Paper · 1958 · Agronomy Journal

Long‐Time Trends in Grain Yields of Five Rice Varieties1

C. Roy Adair; E. M. Cralley; T. H. Johnston

4
claims
8
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Synopsis The average yields of Fortuna increased each 7‐year period of the 28 years. The 7‐year average yields of the 4 varieties susceptible to diseases present during the period varied according to prevalence or control of specific diseases. White tip control appears to be necessary to get a maximum response from nitrogen fertilizer in susceptible varieties. Short or long term yields may be a poor basis for predicting comparable yields of rice varieties that differ in disease reaction.

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

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Average yields of the rice variety Fortuna increased in each 7-year period over 28 years.

Material
Fortunae1
Outcome
average yieldse1
Direction
increasede1
Qualifier
each 7‐year period of the 28 yearse1

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Long‐Time Trends in Grain Yields of Five Rice Varieties”

✓ located verbatim in the source · title, characters 0–55 · show in text ↑
e1

“The average yields of Fortuna increased each 7‐year period of the 28 years”

✓ located verbatim in the source · abstract, characters 9–83 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The 7-year average yields of four disease-susceptible rice varieties varied according to prevalence or control of specific diseases.

Material
4 varieties susceptible to diseasese2
Treatment
prevalence or control of specific diseasese2
Outcome
average yieldse2

Not reportedDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Long‐Time Trends in Grain Yields of Five Rice Varieties”

✓ located verbatim in the source · title, characters 0–55 · show in text ↑
e2

“The 7‐year average yields of the 4 varieties susceptible to diseases present during the period varied according to prevalence or control of specific diseases”

✓ located verbatim in the source · abstract, characters 85–242 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

White tip control appears necessary for a maximum response to nitrogen fertilizer in susceptible rice varieties.

Material
susceptible varietiese3
Treatment
White tip controle3
Outcome
maximum response from nitrogen fertilizere3

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Long‐Time Trends in Grain Yields of Five Rice Varieties”

✓ located verbatim in the source · title, characters 0–55 · show in text ↑
e3

“White tip control appears to be necessary to get a maximum response from nitrogen fertilizer in susceptible varieties”

✓ located verbatim in the source · abstract, characters 244–361 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Short- or long-term yields may be a poor basis for predicting comparable yields of rice varieties that differ in disease reaction.

Outcome
predicting comparable yields of rice varietiese4
Qualifier
may be a poor basise4

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Long‐Time Trends in Grain Yields of Five Rice Varieties”

✓ located verbatim in the source · title, characters 0–55 · show in text ↑
e4

“Short or long term yields may be a poor basis for predicting comparable yields of rice varieties that differ in disease reaction”

✓ located verbatim in the source · abstract, characters 363–491 · show in text ↑