Abstract
Abstract A study was undertaken to determine a) if genotypic responses for fruit set and pollen viability in tomatoes ( Lycopersicon esculentum Mill.) exposed to high temperatures are related, and b) if pollen viability at high temperature could be used to screen tomato plants for better performance in high-temperature environments. Fruit set, pollen germination, and pollen tube length varied among tomato sources exposed to 40C for 60 min, and both pollen germination ( r = 0.988***) and pollen tube length ( r = 0.815**) correlated positively with fruit set. Differentiation among tomato sources for increased pollen viability at high temperature was accelerated by increasing the temperature at which flowers were exposed from 40 to 48C. Pollen viability has a major role in determining the fruit set of tomatoes at high temperatures and can serve as a basis of screening for tomato plants that will potentially produce higher fruit yield in high-temperature environments.
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Claims 5
Claim · model-written summary
Fruit set, pollen germination and pollen tube length varied among tomato sources after heat exposure.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- 40C for 60 mine0
- Outcome
- Fruit set, pollen germination, and pollen tube lengthe0
- Direction
- variede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit set, pollen germination, and pollen tube length varied among tomato sources exposed to 40C for 60 min”
Claim · model-written summary
Pollen germination correlated positively with fruit set.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- pollen germinatione0
- Outcome
- fruit sete0
- Direction
- positivelye0
- Value
- r = 0.988***e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pollen germination ( r = 0.988***) and pollen tube length ( r = 0.815**) correlated positively with fruit set”
t0“Tomato”
Claim · model-written summary
Pollen tube length correlated positively with fruit set.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- pollen tube lengthe0
- Outcome
- fruit sete0
- Direction
- positivelye0
- Value
- r = 0.815**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pollen germination ( r = 0.988***) and pollen tube length ( r = 0.815**) correlated positively with fruit set”
t0“Tomato”
Claim · model-written summary
Exposure at 48C accelerated differentiation of tomato sources for increased pollen viability relative to 40C.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 48Ce0
- Outcome
- Differentiation among tomato sources for increased pollen viabilitye0
- Direction
- acceleratede0
- Comparator
- 40e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differentiation among tomato sources for increased pollen viability at high temperature was accelerated by increasing the temperature at which flowers were exposed from 40 to 48C”
Claim · model-written summary
Pollen viability can screen tomato plants likely to yield more fruit under heat.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- basis of screening for tomato plantse0
- Comparator
- higher fruit yielde0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pollen viability has a major role in determining the fruit set of tomatoes at high temperatures and can serve as a basis of screening for tomato plants that will potentially produce higher fruit yield in high-temperature environments”