Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Selfed seed germination decreased by 20.8% from laboratory to field.

Taxon: Blandfordia grandifloraBlandfordia grandiflorat0
Outcome: selfed seedse0
Direction: decreaseinferrede0
Value: 20.8%e0

Verbatim

e0
“but was 20.8% for selfed seeds.”
✓ located verbatim in the source · abstract, characters 825–856

t0
“Blandfordia grandiflora”
✓ located verbatim in the source · title, characters 128–151

Title

Effect of Environment on the Magnitude of Inbreeding Depression in Seed Germination in a Partially Self-Fertile Perennial Herb (Blandfordia grandiflora, Liliaceae)

Mike Ramsey; Glenda Vaughton International Journal of Plant Sciences 1998. doi:10.1086/297525

Other claims from this paper (10)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Both w2 alleles decreased most chloroplast RNAs, with deficiencies roughly paralleling DNA deficiency.

Taxon: maizeZea mayse1
Treatment: Both allelese0
Gene: white2 (w2)e1
Outcome: most chloroplast RNAse0
Direction: decreasee0
Qualifier: roughly paralleling that of the DNA deficiencye0

Not reportedComparator

Verbatim

e0
“Both alleles condition a decrease in most chloroplast RNAs, with the magnitude of the RNA deficiencies roughly paralleling that of the DNA deficiency.”
✓ located verbatim in the source · abstract, characters 638–788

e1
“a nuclear gene in maize (Zea mays), white2 (w2)”
✓ located verbatim in the source · abstract, characters 307–354

Title

Effects of Reduced Chloroplast Gene Copy Number on Chloroplast Gene Expression in Maize

Dylan B. Udy; Susan Belcher; Rosalind Williams-Carrier; et al. PLANT PHYSIOLOGY 2012. doi:10.1104/pp.112.204198

Other claims from this paper (10)

Intervention effect Weak w2 alleles reduced maize plastid DNA copy number about fivefold.
Intervention effect Strong w2 alleles reduced maize plastid DNA copy number about 100-fold.
Association Some chloroplast RNAs were more sensitive to genome copy number reduction than others.
Intervention effect rpoB mRNA accumulated to dramatically elevated levels after a moderate plastid DNA reduction.
Intervention effect Photosynthetic enzyme subunits were reduced more severely than plastid mRNAs.
Mechanism The authors suggest impaired translation from limiting ribosomal RNA, transfer RNA and ribosomal protein mRNA could explain the enzyme subunit reduction.
Mechanism The authors conclude that chloroplast genome copy number limits expression of a subset of chloroplast genes.
Mechanism w2 is responsible for virtually all chloroplast DNA replication in maize.
Intervention effect Strong w2 alleles reduced mitochondrial DNA copy number approximately twofold.
Mechanism The mitochondrial DNA result suggests that w2 contributes to mitochondrial DNA replication.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The smallest rooting volume showed a twofold fall in root-zone matric potential to −14 kPa.

Taxon: tomato plants ( Lycopersicon esculentum Mill. ‘Red Dwarf)Solanum lycopersicume0
Treatment: smallest RVe1
Outcome: Ψ mse1
Direction: decreasee1
Value: 2‐folde1

Verbatim

e0
“tomato plants ( Lycopersicon esculentum Mill. ‘Red Dwarf)”
✓ located verbatim in the source · abstract, characters 109–166

e1
“The root environment in the smallest RV had a 2‐fold decrease in Ψ ms to ‐14 kPa, a greater rate of decrease in Ψ ms and a lower overall Ψ ms magnitude of‐30 kPa (compared with‐12 kPa in the largest RV).”
✓ located verbatim in the source · abstract, characters 321–524

Title

Variations in water availability and temperature in the root environment during root volume restriction studies

M. B. Hurley; J. S. Rowarth; M. C. T. Trought; et al. New Zealand Journal of Crop and Horticultural Science 1998. doi:10.1080/01140671.1998.9514049

Other claims from this paper (7)

Association Media matric potential and temperature varied inversely with rooting volume.
Association The smallest rooting volume had lower overall matric potential than the largest volume.
Association The smallest volume had a greater rate of matric-potential decrease.
Observation The root environment had large daily temperature fluctuations of 12°C.
Association The smallest volume was 3°C warmer than the largest volume.
Intervention effect Modified hydroponics with frequent watering eliminated matric-potential differences among rooting volumes.
Intervention effect Modified hydroponics with frequent watering reduced media temperature differences among rooting volumes.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Submergence decreased extractable soil Zn across five extractants.

Taxon: RiceOryza sativat0
Treatment: Submergencee0
Outcome: Zn contelll in soilse0
Direction: decreasee0
Comparator: initial extractable contentse0

Verbatim

e0
“Submergence caused a decrease in the Zn contelll in soils extracted by different extractants. viz. 1N-NH4OAc. 00.5N HCI, 1N MgCl2, 0.005M DTPA and 0.01M EDTA, the mean magnitude of decrease being 0.4.1.8, 1.0, 1.3 and 1.4 ppm, which constituted 43.5, 74.0, 38.5, 32.0 and 23.0 per cent respectively of the initial extractable contents.”
✓ located verbatim in the source · abstract, characters 0–335

t0
“Rice”
✓ located verbatim in the source · title, characters 61–65

Title

Availability of Zinc in Submerged Soil and Zinc Nutrition of Rice

L. N. Mandal; Debashis Dutta; Biswapati Mandal Journal of the Indian Society of Soil Science 1992

Other claims from this paper (5)

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Rainfall-dependent potassium and sulfur leaching made deficiency-related pasture production decreases unpredictable.

Taxon: ryegrassLoliume1
Outcome: decrease in pasture productione0
Qualifier: rainfall determining the extent of leachinge0

Verbatim

e0
“both elements can leach below the root-zone, with rainfall determining the extent of leaching and magnitude of the decrease in pasture production resulting from deficiency, which cannot be predicted”
✓ located verbatim in the source · abstract, characters 1014–1212

e1
“ryegrass dairy pastures”
✓ located verbatim in the source · abstract, characters 169–192

Title

Changes in chemical properties of 48 intensively grazed, rain-fed dairy paddocks on sandy soils over 11 years of liming in south-western Australia

M. D. A. Bolland; W. K. Russell Soil Research 2010. doi:10.1071/sr09199

Other claims from this paper (9)

Recommendation Tissue testing was needed with soil testing to confirm nutrient management decisions.
Method / resource Soil pH testing reliably identified paddocks needing lime and monitored liming.
Method / resource Soil phosphorus testing reliably indicated when phosphorus fertilizer was required.
Recommendation No phosphorus fertilizer was needed above the soil-specific critical soil-test phosphorus value.
Observation Plant tissue testing indicated adequate phosphorus for ryegrass production when no phosphorus was applied.
Method / resource Soil testing could not determine which paddocks required potassium fertilizer.
Method / resource Soil testing could not determine which paddocks required sulfur fertilizer.
Recommendation The authors recommended annual potassium and sulfur fertilizer and tissue testing to improve their management.
Recommendation The authors recommended annual soil pH and soil-test phosphorus reporting, with P-buffering index, organic carbon and conductivity every 3–5 years.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A rapid reduction of relative humidity to 60% induced a transient decrease in water potential (Ψ) of approximately 4.5 × 10^5 Pa in sunflower.

Taxon: sunflowerHelianthus annuuse1
Treatment: rapid reduction of relative humidity from 100% to 60 or 40%e7
Outcome: Ψe7
Direction: decreasese7
Value: approximately 4.5e7

Not reportedComparator

Verbatim

e1
“using hydroponic sunflower plants”
✓ located verbatim in the source · abstract, characters 108–141

e7
“Abrupt increases in evaporative demand, obtained by rapid reduction of relative humidity from 100% to 60 or 40%, induced transient decreases in Ψ of approximately 4.5 and 2.5 × 105 Pa, respectively, which were accompanied by simultaneous large increases in stomatal resistance”
✓ located verbatim in the source · abstract, characters 931–1207

Title

The Relative Magnitude of the Partial Resistances to Transpirational Water Movement in Sunflower (Helianthus annuusL.)

C. R. BLACK Journal of Experimental Botany 1979. doi:10.1093/jxb/30.2.245

Other claims from this paper (12)

Intervention effect Cooling the root system to 10 °C or below decreased leaf water potential by up to 7 × 10^5 Pa in hydroponic sunflower.
Intervention effect Leaf water potential completely recovered after root cooling to 10 °C or below once freezing was avoided.
Intervention effect Cooling stem or petiolar segments did not affect leaf water status unless freezing occurred.
Intervention effect Freezing during stem or petiolar cooling caused severe irreversible water stress above the cooled zone.
Intervention effect Leaves below the cooled zone were unaffected by stem or petiolar cooling.
Intervention effect A rapid reduction of relative humidity to 40% induced a transient decrease in water potential (Ψ) of 2.5 × 10^5 Pa in sunflower.
Intervention effect The rapid humidity reduction was accompanied by large simultaneous increases in stomatal resistance in sunflower.
Intervention effect No simultaneous transient effects were observed in the stem xylem during the rapid humidity reduction.
Observation Petiolar resistance was low in sunflower petioles, about 0.04 Pa s cm−4.
Observation Immature and senescent sunflower petioles had petiolar resistance up to 10 times larger than other petioles.
Mechanism The petiolar resistance trend is attributed to the developmental stage and condition of the xylem.
Mechanism The factor causing the transient foliar stress is located within the lamina, not in the stem xylem.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A rapid reduction of relative humidity to 40% induced a transient decrease in water potential (Ψ) of 2.5 × 10^5 Pa in sunflower.

Taxon: sunflowerHelianthus annuuse1
Treatment: rapid reduction of relative humidity from 100% to 60 or 40%e7
Outcome: Ψe7
Direction: decreasese7
Value: 2.5 × 105 Pae7

Not reportedComparator

Verbatim

e1
“using hydroponic sunflower plants”
✓ located verbatim in the source · abstract, characters 108–141

e7
“Abrupt increases in evaporative demand, obtained by rapid reduction of relative humidity from 100% to 60 or 40%, induced transient decreases in Ψ of approximately 4.5 and 2.5 × 105 Pa, respectively, which were accompanied by simultaneous large increases in stomatal resistance”
✓ located verbatim in the source · abstract, characters 931–1207

Title

The Relative Magnitude of the Partial Resistances to Transpirational Water Movement in Sunflower (Helianthus annuusL.)

C. R. BLACK Journal of Experimental Botany 1979. doi:10.1093/jxb/30.2.245

Other claims from this paper (12)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Maize yield components followed the same decline as grain yield.

Taxon: MaizeZea mayse0
Treatment: intercroppinge0
Outcome: Yield componentse0
Direction: decreaseinferrede0
Qualifier: similar trende0

Not reportedComparator

Verbatim

e0
“Maize-grain yield decreased due to intercropping. The reduction in yield was of higher magnitude with 1 :2 proportion with forage maize intercrop. Yield components followed the similar trend”
✓ located verbatim in the source · abstract, characters 202–392

Title

Performance of grain maize (Zea mays) and forage cereal intercropping on black soils under rainfed condition

B. M. CHIITAPUR; S. M. HIREMATH; A. S. PRABHAKAR Indian Journal of Agronomy 2001. doi:10.59797/ija.v38i4.3973

Other claims from this paper (4)

Intervention effect Intercropping decreased maize grain yield.
Intervention effect The grain-yield reduction was greatest with 1:2 forage maize intercropping.
Observation Intercrop forage yields were higher at a 1:2 proportion.
Intervention effect Maize and pearl millet intercropping yielded higher net returns.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Emergence percentage fell as sowing depth increased, more strongly for smaller seeded grasses.

Taxon: all speciese0
Treatment: increased sowing depthe0
Outcome: emergence percentagee0
Direction: decreasede0
Qualifier: ·greater with smaller seeded grassese0

Not reportedComparator

Verbatim

e0
“For all species, emergence percentage decreased with increased sowing depth but the magnitude of this decrease was ·greater with smaller seeded grasses.”
✓ located verbatim in the source · abstract, characters 908–1060

Title

Effects of sowing depth and additional nitrogen on emergence and establishment of a range of New Zealand pasture grasses

D. R. Porter; R.J. Lucas; M. Andrews 1993

Other claims from this paper (8)

Intervention effect Additional nitrogen did not affect grass emergence or establishment percentages.
Association Grass emergence percentage correlated positively with mean seed weight at all depths.
Intervention effect Survival of emerged plants over winter generally rose with sowing depth.
Association Grass establishment percentage was positively correlated with mean seed weight across depths.
Intervention effect Establishment percentage generally fell as sowing depth increased.
Observation Species and depth effects on emergence at 10 and 30 mm were similar under controlled and field conditions.
Intervention effect Nitrate did not affect emergence at 10 mm depth.
Intervention effect Nitrate decreased emergence percentage by 15% at 30 mm depth.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The smallest rooting volume had lower overall matric potential than the largest volume.

Taxon: tomato plants ( Lycopersicon esculentum Mill. ‘Red Dwarf)Solanum lycopersicume0
Outcome: Ψ mse1
Direction: lowere1
Value: ‐30 kPae1
Qualifier: compared with‐12 kPae1
Comparator: largest RVe1

Verbatim

e0
“tomato plants ( Lycopersicon esculentum Mill. ‘Red Dwarf)”
✓ located verbatim in the source · abstract, characters 109–166

e1
“The root environment in the smallest RV had a 2‐fold decrease in Ψ ms to ‐14 kPa, a greater rate of decrease in Ψ ms and a lower overall Ψ ms magnitude of‐30 kPa (compared with‐12 kPa in the largest RV).”
✓ located verbatim in the source · abstract, characters 321–524

Title

Variations in water availability and temperature in the root environment during root volume restriction studies

M. B. Hurley; J. S. Rowarth; M. C. T. Trought; et al. New Zealand Journal of Crop and Horticultural Science 1998. doi:10.1080/01140671.1998.9514049

Other claims from this paper (7)

Association Media matric potential and temperature varied inversely with rooting volume.
Observation The smallest rooting volume showed a twofold fall in root-zone matric potential to −14 kPa.
Association The smallest volume had a greater rate of matric-potential decrease.
Observation The root environment had large daily temperature fluctuations of 12°C.
Association The smallest volume was 3°C warmer than the largest volume.
Intervention effect Modified hydroponics with frequent watering eliminated matric-potential differences among rooting volumes.
Intervention effect Modified hydroponics with frequent watering reduced media temperature differences among rooting volumes.

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