Abstract
Experiments were designed to test the hypothesis that the internal water relations and stomatal and growth responses to water status of cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’) can be modified by prior tissue water deficits. Different levels of stress conditioning were achieved by varying irrigation frequency during a pretreatment period. Growth was limited by water stress under conditions of low and moderate irrigation frequency during the pretreatment period. During the final drought period, tissue water desorption characteristics, stomatal closure thresholds, and (inferentially) turgor sensitivity were different in stress‐conditioned plants from those in plants not subjected to prior stress. Analysis of the relationships of water potential to relative water content suggested that osmotic adjustment might play a role in the reduced sensitivity of hardened plants. The altered behaviors of prestressed plants were in the right direction to explain differences observed between the responses of controlled. environment and field‐grown plants and suggest that stress‐conditioned plants are less sensitive to tissue water deficits.
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Claims 6
Claim · model-written summary
Low and moderate irrigation frequency limited cotton growth during pretreatment.
- Taxon
- cotton plants
Gossypium hirsutumt0 - Treatment
- low and moderate irrigation frequencye0
- Outcome
- Growthe0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth was limited by water stress under conditions of low and moderate irrigation frequency during the pretreatment period.”
t0“cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’)”
Claim · model-written summary
Stress conditioning changed tissue water desorption characteristics during final drought.
- Taxon
- cotton plantsGossypium hirsutumt0
- Treatment
- stress‐conditioned plantse0
- Outcome
- tissue water desorption characteristicse0
- Direction
- differente0
- Qualifier
- During the final drought periode0
- Comparator
- plants not subjected to prior stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the final drought period, tissue water desorption characteristics, stomatal closure thresholds, and (inferentially) turgor sensitivity were different in stress‐conditioned plants from those in plants not subjected to prior stress.”
t0“cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’)”
Claim · model-written summary
Stress conditioning changed stomatal closure thresholds during final drought.
- Taxon
- cotton plantsGossypium hirsutumt0
- Treatment
- stress‐conditioned plantse0
- Outcome
- stomatal closure thresholdse0
- Direction
- differente0
- Comparator
- plants not subjected to prior stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the final drought period, tissue water desorption characteristics, stomatal closure thresholds, and (inferentially) turgor sensitivity were different in stress‐conditioned plants from those in plants not subjected to prior stress.”
t0“cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’)”
Claim · model-written summary
Stress conditioning inferentially changed turgor sensitivity during final drought.
- Taxon
- cotton plantsGossypium hirsutumt0
- Treatment
- stress‐conditioned plantse0
- Outcome
- turgor sensitivitye0
- Direction
- differente0
- Qualifier
- inferentiallye0
- Comparator
- plants not subjected to prior stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the final drought period, tissue water desorption characteristics, stomatal closure thresholds, and (inferentially) turgor sensitivity were different in stress‐conditioned plants from those in plants not subjected to prior stress.”
t0“cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’)”
Claim · model-written summary
Water potential relationships suggested osmotic adjustment might contribute to reduced sensitivity of hardened cotton.
- Taxon
- cotton plantsGossypium hirsutumt0
- Outcome
- reduced sensitivity of hardened plantse0
- Qualifier
- osmotic adjustment might play a rolee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of the relationships of water potential to relative water content suggested that osmotic adjustment might play a role in the reduced sensitivity of hardened plants.”
t0“cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’)”
Claim · model-written summary
The authors suggest conditioned cotton plants are less sensitive to tissue water deficits.
- Taxon
- cotton plantsGossypium hirsutumt0
- Outcome
- sensitive to tissue water deficitse0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress‐conditioned plants are less sensitive to tissue water deficits”
t0“cotton plants ( Gossypium hirsutum , ‘Acala SJ 2’)”
The same questions in other papers
irrigation · growth · Gossypium hirsutum (cotton)Positive and negative results
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