Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Higher temperatures shortened grain-filling duration, accounting for nearly all of the grain-yield decrease.

Taxon: MAIZEZea mayst0
Outcome: decreases in grain yielde0
Qualifier: shorter duration of grain fillinge0

Verbatim

e0
“The decreases in grain yield were almost entirely determined by a shorter duration of grain filling”
✓ located verbatim in the source · abstract, characters 795–894

t0
“WHOLE PLANT AND GRAIN YIELD IN MAIZE (Zea mays L.)”
✓ located verbatim in the source · title, characters 46–96

Title

EFFECT OF TEMPERATURE DURING GRAIN FILLING ON WHOLE PLANT AND GRAIN YIELD IN MAIZE (Zea mays L.)

B. BADU-APRAKU; R. B. HUNTER; M. TOLLENAAR Canadian Journal of Plant Science 1983. doi:10.4141/cjps83-040

Other claims from this paper (9)

Intervention effect Higher temperatures reduced whole-plant dry matter accumulation during grain filling.
Intervention effect Higher temperatures shortened the period from 18 days after silking to complete leaf senescence.
Intervention effect Higher temperatures lowered the rate of whole-plant dry matter production to a limited extent.
Intervention effect Grain yield per plant was lower under higher temperatures.
Intervention effect Temperature had no observed effect on kernel growth rates.
Intervention effect Temperature had no observed effect on kernel number per ear.
Mechanism Kernel dry-matter gain during rapid grain filling drew on stored assimilates and current photosynthesis.
Intervention effect At the highest temperature, remobilized assimilates accounted for a greater share of kernel weight gain.
Intervention effect Higher night temperatures may increase the share of kernel gain supplied by remobilized stored dry matter.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Paclobutrazol caused no apparent decrease in leaf photosynthetic rate.

Taxon: Nectarine TreesPrunus persica var. nucipersicat0
Treatment: paclobutrazole1
Outcome: leaf photosynthetic ratee0
Direction: no apparent decreasee0

Not reportedComparator

Verbatim

e0
“no apparent decrease in fruit yield or leaf photosynthetic rate”
✓ located verbatim in the source · abstract, characters 510–573

e1
“The paclobutrazol treatment resulted”
✓ located verbatim in the source · abstract, characters 395–431

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 fruit yield.
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 resultno effectmeasured

Claim · model-written summary

Transfer from low to high PPFD did not decrease orange quantum yield.

Taxon: orangee0
Treatment: Transferring seedlings from low to high PPFDe0
Outcome: øe0
Comparator: lowe0

Not reportedDirection

Verbatim

e0
“Transferring seedlings from low to high PPFD decreased ø of grapefruit but not of orange leaves”
✓ located verbatim in the source · abstract, characters 773–868

Title

Light Acclimation in Citrus Leaves. II. CO2 Assimilation and Light, Water, and Nitrogen Use Efficiency

J. P. Syvertsen Journal of the American Society for Horticultural Science 1984. doi:10.21273/jashs.109.6.812

Other claims from this paper (8)

Association High PPFD leaves had greatest maximum CO2 assimilation in both species.
Association Low PPFD leaves had highest apparent quantum yield in both species.
Association Low PPFD grapefruit leaves had lower WUE than high PPFD leaves.
Intervention effect Moving low PPFD grapefruit leaves into sunlight raised WUE within two weeks.
Intervention effect Transfer from low to high PPFD decreased grapefruit quantum yield.
Association Changes in assimilation correlated more strongly with mesophyll conductance than leaf conductance.
Association Assimilation rate positively correlated with total leaf nitrogen.
Observation Mature citrus leaves acclimate to new light regimes.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Adding border rows of the same cultivar on each side of the harvested row did not decrease proso millet yield variance.

Taxon: proso milletPanicum miliaceume1
Treatment: adding border rows of the same cultivar on each side of the harvested rowe5
Outcome: variancee5
Direction: did not decreasee5

Not reportedComparator

Verbatim

e1
“Variability in proso millet ( Panicum miliaceum L.) yields due to number of rows planted and harvested in field experimentation was compared using four cultivars”
✓ located verbatim in the source · abstract, characters 273–434

e5
“adding border rows of the same cultivar on each side of the harvested row did not decrease variance”
✓ located verbatim in the source · abstract, characters 1102–1201

Title

Yield Variability in Proso Millet Due to Plot Size¹

L. A. Nelson Agronomy Journal 1981. doi:10.2134/agronj1981.00021962007300010006x

Other claims from this paper (4)

Intervention effect Harvesting three rows minimised variance of proso millet yield.
Intervention effect Number of rows harvested had a greater effect on yield variance of proso millet than number of rows planted.
Intervention effect Plots with one border row of their own genotype on each side produced higher proso millet yields than plots with zero or two border rows.
Recommendation Planting five rows and harvesting the centre three rows is the optimum plot size for testing proso millet cultivars.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Variable fluorescence yield decreased, reflecting lower photosystem II quantum yield.

Taxon: spinachSpinacia oleraceae1
Outcome: variable fluorescence yielde0
Direction: decreasee0

Verbatim

e0
“A decrease in variable fluorescence yield reflects a lowering of photosystem II quantum yield”
✓ located verbatim in the source · abstract, characters 1028–1121

e1
“intact spinach leaves with SO 2”
✓ located verbatim in the source · abstract, characters 51–82

Title

SO₂ Injury in Intact Leaves, as Detected by Chlorophyll Fluorescence

Wolfgang Schmidt; Ulrich Schreiber; Wolfgang Urbach Zeitschrift für Naturforschung C 1988. doi:10.1515/znc-1988-3-419

Other claims from this paper (5)

Method / resource Slow induction kinetics with saturation pulses was the most sensitive fluorescence measurement for SO2 injury.
Observation SO2 caused primary damage at Calvin cycle enzymatic reactions.
Observation Longer fumigation made photosystem II damage apparent.
Observation Fluorescence relaxation slowed, indicating affected secondary electron transport.
Association Detrimental SO2 effects depended strongly on light during fumigation.

Intervention effectobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

The estimated yield decrease of cotton from ambient ozone in water-stressed plots was 7%, not statistically significant.

Taxon: cottonGossypium hirsutumt0
Treatment: ambient O 3e2
Outcome: yielde2
Direction: decreasee2
Value: 7%e4
Qualifier: WS plote4
Comparator: charcoal‐filtered air plotse3

Verbatim

t0
“Injury and Yield Response of Cotton to Chronic Doses of Ozone and Soil Moisture Deficit”
✓ located verbatim in the source · title, characters 0–87

e2
“ambient O 3 (seasonal 12 h d −1 mean of 0.044 µ L L −1 ) caused a yield decrease of 19% in the WW plots”
✓ located verbatim in the source · abstract, characters 824–927

e3
“compared to the O 3 level in our charcoal‐filtered air plots”
✓ located verbatim in the source · abstract, characters 928–988

e4
“The comparable estimate for data from the WS plot was 7%, but this regression was not statistically significant”
✓ located verbatim in the source · abstract, characters 1035–1146

Title

Injury and Yield Response of Cotton to Chronic Doses of Ozone and Soil Moisture Deficit

Allen S. Heagle; J. E. Miller; W. W. Heck; et al. Journal of Environmental Quality 1988. doi:10.2134/jeq1988.00472425001700040019x

Other claims from this paper (4)

Intervention effect Ozone caused a significant yield loss of cotton in well-watered plots.
Intervention effect Ozone did not cause a significant yield loss of cotton in water-stressed plots.
Intervention effect Ambient ozone caused a 19% yield decrease of cotton in well-watered plots compared with charcoal-filtered air.
Association Soil moisture deficit can decrease the impact of ozone on cotton yield.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Most V5 damage treatments did not significantly reduce yield.

Taxon: SoybeanGlycine maxt0
Treatment: treatments at V5e0
Outcome: yielde0
Direction: did not significantly decreasee0

Not reportedComparator

Verbatim

t0
“Soybean”
✓ located verbatim in the source · title, characters 85–92

e0
“Most of the treatments at V5 did not significantly decrease yield”
✓ located verbatim in the source · abstract, characters 900–965

Title

Yield Reduction from Defoliation and Plant Cutoff of Determinate and Semideterminate Soybean¹

C. S. Pickle; C. E. Caviness Agronomy Journal 1984. doi:10.2134/agronj1984.00021962007600030026x

Other claims from this paper (9)

Observation Forrest yielded significantly more than R74‐334 in both years.
Intervention effect Three V5 treatments significantly increased yield.
Intervention effect At R3, treatments damaging at least half the plants generally significantly reduced yield.
Intervention effect Cutoff followed by complete defoliation of all plants caused the greatest yield reduction.
Intervention effect That cutoff and defoliation treatment reduced Forrest yield by 51%.
Intervention effect That cutoff and defoliation treatment reduced R74‐334 yield by 44%.
Intervention effect Complete defoliation at R3 reduced both genotypes’ yield by 33%.
Association No first order genotype interactions were significant, indicating similar damage responses.
Recommendation Authors recommend using determinate soybean loss values for semideterminate types.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Stem populations tended to decrease as crop age increased.

Taxon: chicoryCichorium intybust0
Organ / stage: Steme0
Outcome: Stem populationse0
Direction: decreasee0
Qualifier: age of the crope0

Verbatim

e0
“Stem populations tended to decrease with the age of the crop.”
✓ located verbatim in the source · abstract, characters 540–601

t0
“chicory”
✓ located verbatim in the source · title, characters 87–94

Title

Effect of time of closing and paclobutrazol (PP333) on seed yield of ‘Grasslands Puna’ chicory ( Cichorium intybus L.)

M. D. Hare; M. P. Rolston New Zealand Journal of Crop and Horticultural Science 1987. doi:10.1080/03015521.1987.10425591

Other claims from this paper (9)

Intervention effect Defoliation after October severely reduced chicory seed yield.
Intervention effect Seed yield did not differ significantly among May, August, September and October closing dates in 1984–85.
Observation September closing gave the highest seed yield of 282 kg/ha.
Observation May closing gave the highest seed yield of 228 kg/ha in 1985–86.
Association Stem population appeared to be the most important seed-yield component, especially in early closed crops.
Intervention effect Earlier closing produced more concentrated flowering.
Intervention effect Earlier closing made harvest timing easier to judge.
Intervention effect Paclobutrazol had no effect on seed yield.
Observation Puna chicory accumulated herbage at over 200 kg dry matter/ha per day from October onward.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

An increase in one yield component did not lead to a compensating decrease in any other component.

Taxon: koringt0
Outcome: kompenserende afname in enige van die ander komponentee7

Verbatim

t0
“Opbrengskomponente van koring”
✓ located verbatim in the source · title, characters 0–29

e7
“'n Toename in een komponent het nie tot 'n kompenserende afname in enige van die ander komponente gelei nie”
✓ located verbatim in the source · abstract, characters 700–807

Title

Opbrengskomponente van koring by verskillende vlakke van grondvrugbaarheid

P. S. Hammes; J. G. Annandale; E. A. Beyers; et al. South African Journal of Plant and Soil 1986. doi:10.1080/02571862.1986.10634198

Other claims from this paper (8)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

With increasing insecticide dose, chilli germination and survival showed decrease.

Taxon: chillit0
Treatment: each insecticidee0
Outcome: germination and survivale0
Direction: decreasee0

Verbatim

e0
“Within each insecticide the decrease in germination and survival and increase in percent of anbormal meiotic cells and percent of pollen sterility followed an increasing trend.”
✓ located verbatim in the source · abstract, characters 669–845

t0
“chilli (Capsicum annuum L.)”
✓ located verbatim in the source · title, characters 162–189

Title

Cytogenetic effects of agricultural chemicals I. Effects of insecticides "BHC and nuvacron" on chromosomal mechanism in relation to yield and yield components in chilli (Capsicum annuum L.).

S. Srihari Reddy; G. Madhusudana Rao CYTOLOGIA 1981. doi:10.1508/cytologia.46.699

Other claims from this paper (16)

Intervention effect BHC adversely affected chilli germination and survival.
Intervention effect Nuvacron adversely affected chilli germination and survival.
Intervention effect Nuvacron injured chilli germination and survival more than BHC.
Intervention effect BHC produced abnormalities in dividing chilli PMCs.
Intervention effect Nuvacron produced abnormalities in dividing chilli PMCs.
Intervention effect Nuvacron caused a higher frequency of chilli PMC abnormalities than BHC.
Observation Chilli pollen sterility nine days after BHC spray was low.
Observation Chilli pollen sterility nine days after Nuvacron spray was high.
Association With increasing insecticide dose, chilli percent of anbormal meiotic cells showed increase.
Association With increasing insecticide dose, chilli percent of pollen sterility showed increase.
Intervention effect Chilli yield under BHC treatments was uneffected.
Intervention effect Chilli yield under normal concentration (0.04%) of Nuvacron was increased.
Intervention effect Chilli yield under highest concentration (0.12%) was decreased.
Intervention effect Chilli yield under Nuvacron 0.08 percent was on par.
Recommendation The authors recommended 0.04 percent Nuvacron for pest control and increased chilli yield.
Recommendation The authors advised against doses above the recommendation because of chromosomal abnormalities and yield reduction.

“yield decrease”

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