Paper · 1990 · Journal of Plant Nutrition

Salinity‐calcium interactions on root growth and osmotic adjustment of two corn cultivars differing in Salt Tolerance

G. R. Cramer; R. Abdel‐Basset; J. R. Seemann

8
claims
17
verbatim quotes
29
citations
1
research areas
—
Not open access

Abstract

Abstract The effects of NaCl‐salinity and supplemental CaCI2 on root elongation and osmotic adjustment were investigated for two corn (Zea mays L.) cultivars, Pioneer hybrid 3906 and Dekalb hybrid XL75. Increasing concentrations of NaCl (0 to 120 mM) progressively inhibited root elongation. Root elongation of Pioneer hybrid 3906 was more sensitive to salinity than that of Dekalb hybrid XL75. The osmolality of the growing zone of salt‐stressed roots increased with increasing salinity. High Ca2+ increased the osmolality for both cultivars. Dekalb hybrid XL75 had a greater response to Ca2+ than that of Pioneer hybrid 3906. The concentrations of soluble sugars, amino acids, proline, Na+, K+ and Ch were determined to assess which solutes were involved in osmotic adjustment. Sodium and Cl were the principal solutes involved, although minor increases in K+ and soluble sugars were also observed. We found no significant effects of salinity or Ca2+ on concentrations of proline or amino acids.

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Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing NaCl concentrations progressively inhibited root elongation.

Treatment
NaCl (0 to 120 mM)e0
Outcome
root elongatione0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Increasing concentrations of NaCl (0 to 120 mM) progressively inhibited root elongation”

✓ located verbatim in the source · abstract, characters 203–290 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Pioneer hybrid 3906 root elongation was more sensitive to salinity than Dekalb hybrid XL75.

Material
Pioneer hybrid 3906e0
Outcome
Root elongatione0
Direction
more sensitivee0
Comparator
Dekalb hybrid XL75e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Root elongation of Pioneer hybrid 3906 was more sensitive to salinity than that of Dekalb hybrid XL75”

✓ located verbatim in the source · abstract, characters 292–393 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Growing-zone osmolality of salt-stressed roots increased with salinity.

Treatment
salinitye0
Outcome
osmolality of the growing zone of salt‐stressed rootse0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The osmolality of the growing zone of salt‐stressed roots increased with increasing salinity”

✓ located verbatim in the source · abstract, characters 395–487 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

High calcium increased osmolality for both cultivars.

Treatment
High Ca2+e0
Outcome
osmolalitye0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“High Ca2+ increased the osmolality for both cultivars”

✓ located verbatim in the source · abstract, characters 489–542 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Dekalb hybrid XL75 had a greater calcium response than Pioneer hybrid 3906.

Material
Dekalb hybrid XL75e0
Outcome
response to Ca2+e0
Direction
greatere0
Comparator
Pioneer hybrid 3906e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Dekalb hybrid XL75 had a greater response to Ca2+ than that of Pioneer hybrid 3906”

✓ located verbatim in the source · abstract, characters 544–626 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sodium and chloride were the principal solutes involved in osmotic adjustment.

Outcome
Sodium and Cl were the principal solutes involvede0
Qualifier
osmotic adjustmente1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sodium and Cl were the principal solutes involved”

✓ located verbatim in the source · abstract, characters 780–829 · show in text ↑
e1

“to assess which solutes were involved in osmotic adjustment”

✓ located verbatim in the source · abstract, characters 719–778 · show in text ↑
e2

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Potassium and soluble sugars showed minor increases.

Outcome
K+ and soluble sugarse0
Direction
increasese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“minor increases in K+ and soluble sugars were also observed”

✓ located verbatim in the source · abstract, characters 840–899 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Salinity and calcium had no significant effect on proline or amino acid concentrations.

Treatment
salinity or Ca2+e0
Outcome
concentrations of proline or amino acidse0
Direction
no significant effectse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“no significant effects of salinity or Ca2+ on concentrations of proline or amino acids”

✓ located verbatim in the source · abstract, characters 910–996 · show in text ↑
e1

“two corn (Zea mays L.) cultivars”

✓ located verbatim in the source · abstract, characters 125–157 · show in text ↑

sodium chloride · growth · Zea mays (maize)Results differ

112 papers: 19 positive, 93 negative or no effect

92 papers in the same direction as this paper · 19 in the opposite direction

  1. negative
  2. negative
  3. positive

108 papers more in this group

See all 112 papers →

calcium(2+) · physiology: osmolytes · Zea mays (maize)Positive and negative results

5 papers: 2 positive, 3 negative or no effect

2 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. no effect

1 paper more in this group

See all 5 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.