Abstract
In order to evaluate morphological and physiological traits related to drought tolerance and to determine the best criteria for screening and identification of drought-tolerant genotypes, we grew two tolerant genotypes (MCC392, MCC877) and two sensitive genotypes (MCC68, MCC448) of chickpea under drought stress (25% field capacity) and control (100% field capacity) conditions and assessed the effect of drought stress on growth, water relations, photosynthesis, chlorophyll fluorescence and chlorophyll content in the seedling, early flowering and podding stages. Drought stress significantly decreased shoot dry weight, CO 2 assimilation rate (A), transpiration rate (E), and PSII photochemical efficiency (F v /F m ) in all genotypes. In the seedling and podding stages, PSII photochemical efficiency was higher in tolerant genotypes than in sensitive genotypes under drought stress. Water use efficiency (WUE) and CO 2 assimilation rate were also higher in tolerant than in sensitive genotypes in all investigated stages under drought stress. Our results indicated that water use efficiency, A and F v /F m can be useful markers in studies of tolerance to drought stress and in screening adapted cultivars of chickpea under drought stress.
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Claims 8
Claim · model-written summary
Drought stress significantly decreased shoot dry weight in all chickpea genotypes.
- Taxon
- Chickpea
Cicer arietinumt0 - Treatment
- Drought stresse0
- Outcome
- shoot dry weighte0
- Direction
- decreasede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly decreased shoot dry weight, CO 2 assimilation rate (A), transpiration rate (E), and PSII photochemical efficiency (F v /F m ) in all genotypes.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Drought stress significantly decreased CO 2 assimilation rate (A) in all chickpea genotypes.
- Taxon
- ChickpeaCicer arietinumt0
- Treatment
- Drought stresse0
- Outcome
- CO 2 assimilation rate (A)e0
- Direction
- decreasede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly decreased shoot dry weight, CO 2 assimilation rate (A), transpiration rate (E), and PSII photochemical efficiency (F v /F m ) in all genotypes.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Drought stress significantly decreased transpiration rate (E) in all chickpea genotypes.
- Taxon
- ChickpeaCicer arietinumt0
- Treatment
- Drought stresse0
- Outcome
- transpiration rate (E)e0
- Direction
- decreasede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly decreased shoot dry weight, CO 2 assimilation rate (A), transpiration rate (E), and PSII photochemical efficiency (F v /F m ) in all genotypes.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Drought stress significantly decreased PSII photochemical efficiency (F v /F m ) in all chickpea genotypes.
- Taxon
- ChickpeaCicer arietinumt0
- Treatment
- Drought stresse0
- Outcome
- PSII photochemical efficiency (F v /F m )e0
- Direction
- decreasede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly decreased shoot dry weight, CO 2 assimilation rate (A), transpiration rate (E), and PSII photochemical efficiency (F v /F m ) in all genotypes.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Under drought, tolerant genotypes had higher PSII efficiency than sensitive genotypes at seedling and podding stages.
- Taxon
- ChickpeaCicer arietinumt0
- Material
- tolerant genotypese0
- Organ / stage
- seedling and podding stagese0
- Outcome
- PSII photochemical efficiencye0
- Direction
- highere0
- Comparator
- sensitive genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the seedling and podding stages, PSII photochemical efficiency was higher in tolerant genotypes than in sensitive genotypes under drought stress.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Under drought, tolerant genotypes had higher water use efficiency than sensitive genotypes at all investigated stages.
- Taxon
- ChickpeaCicer arietinumt0
- Material
- tolerante0
- Outcome
- Water use efficiency (WUE)e0
- Direction
- highere0
- Comparator
- sensitive genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water use efficiency (WUE) and CO 2 assimilation rate were also higher in tolerant than in sensitive genotypes in all investigated stages under drought stress.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Under drought, tolerant genotypes had higher CO2 assimilation than sensitive genotypes at all investigated stages.
- Taxon
- ChickpeaCicer arietinumt0
- Material
- tolerante0
- Outcome
- CO 2 assimilation ratee0
- Direction
- highere0
- Comparator
- sensitive genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water use efficiency (WUE) and CO 2 assimilation rate were also higher in tolerant than in sensitive genotypes in all investigated stages under drought stress.”
t0“Chickpea (Cicer Arietinum L.) Genotypes”
e1“control (100% field capacity) conditions”
Claim · model-written summary
Water use efficiency, assimilation and PSII efficiency may be useful drought screening markers.
- Taxon
- chickpeaCicer arietinume0
- Outcome
- water use efficiency, A and F v /F me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water use efficiency, A and F v /F m can be useful markers in studies of tolerance to drought stress and in screening adapted cultivars of chickpea under drought stress.”
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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.