Abstract
The scarcity of water in the Mediterranean area has frequently led to the use of saline water to irrigate ornamental plants in nurseries. Aloe vera L. Burm, Kalanchoe blossfeldiana Poelln, and Gazania splendens Lem. plants were grown in a greenhouse from the University of Almeria in containers with a mixture of sphagnum peat moss and perlite in order to evaluate the effect of salinity levels on plant growth, water-use efficiency, and nutrient leaching. The experimental design consisted of three salinity treatments, four blocks, and four plants (one plant per container) per treatment-block giving a total of 12 plants per species plus border plants placed around the perimeter of the treatment plants to maintain uniform growing conditions for treatment plants. At the end of the experiment, plant dry weight and water-use efficiency were assessed for each salinity treatment. Leachate was collected weekly and analyzed for concentrations of nitrate-nitrogen, phosphate-phosphorus, potassium, calcium, and magnesium (NO3–N, PO43–P, K+, Ca2+ and Mg2+). Increasing salinity levels of irrigation water reduced the plant dry weight in all species and affected the leachates volume and their nutrients concentrations. We suggest the use of low salinity levels in water to improve the growth and to reduce the environmental impacts of nutrient runoff.
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Claims 3
Claim · model-written summary
Increasing irrigation salinity reduced plant dry weight in all three ornamental species.
- Taxon
- Aloe vera L. Burm, Kalanchoe blossfeldiana Poelln, and Gazania splendens Lem.
Gazania splendens
Aloe vera_Kalanchoe_blossfeldiana_-_inflorescence.jpg?width=60)
Kalanchoe blossfeldianae1 - Treatment
- Increasing salinity levels of irrigation watere2
- Outcome
- plant dry weighte2
- Direction
- reducede2
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Kalanchoe_blossfeldiana_-_inflorescence.jpg?width=500)
Verbatim
e1“Aloe vera L. Burm, Kalanchoe blossfeldiana Poelln, and Gazania splendens Lem. plants were grown in a greenhouse”
e2“Increasing salinity levels of irrigation water reduced the plant dry weight in all species and affected the leachates volume and their nutrients concentrations”
Claim · model-written summary
Increasing irrigation salinity affected the leachate volume and nutrient concentrations of the three ornamental species.
- Taxon
- Aloe vera L. Burm, Kalanchoe blossfeldiana Poelln, and Gazania splendens Lem.Gazania splendensAloe veraKalanchoe blossfeldianae1
- Treatment
- Increasing salinity levels of irrigation watere2
- Outcome
- leachates volume and their nutrients concentrationse2
- Setting
- greenhousee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Aloe vera L. Burm, Kalanchoe blossfeldiana Poelln, and Gazania splendens Lem. plants were grown in a greenhouse”
e2“Increasing salinity levels of irrigation water reduced the plant dry weight in all species and affected the leachates volume and their nutrients concentrations”
Claim · model-written summary
The authors suggest using low salinity irrigation water to improve growth of ornamental plants and reduce nutrient runoff.
Verbatim
e0“to irrigate ornamental plants in nurseries”
e3“We suggest the use of low salinity levels in water to improve the growth and to reduce the environmental impacts of nutrient runoff”
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See all 10 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.