Abstract
Abstract Seeds of F 2 progeny of a cross between a slow‐germinating (UCT5) and a fast‐germinating tomato line (PI120256) were evaluated for germination under non‐stress (control), cold‐stress and salt‐stress conditions, and in each treatment the most rapidly (first 5%) germinating seeds were selected, grown to maturity and self‐pollinated to produce F 3 progeny. The selected F 3 progeny from each experiment were evaluated for germination in each of the three treatments, and compared with germination rate of unselected F 3 progeny. Selection for rapid seed germination was effective under cold stress and salt stress, but not effective under non‐stress conditions. Furthermore, selection in either cold‐stress or salt‐stress treatment significantly improved progeny germination rate under both cold‐stress and salt‐stress treatments, as well as the non‐stress treatment. The results support the suggestion that the same genes contribute to rapid seed germination under cold‐, salt‐ and non‐stress conditions. In practice therefore, selection for rapid seed germination under a single‐stress environment may result in progeny with improved seed germination under a wide range of environmental conditions. Furthermore, to improve germination rate under non‐stress conditions, it may be more effective to make selections under a stress treatment.
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Claims 7
Claim · model-written summary
Selection was effective under cold stress.
- Taxon
- tomato
Solanum lycopersicumt0 - Outcome
- rapid seed germination was effective under cold stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selection for rapid seed germination was effective under cold stress”
t0“tomato”
Claim · model-written summary
Selection was effective under salt stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- rapid seed germination was effective under cold stress and salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selection for rapid seed germination was effective under cold stress and salt stress”
t0“tomato”
Claim · model-written summary
Selection was not effective under non-stress conditions.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- not effective under non‐stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not effective under non‐stress conditions”
t0“tomato”
Claim · model-written summary
Cold-stress selection significantly improved progeny germination across stress conditions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- cold‐stresse0
- Outcome
- progeny germination ratee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selection in either cold‐stress or salt‐stress treatment significantly improved progeny germination rate under both cold‐stress and salt‐stress treatments, as well as the non‐stress treatment”
t0“tomato”
Claim · model-written summary
Salt-stress selection significantly improved progeny germination across stress conditions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt‐stresse0
- Outcome
- progeny germination ratee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selection in either cold‐stress or salt‐stress treatment significantly improved progeny germination rate under both cold‐stress and salt‐stress treatments, as well as the non‐stress treatment”
t0“tomato”
Claim · model-written summary
The authors suggest the same genes support rapid germination across conditions.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- genese0
- Outcome
- rapid seed germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the same genes contribute to rapid seed germination under cold‐, salt‐ and non‐stress conditions”
t0“tomato”
Claim · model-written summary
The authors recommend selection under stress to improve germination under non-stress conditions.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- make selections under a stress treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to improve germination rate under non‐stress conditions, it may be more effective to make selections under a stress treatment”
t0“tomato”
The same questions in other papers
cold · pest · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 papers →salinity · pest · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
3 papers more in this group
See all 7 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.