Abstract
This study evaluated the impact of different doses of zeolite on the emergence, yield, and chemical composition of lettuce seedlings (Lactuca sativa var. capitata). To achieve this, a pot experiment was conducted using randomised design with four replications. Zeolite was mixed with the soil substrate at rates of 1%, 5%, and 10% per 1 kg of total soil mass (5 kg), corresponding to 10, 50, and 100 g·kg−1, respectively. The control treatment consisted of a light mineral soil substrate without the addition of zeolite. The study found that zeolite significantly improved lettuce seed germination and seedling emergence rate. As the proportion of zeolite in the soil increased, both the yield of edible parts (leaves) and the biomass of the roots also increased. A beneficial effect of zeolite was observed to significantly reduce cadmium and lead concentrations in leaves. Furthermore, the addition of 10 g·kg−1 of soil also led to a reduction in the nitrate content in leaves, while higher doses (50 and 100 g·kg−1 of substrate) resulted in an increased nitrate content. The application of zeolite had no effect on the levels of flavonoids, anthocyanins, or polyphenols in lettuce leaves, nor on the concentrations of primary nutrients (N, P, K, Ca, Mg, S, and Na). However, a statistically significant relationship was observed between the application of zeolite and the increase in the iron, copper and zinc content, along with the decrease in the levels of manganese, boron, and molybdenum in the edible parts of the test plant.
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Claims 9
Claim · model-written summary
Zeolite significantly improved lettuce seed germination and emergence.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- zeolitee0
- Outcome
- seed germination and seedling emergence ratee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“zeolite significantly improved lettuce seed germination and seedling emergence rate.”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
Claim · model-written summary
Increasing zeolite increased lettuce leaf yield and root biomass.
- Taxon
- lettuceLactuca sativae1
- Treatment
- zeolitee0
- Outcome
- yield of edible parts (leaves) and the biomass of the rootse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the proportion of zeolite in the soil increased, both the yield of edible parts (leaves) and the biomass of the roots also increased.”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
Claim · model-written summary
Zeolite significantly reduced cadmium and lead concentrations in lettuce leaves.
- Taxon
- lettuceLactuca sativae1
- Treatment
- zeolitee0
- Outcome
- cadmium and lead concentrations in leavese0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A beneficial effect of zeolite was observed to significantly reduce cadmium and lead concentrations in leaves.”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
Claim · model-written summary
Zeolite at 10 g per kilogram reduced nitrate content in lettuce leaves.
- Taxon
- lettuceLactuca sativae1
- Treatment
- addition of 10 g·kg−1 of soile0
- Outcome
- nitrate content in leavese0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the addition of 10 g·kg−1 of soil also led to a reduction in the nitrate content in leaves”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
Claim · model-written summary
Higher zeolite doses increased nitrate content in lettuce leaves.
- Taxon
- lettuceLactuca sativae1
- Treatment
- higher doses (50 and 100 g·kg−1 of substrate)e0
- Outcome
- nitrate contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher doses (50 and 100 g·kg−1 of substrate) resulted in an increased nitrate content.”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
Claim · model-written summary
Zeolite had no effect on lettuce leaf flavonoids, anthocyanins or polyphenols.
- Taxon
- lettuceLactuca sativae0
- Treatment
- application of zeolitee0
- Outcome
- levels of flavonoids, anthocyanins, or polyphenolse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of zeolite had no effect on the levels of flavonoids, anthocyanins, or polyphenols in lettuce leaves”
Claim · model-written summary
Zeolite had no effect on lettuce leaf primary nutrient concentrations.
- Taxon
- lettuceLactuca sativae1
- Treatment
- application of zeolitee1
- Outcome
- concentrations of primary nutrients (N, P, K, Ca, Mg, S, and Na)e0
- Direction
- no effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nor on the concentrations of primary nutrients (N, P, K, Ca, Mg, S, and Na).”
e1“The application of zeolite had no effect on the levels of flavonoids, anthocyanins, or polyphenols in lettuce leaves, nor on the concentrations of primary nutrients (N, P, K, Ca, Mg, S, and Na).”
Claim · model-written summary
Zeolite application increased iron, copper and zinc in lettuce edible parts.
- Taxon
- lettuceLactuca sativae1
- Treatment
- application of zeolitee0
- Outcome
- iron, copper and zinc contente0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a statistically significant relationship was observed between the application of zeolite and the increase in the iron, copper and zinc content, along with the decrease in the levels of manganese, boron, and molybdenum in the edible parts of the test plant.”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
Claim · model-written summary
Zeolite application decreased manganese, boron and molybdenum in lettuce edible parts.
- Taxon
- lettuceLactuca sativae1
- Treatment
- application of zeolitee0
- Outcome
- levels of manganese, boron, and molybdenume0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a statistically significant relationship was observed between the application of zeolite and the increase in the iron, copper and zinc content, along with the decrease in the levels of manganese, boron, and molybdenum in the edible parts of the test plant.”
e1“lettuce seedlings (Lactuca sativa var. capitata)”
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See all 78 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.