Paper · 1986 · HortScience

Effects of Magnesium Sulfate Sprays on Growth and Elemental Concentration of Pecan Seedlings

Darrell Sparks

9
claims
18
verbatim quotes
2
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Foliar applied Mg (0.0%, 0.24%, 0.48%, or 0.96% MgSO 4 -7H 2 O) was compared to root-supplied Mg (Hoagland's solution) in pecan [ Carya illinoensis (Wan- genh.) C. Koch] seedlings. Foliar-applied Mg suppressed, but did not prevent, Mg deficiency symptoms and increased leaf concentration of Mg and seedling growth compared to plants grown without Mg. Leaf Mg and growth from foliar sprays were substantially less than for plants with root-supplied Mg. Compared to root-supplied Mg, omitting Mg increased the leaf concentration of P, K, Cu, and Zn; decreased Ca and Mg; and had no effect on N, Fe, Mn, B, and Al. The nutritional imbalances induced by Mg deficiency were alleviated by foliar-applied Mg.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar Mg suppressed, but did not prevent, Mg deficiency symptoms versus no Mg.

Treatment
Foliar-applied Mge0
Outcome
Mg deficiency symptomse0
Direction
suppressede0
Comparator
plants grown without Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar-applied Mg suppressed, but did not prevent, Mg deficiency symptoms and increased leaf concentration of Mg and seedling growth compared to plants grown without Mg.”

✓ located verbatim in the source · abstract, characters 190–359 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar Mg increased leaf Mg concentration versus no Mg.

Treatment
Foliar-applied Mge0
Outcome
leaf concentration of Mge0
Direction
increasede0
Comparator
plants grown without Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar-applied Mg suppressed, but did not prevent, Mg deficiency symptoms and increased leaf concentration of Mg and seedling growth compared to plants grown without Mg.”

✓ located verbatim in the source · abstract, characters 190–359 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar Mg increased seedling growth versus no Mg.

Treatment
Foliar-applied Mge0
Outcome
seedling growthe0
Direction
increasede0
Comparator
plants grown without Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar-applied Mg suppressed, but did not prevent, Mg deficiency symptoms and increased leaf concentration of Mg and seedling growth compared to plants grown without Mg.”

✓ located verbatim in the source · abstract, characters 190–359 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf Mg after foliar sprays was substantially less than with root-supplied Mg.

Treatment
foliar sprayse0
Outcome
Leaf Mge0
Direction
lesse0
Comparator
root-supplied Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Leaf Mg and growth from foliar sprays were substantially less than for plants with root-supplied Mg.”

✓ located verbatim in the source · abstract, characters 360–460 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Growth after foliar sprays was substantially less than with root-supplied Mg.

Treatment
foliar sprayse0
Outcome
growthe0
Direction
lesse0
Comparator
root-supplied Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Leaf Mg and growth from foliar sprays were substantially less than for plants with root-supplied Mg.”

✓ located verbatim in the source · abstract, characters 360–460 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Omitting Mg increased leaf P, K, Cu, and Zn concentrations relative to root supply.

Treatment
omitting Mge0
Outcome
leaf concentration of P, K, Cu, and Zne0
Direction
increasede0
Comparator
root-supplied Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared to root-supplied Mg, omitting Mg increased the leaf concentration of P, K, Cu, and Zn”

✓ located verbatim in the source · abstract, characters 461–555 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Omitting Mg decreased leaf Ca and Mg concentrations relative to root supply.

Treatment
omitting Mge0
Outcome
Ca and Mge0
Direction
decreasede0
Comparator
root-supplied Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared to root-supplied Mg, omitting Mg increased the leaf concentration of P, K, Cu, and Zn; decreased Ca and Mg”

✓ located verbatim in the source · abstract, characters 461–576 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Omitting Mg had no effect on leaf N, Fe, Mn, B, and Al concentrations.

Treatment
omitting Mge0
Outcome
N, Fe, Mn, B, and Ale0
Direction
no effecte0
Comparator
root-supplied Mge0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared to root-supplied Mg, omitting Mg increased the leaf concentration of P, K, Cu, and Zn; decreased Ca and Mg; and had no effect on N, Fe, Mn, B, and Al.”

✓ located verbatim in the source · abstract, characters 461–620 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar Mg alleviated nutritional imbalances induced by Mg deficiency.

Treatment
foliar-applied Mge0
Outcome
nutritional imbalancese0
Direction
alleviatede0
Comparator
Mg deficiencye0

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

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The nutritional imbalances induced by Mg deficiency were alleviated by foliar-applied Mg.”

✓ located verbatim in the source · abstract, characters 621–710 · show in text ↑
t0

“Pecan Seedlings”

✓ located verbatim in the source · title, characters 77–92 · show in text ↑

magnesium atom · nutrient: content · Carya illinoinensis (pecan)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

This paper is about lacking the nutrient, so it counts the other way round here.

  1. no effect
See all 2 papers →

application · molecular: metabolites · Carya illinoinensis (pecan)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive
See all 4 papers →

application · disease · Carya illinoinensis (pecan)Positive and negative results

10 papers: 7 positive, 3 negative or no effect

6 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. no effect

6 papers more in this group

See all 10 papers →

application · growth · Carya illinoinensis (pecan)Positive and negative results

14 papers: 11 positive, 3 negative or no effect

10 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

10 papers more in this group

See all 14 papers →

application · nutrient: content · Carya illinoinensis (pecan)Positive and negative results

15 papers: 10 positive, 5 negative or no effect

4 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
    Foliar MnSO 4 increased leaf Mn concentration curvilinearly.

    Manganese Deficiency in Pecan · 2001 · compared with 0 to 3.3 kg·ha -1 of Mn

    Opposite direction

  2. positive
  3. positive

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.