Abstract
In tropical regions, high light levels can lead to increased photooxidative damage in plants. Thus, reducing solar radiation could have a substantial impact on crop performance. This study aimed to evaluate the physiological responses and metabolic profile of two tomato varieties grown in microenvironments modified with cover meshes under a high light level and a warm climate. The experiment was achieved under high solar irradiance and an unfavorably high temperature. The varieties “Moneymaker” (MM) and “Campeche 40” (C40) were grown from 45 to 130 days after sowing at four solar irradiance levels: 100% (T1), 80% (T2), 75% (T3), and 50% (T4). In both varieties, the plants grown under the lowest irradiances (T3 and T4) were the tallest, with larger leaf areas, and accumulated more aerial and root biomass. Under moderate shading (T2), plants took better advantage of the light and had the highest photochemical quenching coefficient (qP) (C40 = 0.60 and MM = 0.48) and the highest electron transport rate (ETR). However, T3 and T4 plants had the highest net assimilation rate (23.6 and 23.9 µmol m−2 s−1 in C40, and 22.7 and 22.6 µmol m−2 s−1 in MM, respectively) and the highest A/Ci coefficients. Although both tomato varieties accumulate similar metabolites, MM leaves accumulate more glucose and C40 leaves accumulate more proline and valine. Furthermore, MM leaves accumulate more glycine and GABA under high radiation, and C40 leaves accumulate more proline and valine than leaves under 50% shade (T4). We conclude that using meshes in areas with high irradiance could be an alternative to reduce abiotic stress factors in plants.
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Claims 14
Claim · model-written summary
T3 and T4 plants of both varieties were tallest and had larger leaves and more biomass.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- lowest irradiances (T3 and T4)e0
- Outcome
- tallest, with larger leaf areas, and accumulated more aerial and root biomasse0
- Direction
- talleste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both varieties, the plants grown under the lowest irradiances (T3 and T4) were the tallest, with larger leaf areas, and accumulated more aerial and root biomass”
t0“Tomato”
Claim · model-written summary
Moderate shade produced the highest photochemical quenching coefficient in C40, 0.60.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- C40e1
- Treatment
- moderate shading (T2)e0
- Outcome
- photochemical quenching coefficient (qP)e0
- Direction
- higheste0
- Value
- 0.60e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under moderate shading (T2), plants took better advantage of the light and had the highest photochemical quenching coefficient (qP) (C40 = 0.60 and MM = 0.48) and the highest electron transport rate (ETR)”
e1““Campeche 40” (C40)”
t0“Tomato”
Claim · model-written summary
Moderate shade produced the highest photochemical quenching coefficient in MM, 0.48.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- MMe1
- Treatment
- moderate shading (T2)e0
- Outcome
- photochemical quenching coefficient (qP)e0
- Direction
- higheste0
- Value
- 0.48e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under moderate shading (T2), plants took better advantage of the light and had the highest photochemical quenching coefficient (qP) (C40 = 0.60 and MM = 0.48) and the highest electron transport rate (ETR)”
e1““Moneymaker” (MM)”
t0“Tomato”
Claim · model-written summary
T2 plants had the highest electron transport rate.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- moderate shading (T2)e0
- Outcome
- electron transport rate (ETR)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under moderate shading (T2), plants took better advantage of the light and had the highest photochemical quenching coefficient (qP) (C40 = 0.60 and MM = 0.48) and the highest electron transport rate (ETR)”
t0“Tomato”
Claim · model-written summary
C40 under T3 had net assimilation rate 23.6 µmol m−2 s−1.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- C40e0
- Treatment
- T3e0
- Outcome
- net assimilation ratee0
- Direction
- higheste0
- Value
- 23.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T3 and T4 plants had the highest net assimilation rate (23.6 and 23.9 µmol m−2 s−1 in C40”
t0“Tomato”
Claim · model-written summary
C40 under T4 had net assimilation rate 23.9 µmol m−2 s−1.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- C40e0
- Treatment
- T4e0
- Outcome
- net assimilation ratee0
- Direction
- higheste0
- Value
- 23.9 µmol m−2 s−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T3 and T4 plants had the highest net assimilation rate (23.6 and 23.9 µmol m−2 s−1 in C40”
t0“Tomato”
Claim · model-written summary
MM under T3 had net assimilation rate 22.7 µmol m−2 s−1.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- MMe0
- Treatment
- T3e0
- Outcome
- net assimilation ratee0
- Direction
- higheste0
- Value
- 22.7e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T3 and T4 plants had the highest net assimilation rate (23.6 and 23.9 µmol m−2 s−1 in C40, and 22.7 and 22.6 µmol m−2 s−1 in MM, respectively)”
t0“Tomato”
Claim · model-written summary
MM under T4 had net assimilation rate 22.6 µmol m−2 s−1.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- MMe0
- Treatment
- T4e0
- Outcome
- net assimilation ratee0
- Direction
- higheste0
- Value
- 22.6 µmol m−2 s−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T3 and T4 plants had the highest net assimilation rate (23.6 and 23.9 µmol m−2 s−1 in C40, and 22.7 and 22.6 µmol m−2 s−1 in MM, respectively)”
t0“Tomato”
Claim · model-written summary
T3 and T4 plants had the highest A/Ci coefficients.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- T3 and T4e0
- Outcome
- A/Ci coefficientse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T3 and T4 plants had the highest net assimilation rate (23.6 and 23.9 µmol m−2 s−1 in C40, and 22.7 and 22.6 µmol m−2 s−1 in MM, respectively) and the highest A/Ci coefficients”
t0“Tomato”
Claim · model-written summary
MM leaves had more glucose than C40 leaves.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- MMe0
- Organ / stage
- leavese0
- Outcome
- more glucosee0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MM leaves accumulate more glucose and C40 leaves accumulate more proline and valine”
t0“Tomato”
Claim · model-written summary
C40 leaves had more proline and valine than MM leaves.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- C40e0
- Organ / stage
- leavese0
- Outcome
- more proline and valinee0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MM leaves accumulate more glucose and C40 leaves accumulate more proline and valine”
t0“Tomato”
Claim · model-written summary
MM leaves accumulated more glycine and GABA under high radiation.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- MMe0
- Treatment
- high radiatione0
- Outcome
- glycine and GABAe0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MM leaves accumulate more glycine and GABA under high radiation”
t0“Tomato”
Claim · model-written summary
C40 leaves accumulated more proline and valine under high radiation than 50% shade.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- C40e0
- Outcome
- proline and valinee0
- Direction
- moree0
- Comparator
- 50% shade (T4)e0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C40 leaves accumulate more proline and valine than leaves under 50% shade (T4)”
t0“Tomato”
Claim · model-written summary
The authors proposed mesh covers to reduce abiotic stress in high irradiance areas.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- using meshes in areas with high irradiancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using meshes in areas with high irradiance could be an alternative to reduce abiotic stress factors in plants”
t0“Tomato”
The same questions in other papers
shade · physiology: photosynthesis · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
5 papers more in this group
See all 9 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.