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“yield decrease”

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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.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Paclobutrazol caused no apparent decrease in fruit yield.

Taxon: Nectarine TreesPrunus persica var. nucipersicat0
Treatment: paclobutrazole0
Outcome: fruit yielde0
Direction: no apparent decreasee0
Comparator: controlse0

Verbatim

e0
“The paclobutrazol treatment resulted in a 67.9% decrease in annual extension shoot growth compared to controls and no apparent decrease in fruit yield”
✓ located verbatim in the source · abstract, characters 395–545

t0
“Nectarine Trees”
✓ located verbatim in the source · title, characters 60–75

Title

Leaf Gas Exchange and Growth Responses of Mature ‘Fantasia’ Nectarine Trees to Paclobutrazol

T. M. DeJong; J. F. Doyle Journal of the American Society for Horticultural Science 1984. doi:10.21273/jashs.109.6.878

Other claims from this paper (10)

Intervention effect Paclobutrazol reduced annual extension shoot growth by 67.9% versus controls.
Intervention effect Paclobutrazol caused no apparent decrease in leaf photosynthetic rate.
Intervention effect Paclobutrazol reduced total tree leaf area by an estimated 54.5%.
Association Fruit presence had no apparent effect on leaf CO 2 assimilation.
Association Fruit maturity stage had no apparent effect on leaf CO 2 assimilation.
Intervention effect Treated extension shoots had shorter internodes and larger diameters than untreated shoots.
Intervention effect Treated shoots had larger diameters than untreated shoots.
Intervention effect Treated shoots had more flower buds per unit length.
Intervention effect Treated shoots had higher specific shoot dry weights.
Intervention effect Treated shoots had fewer buds per unit shoot dry weight.

Intervention effectobservedoriginal resultsimulated

Claim · model-written summary

Also assuming uniform synthesis efficiency caused an additional 4% decrease in simulated yield.

Taxon: SorghumSorghumt0
Treatment: assuming that Y g also was uniforme0
Outcome: yieldt0
Direction: decreasee0
Value: 4%e0

Not reportedComparator

Verbatim

e0
“assuming that Y g also was uniform led to an additional decrease of 4%”
✓ located verbatim in the source · abstract, characters 1509–1579

t0
“Sorghum Grain Yield”
✓ located verbatim in the source · title, characters 15–34

Title

Sensitivity of Sorghum Grain Yield to Ontogenetic Changes in Respiration Coeffecients

Keith J. McCree Crop Science 1988. doi:10.2135/cropsci1988.0011183x002800010025x

Other claims from this paper (4)

Method / resource Simulated daily carbon balance, biomass, and grain yield closely matched sorghum field data under warm, sunny, humid conditions.
Intervention effect The model indicated that lowering night temperature by 10°C would increase sorghum yield by only 4%.
Intervention effect Assuming uniform maintenance requirements across organs underestimated sorghum yield by 35%.
Recommendation Selecting for lower panicle maintenance may have little capacity to increase sorghum yield.

Intervention effectobservedoriginal resultnegativeprojected

Claim · model-written summary

Loss of seed treatments would decrease corn yield through yield losses.

Taxon: cornZea mays subsp. mayse2
Treatment: The loss of seed treatmentse2
Outcome: yield lossese2
Direction: decreaseinferrede2

Not reportedComparator

Verbatim

e2
“The loss of seed treatments would result in yield losses to both corn and soybeans”
✓ located verbatim in the source · abstract, characters 203–285

Title

PESTICIDE ASSESSMENT OF FIELD CORN AND SOYBEANS: NORTHERN PLAINS STATES

Bergman, Paul W.; Davis, Ronald A.; Fertig, Stanford N.; et al. AgEcon Search (University of Minnesota, USA) 1985. doi:10.22004/ag.econ.277781

Other claims from this paper (4)

Observation Without insecticides, corn rootworm larvae and other soil insects would cause substantial corn yield losses.
Intervention effect Loss of seed treatments would decrease soybean yield through yield losses.
Intervention effect Loss of thiocarbamate herbicides would cause the greatest corn yield losses among herbicides.
Intervention effect Loss of dinitroanilines or triazines would cause the greatest soybean yield losses.

Intervention effectobservedoriginal resultnegativeprojected

Claim · model-written summary

Loss of seed treatments would decrease soybean yield through yield losses.

Taxon: soybeansGlycine maxe2
Treatment: The loss of seed treatmentse2
Outcome: yield lossese2
Direction: decreaseinferrede2

Not reportedComparator

Verbatim

e2
“The loss of seed treatments would result in yield losses to both corn and soybeans”
✓ located verbatim in the source · abstract, characters 203–285

Title

PESTICIDE ASSESSMENT OF FIELD CORN AND SOYBEANS: NORTHERN PLAINS STATES

Bergman, Paul W.; Davis, Ronald A.; Fertig, Stanford N.; et al. AgEcon Search (University of Minnesota, USA) 1985. doi:10.22004/ag.econ.277781

Other claims from this paper (4)

Observation Without insecticides, corn rootworm larvae and other soil insects would cause substantial corn yield losses.
Intervention effect Loss of seed treatments would decrease corn yield through yield losses.
Intervention effect Loss of thiocarbamate herbicides would cause the greatest corn yield losses among herbicides.
Intervention effect Loss of dinitroanilines or triazines would cause the greatest soybean yield losses.

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

There was no evidence for a decrease in yield caused by root-zone warming.

Taxon: Rosee0
Treatment: RZWe1
Outcome: yielde1
Direction: decreasee1

Verbatim

e0
“Rose cvs Ilona, Mercedes and Sonia”
✓ located verbatim in the source · abstract, characters 7–41

e1
“There was no evidence for a decrease in yield caused by RZW”
✓ located verbatim in the source · abstract, characters 1540–1599

Title

The effects of root-zone warming on the yield and quality of roses grown in a hydroponic system

G. I. Moss Journal of Horticultural Science 1984. doi:10.1080/00221589.1984.11515231

Other claims from this paper (19)

Intervention effect Root-zone warming gave Sonia 44% more blooms than ambient root temperature in Experiment 1.
Intervention effect Root-zone warming increased stem length of Sonia by 26% compared with ambient root temperature in Experiment 1.
Association Ilona gave a yield response to root-zone warming only at a night temperature of 12°C.
Association Root-zone warming resulted in 22% longer stems in Ilona.
Association Root-zone warming gave Mercedes 22% more blooms.
Association Root-zone warming produced 113% more blooms in Mercedes in the second year.
Association Root-zone warming produced 61% more blooms in Sonia in the second year.
Association Root-zone warming produced 42% more blooms in Ilona in the second year.
Observation Stem lengths of the roses increased by 6-7%.
Association Root-zone warming gave Mercedes 61% more blooms in the first-year plants of Experiment 3.
Association Root-zone warming gave Sonia 24% more blooms in the first-year plants of Experiment 3.
Association Root-zone warming gave Ilona 18% more blooms in the first-year plants of Experiment 3.
Association Ilona showed the largest increase in stem length, 24%, under root-zone warming.
Association Root-zone warming increased the amplitude of the growth flushes.
Association Root-zone warming left the frequency of growth flushes unaffected.
Association Summer yields indicate residual effects of the winter root-zone warming treatments.
Association Sonia gave significantly higher yields from root-zone warming in Experiment 1.
Association Mercedes and Sonia gave significantly higher yields from root-zone warming in Experiment 2.
Association Ilona gave a lower summer yield in Experiment 3.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

More than one post-sowing irrigation tended to decrease yield and water use efficiency.

Taxon: mustardt0
Treatment: More than one post-sowing irrigatione0
Outcome: yield and water use efficiencye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“More than one post-sowing irrigation tended to decrease yield and water use efficiency”
✓ located verbatim in the source · abstract, characters 588–674

t0
“mustard”
✓ located after whitespace/quote normalisation · title, characters 44–51

Title

Effects of Irrigation Schedules on Yield of Mustard (Brassica Juncea)

S. S. Prihar; K. S. Sandhu; K. L. Khera; et al. Experimental Agriculture 1981. doi:10.1017/s0014479700011297

Other claims from this paper (6)

Intervention effect One irrigation three weeks after sowing gave maximum grain yield, 40% above no irrigation in 1973–74.
Intervention effect One irrigation three weeks after sowing increased grain yield 30% over no irrigation in 1976–77.
Intervention effect One irrigation three weeks after sowing gave maximum water use efficiency.
Observation Total water use with one irrigation averaged 31·2 cm.
Observation Water extraction from the 0–180 cm soil profile was 15·8 cm.
Association Crop soil water use decreased as post-sowing irrigation increased.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Paclobutrazol did not decrease tart cherry yield in any season.

Taxon: tart cherryt0
Treatment: paclobutrazole5
Outcome: yielde5
Direction: no_changeinferrede5

Not reportedComparator

Verbatim

t0
“paclobutrazol-treated tart cherry trees”
✓ located verbatim in the source · title, characters 65–104

e5
“In no season did paclobutrazol decrease yield”
✓ located verbatim in the source · abstract, characters 1607–1652

Title

Growth, reproductive development and dormancy characteristics of paclobutrazol-treated tart cherry trees

R. H. Walser; T. D. Davis Journal of Horticultural Science 1989. doi:10.1080/14620316.1989.11515975

Other claims from this paper (12)

Intervention effect A single spring paclobutrazol application decreased shoot growth in tart cherry trees during the first and second seasons after treatment.
Intervention effect Paclobutrazol increased the proportion of flower buds to vegetative buds in tart cherry during the first dormant period.
Intervention effect Paclobutrazol advanced the date of full bloom in tart cherry by two to four days.
Intervention effect Paclobutrazol decreased the growing degree hours required to reach full bloom by 700–900 in tart cherry trees.
Intervention effect Paclobutrazol tended to decrease rest intensity in both terminal and lateral buds of tart cherry.
Intervention effect In some tart cherry trees, paclobutrazol hastened the completion of rest.
Observation In tart cherry, lateral buds completed rest about one week before terminal buds regardless of treatment.
Observation Rest was completed in tart cherry buds at least by early December.
Intervention effect Flower buds from paclobutrazol-treated tart cherry trees had mid-winter T50 values about 2°C higher than controls.
Intervention effect Paclobutrazol increased flower bud frost damage in tart cherry by about 50% compared with controls during a severe winter cold spell in 1988.
Intervention effect In one season, paclobutrazol-treated tart cherry trees showed a dramatic three-fold yield increase.
Intervention effect Paclobutrazol had either no effect or slightly increased individual cherry weight in tart cherry, depending on the season.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Other nitrogen treatments did not decrease K-01 yield and components.

Taxon: SoybeansGlycine maxt0
Material: K-01 linee1
Treatment: other treatmentse0
Outcome: Yield and yield componentse1
Direction: no such decreasee0
Comparator: highest nitrogen treatmente1

Verbatim

e0
“However, in the other treatments no such decrease was observed”
✓ located verbatim in the source · abstract, characters 1788–1850

e1
“Yield and yield components decreased in K-01 line in the highest nitrogen treatment”
✓ located verbatim in the source · abstract, characters 1703–1786

t0
“Soybeans”
✓ located verbatim in the source · title, characters 43–51

Title

Fertilizer Response in Cultivated and Wild Soybeans

Shigeo MATSUMOTO; Ryoichi MATSUNAGA; Tadahiko FURUYA; et al. Japanese Journal of Crop Science 1982. doi:10.1626/jcs.51.293

Other claims from this paper (15)

Observation Fertilizer responses in vegetative growth and seed yield varied by soil, dramatically in sandy soil and slightly in upland and paddy soils.
Observation Both soybean species had low harvest indices in nutrient-poor sandy soil.
Observation Harvest indices were high in upland and paddy soils.
Observation Akisengoku had a higher harvest index than K-01 in upland and paddy soils.
Association Harvest indices in both soybean species declined above line-specific total top dry weights.
Intervention effect Akisengoku showed better vegetative growth response to nitrogen at an early stage.
Association At flowering, no relation between nitrogen and Akisengoku vegetative growth was recognized.
Intervention effect K-01 showed little or no growth response to nitrogen regardless of stage.
Intervention effect Nitrogen application had no significant effect on Akisengoku seed yield and yield components.
Intervention effect The highest nitrogen treatment decreased K-01 seed yield and yield components.
Intervention effect Nitrogen inhibited early nodulation in both soybean species.
Observation Early nodulation inhibition was greater in K-01 than Akisengoku.
Intervention effect Later Akisengoku nodulation under nitrogen was comparable to no nitrogen treatment.
Intervention effect Later K-01 nodulation in the highest nitrogen treatment was worse than with other treatments.
Mechanism The authors attribute reduced K-01 seed yield under the highest nitrogen treatment to impaired nodulation.

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“yield decrease”

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