Abstract
Tomato plants were grown in commercial compost with the root system divided equally in two parts (PRD technique). At the end of vegetative and during generative stage of development, half of the root system was exposed to drought, while the remainder of the root system was irrigated. One PRD treatment took c.10 days and during this period the soil water content in the dry root side was reduced to 30%. After this, the treatment was reversed, allowing the previously dry compartment to be well-watered and the well-watered compartment to dry down. In control plants both compartments were watered daily to drip point throughout the experimental period. During experimental period the following measurements were done: plant height, leaf number and area, number of flower trusses, number and diameter of fruit leaf gas exchange (photosynthesis and transpiration), leaf water potential leaf apoplastic pH and water-use efficiency (WUE). Obtained results of plants height and leaf number and area showed that, as a consequence of PRD treatment, the growth of whole plants was reduced, but not fruit, although WUE was increased. These results pointed out that with PRD technique it is possible to reduce irrigation water without significant reduction effect on tomato yield.
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Claims 4
Claim · model-written summary
Partial root drying reduced whole-plant growth.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- PRD treatmente0
- Outcome
- growth of whole plantse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as a consequence of PRD treatment, the growth of whole plants was reduced”
t0“partial root drying on growth and photosynthesis of tomato”
Claim · model-written summary
Partial root drying did not reduce fruit growth.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- partial root dryingt0
- Outcome
- fruite0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but not fruit”
t0“partial root drying on growth and photosynthesis of tomato”
Claim · model-written summary
Partial root drying increased water use efficiency.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- partial root dryingt0
- Outcome
- WUEe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“although WUE was increased”
t0“partial root drying on growth and photosynthesis of tomato”
Claim · model-written summary
Authors concluded PRD can reduce irrigation without significant tomato yield loss.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- reduce irrigation water without significant reduction effect on tomato yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with PRD technique it is possible to reduce irrigation water without significant reduction effect on tomato yield”
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