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“yield decrease”

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plus 273 non-evaluative

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plus 3 earlier · 1910s

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Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Leafroll was associated with fewer bunches per vine and berries per bunch.

Taxon: sultanat0
Interactor: leafrolle0pathogen
Outcome: bunches per vine with fewer berries per bunche0
Direction: fewere0

Verbatim

t0
“sultana”
✓ located verbatim in the source · title, characters 20–27

e0
“The leafroll, which appeared to be a mild strain, was associated with a reduction in yield of about 15%, a small increase in weight of berry, fewer bunches per vine with fewer berries per bunch, and a slight decrease in sugar concentration in the berries when adjustment was made for the effect of yield.”
✓ located verbatim in the source · abstract, characters 319–623

Title

A comparison of 182 sultana clones selected for yield

AJ Antcliff; RC Woodham; KM Cellier Australian Journal of Agricultural Research 1979. doi:10.1071/ar9791111

Other claims from this paper (6)

Method / resource Selecting clones from nine or more years of source-vine yield was more effective than using four years.
Observation Longer-term selection mainly avoided leafroll-infected vines.
Association Leafroll was associated with about 15% lower yield.
Association Leafroll was associated with slightly greater berry weight.
Association Leafroll was associated with slightly lower berry sugar concentration after adjustment for yield.
Observation No clone was superior to clones already in use.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Biohumus at 0.3 l per plant decreased average fruit weight by 0.090 g (10.97%) relative to 0.4 l.

Taxon: Aronia melanocarpaAronia melanocarpae1
Treatment: 0.3 l per plante0
Outcome: average fruit weighte0
Direction: decreasee0
Value: 0.090 g (10.97%)e0
Comparator: 0.4 l per plante0

Verbatim

e0
“at the application of 0.3 l per plant, compared to the application of 0.4 l per plant, from the same product, there was a significant decrease, by 0.090 g (10.97%), of the average fruit weight”
✓ located verbatim in the source · abstract, characters 1082–1274

e1
“Aronia melanocarpa (Michx.) Elliot, 'Melrom' cultivar”
✓ located verbatim in the source · abstract, characters 73–126

e2
“the organic soil fertilizer, Biohumus”
✓ located verbatim in the source · abstract, characters 422–459

Title

THE EFFECT OF ECOLOGICAL FERTILIZATION ON GROWTH AND YIELD OF ARONIA MELANOCARPA (Michx.) Elliot, 'MELROM' ROMANIAN CULTIVAR

Mirela Calinescu; Ivona Cristina Enescu Mazilu; Emil Chitu; et al. FRUIT GROWING RESEARCH 2020. doi:10.33045/fgr.v36.2020.07

Other claims from this paper (3)

Intervention effect Biohumus at 0.3 l per plant increased aerial plant volume by 0.1085 m3 (11.88%) compared with 0.4 l per plant.
Intervention effect Biohumus at 0.2 l per plant increased average fruit weight by 0.095 g (11.02%) compared with 0.3 l.
Intervention effect Higher Biohumus doses reduced fruit firmness and fruit juice pH compared with 0.2 l per plant.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Removing 50% of Valencia leaves did not affect Brix or Brix-to-acid ratio.

Taxon: oranget0
Material: Valenciae0
Treatment: removal of 50% of the leavese0
Outcome: Brix or the Brix to acid ratio of the juicee0
Direction: did not affecte0

Not reportedComparator

Verbatim

e0
“In `Valencia', removal of 50% of the leaves in late March decreased fruit yield and soluble solids yield but did not affect Brix or the Brix to acid ratio of the juice”
✓ located verbatim in the source · abstract, characters 485–652

t0
“Orange Tree”
✓ located verbatim in the source · title, characters 76–87

Title

Partial Defoliation Can Decrease Average Leaf Size but Has Little Effect on Orange Tree Growth, Fruit Yield and Juice Quality

Rongcai Yuan; Fernando Alferez; Igor Kostenyuk; et al. HortScience 2005. doi:10.21273/hortsci.40.7.2011

Other claims from this paper (7)

Intervention effect Up to 50% leaf removal did not change Hamlin yield, fruit number or fruit size.
Intervention effect Up to 50% leaf removal did not change Hamlin soluble solids yield or juice measures.
Intervention effect Removing 50% of Valencia leaves decreased fruit yield and soluble solids yield.
Intervention effect Removing 50% of leaves reduced new-flush leaf size in both cultivars.
Intervention effect Removing 50% of leaves had little effect on canopy size.
Intervention effect Removing 25% of canopy leaves had no measured effects.
Association Fruit weight increased with leaf area per fruit.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Thinning beyond 18 cm did not significantly change fruit weight or quality.

Taxon: ‘Redspur Delicious’ applee0 t0 e1
Treatment: thinning fruit further than 18 cm aparte0 t0 e1
Outcome: fruit weight or qualitye0 t0 e1
Direction: without a significant changee0 t0 e1
Comparator: 18 cm fruit spacinge0 t0 e1

Verbatim

e0
“thinning fruit further than 18 cm apart reduced yield without a significant change in the fruit weight or quality”
✓ located verbatim in the source · abstract, characters 929–1042

t0
“‘Redspur Delicious’ apple”
✓ located verbatim in the source · title, characters 87–112

e1
“Fruit weight and quality was improved with 18 cm fruit spacing without a significant decrease in yield”
✓ located verbatim in the source · abstract, characters 819–921

Title

Effects of rootstock and thinning on yield, fruit quality and elemental composition of ‘Redspur Delicious’ apple

Esmaeil Fallahi; Brenda R. Simons Communications in Soil Science and Plant Analysis 1993. doi:10.1080/00103629309368825

Other claims from this paper (10)

Intervention effect M.7 rootstock increased yield relative to M.26.
Intervention effect M.7 fruit were heavier and firmer at harvest than M.26 fruit.
Intervention effect M.7 rootstock lowered leaf and fruit N compared with M.26.
Association Lower N on M.7 was associated with darker fruit color.
Intervention effect M.26 fruit had higher soluble solids concentration at harvest than M.7 fruit.
Association Leaf and fruit potassium increased with greater fruit spacing.
Association Fruit calcium decreased with greater fruit spacing.
Recommendation Thinning to 10 or 18 cm is recommended to improve fruit quality according to market size demand.
Intervention effect At 18 cm spacing fruit weight and quality improved without significant yield reduction.
Intervention effect Thinning beyond 18 cm reduced yield.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Oil from entire fruits had reduced sesquiterpenoids relative to comminuted fruits.

Taxon: Vitex agnus castus L.e2
Treatment: entire fruitse0
Outcome: sesquiterpenoidse0
Direction: decreaseinferrede0
Comparator: comminution of the fruitse1

Verbatim

e0
“at the expense of sesquiterpenoids in the oil obtained from entire fruits”
✓ located verbatim in the source · abstract, characters 739–812

e2
“Vitex agnus castus L.”
✓ located verbatim in the source · abstract, characters 85–106

e1
“comminution of the fruits”
✓ located verbatim in the source · abstract, characters 580–605

Title

Variation in Essential Oil Yield and Composition of CretanVitex agnus castusL. Fruits

Janina M. Sorensen; Stavros Th. Katsiotis Journal of Essential Oil Research 1999. doi:10.1080/10412905.1999.9701221

Other claims from this paper (12)

Observation More than 70 oil components were detected.
Observation Forty seven components accounting for 87% of total oil were identified.
Association Oil yield differed significantly between populations.
Association Quantitative oil composition differed significantly between populations.
Observation Sabinene was a main constituent of all oils at 16.6-31.2%.
Observation 1,8-cineole was a main constituent of all oils at 4.4-14.5%.
Observation (E)-β-farnesene was a main constituent of all oils at 4.8-9.9%.
Observation α-pinene was a main constituent of all oils at 0.4-10.2%.
Observation βcaryophyllene was a main constituent of all oils at 1.4-6.0%.
Observation Oil yields varied from 0.15% to 1.0%.
Intervention effect Entire fruits gave a slightly lower oil yield than comminuted fruits.
Intervention effect Oil from entire fruits had elevated monoterpenoid concentration.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Elemental sulfur reduced soil pH in Valencia orange cultivation.

Taxon: Citrus sinensis L. (cv. Valencia)Citrus sinensist0
Treatment: elementel kükürt uygulamasınıne0
Outcome: toprak pH’sınıne0
Direction: düşürülmesindee0

Not reportedComparator

Verbatim

e0
“elementel kükürt uygulamasının, toprak pH’sının düşürülmesinde etkili bir yöntem olduğu görülmüştür.”
✓ located verbatim in the source · abstract, characters 320–420

t0
“Citrus sinensis L. (cv. Valencia)”
✓ located verbatim in the source · title, characters 69–102

Title

Applications which decrease soil pH on yield and fruit properties in Citrus sinensis L. (cv. Valencia) grown in lime-alkaline soil.

Murat Güneri; Adalet Mısırlı; İbrahim Yokaş Muğla Sıtkı Koçman University Institutional Repository 2009

Other claims from this paper (2)

Intervention effect Sulfur application increased soil salinity.
Intervention effect Sulfur increased fruit juice vitamin C relative to control, without statistical significance.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Individual boron improved fruit TSS and TSS/acid ratio.

Taxon: mangoMangifera indicat0
Treatment: individual borone0
Outcome: fruit TSS and TSS/acid ratioe0
Direction: improvee0

Not reportedComparator

Verbatim

t0
“mango”
✓ located after whitespace/quote normalisation · title, characters 86–91

e0
“Foliar application of individual boron or in combination with calcium and zinc improve fruit TSS and TSS/acid ratio and decrease the acidity”
✓ located verbatim in the source · abstract, characters 1187–1327

Title

Effect of Calcium, Zinc and Boron Treatments on Flowering, Yield and Fruit Quality of Mango Ewais Cultivar

T. Maklad; O. El-Sawwah; S. Nassar Journal of Plant Production 2020. doi:10.21608/jpp.2020.149819

Other claims from this paper (16)

Intervention effect All tested treatments increased reproductive parameters, yield and fruit quality versus control.
Intervention effect The three-element spray increased panicle length and sex ratio.
Intervention effect Boron alone increased male and total flower numbers.
Intervention effect Zinc alone increased hermaphroditic flowers.
Intervention effect Calcium alone produced the highest fruit number and yield per tree.
Intervention effect Boron ranked after calcium for fruit number and yield per tree.
Intervention effect The three-element combination gave the highest fruit height, width and volume.
Intervention effect Individual zinc was superior for fruit weight.
Intervention effect The high combination level ranked after zinc for fruit weight.
Intervention effect The boron, calcium and zinc combination improved fruit TSS and TSS/acid ratio.
Intervention effect Individual boron decreased fruit acidity.
Intervention effect The boron, calcium and zinc combination decreased fruit acidity.
Intervention effect The higher three-element dose gave the highest leaf Ca, Zn and B content.
Intervention effect The lower three-element dose ranked second for leaf Ca, Zn and B content.
Intervention effect Each individual element increased its corresponding leaf content.
Recommendation The authors recommend four sprays of the three-element combination at 2.5ml/L to increase yield and fruit quality.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Growth regulator treatment increased cluster {size, weight}.

Taxon: grapest0
Material: early sweett0
Outcome: cluster {size, weight}e0
Direction: increasee0

Not reportedTreatmentComparator

Verbatim

e0
“The results led to: increase berry {size, weight, firmness}, increase cluster {size, weight}, increase total yield, decrease total soluble solids {degrees brix}and increase titratable acidity.”
✓ located verbatim in the source · abstract, characters 1360–1552

t0
“(EARLY SWEET) GRAPES”
✓ located verbatim in the source · title, characters 108–128

Title

EFFECT OF SOME GIBBERELLIC ACID AND FORCHLOROFENURON APPLICATION ON PRODUCTIVITY AND BERRIES DEVELOPMENT OF (EARLY SWEET) GRAPES

S. A. Ahmed; A. E. Hassan Menoufia Journal of Plant Production 2021. doi:10.21608/mjppf.2021.188220

Other claims from this paper (15)

Intervention effect Growth regulator treatment increased berry {size, weight, firmness}.
Intervention effect Growth regulator treatment increased total yield.
Intervention effect Growth regulator treatment decreased total soluble solids {degrees brix}.
Intervention effect Growth regulator treatment increased titratable acidity.
Intervention effect The sixth treatment gave the highest production.
Intervention effect The sixth treatment gave the best possible quality.
Intervention effect The sixth treatment did not delay harvest.
Intervention effect Treatments 1 through 5 had increasing TSS relative to the sixth treatment.
Intervention effect Treatments 1 through 5 had lesser berry (size, weight, firmness) relative to the sixth treatment.
Intervention effect Treatments 1 through 5 had reducing yield relative to the sixth treatment.
Intervention effect Treatments 7 and 8 increasing berry ( size , weight , firmness) relative to the sixth treatment.
Intervention effect Treatments 7 and 8 lesser TSS relative to the sixth treatment.
Intervention effect Treatments 7 and 8 delay harvest relative to the sixth treatment.
Intervention effect Treatments 7 and 8 decreasing quality relative to the sixth treatment.
Recommendation The authors conclude that sixth treatment is the most advantageous for yield and quality under these conditions.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Limonene content fell from 14.36% before frost to 10.15% after frost.

Taxon: Aloysia triphyllaAloysia triphyllat0
Treatment: froste0
Outcome: limonenee0
Direction: decreaseinferrede0
Value: 10.15%e0
Qualifier: 14.36%e0
Comparator: beforee0

Verbatim

e0
“limonene was observed to be most sensitive to frost, accounting for 14.36% of essential oil content before and 10.15% after frost.”
✓ located verbatim in the source · abstract, characters 912–1042

t0
“Aloysia triphylla”
✓ located verbatim in the source · title, characters 44–61

Title

Effect of frost on yield and composition of Aloysia triphylla essential oil

Schmidt Denise; Otomar Caron Braulio; Prochnow Daiane; et al. Journal of Medicinal Plants Research 2016. doi:10.5897/jmpr2015.6016

Other claims from this paper (2)

Intervention effect Essential oil yield increased from 0.162% before frost to 0.187% after frost.
Intervention effect Essential oil composition was largely unaffected by frost.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SDI reduced irrigation water usage by 30%.

Taxon: PersimmonDiospyrost0
Treatment: SDIe0
Outcome: irrigation water usagee0
Direction: reductione0
Value: 30%e0

Not reportedComparator

Verbatim

e0
“SDI achieved a 30% reduction in irrigation water usage without impacting on the marketable yield, but it also caused a decrease in unit fruit weight.”
✓ located verbatim in the source · abstract, characters 883–1032

t0
“Persimmon (Diospyros kaki Thunb.) Trees”
✓ located verbatim in the source · title, characters 81–120

Title

Effect of Deficit Irrigation on Agronomic and Physiological Performance of Young Persimmon (Diospyros kaki Thunb.) Trees

Rossana Porras-Jorge; José Mariano Aguilar; Carlos Baixauli; et al. Agronomy 2025. doi:10.3390/agronomy15071671

Other claims from this paper (13)

Mechanism Mild water stress reduced transpiration through stomatal closure.
Intervention effect RDI saved 11–16% of irrigation water.
Intervention effect RDI minimized fruit drop.
Intervention effect RDI increased the number of fruits per tree.
Intervention effect RDI raised marketable yield.
Intervention effect RDI reduced unit fruit weight.
Intervention effect SDI did not affect marketable yield.
Intervention effect SDI decreased unit fruit weight.
Intervention effect RDI increased water productivity mainly through higher yields.
Intervention effect SDI improved water productivity mainly by reducing irrigation applied.
Recommendation The authors recommend both irrigation strategies for Rojo Brillante persimmons.
Recommendation The authors especially recommend RDI with lower fruit loads.
Recommendation The authors recommend SDI when water availability is limited.

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“yield decrease”

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