Search claims · PlantClaims

Intervention effect 450

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pearl millet had the greatest yield decrease under intercropping.

Taxon: Pearl milletCenchrus americanuse0
Treatment: intercroppede0
Outcome: yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Pearl millet was the cereal with the greatest decrease in yield when intercropped”
✓ located verbatim in the source · abstract, characters 1044–1125

Title

Agronomic characteristics of intercropped legume and cereal crops.

E. A. Menezes UA Campus Repository (The University of Arizona) 1988

Other claims from this paper (10)

Observation Sorghum with soybean was the most appropriate species combination in 1985.
Observation Sorghum was the best cereal competitor with legumes.
Observation Soybean was the best legume competitor with cereals.
Observation Pioneer 8493 yielded more in monocrop.
Intervention effect The other two sorghum genotypes yielded more under intercropping.
Observation All three sorghum genotypes had high land equivalent ratios, indicating an intercropping advantage.
Intervention effect Soybean genotype yields decreased drastically in intercropping.
Observation Asgrow A6520 had the highest soybean yield in intercropping.
Recommendation California IO80H40 was chosen as the most appropriate sorghum genotype for intercropping.
Recommendation Rillito was chosen as the most appropriate soybean genotype for intercropping.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early ethephon application caused less yield decrease than later application.

Taxon: cornZea mays subsp. mayst0
Treatment: Early applicatione0
Outcome: yielde0
Direction: less yield decreasee0
Comparator: later timingse0

Verbatim

e0
“Early application showed less yield decrease than later timings.”
✓ located verbatim in the source · abstract, characters 1121–1185

t0
“Corn”
✓ located verbatim in the source · title, characters 47–51

Title

Use of Ethephon as a Plant Growth Regulator in Corn Production

J. M. Gaska; E. S. Oplinger Crop Science 1988. doi:10.2135/cropsci1988.0011183x002800060024x

Other claims from this paper (10)

Intervention effect Ethephon increased yields of hybrid 3377 up to 280 g ha −1.
Intervention effect Other tested corn hybrids showed decreased yields under ethephon.
Intervention effect Hybrid 3377 yield increased 0.77 Mg ha −1 (7.6%) with 280 g ha −1 in 1985.
Intervention effect High-rate ethephon increased grain yield per ear by 3% in hybrid 3377.
Intervention effect High-rate ethephon decreased grain yield per ear by 12% in hybrid 3737.
Intervention effect High-rate ethephon decreased plant and ear height by up to 20%.
Intervention effect High-rate ethephon decreased lodging by 63% in 1986.
Intervention effect High-rate ethephon decreased harvesting time by 20% in 1986.
Recommendation Under lodging-prone conditions, the authors suggest high-rate early ethephon may preserve yield and ease harvesting.
Recommendation Without lodging, high-rate late ethephon may reduce yield in some hybrids.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Spring paclobutrazol tended to decrease early yield.

Taxon: muskmelonCucumis melot0
Treatment: paclobutrazolt0
Outcome: early yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“but tended to decrease the early yield.”
✓ located verbatim in the source · abstract, characters 561–600

t0
“Paclobutrazol—A Plant Growth Retardant for Increasing Yield and Fruit Quality in Muskmelon”
✓ located verbatim in the source · title, characters 0–90

Title

Paclobutrazol—A Plant Growth Retardant for Increasing Yield and Fruit Quality in Muskmelon

Haim Nerson; Ron Cohen; Menahem Edelstein; et al. Journal of the American Society for Horticultural Science 1989. doi:10.21273/jashs.114.5.762

Other claims from this paper (7)

Intervention effect Spring transplant drench with paclobutrazol increased total fruit yield by 15% to 20%.
Intervention effect Paclobutrazol increased fruit weight rather than fruit number.
Intervention effect Paclobutrazol generally tended to improve marketable yield, yield concentration and netting index.
Intervention effect Autumn paclobutrazol reduced early leaf yellowing but was less effective than BA.
Intervention effect Autumn paclobutrazol did not affect yield or yield components.
Intervention effect Autumn paclobutrazol significantly increased soluble solids content.
Intervention effect Autumn paclobutrazol left keeping quality unaffected.

Association 182

Show all 182 →

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Models predicted above average July heat units would decrease corn yield.

Treatment: above average heat unitse0
Outcome: yielde0
Direction: decreasee0

Not reportedTaxon

Verbatim

e0
“above average heat units would decrease yield”
✓ located verbatim in the source · abstract, characters 1433–1478

Title

Nitrogen, Climate, and Previous Crop Effect on Corn Yield and Grain N¹

M. Asghari; R. G. Hanson Agronomy Journal 1984. doi:10.2134/agronj1984.00021962007600040007x

Other claims from this paper (12)

Intervention effect N fertilizer significantly increased corn yield in three of four years after small grain.
Intervention effect N fertilization did not increase corn yield following alfalfa.
Intervention effect N fertilization significantly increased corn grain N content.
Observation Corn grain N content was higher following alfalfa.
Association One hundred percent relative yield corresponded to grain N content of 1.09 mol kg− 1.
Association June precipitation had no significant effect on corn yield.
Association Above average June heat units positively affected corn yield.
Association Models predicted above average July precipitation would increase corn yield.
Association More precipitation could offset above average July heat unit effects.
Method / resource Model predicted 114.3 mm July precipitation to reach 100% relative yield at mean heat units.
Method / resource At 114.3 mm precipitation, the predicted corn yield was 9.36 Mg ha− 1.
Method / resource The predicted N fertilizer requirement for that yield was 136 kg N ha− 1.

Associationobservedreview summarynegativemeasured

Claim · model-written summary

Weed competition can decrease alfalfa yield.

Taxon: alfalfaMedicago sativae0
Interactor: Weedse0weed
Outcome: yieldse0
Direction: decreasee0

Verbatim

e0
“Weeds compete with alfalfa for water, nutrients, light, and space. This competition can decrease yields”
✓ located verbatim in the source · abstract, characters 0–103

Title

Weed Management in Alfalfa

William W. Witt UKnowledge (University of Kentucky) 1983

Other claims from this paper (4)

Associationauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Salinity above 8 dS /m may decrease alfalfa yield by 50 %.

Taxon: alfalfaMedicago sativae0
Treatment: levelse0
Outcome: alfalfa yielde0
Direction: decreasee0
Value: 50 %e0
Qualifier: 8 dS /me0

Verbatim

e0
“8 dS /m (4091 ppm, 70 mM), levels that may decrease alfalfa yield by 50 %”
✓ located verbatim in the source · abstract, characters 526–599

Title

Breeding Strategies for Alfalfa Grown Under Saline Conditions

D. W. Johnson; S. E. Smith; A. K. Dobrenz UA Campus Repository (The University of Arizona) 1988

Other claims from this paper (3)

Association Alfalfa yields may increase slightly at very low soil salinity.
Association Moderate to high salinity may drastically reduce alfalfa yield.
Association Alfalfa yield begins to decline above a soil salinity threshold of 2 dS /m.

Observation 108

Show all 108 →

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

F4 and F5 mungbean populations showed a slight grain yield decrease.

Taxon: mungbeanVigna radiatat0
Material: F4 and FSe0
Outcome: 'grain yielde0
Direction: slight decreasee0

Verbatim

e0
“slight decrease in 'grain yield in subsequent populations of F4 and FS”
✓ located verbatim in the source · abstract, characters 923–993

t0
“mungbean”
✓ located verbatim in the source · title, characters 26–34

Title

Selection and breeding of mungbean

S. C. Quah Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) 1987

Other claims from this paper (11)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Guard cell chloroplasts showed a slow fluorescence yield decrease equivalent to the mesophyll MT transition.

Taxon: Chlorophytum comosumChlorophytum comosumt0
Outcome: slow fluorescence yield decreasee0
Direction: decreasee0

Not reportedOrgan / stage

Verbatim

e0
“They also showed a slow fluorescence yield decrease, equivalent to the MT transition in mesophyll”
✓ located verbatim in the source · abstract, characters 402–499

t0
“Chlorophytum comosum”
✓ located verbatim in the source · abstract, characters 105–125

Title

Chlorophyll a Fluorescence Transients in Mesophyll and Guard Cells

Anastasios Melis; Eduardo Zeiger PLANT PHYSIOLOGY 1982. doi:10.1104/pp.69.3.642

Other claims from this paper (4)

Observation Guard cell chloroplasts showed the OPS fluorescence transient.
Observation Guard cell chloroplast fluorescence lacked the SM transition increment seen in mesophyll chloroplasts.
Intervention effect CO(2) inhibited the MT-equivalent transition in guard cell chloroplasts.
Intervention effect The absence of CO(2) accelerated the MT-equivalent transition.

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

In other varieties, a one month yield increase was offset by a decrease in another month.

Taxon: ryegrassLoliume1
Outcome: yield decreasee0
Direction: decreasee0
Qualifier: in anothere0

Verbatim

e0
“in others they occurred in 1 month and were offset by a yield decrease in another”
✓ located verbatim in the source · abstract, characters 715–796

e1
“54 varieties of ryegrass”
✓ located verbatim in the source · abstract, characters 180–204

Title

Effects of barley yellow dwarf virus on some varieties of Italian, hybrid and perennial ryegrasses and their implication for grass breeders

P. L. CATHERALI; ANNE L. PARRY Plant Pathology 1987. doi:10.1111/j.1365-3059.1987.tb02214.x

Other claims from this paper (9)

Intervention effect BYDV produced few visible foliar symptoms under monthly defoliation.
Association Leaf tip discoloration poorly indicated yield damage after defoliation ceased.
Association Some varieties with strong discoloration were less damaged than some with little or none.
Intervention effect BYDV significantly reduced yield in some ryegrass varieties.
Intervention effect BYDV significantly increased yield in other varieties.
Observation In some varieties, BYDV induced yield gains persisted all year.
Intervention effect BYDV reduced root yield more than shoot yield.
Observation Varieties with increased shoot yield still had decreased root yield.
Recommendation The authors recommend breeding for BYDV induced yield gains.

Mechanism 47

Show all 47 →

Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

Reduced pod number accounted for the yield decrease.

Taxon: soybeansGlycine maxt0
Outcome: decrease in seed yielde0
Qualifier: decrease in number of pods per plante0

Verbatim

e0
“The decrease in seed yield observed in both experimentsmore » was due to a decrease in number of pods per plant”
✓ located verbatim in the source · abstract, characters 1164–1275

t0
“soybeans”
✓ located verbatim in the source · title, characters 95–103

Title

Comparison of experimental designs to determine effects of acidic precipitation on field-grown soybeans

Levi Evans; Keith F. Lewin; M Patti; et al. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1982

Other claims from this paper (8)

Intervention effect Simulated acidic rain at pH 4.1 reduced soybean seed yield by 10.7 relative to pH 5.6.
Intervention effect Simulated acidic rain at pH 3.3 reduced soybean seed yield by 16.8 relative to pH 5.6.
Intervention effect Simulated acidic rain at pH 2.7 reduced soybean seed yield by 22.9% relative to pH 5.6.
Association Seed yield had a strong positive relation with rain pH in the first experiment.
Intervention effect In the unshielded experiment, pH 4.1 reduced soybean yield by 2.7 relative to pH 5.6.
Intervention effect In the unshielded experiment, pH 3.3 reduced soybean yield by 7.0 relative to pH 5.6.
Intervention effect In the unshielded experiment, pH 2.7 reduced soybean yield by 7.6 relative to pH 5.6.
Association In the second experiment seed mass rose with rain pH with a correlation coefficient of 0.97.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Fruit growth tended to decrease over years, probably because of higher yield loads.

Taxon: applesMalus domesticat0
Outcome: fruit growth to decrease over yearse0
Direction: decreasee0
Qualifier: increased yield loadse0

Verbatim

e0
“The tendency for fruit growth to decrease over years was probably due to increased yield loads.”
✓ located verbatim in the source · abstract, characters 670–765

t0
“apples”
✓ located verbatim in the source · title, characters 22–28

Title

Growth and quality of apples as affected by different irrigation treatments

J. De V. Lötter; D. J. Beukes; H. W. Weber Journal of Horticultural Science 1985. doi:10.1080/14620316.1985.11515617

Other claims from this paper (14)

Intervention effect Fruit circumference growth increased linearly with TAW level in phases 2 and 3.
Observation Most total fruit growth was completed during phase 2.
Observation Most shoot extension growth was completed during phase 1.
Intervention effect Shoot growth was more vigorous at 85% TAW than 25% TAW during phase 2.
Observation At 85% and 65% TAW, trunk growth was completed mainly at the end of phase 2.
Observation At 45% and 25% TAW, trunk growth was completed by the end of phase 1.
Association Trunk growth correlated positively with water application in phases 1 and 2 and slightly in phase 3.
Intervention effect Lower TAW during main fruit development reduced apple fruit size.
Recommendation Growers should favor 85% TAW in phases 2 and 3.
Intervention effect Watercore worsened as TAW increased.
Intervention effect Sunburn increased strongly as TAW decreased.
Intervention effect Superficial scald varied with irrigation treatment, though the result was difficult to interpret.
Association Scald incidence tended to correlate positively with TAW in phases 3 and 4.
Intervention effect Bitter pit occurrence increased with higher TAW during every phase.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Reduced branching and head count explained the lower seed yield per plant.

Taxon: safflowerCarthamus tinctoriust0
Outcome: decrease in seed yield per plante0
Qualifier: decrease in the number of heads per plante0

Verbatim

e0
“the decrease in seed yield per plant was caused by the decrease in the number of heads per plant, which resulted from the decrease in the number of branches”
✓ located verbatim in the source · abstract, characters 1732–1888

t0
“safflower”
✓ located verbatim in the source · title, characters 68–77

Title

Effects of soil water deficit on seed yield and yield components of safflower (Carthamus tinctorius L.) plants.

Hisayoshi HAYASHI; Kiichi HANADA Japanese Journal of Crop Science 1985. doi:10.1626/jcs.54.346

Other claims from this paper (8)

Intervention effect Water deficit inhibited main-stem internode elongation and lower-node lateral bud growth.
Intervention effect Water deficit did not affect main-stem leaf and bract counts.
Intervention effect At 40% soil water capacity, uppermost-branch leaf count fell nonsignificantly.
Intervention effect At 40% soil water capacity, uppermost-branch bract count increased.
Intervention effect Water deficit significantly decreased mean and total leaf and bract area.
Intervention effect The 40% water treatment delayed flowering of uppermost branch heads.
Intervention effect Water deficit substantially decreased seeds and seed yield per plant.
Intervention effect Water deficit did not affect floret count, seed ripening percentage, or seed count and dry weight per head.

Recommendation 8

Show all 8 →

Recommendationauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Selection for yield could decrease meat and oil content.

Taxon: peanutArachis hypogaeat0
Outcome: meat and oil contente0
Direction: decreasee0

Verbatim

e0
“but would decrease meat and oil content”
✓ located verbatim in the source · abstract, characters 1887–1926

t0
“Peanut”
✓ located verbatim in the source · title, characters 107–113

Title

Heritabilities and Genetic Correlations for Yield and Quality Traits of Advanced Generations in a Cross of Peanut1

Hee Yang Chiow; J. C. Wynne Peanut Science 1983. doi:10.3146/i0095-3679-10-1-5

Other claims from this paper (16)

Observation Progenies varied substantially for yield, seed weight, meat and protein content.
Observation Progenies varied less for fruit length, fruit weight, oil content and maturity index.
Observation Heritability was highest for yield, meat and protein content.
Observation Heritability was intermediate for fruit length, fruit weight and seed weight.
Observation Heritability was lowest for oil content and maturity index.
Observation Genotypic correlations were generally higher than phenotypic correlations.
Association Maturity index showed low phenotypic correlations with yield and yield components.
Association Fruit size was highly correlated with seed weight.
Association Fruit size and seed weight were significantly correlated with yield.
Association Protein content and yield correlations were low.
Association Oil content was negatively correlated with yield.
Recommendation Selecting yield components was less effective than selecting yield directly.
Recommendation Selection for yield could increase protein content and fruit and seed traits.
Observation Transgressive segregation occurred across all studied traits.
Observation Progeny trait means were closer to the Spanish than the Virginia parent.
Observation Some progeny combined early maturity, high yield and large fruit.

Recommendationauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

The authors suggest ethephon may decrease grain yield without lodging.

Taxon: maizeZea mayst0
Outcome: decrease grain yielde0
Qualifier: in the absence of lodginge0

Verbatim

e0
“may decrease grain yield in the absence of lodging because of its potential deleterious effect on kernel number and growth”
✓ located verbatim in the source · abstract, characters 1708–1830

t0
“Maize”
✓ located verbatim in the source · title, characters 39–44

Title

Growth, Yield, and Yield Components of Maize as Influenced by Ethephon

W. J. Cox; H. F. Andrade Crop Science 1988. doi:10.2135/cropsci1988.0011183x002800030023x

Other claims from this paper (11)

Intervention effect Ethephon did not affect phytomass, NAR, or CGR in the dry 1985 season.
Intervention effect Ethephon reduced phytomass, NAR, and CGR in the wet 1986 season.
Association Plant density and hybrid did not influence growth response to ethephon.
Intervention effect Ethephon reduced lodging by 64%.
Intervention effect Ethephon had no overall effect on grain yield.
Intervention effect Ethephon increased Cornell 281 grain yield from 7.78 to 8.24 Mg ha −1.
Intervention effect Ethephon decreased Pioneer 3901 grain yield from 9.63 to 8.56 Mg ha −1.
Intervention effect Ethephon increased Cornell 281 kernel weight from 263 to 266 mg.
Intervention effect Ethephon decreased Pioneer 3901 kernel weight from 282 to 264 mg.
Intervention effect Ethephon significantly decreased kernels per ear in both hybrids from 494 to 474.
Recommendation The authors suggest ethephon may enhance maize yield where lodging is a problem.

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Hand weeding within 30 days after planting should be practiced to minimize yield decrease in sesame.

Taxon: sesameSesamum indicume0
Treatment: hand weedinge1
Outcome: yield decreasee1
Qualifier: within 30 days after plantinge1

Verbatim

e0
“weed competition in sesame”
✓ located verbatim in the source · abstract, characters 60–86

e1
“once more hand weeding should be practiced within 30 days after planting to minimize yield decrease”
✓ located verbatim in the source · abstract, characters 1324–1423

Title

Effect of Different PE Mulching Duration on the Competition Ability of Sesame Growing in Association with Various Weed Communities

J.I. Lee; Chung-Kil Kang; Y.W. Kwon Korean Journal of Weed Science 1986

Other claims from this paper (15)

Observation The number of weeds in sesame was maximum at 30 days after planting.
Observation Broad leaf weeds were more dominant than grass weeds in sesame.
Observation The weight of weeds increased continuously over the season.
Observation No weeds appeared in sesame until 15 days after planting.
Observation The weight of broad leaf weeds was heavier than that of grass weeds until 45 days after planting.
Observation Grass weeds were heavier than broad leaf weeds after 60 days after planting.
Observation Weed hazards to sesame growth and development appeared seriously from 60 to 75 days after planting.
Observation Main yield reduction of sesame appeared from 30 days after planting.
Observation Removing black PE film after 15 to 30 days after planting caused serious weed hazards to sesame growth characteristics.
Observation Removing black PE film caused serious weed hazards to sesame grain yield 30 days later.
Observation Leaf growth of sesame was maximum from 45 to 60 days after planting.
Observation Stem and root of sesame showed continuous increase in optimum planting.
Intervention effect Sesame growth decreased under the weedy check compared with PE film mulch and hand weeding.
Intervention effect Black PE film mulch lowered sesame growth compared with optimum planting and transparent PE film mulch.
Association Sesame yield decreased as weed weight increased.

Method / resource 5

Show all 5 →

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Goodness of fit of relative yield decrease with mean CWSI was r 2 = 0.78 for the combined plantings.

Taxon: Spring WheatTriticum aestivumt0
Outcome: relative Y decrease with mean CWSIe5
Value: r 2 = 0.78e5

Verbatim

t0
“Spring Wheat”
✓ located verbatim in the source · title, characters 43–55

e5
“for relative Y decrease with mean CWSI, r 2 = 0.78”
✓ located verbatim in the source · abstract, characters 1417–1467

Title

Evapotranspiration and Yield Estimation of Spring Wheat from Canopy Temperature¹

R. A. Diaz; A. D. Matthias; R. J. Hanks Agronomy Journal 1983. doi:10.2134/agronj1983.00021962007500050018x

Other claims from this paper (8)

Method / resource Goodness of fit of ET versus the temperature-stress-day index was large (r 2 at least 0.93).
Method / resource Goodness of fit of ET versus the stress-degree-day index was large (r 2 at least 0.86).
Method / resource Large r 2 values were obtained for yield versus the temperature-stress-day and stress-degree-day indices.
Method / resource For combined data from all plantings, r 2 for ET versus the stress-degree-day index was 0.90.
Method / resource For combined data from all plantings, r 2 for yield versus the temperature-stress-day index was 0.21.
Observation Slopes and intercepts of the individual regression lines were significantly different.
Method / resource Goodness of fit of relative ET deficit with mean CWSI was r 2 = 0.86 for the combined plantings.
Recommendation The authors recommend the stress-degree-day index as most suitable for wheat yield assessment and water management in northern Utah.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

NaN03-soluble soil nickel better predicted lettuce yield decrease than total or CaCl2-soluble soil nickel.

Taxon: lettuceLactuca sativae0
Treatment: NaN03‐soluble soil Nie0
Outcome: decrease in yielde0
Direction: better suitede0
Qualifier: irrespective of soil typee0
Comparator: total soil Ni (Added+ Native) and CaCl2 soluble soil Nie0

Verbatim

e0
“NaN03‐soluble soil Ni, irrespective of soil type, is better suited to predict the decrease in yield and increase in Ni‐concentration of lettuce leaves as compared to total soil Ni (Added+ Native) and CaCl2 soluble soil Ni.”
✓ located verbatim in the source · abstract, characters 489–711

Title

The effect of graded doses of nickel on the yield, the nickel content of lettuce and the soil respiration

S.K. Gupta; H. Hani; E. Santschi; et al. Toxicological & Environmental Chemistry Reviews 1987. doi:10.1080/02772248709357189

Other claims from this paper (4)

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The variability response index quantitatively expressed yield decline from soil potassium variability.

Outcome: Decrease in yield due to spatial variability of soil Ke0
Direction: Decreasee0
Comparator: relatively uniform distribution of soil Ke0

Not reportedTaxon

Verbatim

e0
“Decrease in yield due to spatial variability of soil K was quantitatively expressed by the variability response index (VRI), i.e., the product of the variance of soil K and the second derivative of yield with respect to exchangeable K obtained under a relatively uniform distribution of soil K”
✓ located verbatim in the source · abstract, characters 509–802

Title

CORN RESPONSE TO SPATIAL VARIABILITY OF RESIDUAL POTASSIUM

J. P. NDIAYE; R. S. YOST Soil Science 1989. doi:10.1097/00010694-198907000-00001

Other claims from this paper (4)

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics

Intervention effect 450

Association 182

Observation 108

Mechanism 47

Recommendation 8

Method / resource 5