Search claims · PlantClaims

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Lr34 may carry a slight grain yield penalty in disease-free environments.

Taxon: wheatTriticum aestivume0
Gene: Lr34e1
Outcome: yield penaltye1
Direction: decreaseinferrede1
Setting: disease free environmentse1

Verbatim

e0
“Leaf rust, caused by Puccinia recondita Roberge ex Desmaz. f. sp. tritici , is an important disease of wheat ( Triticum aestivum L.)”
✓ located verbatim in the source · abstract, characters 0–132

e1
“the presence of Lr34, which is linked with leaf tip necrosis of adult plants, may carry a slight yield penalty in some disease free environments”
✓ located after whitespace/quote normalisation · abstract, characters 1552–1697

Title

Effect of Leaf Rust Resistance Gene Lr34 on Grain Yield and Agronomic Traits of Spring Wheat

R. P. Singh; J. Huerta‐Espino Crop Science 1997. doi:10.2135/cropsci1997.0011183x003700020014x

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Dry matter yield in the second and third harvest years was about half that of the first year.

Taxon: Setaria sphacelata, Digitaria setivalva, Pennisetum purpureum, Panicum maximum and Brachiaria decumbensMegathyrsus maximusCenchrus purpureusSetaria sphacelataUrochloa decumbensDigitaria milanjianae0
Outcome: DM yieldse2
Direction: decreaseinferrede2
Value: approximately halfe2

Verbatim

e0
“Setaria sphacelata, Digitaria setivalva, Pennisetum purpureum, Panicum maximum and Brachiaria decumbens”
✓ located verbatim in the source · abstract, characters 49–152

e2
“The DM yields in the second and third harvest years was approximately half that of the first year”
✓ located verbatim in the source · abstract, characters 376–473

Title

Dry matter yield and nutritive value of improved pasture species in Malaysia.

Waseem Hassan; R. H. Phipps; E. Owen Tropical Agriculture 1990

Other claims from this paper (4)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reed canarygrass seasonal yield after drought was 54% of irrigated controls.

Taxon: reed canarygrasse0
Treatment: periods of drought followed by well‐watered conditionse0
Outcome: Total season yieldse0
Direction: decreaseinferrede0
Value: 54e0
Comparator: irrigated controlse0

Verbatim

e0
“Total season yields of reed canarygrass, orchardgrass, smooth bromegrass, and timothy exposed to periods of drought followed by well‐watered conditions were 54, 60, 81, and 62%, respectively, of the irrigated controls”
✓ located verbatim in the source · abstract, characters 989–1206

Title

Drought Effects on Yield and Quality of Perennial Grasses in the North Central United States

C. C. Sheaffer; P. R. Peterson; M. H. Hall; et al. jpa 1992. doi:10.2134/jpa1996.0556

Other claims from this paper (19)

Intervention effect reed canarygrass droughted forage yield was 33% of control.
Intervention effect orchardgrass droughted forage yield was 37% of control.
Intervention effect smooth bromegrass droughted forage yield was 24% of control.
Intervention effect timothy droughted forage yield was 34% of control.
Observation Under drought, reed canarygrass yielded similarly to orchardgrass.
Observation Under drought, reed canarygrass yielded more than timothy and smooth bromegrass.
Intervention effect Orchardgrass seasonal yield after drought was 60% of irrigated controls.
Intervention effect Smooth bromegrass seasonal yield after drought was 81% of irrigated controls.
Intervention effect Timothy seasonal yield after drought was 62% of irrigated controls.
Intervention effect Drought increased leafiness in reed canarygrass, smooth bromegrass and timothy.
Intervention effect Drought increased crude protein in leaves, stems and whole forage of all species.
Intervention effect Drought lowered NDF and ADF in reed canarygrass and smooth bromegrass at all harvests.
Intervention effect Drought lowered NDF and ADF in orchardgrass and timothy at two of three harvests.
Association Increased leafiness and stem and leaf quality were associated with improved forage quality.
Intervention effect Drought reduced reed canarygrass and timothy persistence.
Intervention effect Drought had no effect on smooth bromegrass and orchardgrass persistence.
Observation Smooth bromegrass was the most persistent grass.
Observation Orchardgrass was the least persistent grass.
Observation The authors interpret reed canarygrass as among the most productive grasses in drought.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Smooth bromegrass seasonal yield after drought was 81% of irrigated controls.

Taxon: smooth bromegrassBromus inermise0
Treatment: periods of drought followed by well‐watered conditionse0
Outcome: Total season yieldse0
Direction: decreaseinferrede0
Value: 81e0
Comparator: irrigated controlse0

Verbatim

e0
“Total season yields of reed canarygrass, orchardgrass, smooth bromegrass, and timothy exposed to periods of drought followed by well‐watered conditions were 54, 60, 81, and 62%, respectively, of the irrigated controls”
✓ located verbatim in the source · abstract, characters 989–1206

Title

Drought Effects on Yield and Quality of Perennial Grasses in the North Central United States

C. C. Sheaffer; P. R. Peterson; M. H. Hall; et al. jpa 1992. doi:10.2134/jpa1996.0556

Other claims from this paper (19)

Intervention effect reed canarygrass droughted forage yield was 33% of control.
Intervention effect orchardgrass droughted forage yield was 37% of control.
Intervention effect smooth bromegrass droughted forage yield was 24% of control.
Intervention effect timothy droughted forage yield was 34% of control.
Observation Under drought, reed canarygrass yielded similarly to orchardgrass.
Observation Under drought, reed canarygrass yielded more than timothy and smooth bromegrass.
Intervention effect Reed canarygrass seasonal yield after drought was 54% of irrigated controls.
Intervention effect Orchardgrass seasonal yield after drought was 60% of irrigated controls.
Intervention effect Timothy seasonal yield after drought was 62% of irrigated controls.
Intervention effect Drought increased leafiness in reed canarygrass, smooth bromegrass and timothy.
Intervention effect Drought increased crude protein in leaves, stems and whole forage of all species.
Intervention effect Drought lowered NDF and ADF in reed canarygrass and smooth bromegrass at all harvests.
Intervention effect Drought lowered NDF and ADF in orchardgrass and timothy at two of three harvests.
Association Increased leafiness and stem and leaf quality were associated with improved forage quality.
Intervention effect Drought reduced reed canarygrass and timothy persistence.
Intervention effect Drought had no effect on smooth bromegrass and orchardgrass persistence.
Observation Smooth bromegrass was the most persistent grass.
Observation Orchardgrass was the least persistent grass.
Observation The authors interpret reed canarygrass as among the most productive grasses in drought.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Over three years, barley-oat mixtures increased yield by close to 5% compared with the means of pure components.

Taxon: barleyHordeum vulgaret0
Treatment: mixturese4
Outcome: yielde4
Direction: increasee4
Value: close to 5%e4
Qualifier: Over three yearse4
Comparator: the means of pure componentse4

Verbatim

t0
“Influence of Barley Scald Disease on Yield and Competition”
✓ located verbatim in the source · title, characters 0–58

e4
“Over three years the yield increase of the mixtures compared with the means of pure components was close to 5%, whereas extreme conditions in one year led to a decrease of 11%”
✓ located verbatim in the source · abstract, characters 509–684

Title

Influence of Barley Scald Disease on Yield and Competition in Barley‐Oat Mixtures

R. Karjalainen; K. Jokinen Journal of Agronomy and Crop Science 1993. doi:10.1111/j.1439-037x.1993.tb00146.x

Other claims from this paper (5)

Intervention effect Barley-oat mixtures reduced barley scald disease on upper leaves compared with pure barley stands in southern Finland.
Intervention effect Barley-oat mixtures lowered disease-induced yield reductions in barley only slightly.
Intervention effect Barley was not less competitive in the presence of scald disease than in its absence.
Association Competition between barley and oats was more important for yield determination than the direct influence of the disease.
Intervention effect Under extreme conditions in one year, barley-oat mixture yield decreased by 11%.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Mid-anthesis paclobutrazol sprays decreased dry matter allocation to vegetative components.

Taxon: Persea americanaPersea americanae0
Treatment: Mid-anthesis foliar sprays of paclobutrazol (PB)e1
Outcome: dry matter allocation to vegetative componentse2
Direction: decreasee2

Not reportedComparator

Verbatim

e0
“(Persea americana Mill.) trees”
✓ located verbatim in the source · abstract, characters 191–221

e1
“Mid-anthesis foliar sprays of paclobutrazol (PB) at 2.5, 1.25 and 0.62 g a.i. I-1 reduced spring growth”
✓ located verbatim in the source · abstract, characters 7–110

e2
“There was a decrease in dry matter allocation to vegetative components”
✓ located verbatim in the source · abstract, characters 223–293

Title

Use of paclobutrazol sprays at mid-anthesis for increasing fruit size and yield of avocado (Persea americanaMill. cv. Hass)

A. W. Whiley; J. B. Saranah; B. N. Wolstenholme; et al. Journal of Horticultural Science 1991. doi:10.1080/00221589.1991.11516188

Other claims from this paper (10)

Intervention effect Mid-anthesis foliar paclobutrazol sprays at 2.5, 1.25 and 0.62 g a.i. l-1 reduced spring growth.
Intervention effect Mid-anthesis paclobutrazol sprays increased dry matter allocation to fruit.
Intervention effect Foliar paclobutrazol at 2.5 g a.i. l-1 increased starch concentration in the wood of spring shoots by about 70% compared with other treatments.
Intervention effect Mid-anthesis foliar treatments reduced summer growth by about 20%.
Intervention effect Trunk injection of paclobutrazol plus a mid-anthesis foliar spray reduced summer shoot length by 36% compared with untreated trees.
Intervention effect Mid-anthesis paclobutrazol spray at 2.5 g a.i. l-1 increased mean fruit size at harvest by 16%.
Intervention effect Mid-anthesis paclobutrazol spray at 1.25 g a.i. l-1 increased mean fruit size at harvest by 11%.
Intervention effect Paclobutrazol applications did not significantly affect annual fruit yield.
Intervention effect Paclobutrazol spray at 1.25 and 0.62 g a.i. l-1 significantly increased the two-year cumulative yield by about 63%.
Intervention effect Trunk injection of paclobutrazol had no significant effect on fruit yield in the treatment season or the following season.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The photoinhibitory decline in thylakoid oxygen evolution correlated with the decline in leaf-disc variable to maximum fluorescence.

Taxon: beane1
Organ / stage: leavese0
Outcome: light-saturated rate of O2 evolutione0
Comparator: ratio of variable to maximum fluorescencee0

Not reportedDirection

Verbatim

e0
“The photoinhibitory decrease in the light-saturated rate of O2 evolution measured from thylakoids isolated from treated leaves correlated well with the decrease in the ratio of variable to maximum fluorescence measured from the leaf discs”
✓ located verbatim in the source · abstract, characters 666–904

e1
“bean (Phaseolus vulgaris L. cv Dufrix)”
✓ located verbatim in the source · abstract, characters 81–119

Title

Increase in the Quantum Yield of Photoinhibition Contributes to Copper Toxicity in Vivo1

Eija Pätsikkä; Eva-Mari Aro; Esa Tyystjärvi PLANT PHYSIOLOGY 1998. doi:10.1104/pp.117.2.619

Other claims from this paper (4)

Intervention effect Excess copper decreased the steady-state concentration of active photosystem II centers in illuminated bean leaves.
Intervention effect Excess copper apparently increased the quantum yield of photoinhibition in bean.
Intervention effect Excess copper did not alter photoinhibition kinetics or the independence of PhiPI from photon flux density.
Mechanism The increased quantum yield of photoinhibition may contribute substantially to copper toxicity in plants.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Sitobion avenae feeding caused a significant yield loss only during the boot stage of spring wheat.

Taxon: Triticum aestivumTriticum aestivume0
Organ / stage: boot stagee3
Treatment: Feeding by S. avenaee3
Interactor: S. avenaeSitobion avenaee3pest
Outcome: yield losse3
Direction: decreaseinferrede3

Not reportedComparator

Verbatim

e0
“Populations of the English grain aphid, Sitobion avenae (F.), and the bird cherryoat aphid, Rhopalosiphum padi (L.), develop in some years on maturing wheat, Triticum aestivum (L.)”
✓ located verbatim in the source · abstract, characters 0–180

e3
“Feeding by S. avenae caused significant yield loss only during the boot stage”
✓ located verbatim in the source · abstract, characters 1119–1196

Title

Yield Losses in Maturing Spring Wheat Caused by Cereal Aphids (Homoptera: Aphididae) under Laboratory Conditions

Todd S. Voss; Robert W. Kieckhefer; Billy W. Fuller; et al. Journal of Economic Entomology 1997. doi:10.1093/jee/90.5.1346

Other claims from this paper (8)

Intervention effect R. padi feeding at 600 aphid-days at the boot stage caused a 19% grain yield loss.
Intervention effect R. padi feeding at 1,200 aphid-days at the boot stage caused a 31% grain yield loss.
Intervention effect Aphid feeding at 300 aphid-days during the anthesis stage caused a 14% yield loss in spring wheat.
Intervention effect Aphid feeding at 600 aphid-days during the anthesis stage caused a 15% yield loss in spring wheat.
Intervention effect Aphid feeding at 1,200 aphid-days during the anthesis stage caused a 20% yield loss in spring wheat.
Intervention effect Regression showed that only R. padi feeding caused a significant yield loss of spring wheat, and only during the boot stage.
Association Reduced spikelet number per head during the boot stage was a principal component of cereal aphid yield loss in wheat.
Association Reduced average seed weight during later growth stages was a principal component of cereal aphid yield loss in wheat.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Replanting after 7–10.5 months of diffused light storage reduced yields by 10 to 100%.

Taxon: potatoSolanum tuberosumt0
Treatment: replanted after 7–10·5 months of DLSe0
Outcome: yieldt0
Direction: decreaseinferrede0
Value: 10 to 100%e0

Not reportedComparator

Verbatim

e0
“from 10 to 100% when replanted after 7–10·5 months of DLS”
✓ located verbatim in the source · abstract, characters 1031–1088

t0
“tuber yield of potato”
✓ located verbatim in the source · title, characters 72–93

Title

Influence of production and storage conditions on subsequent growth and tuber yield of potato (Solanum spp.) in the hot tropics

D. J. Midmore; J. Roca The Journal of Agricultural Science 1992. doi:10.1017/s0021859600071537

Other claims from this paper (14)

Intervention effect First replanting of hot climate tubers yielded less than cool produced tubers.
Intervention effect Replanting within 4 months reduced clone yields by 30 to 93%.
Intervention effect After similar cold storage periods, yield reductions ranged from 0 to 82%.
Mechanism Reduced yield was often due to poor vigour and growth limiting solar radiation interception.
Intervention effect Storage treatment showed no evidence of changing intercepted radiation utilization efficiency for tuber dry matter.
Association Poor sprout growth at planting greatly reduced yield in late clones under double cropping.
Association Low tuber dry matter in hot climate tubers did not influence emergence rate.
Association Low tuber dry matter was related to poor first replant vigour in warmer conditions.
Intervention effect Hot climate replanting and storage did not further reduce tuber dry matter after the first hot season.
Observation Tuber yields continued to decline, especially in single cropping with long diffused light storage.
Recommendation Authors consider annual replanting after cold storage feasible for hot climate potato production.
Recommendation Authors conclude short dormancy is essential for double cropping.
Association Poor vigour adds yield reductions under double cropping.
Recommendation Authors recommend considering production and storage schemes when selecting clones for hot climates.

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Deficit irrigation enhanced tomato fruit desirability despite yield reduction.

Taxon: tomatoesSolanum lycopersicume0
Treatment: DIe7
Outcome: fruit desirabilitye7
Direction: enhancede7
Qualifier: Despite yield reductione7

Not reportedComparator

Verbatim

e0
“In glasshouse-grown tomatoes ( Lycopersicon esculentum Mill. `Virosa'), deficit irrigation (DI), in which plant water potential was allowed to decrease from –0.5 to –1.2 MPa, reduced plant growth and fruit yield, size and count, and caused blossom-end rot”
✓ located verbatim in the source · abstract, characters 0–255

e7
“Despite yield reduction, DI enhanced fruit desirability in terms of higher concentration of soluble sugars and higher color intensity”
✓ located verbatim in the source · abstract, characters 920–1053

Title

Growth, Yield, and Postharvest Attributes of Glasshouse Tomatoes Produced under Deficit Irrigation

Lucio U. Pulupol; M. Hossein Behboudian; Keith J. Fisher HortScience 1996. doi:10.21273/hortsci.31.6.926

Other claims from this paper (11)

Intervention effect Deficit irrigation reduced plant growth of glasshouse tomatoes.
Intervention effect Deficit irrigation reduced fruit yield, fruit size and fruit count of glasshouse tomatoes.
Intervention effect Deficit irrigation caused blossom-end rot in glasshouse tomatoes.
Intervention effect Deficit-irrigated tomato fruit had higher color intensity than well-watered control fruit.
Intervention effect Deficit-irrigated tomato fruit had lower water content than well-watered control fruit.
Intervention effect Deficit-irrigated tomato fruit had higher concentrations of sucrose, glucose and fructose than well-watered control fruit.
Intervention effect Ca, Mg and K concentrations of tomato fruit were the same under both treatments on a dry weight basis.
Intervention effect Ca, Mg and K concentrations were higher in deficit-irrigated tomato fruit than in control fruit on a fresh weight basis.
Intervention effect Deficit-irrigated tomato fruit produced higher quantities of CO 2 and ethylene than control fruit for both harvests.
Observation Ethylene and CO 2 production peaks coincided for the first harvest in both treatments of tomato fruit.
Observation In the second harvest, the CO 2 production peak of tomato fruit preceded that of ethylene.

“yield decrease”

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