Abstract
Traits that rapidly respond to stress in important agricultural crops have the potential to provide growers with actionable feedback. Traits that respond to water-restriction could inform irrigation systems by identifying crop water status and requirements in real-time. This would be particularly useful for potato, which is extremely susceptible to drought. We conducted two pot experiments and one field experiment to evaluate the utility of two traits, canopy temperature and leaf greenness, for informing irrigation management in potatoes. We also evaluated the efficacy of Phenospex PlantEye F500 sensors for the remote sensing of leaf greenness. We found that canopy temperatures of the cvs. Maris Piper (Spring Pot Experiment, + 0.8 °C; Autumn Pot Experiment, + 5.3 °C) and Désirée (Autumn Pot Experiment, + 2.5 °C) increased with water-restriction and that the canopy temperatures of Maris Piper returned to its baseline within three days after the resumption of well-watered conditions. We also found that these responses varied between cultivars, with predictable outcomes based on reported and corroborated drought tolerance ratings. Leaf greenness was not affected by water restriction in the Spring pot experiment but had a significant interaction with sampling date and water restriction in the Autumn pot experiment. However, leaf greenness measurements from the Phenospex PlantEye F500 were significantly correlated with SPAD values, suggesting this tool might be useful in the screening for drought-tolerant cultivars in the future. • Potato canopy temperature and greenness under water-restriction were investigated. • Canopy temperatures reliably increased across cultivars; greenness did not respond. • Cultivar responses to water-restriction varied with drought tolerance ratings. • Post-drought canopy temperatures returned to baseline in potted Maris Piper. • Canopy temperature exclusively may be useful for irrigation scheduling in potato.
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Claims 9
Claim · model-written summary
Maris Piper canopy temperature rose 0.8 °C with water restriction in the spring pot experiment.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Maris Pipere0
- Treatment
- water-restrictione0
- Outcome
- canopy temperaturese0
- Direction
- increasede0
- Value
- + 0.8 °Ce0
- Setting
- Spring Pot Experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“canopy temperatures of the cvs. Maris Piper (Spring Pot Experiment, + 0.8 °C; Autumn Pot Experiment, + 5.3 °C) and Désirée (Autumn Pot Experiment, + 2.5 °C) increased with water-restriction”
Claim · model-written summary
Maris Piper canopy temperature rose 5.3 °C with water restriction in the autumn pot experiment.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Maris Pipere0
- Treatment
- water-restrictione0
- Outcome
- canopy temperaturese0
- Direction
- increasede0
- Value
- + 5.3 °Ce0
- Setting
- Autumn Pot Experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“canopy temperatures of the cvs. Maris Piper (Spring Pot Experiment, + 0.8 °C; Autumn Pot Experiment, + 5.3 °C) and Désirée (Autumn Pot Experiment, + 2.5 °C) increased with water-restriction”
Claim · model-written summary
Désirée canopy temperature rose 2.5 °C with water restriction in the autumn pot experiment.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Désiréee0
- Treatment
- water-restrictione0
- Outcome
- canopy temperaturese0
- Direction
- increasede0
- Value
- + 2.5 °Ce0
- Setting
- Autumn Pot Experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“canopy temperatures of the cvs. Maris Piper (Spring Pot Experiment, + 0.8 °C; Autumn Pot Experiment, + 5.3 °C) and Désirée (Autumn Pot Experiment, + 2.5 °C) increased with water-restriction”
Claim · model-written summary
Maris Piper canopy temperature returned to baseline within three days after watering resumed.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Maris Pipere0
- Treatment
- resumption of well-watered conditionse0
- Outcome
- canopy temperaturese0
- Direction
- returned to its baselinee0
- Value
- three dayse0
- Comparator
- baselinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“the canopy temperatures of Maris Piper returned to its baseline within three days after the resumption of well-watered conditions”
Claim · model-written summary
Canopy temperature responses varied among cultivars in line with drought tolerance ratings.
- Taxon
- potatoSolanum tuberosumt0
- Material
- cultivarse0
- Outcome
- these responsese0
- Direction
- variede0
- Qualifier
- drought tolerance ratingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“these responses varied between cultivars, with predictable outcomes based on reported and corroborated drought tolerance ratings”
Claim · model-written summary
Water restriction did not affect leaf greenness in the spring pot experiment.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- water restrictione0
- Outcome
- Leaf greennesse0
- Direction
- not affectede0
- Setting
- Spring pot experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“Leaf greenness was not affected by water restriction in the Spring pot experiment”
Claim · model-written summary
Leaf greenness showed a significant sampling date by water restriction interaction in the autumn pot experiment.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- water restrictione0
- Outcome
- leaf greennesse0
- Qualifier
- sampling datee0
- Setting
- Autumn pot experimente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“leaf greenness was not affected by water restriction in the Spring pot experiment but had a significant interaction with sampling date and water restriction in the Autumn pot experiment”
Claim · model-written summary
PlantEye F500 greenness measurements correlated significantly with SPAD values.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- leaf greenness measurementse0
- Qualifier
- Phenospex PlantEye F500e0
- Comparator
- SPAD valuese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“leaf greenness measurements from the Phenospex PlantEye F500 were significantly correlated with SPAD values”
Claim · model-written summary
The authors suggest canopy temperature for potato irrigation scheduling.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- irrigation schedulinge0
- Qualifier
- Canopy temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato (Solanum tuberosum L.)”
e0“Canopy temperature exclusively may be useful for irrigation scheduling in potato”
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