Abstract
Abstract Annual vinca (Catharanthus roseus (L.) G. Don ‘Pink Carpet'), geranium (Pelargonium x hortorum L. H. Bailey ‘Jackpot'), and marigold (Tagetes erecta L. ‘First Lady') were grown in a sphagnum peat moss and perlite medium. Plants were irrigated with solutions of different salinity by the addition of 0.0, 1.0, 2.0, 4.0, and 8.0 g/1 of a NaCl and CaCl2 mixture resulting in solution electrical conductivity (EC) values of about 1.3, 3.0, 4.5, 7.9, and 13.9 ds/m, respectively. In another experiment marigold and geranium were grown in solution culture containing the same salt mixture at 0.0, 1.0, 4.0, and 8.0 g/1 with EC values of 1.4, 3.0, 7.4, and 12.5 ds/m, respectively. All species showed some salinity tolerance up to 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culture as growth reductions were below 10% and no foliar injury occurred. Foliar injury occurred on marigold and geranium, but not annual vinca, at 4.0 and 8.0 g/1 in both growing media. On a concentration basis, recently mature leaves sampled from marigold grown in peat‐perlite contained more chloride (Cl) but less sodium (Na) than geranium and annual vinca. However results of the solution culture experiment showed that, with the exception of 1.0 g/1 treatment, geranium and marigold plants absorbed the same amount of Cl and Na when content was expressed on a mg/g dry weight basis. The low Na concentration in marigold leaves was a reflection of restricted translocation of Na from the roots to the shoots.
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Claims 11
Claim · model-written summary
annual vinca showed below 10% growth reduction and no foliar injury up to the stated salinity levels.
- Taxon
- annual vincae1
- Treatment
- salinitye0
- Outcome
- growth reductionse0
- Direction
- belowe0
- Value
- 10%e0
- Qualifier
- 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culturee0
Not reportedComparator
Verbatim
e0“All species showed some salinity tolerance up to 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culture as growth reductions were below 10% and no foliar injury occurred.”
e1“Annual vinca (Catharanthus roseus (L.) G. Don ‘Pink Carpet'), geranium (Pelargonium x hortorum L. H. Bailey ‘Jackpot'), and marigold (Tagetes erecta L. ‘First Lady') were grown in a sphagnum peat moss and perlite medium.”
Claim · model-written summary
geranium showed below 10% growth reduction and no foliar injury up to the stated salinity levels.
- Treatment
- salinitye0
- Outcome
- growth reductionse0
- Direction
- belowe0
- Value
- 10%e0
- Qualifier
- 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culturee0
GeraniumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All species showed some salinity tolerance up to 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culture as growth reductions were below 10% and no foliar injury occurred.”
e1“Annual vinca (Catharanthus roseus (L.) G. Don ‘Pink Carpet'), geranium (Pelargonium x hortorum L. H. Bailey ‘Jackpot'), and marigold (Tagetes erecta L. ‘First Lady') were grown in a sphagnum peat moss and perlite medium.”
Claim · model-written summary
marigold showed below 10% growth reduction and no foliar injury up to the stated salinity levels.
- Taxon
- marigolde1
- Treatment
- salinitye0
- Outcome
- growth reductionse0
- Direction
- belowe0
- Value
- 10%e0
- Qualifier
- 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culturee0
Not reportedComparator
Verbatim
e0“All species showed some salinity tolerance up to 2.0 g/1 in peat‐perlite and 1.0 g/1 in solution culture as growth reductions were below 10% and no foliar injury occurred.”
e1“Annual vinca (Catharanthus roseus (L.) G. Don ‘Pink Carpet'), geranium (Pelargonium x hortorum L. H. Bailey ‘Jackpot'), and marigold (Tagetes erecta L. ‘First Lady') were grown in a sphagnum peat moss and perlite medium.”
Claim · model-written summary
annual vincahad no foliar injury at 4.0 and 8.0 g/1.
Not reportedDirection
Verbatim
e0“Foliar injury occurred on marigold and geranium, but not annual vinca, at 4.0 and 8.0 g/1 in both growing media.”
Claim · model-written summary
geranium had foliar injury at 4.0 and 8.0 g/1.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar injury occurred on marigold and geranium, but not annual vinca, at 4.0 and 8.0 g/1 in both growing media.”
Claim · model-written summary
marigold had foliar injury at 4.0 and 8.0 g/1.
Not reportedDirection
Verbatim
e0“Foliar injury occurred on marigold and geranium, but not annual vinca, at 4.0 and 8.0 g/1 in both growing media.”
Claim · model-written summary
Marigold leaves contained more chloride (Cl) than geranium and annual vinca leaves in peat-perlite.
Verbatim
e0“On a concentration basis, recently mature leaves sampled from marigold grown in peat‐perlite contained more chloride (Cl) but less sodium (Na) than geranium and annual vinca.”
Claim · model-written summary
Marigold leaves contained less sodium (Na) than geranium and annual vinca leaves in peat-perlite.
Verbatim
e0“On a concentration basis, recently mature leaves sampled from marigold grown in peat‐perlite contained more chloride (Cl) but less sodium (Na) than geranium and annual vinca.”
Claim · model-written summary
geranium absorbed the same amounts of chlorine and sodium as the other species in solution culture, except at 1.0 g/1.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“geranium and marigold plants absorbed the same amount of Cl and Na when content was expressed on a mg/g dry weight basis”
Claim · model-written summary
marigold absorbed the same amounts of chlorine and sodium as the other species in solution culture, except at 1.0 g/1.
Verbatim
e0“geranium and marigold plants absorbed the same amount of Cl and Na when content was expressed on a mg/g dry weight basis”
Claim · model-written summary
Restricted root-to-shoot sodium translocation explained low sodium concentration in marigold leaves.
Verbatim
e0“The low Na concentration in marigold leaves was a reflection of restricted translocation of Na from the roots to the shoots.”
The same questions in other papers
salinity · growth · Tagetes (marigolds)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →salinity · growth · GeraniumResults agree
1 paper in the same direction as this paper
- positive
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.