Abstract
Drought is a major abiotic factor that limits plant growth and productivity. Tomato is an important vegetable crop and area under production is limited by irrigation water scarcity. Four cultivars of tomato were grown as callus cultures under conditions of water stress, which was induced by addition of polyethylene glycol (6000) in the medium. The presence of PEG in the medium decreased relative growth rate and increased dry matter content in all treatments compared with the control. In all cultivars, proline levels increased in response to water stress. Also, there was decreased shoot induction in all cultivars with increase PEG treatments. The number of shoot forming in PS-10 and Peto was higher then Roma and Nora cultivars. This result can be used for in vitro screening and manipulations of tomato cultivars for improvement of drought tolerance.
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Claims 6
Claim · model-written summary
PEG decreased relative growth rate against control.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- PEGe0
- Outcome
- relative growth ratee0
- Direction
- decreasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of PEG in the medium decreased relative growth rate and increased dry matter content in all treatments compared with the control.”
t0“tomato”
Claim · model-written summary
PEG increased dry matter content against control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- PEGe0
- Outcome
- dry matter contente0
- Direction
- increasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of PEG in the medium decreased relative growth rate and increased dry matter content in all treatments compared with the control.”
t0“tomato”
Claim · model-written summary
Proline levels increased under water stress in all cultivars.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- water stresse0
- Outcome
- proline levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all cultivars, proline levels increased in response to water stress.”
t0“tomato”
Claim · model-written summary
Shoot induction decreased with increasing PEG treatments.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- PEG treatmentse0
- Outcome
- shoot inductione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was decreased shoot induction in all cultivars with increase PEG treatments.”
t0“tomato”
Claim · model-written summary
PS-10 formed more shoots than Roma and Nora.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- PS-10e0
- Outcome
- number of shoot forminge0
- Direction
- highere0
- Comparator
- Roma and Nora cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of shoot forming in PS-10 and Peto was higher then Roma and Nora cultivars.”
t0“tomato”
Claim · model-written summary
Peto formed more shoots than Roma and Nora.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Petoe0
- Outcome
- number of shoot forminge0
- Direction
- highere0
- Comparator
- Roma and Nora cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of shoot forming in PS-10 and Peto was higher then Roma and Nora cultivars.”
t0“tomato”
The same questions in other papers
drought · growth · Solanum lycopersicum (tomato)Positive and negative results
114 papers in the same direction as this paper · 27 in the opposite direction
- negative
- negative
- positive
138 papers more in this group
See all 142 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.