Abstract
This study investigated the effects of root zone (RZ) heat priming on Eruca sativa (cv. Arugula) and Lactuca sativa (cv. Canasta) in a tropical greenhouse by exposing them to three different RZ temperatures (RZTs). For the first group, plants were grown at 25 °C-RZT for 36 days. The second group of plants was grown at 25 °C-RZT for 10 days before transferring to 38 °C-RZT for 10 days and then to 42 °C-RZT for another 16 days (primed). For the third group, plants were grown at 25 °C-RZT for 20 days and for the last 16 days were transferred to 42 °C-RZT (non-primed). RZ heat priming did not affect the leaf expansion of Arugula while the leaf expansion was slower in RZ heat primed Canasta compared to 25 °C-RZT plants. After transferring to 42 °C-RZT in the later stage, RZ heat primed Arugula had similar productivity but a larger root system with higher nutritional quality at harvest and during postharvest storage compared to those of 25 °C-RZT plants. After subjection to 42 °C-RZT, although RZ heat priming enhanced its nutritional quality, the productivity of Canasta was compromised. The results of this study suggest that it is feasible to enhance productivity and nutritional quality of leafy greens at lower production cost through RZT management.
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Claims 8
Claim · model-written summary
Priming did not affect Arugula leaf expansion relative to 25 °C plants.
- Taxon
- Eruca sativa
Eruca vesicaria subsp. sativat0 - Material
- Arugulae0
- Treatment
- RZ heat priminge0
- Outcome
- leaf expansione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eruca sativa (cv. Arugula)”
e0“RZ heat priming did not affect the leaf expansion of Arugula”
Claim · model-written summary
Priming slowed Canasta leaf expansion relative to 25 °C plants.
- Taxon
- Lactuca sativa
Lactuca sativat0 - Material
- Canastae0
- Treatment
- RZ heat primede0
- Outcome
- leaf expansione0
- Direction
- slowere0
- Comparator
- 25 °C-RZT plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf expansion was slower in RZ heat primed Canasta compared to 25 °C-RZT plants”
t0“Lactuca sativa (cv. Canasta)”
Claim · model-written summary
Primed Arugula had similar productivity to 25 °C plants after transfer to 42 °C.
- Taxon
- Eruca sativaEruca vesicaria subsp. sativat0
- Material
- Arugulae0
- Treatment
- RZ heat primede0
- Outcome
- productivitye0
- Direction
- similare0
- Comparator
- 25 °C-RZT plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eruca sativa (cv. Arugula)”
e0“RZ heat primed Arugula had similar productivity but a larger root system with higher nutritional quality at harvest and during postharvest storage compared to those of 25 °C-RZT plants”
Claim · model-written summary
Primed Arugula had a larger root system than 25 °C plants.
- Taxon
- Eruca sativaEruca vesicaria subsp. sativat0
- Material
- Arugulae0
- Treatment
- RZ heat primede0
- Outcome
- root systeme0
- Direction
- largere0
- Comparator
- 25 °C-RZT plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eruca sativa (cv. Arugula)”
e0“RZ heat primed Arugula had similar productivity but a larger root system with higher nutritional quality at harvest and during postharvest storage compared to those of 25 °C-RZT plants”
Claim · model-written summary
Primed Arugula had higher nutritional quality at harvest and during storage.
- Taxon
- Eruca sativaEruca vesicaria subsp. sativat0
- Material
- Arugulae0
- Treatment
- RZ heat primede0
- Outcome
- nutritional qualitye0
- Direction
- highere0
- Qualifier
- at harvest and during postharvest storagee0
- Comparator
- 25 °C-RZT plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eruca sativa (cv. Arugula)”
e0“RZ heat primed Arugula had similar productivity but a larger root system with higher nutritional quality at harvest and during postharvest storage compared to those of 25 °C-RZT plants”
Claim · model-written summary
Priming enhanced Canasta nutritional quality after 42 °C exposure.
- Taxon
- Lactuca sativaLactuca sativat0
- Material
- Canastae0
- Treatment
- RZ heat priminge0
- Outcome
- nutritional qualitye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Lactuca sativa (cv. Canasta)”
e0“After subjection to 42 °C-RZT, although RZ heat priming enhanced its nutritional quality, the productivity of Canasta was compromised”
Claim · model-written summary
Canasta productivity was compromised after root-zone heat priming.
- Taxon
- Lactuca sativaLactuca sativat0
- Material
- Canastae0
- Treatment
- RZ heat priminge0
- Outcome
- productivity of Canastae0
- Direction
- compromisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Lactuca sativa (cv. Canasta)”
e0“After subjection to 42 °C-RZT, although RZ heat priming enhanced its nutritional quality, the productivity of Canasta was compromised”
Claim · model-written summary
The authors suggest root-zone temperature management can improve productivity and quality at lower cost.
Verbatim
e0“it is feasible to enhance productivity and nutritional quality of leafy greens at lower production cost through RZT management”
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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.