Paper · 1965 · Agronomy Journal

Effect of Nitrogen, Potassium, and Plant Age on Certain Nitrogenous Constituents and Malate Content of Orchardgrass (Dactylis glomerata L.)1

George A. Cummings; Merle R. Teel

4
claims
8
verbatim quotes
12
citations
1
research areas
—
Not open access

Abstract

Synopsis Malate, true protein nitrogen, free amino nitrogen, and nonprotein nitrogen other than free amino nitrogen were positively correlated with nitrogen supply with both 4‐ and 6‐week‐old orchardgrass leaves. The degree of association varied with plant age and potassium content. Nonprotein nitrogen compounds and malate were negatively correlated with potassium. True protein was positively correlated with the potassium content.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 4

Associationobservedoriginal resultmeasured

Claim · model-written summary

Malate, true protein nitrogen, free amino nitrogen and other nonprotein nitrogen in orchardgrass leaves correlated positively with nitrogen supply.

Taxon
OrchardgrassDactylis glomeratat0
Organ / stage
4‐ and 6‐week‐old orchardgrass leavese0
Treatment
nitrogen supplye0
Outcome
Malate, true protein nitrogen, free amino nitrogen, and nonprotein nitrogen other than free amino nitrogene0
Direction
positively correlatede0

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

Dactylis glomerata
Dactylis glomerata · TaxonW. Bulach · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Malate, true protein nitrogen, free amino nitrogen, and nonprotein nitrogen other than free amino nitrogen were positively correlated with nitrogen supply with both 4‐ and 6‐week‐old orchardgrass leaves.”

✓ located verbatim in the source · abstract, characters 9–212 · show in text ↑
t0

“Orchardgrass”

✓ located verbatim in the source · title, characters 103–115 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The strength of these associations varied by age and potassium content.

Taxon
OrchardgrassDactylis glomeratat0
Organ / stage
plant agee0
Compound
potassiume0
Outcome
degree of associatione0

Not reportedDirection

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

Dactylis glomerata
Dactylis glomerata · TaxonW. Bulach · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The degree of association varied with plant age and potassium content.”

✓ located verbatim in the source · abstract, characters 213–283 · show in text ↑
t0

“Orchardgrass”

✓ located verbatim in the source · title, characters 103–115 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Nonprotein nitrogen compounds and malate correlated negatively with potassium.

Taxon
OrchardgrassDactylis glomeratat0
Compound
potassiume0
Outcome
Nonprotein nitrogen compounds and malatee0
Direction
negatively correlatede0

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

Dactylis glomerata
Dactylis glomerata · TaxonW. Bulach · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Nonprotein nitrogen compounds and malate were negatively correlated with potassium.”

✓ located verbatim in the source · abstract, characters 284–367 · show in text ↑
t0

“Orchardgrass”

✓ located verbatim in the source · title, characters 103–115 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

True protein correlated positively with potassium content.

Taxon
OrchardgrassDactylis glomeratat0
Compound
potassiume0
Outcome
True proteine0
Direction
positively correlatede0

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

Dactylis glomerata
Dactylis glomerata · TaxonW. Bulach · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“True protein was positively correlated with the potassium content.”

✓ located verbatim in the source · abstract, characters 368–434 · show in text ↑
t0

“Orchardgrass”

✓ located verbatim in the source · title, characters 103–115 · show in text ↑