Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Soil acidification without DTPA increased Cd uptake.

Taxon: barleyHordeum vulgaree1
Treatment: Acidification of soil without DTPAe0
Outcome: Cd uptakee0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Acidification of soil without DTPA also increased Cd uptake to high levels with associated yield decrease.”
✓ located verbatim in the source · abstract, characters 670–776

e1
“barley (Hordeum vulgare L. Atlas57)”
✓ located verbatim in the source · abstract, characters 431–466

Title

Some interactions of cadmium with other elements in plants

A. Wallace; E. M. Romney; G. V. Alexander; et al. Communications in Soil Science and Plant Analysis 1977. doi:10.1080/00103627709366771

Other claims from this paper (13)

Intervention effect Cadmium decreased Mn concentration in bush beans at low and high Mn levels.
Association Fe and other ions increased when Mn decreased, especially in leaves and roots.
Observation Toxicities of 10‐6 M Cd and 10‐4 M Mn were additive.
Intervention effect DTPA applied with Fe increased Cd uptake in barley.
Intervention effect DTPA applied with Fe led to somewhat greater barley yield depression.
Association Higher Cd uptake with acidification was associated with decreased yield.
Intervention effect Cd reduced Mn and Cu uptake most when CaCO3 was added.
Intervention effect KCl increased Cd concentration in bean leaves.
Intervention effect Equivalent KH2PO4 increased Cd concentration in bean leaves.
Intervention effect CaSO4 increased Cd concentration in bean roots.
Intervention effect KCl increased Cd concentration in bean roots.
Association Cd and Zn levels showed no yield interaction in bush beans.
Association Cd interacted with Zn concentrations in bean leaves, stems and roots at high Zn.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Growth and nitrogen yield of Stylosanthes guyanensis undersown with upland rice were negatively related to the level of urea application at Khon Kaen, Thailand.

Taxon: Stylosanthes guyanensise0
Treatment: level of urea applicatione0
Interactor: upland riceOryza sativae0other
Outcome: growth and nitrogen yielde0
Direction: decreaseinferrede0
Setting: Khon Kaen, north-east Thailande0

Verbatim

e0
“The growth and nitrogen yield of Stylosanthes guyanensis undersown with upland rice were negatively related to level of urea application at Khon Kaen, north-east Thailand”
✓ located verbatim in the source · abstract, characters 8–178

Title

Undersowing Rice (Oryza sativa) with Stylosanthes guyanensis. III. Nitrogen Supply

H. M. Shelton; L. R. Humphreys Experimental Agriculture 1975. doi:10.1017/s0014479700006542

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Under continuous heavy grazing, vegetative cover and forage yield deteriorated on the Stipa-Bouteloua prairie.

Taxon: Stipa-Bouteloua prairiee0
Treatment: continuous heavy grazinge1
Outcome: vegetative cover and forage yielde1
Direction: deterioratede1

Not reportedComparator

Verbatim

e0
“Stipa-Bouteloua prairie was grazed by sheep at three stocking rates over a 19-year period”
✓ located verbatim in the source · abstract, characters 0–89

e1
“Under continuous heavy grazing the vegetative cover and forage yield deteriorated mainly through the large increase in blue grama and the decrease in the more productive grasses”
✓ located verbatim in the source · abstract, characters 91–268

Title

Range Vegetation and Sheep Production at Three Stocking Rates on Stipa-Bouteloua Prairie

S. Smoliak Journal of Range Management 1974. doi:10.2307/3896432

Other claims from this paper (6)

Intervention effect Under continuous heavy grazing, blue grama increased greatly on the prairie.
Intervention effect Under continuous heavy grazing, the more productive grasses decreased on the prairie.
Intervention effect Mature ewes grazed at the heavy rate were lighter in body weight than those grazed at moderate or light intensities.
Intervention effect Mature ewes grazed at the heavy rate gave birth to smaller lambs than those grazed at moderate or light intensities.
Intervention effect Lambs from ewes grazed at the heavy rate were weaned at lower body weights than those grazed at moderate or light intensities.
Recommendation Stocking should not be below 1.0 acre per ewe per month to maintain vegetative cover in a productive condition.

Observationobservedoriginal resultmeasured

Claim · model-written summary

An increase in adjacent intact plants largely offset the yield and grain number loss at the higher density.

Taxon: MaizeZea mayse0
Outcome: increase in adjacent intact plantse1
Qualifier: largely offsete1

Verbatim

e0
“Maize was grown in two densities”
✓ located verbatim in the source · abstract, characters 8–40

e1
“though when alternate plants were defoliated in the higher density there was a substantial decrease in yield and number of grains in defoliated plants, which was largely offset by an increase in adjacent intact plants”
✓ located verbatim in the source · abstract, characters 415–632

Title

Effect of partial defoliation during the vegetative phase on subsequent growth and grain yield of maize

J. C. S. ALLISON; J. H. WILSON; J. H. WILLIAMS Annals of Applied Biology 1975. doi:10.1111/j.1744-7348.1975.tb01652.x

Other claims from this paper (16)

Intervention effect Defoliation decreased grain yield and grain number by 6–17%.
Intervention effect Defoliation on day 51 decreased leaf area by 60–64%.
Intervention effect Subsequent growth in leaf area after defoliation on day 51 was similar to that of untreated plants.
Intervention effect Leaf weight after defoliation on day 51 was nearly as large as in untreated plants.
Intervention effect Increase in stem weight after defoliation was substantially less than in untreated plants.
Intervention effect Untreated and defoliated plots differed by c. 30% in leaf area at flowering.
Intervention effect Increments of dry matter after flowering differed by c. 15% between untreated and defoliated plots.
Observation The fraction of increments entering the grain was c. 90% in both untreated and defoliated plots.
Intervention effect Dry matter increments after flowering with alternate plants defoliated were 93–95 % of those of untreated plots.
Intervention effect Leaf efficiency after flowering was slightly greater in alternate-defoliated plots than in untreated plots.
Intervention effect Alternate plants partly defoliated on day 44 had a subsequent leaf area increase probably 5–16% less than adjacent intact plants.
Intervention effect At the higher density, defoliating alternate plants decreased yield and grain number.
Observation The fraction of the dry matter increment entering the grain was c. 88 % at the small density.
Observation At the large density the fraction entering the grain was 94% in intact plants.
Observation At the large density the fraction entering the grain was 86% in defoliated plants.
Observation Maize plants flowered about 82 days after sowing.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Raising density from two to four or six transplants per hill significantly increased grain yield in all varieties except Jhona 349.

Taxon: RiceOryza sativat0
Treatment: 4 and 6 transplants/hille0
Outcome: grain yielde0
Direction: highere0
Qualifier: except Jhona 349e0
Comparator: 2e0

Verbatim

e0
“Increase in plant population from 2 to 4 and 6 transplants/hill resulted in significantly higher grain yield in all varieties except Jhona 349 where there was a decrease at 6 transplants/hill.”
✓ located verbatim in the source · abstract, characters 963–1155

t0
“Rice”
✓ located verbatim in the source · title, characters 15–19

Title

Performance of Rice Varieties in a Highly Saline Sodic Soil as Influenced by Plant Population

K. S. Dargan; I. P. Abrol; D. R. Bhumbla Agronomy Journal 1974. doi:10.2134/agronj1974.00021962006600020028x

Other claims from this paper (6)

Observation IR 8–68 at six transplants per hill had the highest grain yield, 57.33 quintals/ha.
Observation IR 8 at six transplants per hill ranked next in yield.
Observation Jhona 349 at four transplants per hill ranked next in yield.
Intervention effect At six transplants per hill, Jhona 349 yield decreased.
Mechanism Higher yield resulted from increased survival of hills.
Mechanism Higher yield also resulted from more panicle bearing tillers per hill.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain yield losses per square metre in 1969 were 30% in summer-fallow checks.

Taxon: Triticum aestivumTriticum aestivume0
Outcome: Grain yield losses per square metree6
Direction: decreaseinferrede6
Value: 30%e6
Qualifier: 1969e6
Comparator: summer-fallow checkse6

Verbatim

e0
“common root rot (Cochliobolus sativus) on plant biomass and grain yield in naturally infected Triticum aestivum cultivar Manitou were studied at Matador, Saskatchewan”
✓ located verbatim in the source · abstract, characters 15–181

e6
“Grain yield losses per square metre for 1969, 1970, and 1971 summer-fallow checks were 30, 35, and 30%, respectively”
✓ located verbatim in the source · abstract, characters 1134–1250

Title

The epidemiology of common root rot in Manitou wheat. IV. Appraisal of biomass and grain yield in naturally infected crops

P. R. Verma; R. A. A. Morrall; R. D. Tinline Canadian Journal of Botany 1976. doi:10.1139/b76-178

Other claims from this paper (11)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain yield losses per square metre in 1970 were 35 in summer-fallow checks.

Taxon: Triticum aestivumTriticum aestivume0
Outcome: Grain yield losses per square metree6
Direction: decreaseinferrede6
Value: 35e6
Qualifier: 1970e6
Comparator: summer-fallow checkse6

Verbatim

e0
“common root rot (Cochliobolus sativus) on plant biomass and grain yield in naturally infected Triticum aestivum cultivar Manitou were studied at Matador, Saskatchewan”
✓ located verbatim in the source · abstract, characters 15–181

e6
“Grain yield losses per square metre for 1969, 1970, and 1971 summer-fallow checks were 30, 35, and 30%, respectively”
✓ located verbatim in the source · abstract, characters 1134–1250

Title

The epidemiology of common root rot in Manitou wheat. IV. Appraisal of biomass and grain yield in naturally infected crops

P. R. Verma; R. A. A. Morrall; R. D. Tinline Canadian Journal of Botany 1976. doi:10.1139/b76-178

Other claims from this paper (11)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain yield losses per square metre in 1971 were 30% in summer-fallow checks.

Taxon: Triticum aestivumTriticum aestivume0
Outcome: Grain yield losses per square metree6
Direction: decreaseinferrede6
Value: 30%e6
Qualifier: 1971e6
Comparator: summer-fallow checkse6

Verbatim

e0
“common root rot (Cochliobolus sativus) on plant biomass and grain yield in naturally infected Triticum aestivum cultivar Manitou were studied at Matador, Saskatchewan”
✓ located verbatim in the source · abstract, characters 15–181

e6
“Grain yield losses per square metre for 1969, 1970, and 1971 summer-fallow checks were 30, 35, and 30%, respectively”
✓ located verbatim in the source · abstract, characters 1134–1250

Title

The epidemiology of common root rot in Manitou wheat. IV. Appraisal of biomass and grain yield in naturally infected crops

P. R. Verma; R. A. A. Morrall; R. D. Tinline Canadian Journal of Botany 1976. doi:10.1139/b76-178

Other claims from this paper (11)

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Second-year converted plots did not differ significantly from continued sowing plots in growth and yield.

Taxon: riceOryza sativae0
Treatment: second year plots after converted from transplanting culturee0
Outcome: growth and yielde0
Direction: No significant differencese0
Comparator: continued direct sowing plotse0

Verbatim

e0
“No significant differences in the growth and yield of direct sowing rice could be found between the second year plots after converted from transplanting culture and the continued direct sowing plots.”
✓ located verbatim in the source · abstract, characters 808–1007

Title

The Alternation of Direct Sowing and Transplanting as a Counterplan for the Rice Yield Decrease due to Continuance of Direct Sowing Culture

Yoshimasa UEMURA; Akira MIYASAKA Japanese Journal of Crop Science 1977. doi:10.1626/jcs.46.414

Other claims from this paper (8)

Intervention effect First-year converted plots had better rice growth than long-term direct sowing plots.
Intervention effect First-year converted plots had better rice yield than long-term direct sowing plots.
Association The first-year growth and yield advantage was more apparent in well-drained fields.
Intervention effect Conversion increased total inorganic available nitrogen in soil early in the first year.
Intervention effect Conversion decreased soil nitrate nitrogen early in the first year.
Intervention effect Postharvest direct sowing soil drained and harrowed more easily and had more porosity than transplanted soil.
Observation The soil physical properties of direct sowing appeared in the first year after conversion.
Recommendation The authors concluded that alternating direct sowing and transplanting could counter the yield decline.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Infection by the virus severely reduced broad bean yield.

Taxon: broad beanVicia fabae1
Treatment: infectione4
Outcome: yielde4
Direction: decreaseinferrede4
Qualifier: severee4

Not reportedComparator

Verbatim

e1
“A leaf-roll disease of broad bean, similar to that induced by bean leaf roll virus (BLRV) in Europe, is common in Tasmania”
✓ located verbatim in the source · abstract, characters 0–122

e4
“Effects of infection on yield were severe, as further pod set was markedly reduced after symptoms of infection developed”
✓ located verbatim in the source · abstract, characters 439–559

Title

Diseases of broad bean ( Vicia faba L. major) and green pea ( Pisum sativum L.) in Tasmania caused by subterranean clover red leaf virus

GR Johnstone Australian Journal of Agricultural Research 1978. doi:10.1071/ar9781003

Other claims from this paper (12)

“yield decrease”

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