Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The decrease in F′v/F′m and qP explains the decrease in the actual quantum yield of PSII electron transport in senescing wheat leaves

Taxon: wheatTriticum aestivume0
Outcome: actual quantum yield of PSII electron transporte3
Qualifier: decrease in bothe3

Verbatim

e0
“Analyses of chlorophyll fluorescence were undertaken to investigate the alterations in photosystem II (PSII) function during senescence of wheat ( Triticum aestivum L. cv. Shannong 229) leaves”
✓ located verbatim in the source · abstract, characters 0–192

e3
“The decrease in both F' v /F' m and q P explained the decrease in the actual quantum yield of PSII electron transport”
✓ located verbatim in the source · abstract, characters 986–1103

Title

Changes in photosystem II function during senescence of wheat leaves

Congming Lu; Jianhua Zhang Physiologia Plantarum 1998. doi:10.1034/j.1399-3054.1998.1040212.x

Other claims from this paper (8)

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The decrease in yield and crop-load under foliar sprays is presumably due to greater preharvest fruit drop

Taxon: apple treesMalus domesticae1
Outcome: decrease in yield and crop-loade2
Qualifier: a greater preharvest fruit drope2

Verbatim

e1
“'Golden Reinders' apple trees”
✓ located verbatim in the source · abstract, characters 30–59

e2
“resulted in a decrease in yield and crop-load, presumably due to a greater preharvest fruit drop”
✓ located verbatim in the source · abstract, characters 334–430

Title

STUDY OF THE EFFECT OF NITROGEN FERTILIZATION SUPPLIED BY FOLIAR SPRAYS OR BY FERTIGATION IN APPLE TREES - PRELIMINARY RESULTS

J.L. Parés; E. Monge; A. Blanco; et al. Acta Horticulturae 2010. doi:10.17660/actahortic.2010.868.37

Other claims from this paper (7)

Intervention effect Soil applications of extra nitrogen had no effect on growth and cropping parameters of apple trees compared with control trees
Intervention effect Foliar sprays of extra nitrogen promoted shoot growth and leaf extension of apple trees compared with control trees
Intervention effect Foliar sprays of extra nitrogen decreased yield and crop-load of apple trees compared with control trees
Observation Phytotoxic damage was observed on the leaves of apple trees under overfertilization
Observation Net photosynthesis of apple trees remained unaffected by overfertilization
Intervention effect Overfertilization did not change the mineral element concentration of apple trees
Intervention effect Foliar spray treatment increased leaf N concentration of apple trees only late in the growing season

Mechanismauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Yield decrease in onion results from reduced photosynthetic area, producing smaller bulbs of poorer quality (review statement).

Taxon: OnionAllium cepae0
Outcome: Yield decreasee5
Qualifier: due to a reduced photosynthetic areae5

Verbatim

e0
“Onion (Allium cepa L.) is one of the most important vegetable species grown worldwide”
✓ located verbatim in the source · abstract, characters 0–85

e5
“Yield decrease occurs due to a reduced photosynthetic area, which leads to the formation of smaller bulbs of poorer quality”
✓ located verbatim in the source · abstract, characters 308–431

Title

Stemphylium vesicarium (wallr.) E.G. Simmons: An onion plant pathogen and options for suppression

Ana Takac; Slavica Vukovic Pesticidi i fitomedicina 2023. doi:10.2298/pif2302043t

Other claims from this paper (5)

Mechanismhypothesisoriginal resultnegativebasis n/a

Claim · model-written summary

The authors suggest increased yield per vine caused the decrease in skin catechin.

Taxon: Vitis vinifera L.Vitis viniferat0
Outcome: skin catechine1
Qualifier: increased yield per vinee0

Verbatim

e0
“it is suggested that the decrease was caused by increased yield per vine”
✓ located verbatim in the source · abstract, characters 601–673

e1
“An increase in node number linearly decreased skin catechin”
✓ located verbatim in the source · abstract, characters 536–595

t0
“Vitis vinifera L.”
✓ located verbatim in the source · title, characters 89–106

Title

Pruning effect on content of quercetin and catechin in berry skins of cv. Blaufränkisch (Vitis vinifera L.)

ZORAN BESLIC; SLAVICA TODIC; VELE TESEVIC; et al. TURKISH JOURNAL OF AGRICULTURE AND FORESTRY 2010. doi:10.3906/tar-0909-411

Other claims from this paper (3)

Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The warming-related yield decrease is partly attributed to increased heat stress and shorter growth period.

Taxon: riceOryza sativae3
Outcome: decreasee4
Qualifier: increased heat stresses and shorter growth periode4

Verbatim

e3
“In rice production areas with the mean growing-season temperature at 12–14°C and above 20°C, a 1°C growing-season warming decreased rice yield by roughly 4%”
✓ located verbatim in the source · abstract, characters 841–997

e4
“This decrease was partly attributed to increased heat stresses and shorter growth period under the warmer climate”
✓ located verbatim in the source · abstract, characters 999–1112

Title

Geographic Variation of Rice Yield Response to Past Climate Change in China

Jie YANG; Wei XIONG; Xiao-guang YANG; et al. Journal of Integrative Agriculture 2014. doi:10.1016/s2095-3119(14)60803-0

Other claims from this paper (6)

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The decrease in cabbage dry weight and head yield under low light is attributed to lower sugar content and lower 14CO2 assimilation.

Taxon: cabbageBrassica oleracea var. capitatat0
Outcome: plant dry weight and the cabbage-head yielde3
Qualifier: decrease in the sugar content and in the rate of 14CO2 assimilatione3

Verbatim

t0
“cabbage-head formation”
✓ located verbatim in the source · title, characters 30–52

e3
“As the light intensity decreased, so the plant dry weight and the cabbage-head yield decreased, resulting from a decrease in the sugar content and in the rate of 14CO2 assimilation”
✓ located verbatim in the source · abstract, characters 576–756

Title

The role of macronutrients in cabbage-head formation

Tetsuo Hara; Yoji Sonoda Soil Science & Plant Nutrition 1981. doi:10.1080/00380768.1981.10431270

Other claims from this paper (11)

Intervention effect Increasing nitrogen supply from 5 to 50 ppm N increased cabbage plant dry weight.
Intervention effect Nitrogen supply at 500 ppm N decreased cabbage plant dry weight.
Intervention effect Cabbage grown at 50 ppm N had the highest sugar content.
Intervention effect Cabbage grown at 50 ppm N had the highest rate of 14CO2 assimilation.
Mechanism Growth at 50 ppm N explains efficient cabbage-head development through the highest sugar content.
Intervention effect Decreasing light intensity decreased cabbage plant dry weight and cabbage-head yield.
Intervention effect Low light intensity made the 15NO3-N uptake by cabbage smaller than high light intensity.
Intervention effect Low light impaired incorporation of 15N into the 80% ethanol-insoluble fraction of the cabbage head.
Association The later the growth stage at which 14CO2 was assimilated, the greater the 14C-retention percentage at harvest.
Association The later the growth stage at which 14CO2 was assimilated, the greater the distribution of 14C into the cabbage head.
Association The 14C-retention percentage decreased with increased nitrogen supply or decreased light intensity in cabbage.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The authors attribute the decrease in yield to reduced root indole-3-acetic acid (IAA) content, which impeded adventitious root formation.

Taxon: PotatoSolanum tuberosumt0
Compound: indole-3-acetic acid (IAA)e1
Outcome: decrease in yielde1
Qualifier: impeded the formation of ARe1

Verbatim

t0
“Potato”
✓ located verbatim in the source · title, characters 62–68

e1
“The decrease in yield was attributed to the reduction of root indole-3-acetic acid (IAA) content, which impeded the formation of AR”
✓ located verbatim in the source · abstract, characters 539–670

Title

Vanillin, a Newly Discovered Autotoxic Substance in Long-Term Potato Continuous Cropping Soil, Inhibits Plant Growth by Decreasing the Root Auxin Content and Reducing Adventitious Root Numbers

Haiyan Ma; Junji Li; Aihua Luo; et al. Journal of Agricultural and Food Chemistry 2023. doi:10.1021/acs.jafc.3c05027

Other claims from this paper (6)

Association A 10-year field experiment found a negative correlation between potato yield and the number of continuous cropping years.
Association The substantial reduction in adventitious root numbers was primarily inhibited by soil vanillin accumulation.
Intervention effect Vanillin had a more pronounced inhibitory effect on potato yield than the commonly reported ferulic acid and p-hydroxybenzoic acid.
Intervention effect Exogenous IAA increased root IAA content under vanillin stress.
Intervention effect Exogenous IAA stimulated adventitious root formation under vanillin stress.
Intervention effect Exogenous IAA ultimately led to an increase in potato yield under vanillin stress.

Mechanismhypothesisoriginal resultnegativebasis n/a

Claim · model-written summary

Photosynthetic damage may result in a possible decrease in growth and yield of olive plants attacked by Saissetia oleae.

Taxon: Olea europaeaOlea europaeat0
Outcome: decrease in growth and yielde7
Qualifier: damages to the photosynthetic apparatuse7

Verbatim

t0
“Olea europaea”
✓ located verbatim in the source · title, characters 25–38

e7
“The increase of initial fluorescence, reduction of maximum photochemical quantum yield of photosystem II/maximum fluorescence, and electron transport rate in some cultivars of O. europaea attacked by S. oleae indicate damages to the photosynthetic apparatus, resulting in a possible decrease in growth and yield of the plants.”
✓ located verbatim in the source · abstract, characters 1563–1889

Title

Physiological Aspects of Olea europaea (Oleaceae) Attacked by Saissetia oleae (Hemiptera: Coccidae)

Marinalva Martins dos Santos; Letícia Alves Carvalho Reis; Evander Alves Ferreira; et al. Florida Entomologist 2022. doi:10.1653/024.105.0305

Other claims from this paper (6)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The grain yield decrease with changed sowing depth was due to fewer panicles per square meter.

Taxon: oatAvena sativat0
Outcome: grain yielde5
Qualifier: due to lower number of panicles per square metere5

Verbatim

t0
“naked and hulled oat”
✓ located verbatim in the source · title, characters 82–102

e5
“Like in Budzyñski et al. (1999) the changes of the sowing depth in comparison with recommended depth 3cm caused that the grain yield was decrease up to 10% due to lower number of panicles per square meter”
✓ located verbatim in the source · abstract, characters 1199–1403

Title

The effect of depth and sowing time on germination, yield and yield components of naked and hulled oat

Krzysztof Pacewicz; S. Stankowski Jukuri (Natural Resources Institute Finland (Luke)) 2004

Other claims from this paper (14)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors infer that lack of nitrogen in leaves could decrease net photosynthetic capacity.

Taxon: riceOryza sativat0
Outcome: net photosynthetic capacitye1
Qualifier: lack of nitrogen in leavese1

Verbatim

e1
“which indicates that the lack of nitrogen in leaves could decrease the net photosynthetic capacity”
✓ located verbatim in the source · abstract, characters 975–1073

t0
“yield of rice”
✓ located verbatim in the source · title, characters 82–95

Title

Effects of different fertilization on nitrogen uptake,net photosynthesis rate and yield of rice

Chen Weicai 2010

Other claims from this paper (10)

Intervention effect Organic materials returning fertilization increased tillers, panicles per unit area and LAI of rice.
Intervention effect Organic materials returning fertilization significantly improved rice grain yield.
Intervention effect Under NPK fertilization, leaf nitrogen content of early rice declined sharply after the tillering stage.
Intervention effect Earing fertilization of late rice could increase nitrogen uptake in the late period.
Intervention effect Organic materials returning fertilization could improve nitrogen uptake in the mid-late period.
Intervention effect The effect of organic materials returning fertilization was obviously better on early rice than on late rice.
Observation Nitrogen contents in leaves and grains of early rice were higher than those of late rice.
Association In early rice, net photosynthetic rate was significantly positively correlated with leaf nitrogen content (r=0.664).
Association In late rice, net photosynthetic rate was significantly positively correlated with leaf nitrogen content (r=0.704).
Intervention effect At a middle fertilizing level, organic materials returning fertilization could reduce NPK use by more than 1/3.

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics