Abstract
Abstract Six potato genotypes including ‘Desiree’ and five breeding clones (2/14, 95C, 125B, 3589, 4056) were grown in the field under well‐watered and stress conditions. The stress response of leaf tissue was assessed 8 and 12 weeks after plant emergence (WAE) by measuring canopy temperature and chlorophyll α fluorescence induction kinetics in detached leaves. Under drought‐stress conditions, chlorophyll α fluorescence dropped in clones 2/14 and 4056, remained constant in 95C and 125B and increased in clone 3589. The canopy temperature exhibited little difference between drought and irrigated treatments in clones 95C and 125B, and significant effects in the other genotypes. This performance was interpreted in terms of tolerance to drought stress, and the potential use of canopy temperature and chlorophyll fluorescence as tools for drought screening of potato germplasm and segregant generations is discussed. The physiological properties of 95C and 125B highlighted by this study need further investigation and, if confirmed, they could be recombined with other useful agronomic characters by crossing in a breeding programme.
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Claims 6
Claim · model-written summary
Under drought stress, chlorophyll fluorescence dropped in clones 2/14 and 4056 relative to well-watered plants.
- Taxon
- potato
Solanum tuberosume0 - Material
- clones 2/14 and 4056e1
- Treatment
- drought‐stress conditionse1
- Outcome
- chlorophyll α fluorescencee1
- Direction
- droppede1
- Comparator
- well‐waterede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six potato genotypes including ‘Desiree’ and five breeding clones”
e1“Under drought‐stress conditions, chlorophyll α fluorescence dropped in clones 2/14 and 4056, remained constant in 95C and 125B and increased in clone 3589”
e2“grown in the field under well‐watered and stress conditions”
Claim · model-written summary
Under drought stress, chlorophyll fluorescence remained constant in clones 95C and 125B relative to well-watered plants.
- Taxon
- potatoSolanum tuberosume0
- Material
- 95C and 125Be1
- Treatment
- drought‐stress conditionse1
- Outcome
- chlorophyll α fluorescencee1
- Direction
- remained constante1
- Comparator
- well‐waterede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six potato genotypes including ‘Desiree’ and five breeding clones”
e1“Under drought‐stress conditions, chlorophyll α fluorescence dropped in clones 2/14 and 4056, remained constant in 95C and 125B and increased in clone 3589”
e2“grown in the field under well‐watered and stress conditions”
Claim · model-written summary
Under drought stress, chlorophyll fluorescence increased in clone 3589 relative to well-watered plants.
- Taxon
- potatoSolanum tuberosume0
- Material
- clone 3589e1
- Treatment
- drought‐stress conditionse1
- Outcome
- chlorophyll α fluorescencee1
- Direction
- increasede1
- Comparator
- well‐waterede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six potato genotypes including ‘Desiree’ and five breeding clones”
e1“Under drought‐stress conditions, chlorophyll α fluorescence dropped in clones 2/14 and 4056, remained constant in 95C and 125B and increased in clone 3589”
e2“grown in the field under well‐watered and stress conditions”
Claim · model-written summary
Canopy temperature of clones 95C and 125B showed little difference between drought and irrigated treatments.
- Taxon
- potatoSolanum tuberosume0
- Material
- 95C and 125Be3
- Treatment
- droughte3
- Outcome
- canopy temperaturee3
- Direction
- little differencee3
- Comparator
- irrigatede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six potato genotypes including ‘Desiree’ and five breeding clones”
e3“The canopy temperature exhibited little difference between drought and irrigated treatments in clones 95C and 125B, and significant effects in the other genotypes”
Claim · model-written summary
Canopy temperature showed significant drought effects in the other potato genotypes.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- droughte3
- Outcome
- canopy temperaturee3
- Comparator
- irrigatede3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six potato genotypes including ‘Desiree’ and five breeding clones”
e3“The canopy temperature exhibited little difference between drought and irrigated treatments in clones 95C and 125B, and significant effects in the other genotypes”
Claim · model-written summary
Clones 95C and 125B could be recombined with other useful agronomic characters by crossing in a breeding programme.
- Taxon
- potatoSolanum tuberosume0
- Material
- 95C and 125Be1
- Outcome
- recombined with other useful agronomic characters by crossinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six potato genotypes including ‘Desiree’ and five breeding clones”
e1“The physiological properties of 95C and 125B highlighted by this study need further investigation and, if confirmed, they could be recombined with other useful agronomic characters by crossing in a breeding programme”
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See all 5 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.