Abstract
Increasing drought, under current climate change scenarios, will reduce the sustainability of tomato cultivation in the Mediterranean region. The present study evaluates the effect of Rhizophagus intraradices inoculation on tomato plant physiology and yield in response to progressive water deficit conditions. Two commercial products (Prod1 and Prod2) containing only R. intraradices were tested at two different concentrations (1% and 5% of the substrate volume) using three methods of inoculation: (a) mixed to substrate, (b) dissolved in water, (c) spread on seedlings root blocks before transplant. The highest mycorrhization of root fragments (F%) was found with Prod2 at 1% w/w at 40 days after sowing (DAS); this product was therefore used in a second experiment to inoculate tomato plants and test their physiological response to progressive water deficit induced withholding irrigation. Phenology, plant height, stem diameter, chlorophyll content and fluorescence, whole canopy gas exchange, biomass production and partitioning and phosphorus content were investigated in inoculated and not inoculated tomato plants under well-watered and water stressed conditions. Vegetative period and plant height were shorter in inoculated than in control plants; moreover, inoculation with R. intraradices increased fruit production by enhancing chlorophyll content under water stress condition, PS2 efficiency, ETR, Fv/Fm, net photosynthetic rate and whole canopy WUE.
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Claims 7
Claim · model-written summary
Prod2 at 1% w/w gave the highest root mycorrhization at 40 DAS.
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- root fragmentse0
- Treatment
- Prod2 at 1% w/we0
- Outcome
- mycorrhization of root fragments (F%)e0
- Direction
- higheste0
- Qualifier
- 40 days after sowing (DAS)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mycorrhization of root fragments (F%) was found with Prod2 at 1% w/w at 40 days after sowing (DAS)”
t0“Tomato”
Claim · model-written summary
Inoculated tomato plants had a shorter vegetative period than controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculatede0
- Outcome
- Vegetative periode0
- Direction
- shortere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vegetative period and plant height were shorter in inoculated than in control plants”
t0“Tomato”
Claim · model-written summary
Inoculated tomato plants were shorter than controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculatede0
- Outcome
- plant heighte0
- Direction
- shortere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vegetative period and plant height were shorter in inoculated than in control plants”
t0“Tomato”
Claim · model-written summary
R. intraradices inoculation increased tomato fruit production.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculation with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- fruit productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with R. intraradices increased fruit production by enhancing chlorophyll content under water stress condition, PS2 efficiency, ETR, Fv/Fm, net photosynthetic rate and whole canopy WUE.”
t0“Tomato”
Claim · model-written summary
Inoculation enhanced chlorophyll content under water stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculation with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- chlorophyll contente0
- Direction
- enhancinge0
- Qualifier
- under water stress conditione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with R. intraradices increased fruit production by enhancing chlorophyll content under water stress condition, PS2 efficiency, ETR, Fv/Fm, net photosynthetic rate and whole canopy WUE.”
t0“Tomato”
Claim · model-written summary
Inoculation enhanced PS2 efficiency, ETR and Fv/Fm.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculation with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- PS2 efficiency, ETR, Fv/Fme0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with R. intraradices increased fruit production by enhancing chlorophyll content under water stress condition, PS2 efficiency, ETR, Fv/Fm, net photosynthetic rate and whole canopy WUE.”
t0“Tomato”
Claim · model-written summary
Inoculation enhanced net photosynthetic rate and whole canopy WUE.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculation with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- net photosynthetic rate and whole canopy WUEe0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with R. intraradices increased fruit production by enhancing chlorophyll content under water stress condition, PS2 efficiency, ETR, Fv/Fm, net photosynthetic rate and whole canopy WUE.”
t0“Tomato”
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