Abstract
Cadmium or zinc solutions were applied to the foliage or roots of lettuce (Lactuca saliva L. cv. Grand Rapids) and cress (Lepidium sativum L. cv. Fine Curled) at concentrations of 100 parts per million (ppm) every 4th day for several weeks. Four weeks after sowing, plants were fumigated once with 30-35 parts per hundred million (pphm) ozone, for 6 h. Cress plants that had received soil application of cadmium showed markedly increased ozone-induced phytotoxicity in terms of visible leaf damage and pigment degradation; in lettuce, only pigment degradation was evident based on chlorophyll analysis. Soil application of zinc showed less ozone-induced phytotoxicity on cress and no pigment degradation in lettuce. Compared with soil application, foliar application of zinc or cadmium produced less effects on ozone phytotoxicity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Soil application of cadmium markedly increased ozone-induced phytotoxicity in cress.
- Taxon
- cresse0
- Treatment
- soil application of cadmiume0
- Outcome
- ozone-induced phytotoxicitye0
- Direction
- markedly increasede0
Not reportedComparator
Verbatim
e0“Cress plants that had received soil application of cadmium showed markedly increased ozone-induced phytotoxicity in terms of visible leaf damage and pigment degradation”
Claim · model-written summary
In lettuce, only pigment degradation was evident after ozone exposure following cadmium treatment.
- Taxon
- lettuce
Lactuca sativae1 - Outcome
- pigment degradatione1
- Qualifier
- based on chlorophyll analysise1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“in lettuce, only pigment degradation was evident based on chlorophyll analysis”
Claim · model-written summary
Soil application of zinc gave less ozone-induced phytotoxicity on cress.
Not reportedComparator
Verbatim
e2“Soil application of zinc showed less ozone-induced phytotoxicity on cress and no pigment degradation in lettuce”
Claim · model-written summary
Soil application of zinc gave no pigment degradation in lettuce.
- Taxon
- lettuceLactuca sativae2
- Treatment
- Soil application of zince2
- Outcome
- pigment degradatione2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Soil application of zinc showed less ozone-induced phytotoxicity on cress and no pigment degradation in lettuce”
Claim · model-written summary
Foliar application of zinc or cadmium gave less ozone phytotoxicity than soil application.
Verbatim
e3“Compared with soil application, foliar application of zinc or cadmium produced less effects on ozone phytotoxicity”
t0“in cress and lettuce”
The same questions in other papers
zinc atom · physiology: pigments · Lactuca sativa (garden lettuce)Results differ
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →application · physiology: pigments · Lactuca sativa (garden lettuce)Results agree
18 papers in the same direction as this paper
- positive
- positive
- positive
15 papers more in this group
See all 19 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.