Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Root number in rice tended to decrease on average across all extension directions.

Taxon: Oryza sativaOryza sativat0
Outcome: 根数e6
Direction: 減少する傾向e6
Qualifier: 各伸長方向にわたって平均的にe6

Verbatim

t0
“rice plants (Oryza sativa L.)”
✓ located verbatim in the source · title, characters 63–92

e6
“伸長根の伸長方向には遮光処理による影響は認められなかったが, 各伸長方向にわたって平均的に根数が減少する傾向が認められた”
✓ located verbatim in the source · abstract, characters 367–427

Title

Effect of shading on root system morphology and grain yield of rice plants (Oryza sativa L.). II. An analysis on primary roots.

Masahiro MAWAKI; Jiro HARADA; Tadatoshi IWATA; et al. Japanese Journal of Crop Science 1990. doi:10.1626/jcs.59.95

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

The decrease in Y′ contributes to growth promotion in comparable magnitude to the increase in physiological extensibility.

Taxon: cowpeaVigna unguiculatat0
Outcome: contribution of this decreasee3
Comparator: increase in Φe3

Not reportedDirection

Verbatim

t0
“Segments of Cowpea Hypocotyl”
✓ located verbatim in the source · title, characters 102–130

e3
“The contribution of this decrease is comparable in magnitude to that of the increase in Φ with respect to the promotion of growth”
✓ located verbatim in the source · abstract, characters 1199–1328

Title

Effects of Auxin and Anoxia on the Cell Wall Yield Threshold Determined by Negative Pressure Jumps in Segments of Cowpea Hypocotyl

Hisashi Okamoto; Chiyomi Miwa; Tadashi Masuda; et al. Plant and Cell Physiology 1990. doi:10.1093/oxfordjournals.pcp.a077979

Other claims from this paper (3)

Intervention effect Auxin reduced the adjustable yield threshold Y′ by 40–80 kPa in cowpea hypocotyl segments.
Intervention effect Once decreased, Y′ was not affected by anoxia.
Method / resource The negative pressure jump technique determines the adjustable yield threshold in vivo, comparing turgor reduction hydraulically rather than osmotically.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cereal rye cover crops tended to slightly lower broccoli yield versus winter fallow.

Taxon: broccoliBrassica oleracea var. italicae0
Treatment: cereal rye cover cropse0
Outcome: broccoli yieldse0
Direction: decreasee0
Comparator: winter fallowe0

Verbatim

e0
“cereal rye cover crops to cause a small decrease in broccoli yields as compared to winter fallow”
✓ located verbatim in the source · abstract, characters 1468–1564

Title

Winter Cover Crops and Nitrogen Management in Sweet Corn and Broccoli Rotations

John Z. Burket; Delbert D. Hemphill; Richard P. Dick HortScience 1997. doi:10.21273/hortsci.32.4.664

Other claims from this paper (3)

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Salt stress before and during spikelet development did not decrease the yield potential of individual Probred spikes.

Taxon: wheatTriticum aestivume0
Material: Probrede6
Treatment: salt stress prior to and during spikelet developmente6
Outcome: yield potential of individual spikese6
Comparator: nonsaline control treatmente2

Not reportedDirection

Verbatim

e0
“on two wheat species ( Triticum aestivum L. ‘Probred’ and T. turgidum L. ‘Aldura’)”
✓ located verbatim in the source · abstract, characters 317–399

e2
“were compared to a nonsaline control treatment at −0.05 MPa”
✓ located verbatim in the source · abstract, characters 714–773

e6
“salt stress prior to and during spikelet development significantly decreased the yield potential of individual spikes of Aldura, but not of the more tolerant Probred”
✓ located verbatim in the source · abstract, characters 1463–1628

Title

Spike and Leaf Development of Sal‐Stressed Wheat

E. V. Maas; C. M. Grieve Crop Science 1990. doi:10.2135/cropsci1990.0011183x003000060031x

Other claims from this paper (14)

Intervention effect Salt stress accelerated development of the shoot apex on the mainstem.
Intervention effect Salt stress decreased the number of spikelet primordia.
Intervention effect Under salt stress at −0.65 MPa, terminal spikelet stage was 12 and 18 d sooner in Aidurand and Probred, respectively, than at −0.05 MPa.
Intervention effect Under salt stress, anthesis occurred earlier than in the nonsaline control.
Intervention effect Under salt stress, tillering was delayed by 3 to 4 d.
Intervention effect Osmotic potential −0.45 MPa reduced seed yield of Aldura by 38% relative to −0.05 MPa.
Intervention effect Osmotic potential −0.65 MPa reduced seed yield of Aldura by 54% relative to −0.05 MPa.
Intervention effect Osmotic potential −0.45 MPa reduced seed yield of Probred by 7% relative to −0.05 MPa.
Intervention effect Osmotic potential −0.65 MPa reduced seed yield of Probred by 43% relative to −0.05 MPa.
Mechanism The seed yield decreases under salt stress resulted from fewer spikes per plant and fewer kernels per spike.
Intervention effect Salt stress increased the phyllochron.
Intervention effect Salt stress reduced the final number of leaves initiated on the main stem.
Intervention effect Salt stress before and during spikelet development significantly decreased the yield potential of individual Aldura spikes.
Intervention effect Salt stress decreased the yield potential of both species, mainly by reducing the number of tiller spikes.

Observationauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Trace element toxicity can decrease crop yield and impair quality.

Taxon: cropse1
Outcome: yield and/or impaired crop qualitye0
Direction: decreasede0

Verbatim

e0
“Toxicities can result in decreased yield and/or impaired crop quality.”
✓ located verbatim in the source · abstract, characters 970–1040

e1
“Nutrient toxicities in crops are more frequent for manganese (Mn) and boron (B) than for other nutrients.”
✓ located verbatim in the source · abstract, characters 389–494

e2
“Toxicity levels of trace elements range from 20 to 50 μg g‐1 for copper (Cu) and B to several hundred μg g‐1 for Mn, molybdenum (Mo) and zinc (Zn).”
✓ located verbatim in the source · abstract, characters 1041–1188

Title

Trace element toxicity relationships to crop production and livestock and human health: implications for management

Umesh C. Gupta; Subhas C. Gupta Communications in Soil Science and Plant Analysis 1998. doi:10.1080/00103629809370045

Other claims from this paper (11)

Observation Manganese and boron toxicities are more frequent in crops than other nutrient toxicities.
Observation Manganese toxicity occurs on acid soils.
Observation Boron toxicity occurs in irrigated regions whose waters are exceptionally high in boron.
Observation Other nutrient toxicities occur after large nutrient additions in wastes.
Observation Crops near mines and smelters are prone to nutrient toxicity.
Observation Crop toxicity symptoms include leaf burning, chlorosis and yellowing.
Observation Copper and boron toxicity levels range from 20 to 50 μg g‐1.
Observation Manganese, molybdenum and zinc toxicity levels reach several hundred μg g‐1.
Intervention effect Liming can reduce toxicity of nutrients other than molybdenum.
Recommendation Recommended fertilizer rates and controlled waste use should reduce metal loading and crop nutrient toxicity.
Recommendation The authors recommend crop species and genotypes less susceptible to toxicity where toxicity is suspected.

Mechanismauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Authors attribute the greater PSII efficiency decrease in resistant leaf discs to photoinhibitory damage.

Taxon: Brassica napus LBrassica napust0
Material: resistant leaf discse0
Outcome: PSII efficiencye0
Qualifier: photoinhibitory damagee0

Verbatim

e0
“differential decrease in PSII efficiency in resistant leaf discs is caused by photoinhibitory damage”
✓ located verbatim in the source · abstract, characters 850–950

t0
“Brassica napus L”
✓ located verbatim in the source · title, characters 99–115

Title

High Light-Induced Reduction and Low Light-Enhanced Recovery of Photon Yield in Triazine-Resistant Brassica napus L

Jonathan J. Hart; Alan Stemler PLANT PHYSIOLOGY 1990. doi:10.1104/pp.94.3.1301

Other claims from this paper (2)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Spring forage removal decreased grain yield by as much as 53% across the studied cereals.

Taxon: small grain cerealst0
Treatment: spring forage removale0
Outcome: grain yielde0
Direction: decreasee0
Value: 53%e0

Not reportedComparator

Verbatim

t0
“small grain cereals”
✓ located verbatim in the source · title, characters 20–39

e0
“spring forage removal on grain yield ranged from small yield increases (in the triticale and barley genotypes that otherwise lodged) to a 53% decrease”
✓ located verbatim in the source · abstract, characters 177–327

Title

Triticale and other small grain cereals for forage and grain in Mediterranean conditions

C. ROYO; E. MONTESINOS; J. L. MOLINA‐CANO; et al. Grass and Forage Science 1993. doi:10.1111/j.1365-2494.1993.tb01831.x

Other claims from this paper (11)

Intervention effect Spring forage removal caused small grain yield increases in lodging triticale genotypes.
Intervention effect Spring forage removal caused small grain yield increases in lodging barley genotypes.
Association Spikes developed after early cutting were a key factor influencing cereal grain yield.
Observation Complete triticale types were better for dual purpose than the substituted type.
Observation The best triticale produced 3 t forage dry matter per hectare on average.
Observation The best triticale produced 684 kg crude protein per hectare.
Observation The best triticale subsequently produced 4–3 t grain per hectare.
Intervention effect Clipping did not reduce triticale grain yield or spikes per plant in the best instance.
Intervention effect A forage cut reduced triticale plant height and lodging.
Intervention effect Late cutting further increased days to heading in triticale.
Intervention effect Cutting had no observed effect on days to heading in barley.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Degeneration of rachis-branches and of spikelets does not explain the decrease in spikelet numbers per panicle.

Taxon: riceOryza sativat0
Outcome: degeneration of rachis-branchese3
Qualifier: nor that of spikeletse3

Verbatim

e3
“not by the degeneration of rachis-branches nor that of spikelets”
✓ located verbatim in the source · abstract, characters 581–645

t0
“rice [Oryza sativa] yield in warmer regions of Japan”
✓ located verbatim in the source · title, characters 74–126

Title

Effects of nitrogen topdressing at the neck-node differentiation stage on rice [Oryza sativa] yield in warmer regions of Japan

R. Ida 1997

Other claims from this paper (4)

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing nutsedge density significantly reduced cotton seed yield in both study years.

Taxon: cottonGossypium hirsutume0
Treatment: increasing nutsedge densitye0
Outcome: cotton seed yielde0
Direction: decreasee0

Verbatim

e0
“increasing nutsedge density caused a significant linear decrease in cotton seed yield in both 1993 (p=0.03) and 1994 (p=0.002).”
✓ located verbatim in the source · abstract, characters 424–551

Title

The Interaction and Effects of Soil Moisture Regime and Yellow Nutsedge (Cyperus esculentus) Density on Cotton (Gossypium hirsutum) Growth

Jody E. Moffett; William B. McCloskey; S. H. Husman; et al. UA Campus Repository (The University of Arizona) 1995

Other claims from this paper (6)

Association The highest nutsedge density reduced cotton yield by 13.5 percent in 1993.
Association The highest nutsedge density reduced cotton yield by 15.5 percent in 1994.
Association Cotton stem biomass increased significantly with soil moisture.
Association Cotton seed yield tended to increase with soil moisture, significantly in 1994.
Intervention effect The wet irrigation treatment gave the highest cotton biomass and yield.
Association Moisture availability did not significantly modify cotton yield losses from nutsedge competition.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High light caused a greater decrease in PSII activity in resistant Brassica napus.

Taxon: Brassica napus LBrassica napust0
Material: resistant plantse0
Treatment: high PFD exposuree0
Outcome: photosystem II (PSII) activitye0
Direction: greater decreasee0
Comparator: susceptible leaf discse1

Verbatim

e0
“high PFD exposure results in a greater decrease in photosystem II (PSII) activity in resistant plants”
✓ located verbatim in the source · abstract, characters 683–784

t0
“Brassica napus L”
✓ located verbatim in the source · title, characters 99–115

e1
“resistant and susceptible leaf discs”
✓ located verbatim in the source · abstract, characters 568–604

Title

High Light-Induced Reduction and Low Light-Enhanced Recovery of Photon Yield in Triazine-Resistant Brassica napus L

Jonathan J. Hart; Alan Stemler PLANT PHYSIOLOGY 1990. doi:10.1104/pp.94.3.1301

Other claims from this paper (2)

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics