Claim · model-written summary
The 0% nutrient treatment caused TPLA expansion to differ from the control within 48 hours.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- 0% treatmente5
- Outcome
- TPLA expansione5
- Direction
- differente5
- Value
- 48 hourse5
- Comparator
- controle4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The rate of change of top projected leaf area (TPLA) of lettuce ( Lactuca sativa L.) seedlings was determined with machine vision technology”
e4“The nutrient stress treatments were 0%, 50%, 150% of the control (100%)”
e5“However, the 0% treatment caused different TPLA expansion within 48 hours and required a recovery period of 3 or 4 days after being returned to normal EC levels before again attaining prestressed growth rates”
Title
Determining Nutrient Stress in Lettuce Plants with Machine Vision Technology
G.A. Giacomelli; P.P. Ling; Jaco Kole HortTechnology 1998. doi:10.21273/horttech.8.3.361
Other claims from this paper (3)
- Method / resource Machine vision detected differences in TPLA between control and nutrient-stressed lettuce seedlings within 48 hours of imposed stress.
- Intervention effect Lettuce seedlings under 50% and 150% nutrient treatments showed no TPLA difference from the control.
- Observation After the 0% nutrient treatment, lettuce needed a recovery period of 3 or 4 days before regaining prestressed growth rates.