Abstract
ABSTRACT Salinity is a major problem in a wide pomegranate-growing area of central Iran. Effects of four levels of salinity on leaf and root chlorine (Cl), sodium (Na), and potassium (K) partitioning and shoot growth in three major commercial cultivars of pomegranate (Punica granatum), namely ‘Alak Torsh,’ ‘Malas Torsh,’ and ‘Malas Shirin,’ under climatic conditions of central Iran were investigated. Pomegranate cuttings were rooted and planted in plastic pots containing 1:1 sand:perlite medium and irrigated immediately with complete Hoagland's solution immediately. Four salinity levels of irrigation water (0, 40, 80, and 120 mM NaCl) were used. Final concentrations of NaCl were achieved after three weeks and continued for 80 d. Growth characteristics (i.e., length of the main stem, length and number of internodes, and leaf surface) were measured during the experiment. At harvest, concentrations of Na, K, and Cl in root and apical and basal leaves of the three cultivars were determined separately. In ‘Malas Torsh’ and ‘Alak Torsh’ cultivars, increasing salinity was proportional to NaCl concentration and reduced the length of stem, the length and number of the internodes, and leaf surface. There was an increase in the growth rate of the ‘Malas Shirin’ cultivar with increasing salinity up to 40 mM, but a decline in growth rate occurred at salinity levels higher than 40 mM. With increasing salinity level, the tissue concentration of Na and Cl increased while the K/Na ratio decreased. No significant differences were observed among the three cultivars in Na, Cl, and K concentrations of roots or apical or basal leaves. These results show that ‘Malas Shirin’ grew better under saline conditions compared with the ‘Malas Torsh’ and ‘Alak Torsh’ cultivars.
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Claims 9
Claim · model-written summary
Increasing salinity reduced stem and internode lengths, internode number and leaf surface in Malas Torsh.
- Taxon
- pomegranate
Punica granatume1 - Material
- Malas Torshe0
- Treatment
- increasing salinitye0
- Outcome
- length of stem, the length and number of the internodes, and leaf surfacee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In ‘Malas Torsh’ and ‘Alak Torsh’ cultivars, increasing salinity was proportional to NaCl concentration and reduced the length of stem, the length and number of the internodes, and leaf surface.”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
Increasing salinity reduced stem and internode lengths, internode number and leaf surface in Alak Torsh.
- Taxon
- pomegranatePunica granatume1
- Material
- Alak Torshe0
- Treatment
- increasing salinitye0
- Outcome
- length of stem, the length and number of the internodes, and leaf surfacee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In ‘Malas Torsh’ and ‘Alak Torsh’ cultivars, increasing salinity was proportional to NaCl concentration and reduced the length of stem, the length and number of the internodes, and leaf surface.”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
Malas Shirin growth rate rose with salinity up to 40 mM.
- Taxon
- pomegranatePunica granatume1
- Material
- Malas Shirine0
- Treatment
- increasing salinity up to 40 mMe0
- Outcome
- growth ratee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was an increase in the growth rate of the ‘Malas Shirin’ cultivar with increasing salinity up to 40 mM”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
Malas Shirin growth rate declined above 40 mM salinity.
- Taxon
- pomegranatePunica granatume1
- Material
- Malas Shirine2
- Treatment
- salinity levels higher than 40 mMe0
- Outcome
- growth ratee0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decline in growth rate occurred at salinity levels higher than 40 mM.”
e1“pomegranate (Punica granatum)”
e2“‘Malas Shirin’ cultivar”
Claim · model-written summary
Tissue sodium concentration increased with salinity.
- Taxon
- pomegranatePunica granatume1
- Treatment
- increasing salinity levele0
- Outcome
- tissue concentration of Nae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing salinity level, the tissue concentration of Na and Cl increased while the K/Na ratio decreased.”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
Tissue chlorine concentration increased with salinity.
- Taxon
- pomegranatePunica granatume1
- Treatment
- increasing salinity levele0
- Outcome
- concentration of Na and Cle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing salinity level, the tissue concentration of Na and Cl increased while the K/Na ratio decreased.”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
Tissue potassium to sodium ratio decreased with salinity.
- Taxon
- pomegranatePunica granatume1
- Treatment
- increasing salinity levele0
- Outcome
- K/Na ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing salinity level, the tissue concentration of Na and Cl increased while the K/Na ratio decreased.”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
The three cultivars did not significantly differ in root or leaf Na, Cl and K concentrations.
- Taxon
- pomegranatePunica granatume1
- Outcome
- Na, Cl, and K concentrations of roots or apical or basal leavese0
- Direction
- No significant differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant differences were observed among the three cultivars in Na, Cl, and K concentrations of roots or apical or basal leaves.”
e1“pomegranate (Punica granatum)”
Claim · model-written summary
Malas Shirin grew better under salinity than Malas Torsh and Alak Torsh.
- Taxon
- pomegranatePunica granatume1
- Material
- Malas Shirine0
- Outcome
- grew bettere0
- Direction
- bettere0
- Comparator
- Malas Torshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Malas Shirin’ grew better under saline conditions compared with the ‘Malas Torsh’ and ‘Alak Torsh’ cultivars.”
e1“pomegranate (Punica granatum)”
The same questions in other papers
salinity · growth · Punica granatum (pomegranate)Positive and negative results
4 papers in the same direction as this paper · 10 in the opposite direction
- negative
- negative
- no effect
11 papers more in this group
See all 15 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.