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“yield decrease”

16,663 matches

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plus 3,107 non-evaluative

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plus 26 earlier · 1910s–1940s

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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.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Captafol did not decrease potato yield.

Taxon: potatoSolanum tuberosumt0
Treatment: captafole0
Outcome: yielde0
Direction: did not decreasee0
Comparator: quintozenee0

Verbatim

e0
“The most effective chemical was captafol, which was as effective as quintozene and, unlike quintozene, did not decrease yield.”
✓ located verbatim in the source · abstract, characters 566–692

t0
“potato”
✓ located verbatim in the source · title, characters 45–51

Title

Glasshouse tests of chemicals for control of potato common scab

A. H. MCINTOSH Annals of Applied Biology 1973. doi:10.1111/j.1744-7348.1973.tb01324.x

Other claims from this paper (5)

Intervention effect Many tested chemicals failed to reduce potato scab incidence.
Intervention effect Many tested chemicals decreased potato tuber yield.
Intervention effect Captafol controlled potato scab as effectively as quintozene.
Intervention effect Captan was ineffective against potato scab.
Intervention effect Folpet was ineffective against potato scab.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Varsha had a 13% yield decrease.

Taxon: okraAbelmoschus esculentust0
Material: Varshae0
Outcome: yielde0
Direction: decreasee0
Value: 13%e0

Verbatim

e0
“the minimum decrease in yield of 8 and 13% was recorded in BO-1 and Varsha”
✓ located verbatim in the source · abstract, characters 1167–1241

t0
“okra”
✓ located verbatim in the source · title, characters 33–37

Title

Morpho-physiological response of okra (Abelmoschus esculentum L.) genotypes to moisture stress during reproductive stage

R. M. Bhatt; N.K. Srinivasa Rao Indian Journal of Horticulture 2005

Other claims from this paper (12)

Intervention effect Moisture stress reduced relative water content from 72–82% in irrigated plants to 66–75%.
Observation BO-1 had the maximum relative water content during stress.
Intervention effect Stress reduced leaf area across genotypes by 25–70%.
Observation Pusa Makhamali had the greatest reduction in photosynthesis under stress, followed by IIHR-1685 and Arka Anamika.
Observation BO-1 maintained photosynthesis at 11.5 µmol m−2 s−1 after 10 days of stress.
Observation Varsha maintained photosynthesis at 9.7 µmol m−2 s−1 after 10 days of stress.
Observation Arka Abhay maintained photosynthesis at 8.8 µmol m−2 s−1 after 10 days of stress.
Observation Photosynthetic rate recovered significantly after stress release.
Intervention effect Further growth was considerably affected after stress release.
Intervention effect Moisture stress significantly decreased per-plant yield.
Observation IIHR-1685 had the greatest yield reduction.
Observation BO-1 had an 8% yield decrease.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each post-flowering frost was associated with a 5% yield decrease.

Taxon: chickpeaCicer arietinumt0
Treatment: post-flowering froste0
Outcome: yielde0
Direction: decreasee0
Value: 5%e0

Verbatim

e0
“Each post-flowering frost was associated with a 5% decrease and a low-temperature day with a 1% decrease in yield”
✓ located verbatim in the source · abstract, characters 943–1056

t0
“chickpea”
✓ located verbatim in the source · title, characters 104–112

Title

Relationships of frequencies of extreme low temperatures with grain yield of some Australian commercial chickpea cultivars

Yashvir S. Chauhan; Sam Allard; Steve Krosch; et al. International Journal of Biometeorology 2022. doi:10.1007/s00484-022-02344-9

Other claims from this paper (7)

Observation Mean chickpea yield varied from 1 to 3 t/ha.
Association Yield was negatively associated with post-flowering frosts.
Association Yield was negatively associated with low-temperature days.
Association Yield was positively associated with pre-flowering frosts.
Association Each low-temperature day was associated with a 1% yield decrease.
Association Cultivar by site interaction was significant only in experiments with six cultivars.
Recommendation Management and breeding to overcome post-flowering cold are expected to increase and stabilize yield.

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.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Susceptible Line 37-03 had 47.9% grain yield decrease.

Taxon: Bread WheatTriticum aestivumt0
Material: Line 37-03e0
Outcome: grain yielde0
Direction: decreasee0
Value: 47.9%e0

Verbatim

t0
“Bread Wheat”
✓ located verbatim in the source · title, characters 71–82

e0
“susceptible Line 37-03 recording a 47.9% decrease in grain yield”
✓ located verbatim in the source · abstract, characters 807–871

Title

Yield Loss Associated with Different Levels of Stem Rust Resistance in Bread Wheat

Tegwe Soko; Cornelia M. Bender; Renée Prins; et al. Plant Disease 2018. doi:10.1094/pdis-02-18-0307-re

Other claims from this paper (10)

Observation AUDPC distinguished moderately susceptible SC Stallion at 515.
Observation SC Nduna had AUDPC 995.
Observation Line 37-07 had AUDPC 1634.
Observation APR variety W1406 had AUDPC 256, above ASR SC Sky mean 25.
Observation APR variety W6979 had AUDPC 399, above ASR SC Sky mean 25.
Observation APR variety Kingbird had AUDPC 209, above ASR SC Sky mean 25.
Observation PTKST caused mean yield loss of 21.3% across protected and unprotected plots.
Observation APR W1406 had yield reduction of 19.5%.
Observation ASR SC Sky had mean yield loss of 6.4%.
Observation APR reduced effects of stem rust on yield but protected less than effective ASR under high disease pressure.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Edible-part yield tended to decrease in clubroot-infested Hanana plots.

Taxon: Hananat0
Outcome: yield of edible partse0
Direction: decreasee0
Setting: infested plotse0

Verbatim

e0
“The yield of edible parts showed a tendency of decrease in the infested plots”
✓ located verbatim in the source · abstract, characters 804–881

t0
“Hanana (flower nabana)”
✓ located verbatim in the source · title, characters 43–65

Title

Impact of clubroot disease on the yield of Hanana (flower nabana)

Gento Tsuji; Yuji Kamibayashi; Yuna Hotta; et al. Annual Report of The Kansai Plant Protection Society 2019. doi:10.4165/kapps.61.129

Other claims from this paper (3)

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

PP333 could increase or decrease yield.

Taxon: soybeanGlycine maxt0
Treatment: PP333e0
Outcome: yielde0
Direction: increase or decreasee0

Not reportedComparator

Verbatim

e0
“PP333 applied could lead to plant height reduction, leaf smaller, yield increase or decrease”
✓ located verbatim in the source · abstract, characters 1073–1168

t0
“soybean”
✓ located verbatim in the source · title, characters 49–56

Title

Effect of culture factors on growth and yield of soybean II. Effect of fertilizer application, watering, growth regulate measures on yield

Wang Wen-xiu Chinese Journal of Oil Crop Scieves 2003

Other claims from this paper (11)

Intervention effect Seedling-stage fertilizer and watering promoted middle organ growth.
Intervention effect Flowering-stage fertilizer and watering increased upper organ growth.
Intervention effect Nitrogen and phosphorus fertilizers enhanced nutrient absorption in corresponding growth-centre organs.
Intervention effect Nitrogen fertilizer increased soybean nitrogen content.
Intervention effect Nitrogen fertilizer increased soybean phosphorus content.
Intervention effect Nitrogen fertilizer increased soybean potassium content.
Association Later fertilizer application tended to raise seed protein content.
Intervention effect Fertilization from initial flowering to 10 days later produced 15.6%～24.2% higher yield than the check.
Intervention effect PP333 reduced plant height.
Intervention effect PP333 made leaves smaller.
Intervention effect Huafu increased yield by 5.8%.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

In 2023 there was a decrease in yield compared with near-normal precipitation in 2021.

Taxon: cornZea mays subsp. mayst0
Outcome: yielde1
Direction: decreasee1

Verbatim

e1
“there was a decrease in yield”
✓ located verbatim in the source · abstract, characters 1293–1322

t0
“corn”
✓ located verbatim in the source · title, characters 35–39

Title

Cover crops did not change optimal corn nitrogen rate over three variable precipitation seasons in the Western Corn Belt

Tauana Ferreira de Almeida; Lucas Pecci Canisares; Emily Robinson; et al. Agronomy Journal 2025. doi:10.1002/agj2.70129

Other claims from this paper (7)

Intervention effect Cover crops did not decrease corn grain yield at the AONR.
Intervention effect Cover crops did not increase the AONR compared with the no-cover crop treatment.
Observation In 2021, with near-normal precipitation, corn yield at the AONR and the AONR were the highest of the three years.
Observation In 2022, with about half the 30-year average rainfall, yield at the AONR decreased across treatments.
Intervention effect In 2023, cover crop treatments had no significant effect on the AONR.
Mechanism Weather was the dominant factor driving the AONR.
Recommendation The results do not support the need for higher N rates after winter cover crops.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Maize yield tended to decrease above 32°C.

Taxon: MaizeZea mayse0
Outcome: Maize yielde0
Direction: decreasee0
Qualifier: temperatures exceed 32°Ce0
Setting: Upper East regione0

Verbatim

e0
“Maize yield in the Upper East region tends to decrease when temperatures exceed 32°C”
✓ located verbatim in the source · abstract, characters 774–858

Title

Marginal Impact of climate variability on crop yields in Ghana

Samuel Asante Gyamerah; Victor Owusu; Stephen Oppong Kwakye Scientific African 2024. doi:10.1016/j.sciaf.2024.e02314

Other claims from this paper (3)

Association Maximum and minimum temperature were the strongest climate indicators for maize yield.
Association Maize yield tended to increase around 24°C.
Association Across studied districts, maize yield tended to be maximal around 24°C.

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