Paper · 1998 · Plant Production Science

Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat

Hirotake Itoh; Kihachi Ueno; Koou Yamazaki

13
claims
26
verbatim quotes
4
citations
2
research areas
✓
Open access · cc-by

Abstract

The number of grains per spikelet and the number of spikelets per spike are important factors that influence grain yield in wheat. Three wheat genotypes in four foreign groups (OA, OC, OH and OJ) differing in spike type and Japanese cultivars (cvs) were grown under various combinations of seeding densities and fertilization levels. In all groups, the spikelet number per spike and the spike length at maturity were highest at low seeding densities and high levels of fertilization. The OA group (Nepal) and Haruyutaka (Japanese cv) gave a weak response in spikelet number per spike, while the OJ group (Xinjiang Uygur, China) gave a weak response in spike length. The OC group (except for T6), the OH group (Tibet) and Japanese cvs (except for Haruyutaka) responded to treatments in both spikelet number per spike and spike length. The T6 genotype in the OC group (Nepal) gave a weak response in both spikelet number per spike and spike length. Although the OA group had the longest spikes and the OJ group had the shortest spikes, there was no difference in the duration of spike elongation between the OA group and the OJ group. Spike length appeared to be determined mainly by the rate of spike elongation and was not restricted by the dry weight of the spike during the growth phase of the spike.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spikelet number per spike and spike length at maturity were highest at low seeding densities and high fertilization levels in all wheat groups.

Organ / stage
at maturitye0
Treatment
low seeding densities and high levels of fertilizatione0
Outcome
spikelet number per spike and the spike length at maturitye0
Direction
higheste0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e0

“In all groups, the spikelet number per spike and the spike length at maturity were highest at low seeding densities and high levels of fertilization”

✓ located verbatim in the source · abstract, characters 334–482 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The OA group (Nepal) gave a weak response in spikelet number per spike.

Material
OA group (Nepal)e1
Outcome
spikelet number per spikee1
Direction
weak responsee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The OA group (Nepal) and Haruyutaka (Japanese cv) gave a weak response in spikelet number per spike”

✓ located verbatim in the source · abstract, characters 484–583 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Haruyutaka (Japanese cv) gave a weak response in spikelet number per spike.

Material
Haruyutaka (Japanese cv)e1
Outcome
spikelet number per spikee1
Direction
weak responsee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The OA group (Nepal) and Haruyutaka (Japanese cv) gave a weak response in spikelet number per spike”

✓ located verbatim in the source · abstract, characters 484–583 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The OJ group (Xinjiang Uygur, China) gave a weak response in spike length.

Material
OJ group (Xinjiang Uygur, China)e2
Outcome
spike lengthe2
Direction
weak responsee2
Setting
Xinjiang Uygur, Chinae2

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e2

“the OJ group (Xinjiang Uygur, China) gave a weak response in spike length”

✓ located verbatim in the source · abstract, characters 591–664 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The OC group (except for T6) responded to treatments in spikelet number per spike and spike length.

Material
OC group (except for T6)e3
Treatment
treatmentse3
Outcome
spikelet number per spike and spike lengthe3
Direction
respondede3

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e3

“The OC group (except for T6), the OH group (Tibet) and Japanese cvs (except for Haruyutaka) responded to treatments in both spikelet number per spike and spike length”

✓ located verbatim in the source · abstract, characters 666–832 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The OH group (Tibet) responded to treatments in spikelet number per spike and spike length.

Material
OH group (Tibet)e3
Treatment
treatmentse3
Outcome
spikelet number per spike and spike lengthe3
Direction
respondede3

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e3

“The OC group (except for T6), the OH group (Tibet) and Japanese cvs (except for Haruyutaka) responded to treatments in both spikelet number per spike and spike length”

✓ located verbatim in the source · abstract, characters 666–832 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Japanese cultivars except Haruyutaka responded to treatments in spikelet number per spike and spike length.

Material
Japanese cvs (except for Haruyutaka)e3
Treatment
treatmentse3
Outcome
spikelet number per spike and spike lengthe3
Direction
respondede3

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e3

“The OC group (except for T6), the OH group (Tibet) and Japanese cvs (except for Haruyutaka) responded to treatments in both spikelet number per spike and spike length”

✓ located verbatim in the source · abstract, characters 666–832 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The T6 genotype gave a weak response in both spikelet number per spike and spike length.

Material
T6 genotypee4
Outcome
spikelet number per spike and spike lengthe4
Direction
weak responsee4

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e4

“The T6 genotype in the OC group (Nepal) gave a weak response in both spikelet number per spike and spike length”

✓ located verbatim in the source · abstract, characters 834–945 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The OA group had the longest spikes among the groups.

Material
OA groupe5
Outcome
spikese5
Direction
longeste5

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e5

“Although the OA group had the longest spikes and the OJ group had the shortest spikes”

✓ located verbatim in the source · abstract, characters 947–1032 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The OJ group had the shortest spikes among the groups.

Material
OJ groupe5
Outcome
spikese5
Direction
shorteste5

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e5

“Although the OA group had the longest spikes and the OJ group had the shortest spikes”

✓ located verbatim in the source · abstract, characters 947–1032 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

The duration of spike elongation did not differ between the OA and OJ groups.

Material
OA groupe5
Outcome
duration of spike elongatione5
Direction
no differencee5
Comparator
OJ groupe5

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e5

“there was no difference in the duration of spike elongation between the OA group and the OJ group”

✓ located verbatim in the source · abstract, characters 1034–1131 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Spike length appears to be determined mainly by the rate of spike elongation.

Outcome
spike lengthe6
Qualifier
rate of spike elongatione6

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e6

“Spike length appeared to be determined mainly by the rate of spike elongation and was not restricted by the dry weight of the spike during the growth phase of the spike”

✓ located verbatim in the source · abstract, characters 1133–1301 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Spike length was not restricted by the dry weight of the spike during the growth phase.

Outcome
spike lengthe6
Qualifier
not restricted by the dry weight of the spike during the growth phasee6

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Effect of the Interaction between Cultural Condition and Genotype on Spike Morphogenesis in Spring Wheat”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e6

“Spike length appeared to be determined mainly by the rate of spike elongation and was not restricted by the dry weight of the spike during the growth phase of the spike”

✓ located verbatim in the source · abstract, characters 1133–1301 · show in text ↑

density · yield · Triticum aestivum (wheat)Positive and negative results

498 papers: 376 positive, 122 negative or no effect

375 papers in the same direction as this paper · 115 in the opposite direction · 7 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

494 papers more in this group

See all 498 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this paper · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

3,434 papers more in this group

See all 3,438 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.