Claim · model-written summary
Weight and number of blossom-end rot fruit were lower with irrigation at 10 kPa than at 25 kPa.
- Taxon
- tomatoes
Solanum lycopersicume1 - Treatment
- irrigation at 10 kPae2
- Outcome
- Weight and number of BER fruite2
- Direction
- lowere2
- Comparator
- at 25 kPae2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“`Equinox' tomatoes ( Lycopersicon esculentum Mill.) were grown during the springs of 2001 and 2002 with black polyethylene-mulch and drip irrigation on an Arredondo fine sand in Gainesville, Fla.”
e2“Weight and number of BER fruit were lower with irrigation at 10 kPa than at 25 kPa”
Title
M.D. Taylor; S.J. Locascio; M.R. Alligood HortScience 2004. doi:10.21273/hortsci.39.5.1110
Other claims from this paper (16)
- Intervention effect In 2001, total marketable yields were higher with Ca(NO3)2 or CaCl2 than with Ca thiosulfate.
- Intervention effect In 2001, total marketable yields were higher at 10 kPa irrigation than at 25 kPa.
- Intervention effect Number and weight of blossom-end rot fruit were lower with Ca(NO3)2 and reduced K than with no added Ca and CaSO4.
- Intervention effect Leaf and fruit Ca concentrations were generally higher with Ca(NO3)2 than with all other nutritional treatments.
- Intervention effect Reducing NH4+-N in favour of NO3- supply and adding supplemental Ca reduced the incidence of blossom-end rot.
- Intervention effect The same treatments increased leaf and fruit Ca concentrations.
- Intervention effect In 2002, marketable yields were higher with CaSO4 than with CaCl2 and reduced K.
- Intervention effect Leaf and fruit Ca concentrations were generally higher at 10 kPa irrigation than at 25 kPa.
- Intervention effect In 2002, leaf and fruit Ca concentrations were higher or similar with Ca(NO3)2 than with all other nutritional treatments.
- Association Fruit Ca concentrations were lower in the 2001 season than in the 2002 season.
- Association Blossom-end rot was 5 times higher in the 2001 season than in the 2002 season.
- Mechanism Blossom-end rot is a symptom of calcium deficiency.
- Mechanism Calcium deficiency was aggravated by high rainfall and low evapotranspiration.
- Mechanism Higher transpiration and temperature increased water uptake and hence calcium uptake.
- Observation In both seasons, fruit calcium concentration was lowest at the blossom end and highest at the stem end.
- Observation Interactions between year and treatment were significant.