since the two drought‐resistant strains had relatively lower water‐retention capability than the two drought‐sensitive lines. Since there was a negative relationship between water‐retention capability and osmotic adjustment, water‐retention capability cannot be used as a reliable selection criterion for identification of drought‐resistant genotypes/lines in sorghum.
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Claims 9
Claim · model-written summary
Drought resistant lines had higher biomass production than sensitive lines under drought.
- Material
- drought‐resistant linese0
- Outcome
- biomass productione0
- Direction
- superiore0
- Comparator
- drought‐sensitive linese0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The drought‐resistant lines were superior to the drought‐sensitive lines in biomass production and leaf area under drought stress”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
Drought resistant lines had higher leaf area than sensitive lines under drought.
- Material
- drought‐resistant linese0
- Outcome
- leaf areae0
- Direction
- superiore0
- Comparator
- drought‐sensitive linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The drought‐resistant lines were superior to the drought‐sensitive lines in biomass production and leaf area under drought stress”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
Drought significantly reduced leaf osmotic potential in all four lines.
- Treatment
- drought treatmente0
- Outcome
- leaf osmotic potentiale0
- Direction
- reductione0
- Qualifier
- all four linese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The drought treatment caused a significant reduction in leaf osmotic potential in all four lines”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
Drought resistance was closely related to osmotic adjustment.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A close relationship between drought resistance and osmotic adjustment was observed in these lines differing in drought resistance”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
The drought resistant lines had higher osmotic adjustment, 0.469 and 0.496 MPa.
- Material
- drought‐resistant linese0
- Outcome
- osmotic adjustmente0
- Direction
- highere0
- Value
- 0.469 and 0.496 MPae0
- Qualifier
- 0.428 and 0.310 MPae0
- Comparator
- drought‐sensitive linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the two drought‐resistant lines had significantly higher osmotic adjustment (0.469 and 0.496 MPa) than that of the two drought‐sensitive lines (0.428 and 0.310 MPa)”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
Drought resistance was negatively related to water retention capability.
- Organ / stage
- excised leavese0
- Outcome
- water retention capabilitye0
- Direction
- negativee0
- Qualifier
- drought resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a negative relationship between drought resistance and water retention capability (determined as decrease in weight of excised leaves during 5‐hour drying period) was found in all four lines”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
The drought resistant strains had lower water retention capability than sensitive lines.
- Material
- drought‐resistant strainse0
- Outcome
- water‐retention capabilitye0
- Direction
- lowere0
- Comparator
- drought‐sensitive linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the two drought‐resistant strains had relatively lower water‐retention capability than the two drought‐sensitive lines”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
Water retention capability was negatively related to osmotic adjustment.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a negative relationship between water‐retention capability and osmotic adjustment”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
Claim · model-written summary
The authors concluded water retention capability is not a reliable selection criterion for drought resistance.
- Outcome
- water‐retention capability cannot be used as a reliable selection criterione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water‐retention capability cannot be used as a reliable selection criterion for identification of drought‐resistant genotypes/lines in sorghum”
t0“Relationship between water retention capability and osmotic adjustment in sorghum (sorghum bicolor) grown under drought stress”
The same questions in other papers
drought · physiology: water · SorghumResults differ
15 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
21 papers more in this group
See all 25 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.