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“yield decrease”

254 matches

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plus 52 non-evaluative

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The wheat companion crop decreased grass vigor.

Taxon: RUSSIAN WILD RYEGRASSt0
Treatment: companion crope0
Interactor: WHEATTriticum aestivumt0other
Outcome: vigor of the grass plantse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“The companion crop did not affect the establishment of the grass, but it did decrease the vigor of the grass plants”
✓ located verbatim in the source · abstract, characters 366–481

t0
“WHEAT COMPANION CROP ON THE SEED YIELD OF RUSSIAN WILD RYEGRASS”
✓ located verbatim in the source · title, characters 12–75

Title

EFFECT OF A WHEAT COMPANION CROP ON THE SEED YIELD OF RUSSIAN WILD RYEGRASS

T. Lawrence Canadian Journal of Plant Science 1967. doi:10.4141/cjps67-101

Other claims from this paper (7)

Intervention effect The wheat companion crop did not affect grass establishment.
Intervention effect The companion crop lowered grass seed yields in the first two crop years.
Association Higher wheat density caused greater depression of grass seedling vigor.
Association Higher wheat density caused greater depression of grass production.
Association Higher companion crop density increased wheat yield.
Observation Seedling-year wheat production averaged 969 kg/ha.
Observation Wheat production did not compensate for decreased subsequent grass seed yield.

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Reduce or withhold nitrogen at leaf-number index 70 to 90.

Taxon: Lowland Ricet0
Outcome: Decrease in supplying nitrogen or no supply of nitrogene0
Value: 70 to 90e0

Verbatim

e0
“Decrease in supplying nitrogen or no supply of nitrogen during the growth stage from 70 to 90 in "leaf-number index"”
✓ located verbatim in the source · abstract, characters 1979–2095

t0
“Lowland Rice”
✓ located verbatim in the source · title, characters 105–117

Title

Analysis of Yield-Determining Process and Its Application to Yield Prediction and Culture Improvement of Lowland Rice : LXVII. Studies on the principles for maximizing yield and their demonstration (1).

Seizo MATSUSHIMA; Genshichi WADA; Takayuki TANAKA; et al. Japanese Journal of Crop Science 1963. doi:10.1626/jcs.32.48

Other claims from this paper (10)

Intervention effect Water culture produced 102 kg per are of brown rice.
Recommendation The proposed ideal plant needs enough spikelets for target yield.
Recommendation The proposed ideal plant should have short culms and panicles and many culms.
Recommendation The proposed ideal plant should have short, thick, erect upper leaves and leaf-area index near five.
Recommendation The proposed ideal plant should continue nitrogen absorption after heading.
Recommendation The proposed ideal plant should retain as many green leaves per culm as possible.
Recommendation The proposed ideal plant should head in early August to allow 20 fine days after heading.
Recommendation Use healthy seedlings to secure early tillers and nitrogen uptake.
Recommendation Top dress nitrogen after PMC meiosis or at full heading to maintain postheading uptake.
Recommendation Drain soil to exclude toxic substances and improve plant health.

Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

Late planting restricted vegetative growth and reduced photosynthesis, grain carbohydrate accumulation and final yield in the late maturing variety.

Taxon: ZeaZeat0
Treatment: late plantinge0
Outcome: decrease in yielde0
Qualifier: shorter day length restricts vegetative growth and lower temperature during ripening period degresses photosynthesis and accumulation of cabohydrate in grainse0

Verbatim

e0
“In late planting, however shorter day length restricts vegetative growth and lower temperature during ripening period degresses photosynthesis and accumulation of cabohydrate in grains, and these bring decrease in yield finally.”
✓ located verbatim in the source · abstract, characters 2227–2455

t0
“Zea”
✓ located verbatim in the source · title, characters 51–54

Title

The Effect of Different Planting Date on Growth of Zea : II. On growth and grain yield under normal spacing.

keishi URANO; Susumu SAKAGUCHI Japanese Journal of Crop Science 1965. doi:10.1626/jcs.33.450

Other claims from this paper (14)

Intervention effect Somewhat late planting gave the early maturing variety more grain yield than other planting times.
Intervention effect Earlier planting gave the late maturing variety more grain yield than late planting.
Intervention effect Earlier planting gave early maturing plants less dry matter weight than somewhat late planting throughout growth.
Intervention effect Early planting increased dry matter accumulation of the late maturing variety in early growth relative to later planting.
Intervention effect Before silking, early and later planted plants had similar increases in dry matter weight.
Intervention effect After silking, early planted plants gained dry matter weight faster than later planted plants.
Observation Nitrogen and carbohydrate content followed a pattern similar to dry matter weight across growth.
Observation The early maturing variety was insensitive to day length.
Observation The early maturing variety differentiated tassel primordia under long days after basic vegetative growth.
Intervention effect Early planting yielded less carbohydrate accumulation in grains.
Intervention effect Late planting reduced growth and yield of the early maturing variety.
Observation The late maturing variety was sensitive to day length.
Observation In the late maturing variety, tassel primordia did not differentiate until day length shortened.
Intervention effect Earlier sowing gave better grain yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Alternate drying and submergence decreased rice growth on nitrogen-deficient soils.

Taxon: RiceOryza sativat0
Treatment: alternately dry and submerged conditionse0
Outcome: growthe0
Direction: decreasee0
Comparator: Continuous Submergencet0
Setting: nitrogen‐deficient soilse0

Verbatim

e0
“With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake.”
✓ located verbatim in the source · abstract, characters 196–337

t0
“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
✓ located verbatim in the source · title, characters 10–115

Title

Effect of Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice¹

W. H. Patrick; W. A. Quirk; F. J. Peterson; et al. Agronomy Journal 1967. doi:10.2134/agronj1967.00021962005900050011x

Other claims from this paper (4)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Soil loss below 3.8 kg/ha on 1- to 3-week-old cotton plants did not reduce yield.

Taxon: cottonGossypium hirsutume0
Organ / stage: 1‐ to 3‐weekolde0
Treatment: soil loss of less than 3.8 kg/hae0
Outcome: yieldse0
Direction: did not decreasee0
Value: less than 3.8 kg/hae0

Not reportedComparator

Verbatim

e0
“A soil loss of less than 3.8 kg/ha (1.7 tons/acre) on 1‐ to 3‐weekold cotton plants did not decrease yields”
✓ located verbatim in the source · abstract, characters 332–439

Title

Windblown Soil Abrasive Injury to Cotton Plants¹

D. V. Armbrust Agronomy Journal 1968. doi:10.2134/agronj1968.00021962006000060011x

Other claims from this paper (4)

Intervention effect Greater soil abrasion decreased growth rate in young cotton plants.
Intervention effect Greater soil abrasion decreased yield in young cotton plants.
Intervention effect Greater soil abrasion delayed first bloom in young cotton plants.
Intervention effect Greater soil abrasion increased plant loss in young cotton plants.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The mature weed mass–yield relation was y = −0.008x + 48.74.

Taxon: RiceOryza sativat0
Outcome: y=-0.008x+48.74e0
Value: -0.008x+48.74e0

Verbatim

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

e0
“y=-0.008x+48.74という式が得られた”
✓ located verbatim in the source · abstract, characters 373–397

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.
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 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.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Inadequate phosphorus increased wheat gluten yield.

Taxon: wheatTriticum aestivume0
Treatment: inadequately supplied with phosphoruse0
Outcome: gluten yielde0
Direction: risee0

Not reportedComparator

Verbatim

e0
“When wheat is inadequately supplied with phosphorus a sharp rise in gluten yield and decrease in middlings content occurs”
✓ located verbatim in the source · abstract, characters 1032–1153

Title

EFFECT OF PLANT NUTRITION ON THE AMINO-ACID COMPOSITION OF WHEAT PROTEINS

Poltavskaya, I. A. Defense Technical Information Center (DTIC) 1965

Other claims from this paper (12)

Intervention effect Nitrate nutrition increased wheat tryptophan and tyrosine content.
Intervention effect Ammonia nutrition yielded higher wheat cystine content.
Observation The amino acid difference occurred in vegetative and reserve proteins.
Mechanism Nitrate nutrition increased grain tryptophan and tyrosine through a rise in middlings yield.
Observation Middlings contain more of these proteins than gluten proteins.
Intervention effect Nitrogen top dressing at earing sharply increased gluten yield.
Intervention effect Nitrogen top dressing decreased percentage amino acid content.
Observation Absolute amino acid percentage in gluten did not fall because gluten yield was high.
Intervention effect Inadequate phosphorus decreased middlings content.
Intervention effect Phosphorus deficiency reduced tryptophan content in gluten protein.
Intervention effect Phosphorus deficiency reduced total tryptophan content in wheat grain.
Recommendation The authors concluded normal phosphorus nutrition is important for wheat tryptophan synthesis.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Alternate drying and submergence decreased rice nitrogen uptake on nitrogen-deficient soils.

Taxon: RiceOryza sativat0
Treatment: alternately dry and submerged conditionse0
Outcome: nitrogen uptakee0
Direction: decreasee0
Comparator: Continuous Submergencet0
Setting: nitrogen‐deficient soilse0

Verbatim

e0
“With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake.”
✓ located verbatim in the source · abstract, characters 196–337

t0
“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
✓ located verbatim in the source · title, characters 10–115

Title

Effect of Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice¹

W. H. Patrick; W. A. Quirk; F. J. Peterson; et al. Agronomy Journal 1967. doi:10.2134/agronj1967.00021962005900050011x

Other claims from this paper (4)

Intervention effect Alternate drying and submergence decreased rice growth on nitrogen-deficient soils.
Intervention effect Alternate drying and submergence decreased rice yield on nitrogen-deficient soils.
Intervention effect Drying and reflooding increased rice yield in soils high in available nitrogen after permanent pasture.
Mechanism Drying and reflooding apparently caused soil nitrogen loss, detrimental in nitrogen-deficient soils and beneficial in former pasture soils.

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“yield decrease”

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