Search claims · PlantClaims

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping increased sorghum equivalent yield.

Taxon: sorghumSorghumt0
Treatment: Intercroppinge1
Outcome: sorghum equivalent yield (SEY)e0
Direction: increasee0

Not reportedComparator

Verbatim

e0
“led to increase in sorghum equivalent yield (SEY) and Land Equivalent Ratio (LER).”
✓ located verbatim in the source · abstract, characters 1634–1716

e1
“Intercropping resulted into decrease in sorghum grain yield”
✓ located verbatim in the source · abstract, characters 1569–1628

t0
“sorghum”
✓ located verbatim in the source · title, characters 39–46

Title

Effect of ridging and intercropping on sorghum productivity in arid and semi-arid lands of eastern Kenya

D. Musyimi; E.O. Ouma; E.O. Auma; et al. African Crop Science Journal 1970. doi:10.4314/acsj.v30i1.7

Other claims from this paper (8)

Observation Ridging and intercropping had no significant interaction.
Intervention effect Ridging raised soil moisture by 11-26%.
Intervention effect Sorghum-KAT B1 intercropping decreased soil moisture by -11%.
Intervention effect Sorghum-KAT X56 intercropping decreased soil moisture by -7%.
Observation Sole bean had the highest soil moisture, followed by sole sorghum and intercropping.
Intervention effect Ridged plots had the highest sorghum grain and equivalent yields.
Intervention effect Intercropping decreased sorghum grain yield.
Intervention effect Intercropping increased land equivalent ratio.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Selection for early flowering changed grain moisture by 1.6 percentage points per cycle.

Taxon: corn ( Zea mays L.)Zea mayse1
Treatment: Selectione0
Outcome: grain moisturee0
Direction: decreasee0
Value: 1.6 percentage pointse0

Not reportedComparator

Verbatim

e0
“Selection effect per cycle averaged: 1.1 q/ha yield increase, 2.2 ears/100 p.lants increase (1‐year data), 1.6 percentage points grain moisture decrease, 2.8% stalk breakage increase, 6.1 cm plant height decrease, 4.1 cm ear height decrease, 1.7 days less to flower, and 0.4 days less silk delay.”
✓ located verbatim in the source · abstract, characters 318–614

e1
“Seven corn ( Zea mays L.) synthetics adapted to southern Iowa”
✓ located verbatim in the source · abstract, characters 0–61

Title

Selection for Early Flowering in Corn: Seven Late Synthetics

A. F. Troyer; W. L. Brown Crop Science 1976. doi:10.2135/cropsci1976.0011183x001600060007x

Other claims from this paper (16)

Intervention effect Selection for early flowering changed yield by 1.1 q/ha per cycle.
Intervention effect Selection for early flowering changed ears/100 p.lants by 2.2 ears/100 p.lants per cycle.
Intervention effect Selection for early flowering changed stalk breakage by 2.8% per cycle.
Intervention effect Selection for early flowering changed plant height by 6.1 cm per cycle.
Intervention effect Selection for early flowering changed ear height by 4.1 cm per cycle.
Intervention effect Selection for early flowering changed flower by 1.7 days per cycle.
Intervention effect Selection for early flowering changed silk delay by 0.4 days per cycle.
Observation Advanced selection cycles were prolific at low density after selection against barrenness at high density.
Association Flowering date was highly heritable and responded readily to selection.
Intervention effect Selection for early flowering produced more genetic divergence than early donor breeding schemes.
Association Earlier flowering increased yield among late flowering corn.
Association Earlier flowering decreased yield among early flowering corn.
Association Earlier flowering increased yield in a short, cool season.
Association Earlier flowering decreased yield in a long, warm season.
Recommendation The authors recommend early flowering selection to adapt late corn to earlier areas.
Mechanism The authors interpret earlier flowering yield responses through grain filling period and plant size.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Adding Mg decreased glutamine in ryegrass.

Taxon: Italian ryegrassLolium multiflorume0
Treatment: adding Mge6
Compound: glutaminee6
Outcome: glutaminee6
Direction: decreasee6

Not reportedComparator

Verbatim

e0
“Italian ryegrass ( Lolium multiflorum ) S22”
✓ located verbatim in the source · abstract, characters 9–52

e6
“The main effect of adding Mg was to decrease glutamine”
✓ located verbatim in the source · abstract, characters 1240–1294

Title

Effects of form and amounts of nitrogen and magnesium fertilisers on the yield and on the inorganic and organic composition of italian ryegrass grown on magnesium deficient soil

Tadeusz Z. Nowakowski; John Bolton; William Lazarus Journal of the Science of Food and Agriculture 1975. doi:10.1002/jsfa.2740261007

Other claims from this paper (13)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Where nitrogen was adequate and lime did not counter aluminium toxicity, lime usually reduced plant phosphorus concentration.

Treatment: limee0
Outcome: concentration of phosphorus in the plantse0
Direction: decreasee0
Qualifier: nitrogen was adequatee0

Not reportedTaxonComparator

Verbatim

e0
“Where nitrogen was adequate and there was no effect of lime in counteracting aluminium toxicity, in most cases lime caused a decrease in the concentration of phosphorus in the plants as well as a decrease in the yield.”
✓ located verbatim in the source · abstract, characters 1265–1483

Title

Effects of lime on the growth of five species, on aluminium toxicity, and on phosphorus availability

KR Helyar; AJ Anderson Australian Journal of Agricultural Research 1971. doi:10.1071/ar9710707

Other claims from this paper (18)

Association Phalaris yielded poorly relative to perennial ryegrass on less productive acidic soils.
Intervention effect Lucerne responded positively to lime on infertile acid soil.
Intervention effect Phalaris responded positively to lime on infertile acid soil.
Intervention effect Liming depressed subterranean clover.
Intervention effect Liming depressed white clover.
Intervention effect Liming depressed perennial ryegrass.
Mechanism Aluminium toxicity depressed lucerne growth where nitrogen was adequate.
Mechanism Aluminium toxicity depressed phalaris growth where nitrogen was adequate.
Observation Roots did not show obvious stunting.
Observation Subterranean clover resisted aluminium toxicity.
Observation White clover resisted aluminium toxicity.
Observation Perennial ryegrass resisted aluminium toxicity.
Association Evidence for a negative lime by phosphate yield interaction was limited.
Association Phosphate responses generally increased with lime level.
Observation With suboptimal nitrogen, lime responses were not clearly attributable to relief of aluminium toxicity.
Intervention effect Under the same conditions lime usually reduced yield.
Intervention effect Lime decreased phosphorus in extracted soil solutions.
Intervention effect Where lime counteracted aluminium toxicity, it sometimes increased phosphorus concentration in plant tops.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Panicles per plant fell as row spacing increased.

Taxon: GRAIN SORGHUMSorghum bicolort0
Treatment: row spacinge0
Outcome: panicles per plante0
Direction: decreasee0

Verbatim

e0
“Grain yield per panicle increased as row spacing increased but this was offset by a decrease in panicles per plant and panicles per square meter.”
✓ located verbatim in the source · abstract, characters 234–379

t0
“GRAIN SORGHUM”
✓ located verbatim in the source · title, characters 49–62

Title

EFFECTS OF ROW SPACING AND POPULATION DENSITY ON GRAIN SORGHUM PRODUCTION IN SOUTHERN ALBERTA

B. R. HEGDE; D. J. MAJOR; D. B. WILSON; et al. Canadian Journal of Plant Science 1976. doi:10.4141/cjps76-006

Other claims from this paper (13)

Intervention effect Row spacing and population density had no consistent effect on sorghum grain yield.
Association Grain yield per panicle rose with row spacing.
Association Panicles per square meter fell as row spacing increased.
Association Grain yield per panicle decreased as population density increased.
Association Panicles per plant decreased as population density increased.
Association Panicles per square meter decreased as population density increased.
Observation Seasonal evapotranspiration was 179 mm in 1973.
Observation Seasonal evapotranspiration was 204 mm in 1974.
Association Water use efficiency was highest at low densities and narrow spacing.
Observation Pride X4004 had greater grain yield than Pride X4053.
Observation Pride X4004 produced more seed-bearing tillers than Pride X4053.
Association Grain yield differences among Pride X4004 experiments reflected differences in grain yield per panicle.
Recommendation Choice of spacing and density should depend on crop management convenience.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Low level or lack of phosphorus and potassium significantly decreased barley grain yield relative to the maximum yield on the Saint-Andre soil.

Taxon: Hordeum vulgare L.Hordeum vulgaree1
Treatment: phosphorus and potassiume3
Outcome: grain yieldse3
Direction: decreasee3
Comparator: maximum yielde3
Setting: Saint-André soile3

Verbatim

e1
“The effect of sulfur was compared with that of nitrogen, phosphorus and potassium on the yield and quality of barley (Hordeum vulgare L.) grown under greenhouse conditions”
✓ located verbatim in the source · abstract, characters 0–171

e3
“low level or lack of sulfur as well as phosphorus and potassium caused a significative decrease in grain yields in relation with the maximum yield on the Saint-André soil”
✓ located verbatim in the source · abstract, characters 384–554

Title

EFFET DE L’ADDITION DE SOUFRE A UNE FERTILISATION DE N, P ET K SUR LES RENDEMENTS ET LA QUALITE DE L’ORGE CULTIVEE EN SERRE

Y. A. MARTEL; J. ZIZKA Canadian Journal of Plant Science 1977. doi:10.4141/cjps77-085

Other claims from this paper (9)

Intervention effect Nitrogen gave the greatest differences in grain and straw yield of barley on both soils.
Intervention effect Low level or lack of sulfur significantly decreased barley grain yield relative to the maximum yield on the Saint-Andre soil.
Intervention effect Lack of phosphorus similarly decreased barley grain yield on the Kamouraska soil.
Observation Barley grain mean N concentration was 1.05%.
Observation Barley grain mean P concentration was 0.41%.
Observation Barley grain mean K concentration was 0.50%.
Observation Barley grain mean S concentration was 0.10%.
Observation Grain N, P, K and S concentrations were more constant across treatments and soils than the N:S and S:P ratios.
Observation Sulfur accumulation in barley straw and variable fertiliser efficiency made it difficult to relate barley sulfur need to nitrogen and phosphorus concentrations.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Calculated dry matter yield agreed acceptably with experiments when stand closure and growth decline dates were known.

Taxon: riceOryza sativat0
Outcome: total DM yieldse0
Qualifier: provided that the dates when a closed stand was obtained and when the growth rate started to decrease were knowne0
Comparator: experimental resultse0

Verbatim

e0
“Calculated total DM yields, grain yields and grain:straw ratios were in acceptable agreement with the experimental results, provided that the dates when a closed stand was obtained and when the growth rate started to decrease were known”
✓ located verbatim in the source · abstract, characters 351–587

t0
“rice”
✓ located verbatim in the source · title, characters 27–31

Title

A calculation of potential rice yields.

A. van Ittersum Netherlands Journal of Agricultural Science 1972. doi:10.18174/njas.v20i1.17294

Other claims from this paper (2)

Method / resource Calculated grain yields agreed acceptably with experiments under the stated timing condition.
Method / resource Calculated grain to straw ratios agreed acceptably with experiments under the stated timing condition.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tobacco yield increased as spacing decreased.

Taxon: tobaccoNicotiana tabacume0
Treatment: plant spacinge0
Outcome: Yield of tobaccoe0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Yield of tobacco increased with increase in topping height or decrease in plant spacing.”
✓ located verbatim in the source · abstract, characters 249–337

Title

EFFECTS OF HEIGHT OF TOPPING AND PLANT SPACING OF FLUE-CURED TOBACCO ON CERTAIN PROPERTIES OF THE CURED LEAVES AND SMOKE CHARACTERISTICS OF CIGARETTES

J. M. ELLIOT Canadian Journal of Plant Science 1976. doi:10.4141/cjps76-024

Other claims from this paper (13)

Intervention effect Tobacco yield increased with topping height.
Intervention effect Untopped tobacco yielded more than tobacco topped at 12 leaves.
Intervention effect Lamina weight tended to increase with lower topping height.
Intervention effect Lamina weight tended to increase with wider spacing.
Intervention effect Higher topping height decreased leaf and smoke total alkaloids.
Intervention effect Decreasing spacing decreased total alkaloids in leaves and smoke.
Intervention effect Untopped tobacco had lower total alkaloids than topped tobacco.
Intervention effect Total nitrogen was highest with 12-leaf topping.
Intervention effect Low topping tended to give the lowest reducing sugars.
Intervention effect Wide spacing tended to give the lowest reducing sugars.
Intervention effect Increasing spacing tended to increase petroleum ether extract.
Intervention effect Topping height did not affect total particulate matter.
Intervention effect Untopped tobacco had the lowest total particulate matter.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Low level or lack of sulfur significantly decreased barley grain yield relative to the maximum yield on the Saint-Andre soil.

Taxon: Hordeum vulgare L.Hordeum vulgaree1
Treatment: low level or lack of sulfure3
Outcome: grain yieldse3
Direction: decreasee3
Comparator: maximum yielde3
Setting: Saint-André soile3

Verbatim

e1
“The effect of sulfur was compared with that of nitrogen, phosphorus and potassium on the yield and quality of barley (Hordeum vulgare L.) grown under greenhouse conditions”
✓ located verbatim in the source · abstract, characters 0–171

e3
“low level or lack of sulfur as well as phosphorus and potassium caused a significative decrease in grain yields in relation with the maximum yield on the Saint-André soil”
✓ located verbatim in the source · abstract, characters 384–554

Title

EFFET DE L’ADDITION DE SOUFRE A UNE FERTILISATION DE N, P ET K SUR LES RENDEMENTS ET LA QUALITE DE L’ORGE CULTIVEE EN SERRE

Y. A. MARTEL; J. ZIZKA Canadian Journal of Plant Science 1977. doi:10.4141/cjps77-085

Other claims from this paper (9)

Intervention effect Nitrogen gave the greatest differences in grain and straw yield of barley on both soils.
Intervention effect Low level or lack of phosphorus and potassium significantly decreased barley grain yield relative to the maximum yield on the Saint-Andre soil.
Intervention effect Lack of phosphorus similarly decreased barley grain yield on the Kamouraska soil.
Observation Barley grain mean N concentration was 1.05%.
Observation Barley grain mean P concentration was 0.41%.
Observation Barley grain mean K concentration was 0.50%.
Observation Barley grain mean S concentration was 0.10%.
Observation Grain N, P, K and S concentrations were more constant across treatments and soils than the N:S and S:P ratios.
Observation Sulfur accumulation in barley straw and variable fertiliser efficiency made it difficult to relate barley sulfur need to nitrogen and phosphorus concentrations.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

High P supply decreased Zn concentration in corn shoots.

Taxon: CornZea mays subsp. mayst0
Organ / stage: shootse1
Treatment: high P supplye1
Outcome: Zne1
Direction: decreasee1

Not reportedComparator

Verbatim

t0
“Corn to Zinc”
✓ located verbatim in the source · title, characters 29–41

e1
“a significant decrease of Zn and a significant increase of P concentration in the shoots of the plant with a high P supply”
✓ located verbatim in the source · abstract, characters 980–1102

Title

Yield and Uptake Response of Corn to Zinc, as Influenced by Phosphorus Fertilization¹

P. N. Takkar; M. S. Mann; R. L. Bansal; et al. Agronomy Journal 1976. doi:10.2134/agronj1976.00021962006800060024x

Other claims from this paper (12)

Observation Corn responded optimally to P fertilization at 44 kg P/ha.
Intervention effect High P supply beyond the optimum rate produced severe Zn deficiency symptoms in corn without added Zn.
Intervention effect High P supply decreased grain and stover yields of corn.
Intervention effect High P supply increased P concentration in corn shoots.
Intervention effect Increased Zn supply alleviated Zn deficiency symptoms in corn.
Intervention effect Increased Zn supply significantly increased Zn concentration and uptake in corn.
Intervention effect Increased Zn supply significantly increased growth and yield of corn.
Intervention effect High rates of P fertilization (66 to 88 kg/ha) increased the Zn requirement of corn.
Mechanism P reduced the rate of Zn entry into corn roots, inducing zinc deficiency.
Association The P-Zn disorder in corn was better related to the P/Zn ratio in soil and plant parts than to P or Zn content.
Method / resource P/Zn values above 7.5 in soil, 245 in grain, 130 in stover and 150 in leaves indicated severe Zn deficiency in corn.
Method / resource P/Zn values of 4 to 7.5 in soil, 150 to 245 in grain, 90 to 130 in stover and 100 to 150 in leaves indicated moderate Zn deficiency or response in corn.

“yield decrease”

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