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“yield decrease”

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1960

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paper W2313375359 ✕

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weeds also shortened rice panicles.

Taxon: RiceOryza sativat0
Outcome: 穂長減e0
Direction: 減e0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“ついで穂長減として”
✓ located verbatim in the source · abstract, characters 632–641

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds reduced rice panicle number most strongly.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Very high weed mass increased lodging.

Taxon: RiceOryza sativat0
Outcome: 倒伏しやすくe0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“雑草量が非常に多くなると倒伏しやすくなり”
✓ located verbatim in the source · abstract, characters 645–665

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds reduced rice panicle number most strongly.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass worsened grain filling.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Very high weed mass worsened grain filling.

Taxon: RiceOryza sativat0
Outcome: 稔実もかなり悪くなるe0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“稔実もかなり悪くなる”
✓ located verbatim in the source · abstract, characters 667–677

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds reduced rice panicle number most strongly.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.

Taxon: RiceOryza sativat0
Interactor: 雑草e0weed
Outcome: 収量e0
Value: -0.95e0

Not reportedDirection

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“成熟期における雑草量 (x, 生体重g/m2) と収量 (y, 玄米重kg/a) との間に相関係数-0.95という高い相関がみられ”
✓ located verbatim in the source · abstract, characters 306–371

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds reduced rice panicle number most strongly.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weeds reduced rice panicle number most strongly.

Taxon: RiceOryza sativat0
Outcome: 穂数減e0
Direction: 減e0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“雑草害としては, 稲の形質は穂数減として大きく現われ”
✓ located verbatim in the source · abstract, characters 604–630

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.

Taxon: RiceOryza sativat0
Interactor: 雑草e0weed
Outcome: 収量e0
Value: 43.8×10-0.00046xe0

Not reportedDirection

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“灌水後20日頃の生育中期 (有効分げつ限界期) における雑草量と収量との間にも一定の関係がみられ, y=43.8×10-0.00046xという式が得られた”
✓ located verbatim in the source · abstract, characters 402–479

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation The relation between early weed mass and yield could not be resolved.
Observation Weeds reduced rice panicle number most strongly.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

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