Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

A decrease in soil solution nitrate during waterlogging was accompanied by an increase in nitrous oxide evolution.

Taxon: winter wheatTriticum aestivumt0
Compound: soil solution nitratee3
Outcome: nitrous oxide evolutione3
Direction: increasee3

Verbatim

t0
“Effects of single and multiple waterloggings on the growth and yield of winter wheat on a clay soil”
✓ located verbatim in the source · title, characters 0–99

e3
“a decrease in soil solution nitrate was accompanied by an increase in nitrous oxide evolution”
✓ located verbatim in the source · abstract, characters 668–761

Title

Effects of single and multiple waterloggings on the growth and yield of winter wheat on a clay soil

Robert K. Belford; Robert Q. Cannell; Robert J. Thomson Journal of the Science of Food and Agriculture 1985. doi:10.1002/jsfa.2740360304

Other claims from this paper (11)

Intervention effect Pre-emergence waterlogging restricted winter wheat plant population to 35 m-2 compared with 338 m-2 under free drainage.
Observation Oxygen concentration in the soil declined most rapidly during waterlogging when the soil was warmer and at shallower depths.
Intervention effect Waterlogging before emergence gave a greater proportion of surviving tillers.
Intervention effect Waterlogging before emergence left the flag leaves larger.
Intervention effect Waterlogging before emergence gave fewer ears at harvest in all treatments.
Mechanism Compensatory growth after early waterlogging results from diminished interplant competition for nitrogen, water and light.
Intervention effect After waterlogging during tillering, grain loss was accounted for entirely by fewer ear-bearing tillers.
Intervention effect After waterlogging during stem elongation, yield losses were associated with fewer grains per spikelet.
Intervention effect Single waterlogging depressed grain yield by about 4–12%.
Intervention effect Any two waterloggings depressed grain yield by 20%.
Intervention effect Waterlogging on all three occasions depressed grain yield by 32%.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The oil deficit reflected decreased seed yield.

Taxon: oilseed rapeBrassica napuse1
Interactor: BWYVBeet western yellows viruse1pathogen
Outcome: seed yielde0
Direction: decreasee0

Verbatim

e0
“the result of a decrease in both seed yield and oil content”
✓ located verbatim in the source · abstract, characters 1528–1587

e1
“oilseed rape with 100% BWYV‐infection”
✓ located verbatim in the source · abstract, characters 1416–1453

Title

Studies on beet western yellows virus in oilseed rape (Brassica napus ssp. oleifera) and sugar beet (Beta vulgaris)

HELEN G. SMITH; JENNIFER A. HINCKES Annals of Applied Biology 1985. doi:10.1111/j.1744-7348.1985.tb03164.x

Other claims from this paper (13)

Observation Oilseed-rape crops carried a virus reactive with BMYV antibody.
Observation No sampled plants carried virus reactive with BYV antibody.
Observation The BMYV-reactive virus was identified as beet western yellows virus.
Observation BWYV infection had no consistently associated leaf symptoms in oilseed rape.
Method / resource Sampling any leaf reliably detected BWYV in infected oilseed rape.
Observation Some BWYV isolates from oilseed rape infected sugar beet in glasshouse tests.
Observation The fraction of inoculated sugar beet plants infected by those isolates was low.
Mechanism The authors judged direct spring transmission from oilseed rape to sugar beet by M. persicae to be limited.
Observation M. persicae introduced and spread BWYV within oilseed-rape crops in autumn.
Observation Autumn-sown oilseed rape was an important potential overwintering host for M. persicae.
Observation Of 80 surveyed autumn-sown oilseed-rape crops, 78 were extensively infected with BWYV.
Intervention effect Plots with 100% BWYV infection yielded approximately 13.4% less oil than plots with 18% infection.
Observation The oil deficit reflected decreased oil content.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At low phosphorus, EDTA reduced yield much more in the zinc inefficient inbred than the efficient inbred.

Taxon: CornZea mays subsp. mayst0
Material: Zn inefficient inbrede0
Outcome: yielde0
Direction: decreasee0
Comparator: Zn efficient inbrede0

Not reportedTreatment

Verbatim

t0
“Corn”
✓ located verbatim in the source · title, characters 0–4

e0
“at the low P level, caused a much greater yield decrease for the Zn inefficient inbred than for the Zn efficient inbred”
✓ located verbatim in the source · abstract, characters 983–1102

Title

Corn inbreds differing in efficiency to zinc

A. Wallace; E. M. Romney; R. B. Clark Journal of Plant Nutrition 1980. doi:10.1080/01904168009362770

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Autocorrelation of sorghum fresh weight yield increased with sample length as variance decreased.

Taxon: sorghumSorghume0
Treatment: sample lengthe0
Outcome: Autocorrelation of sorghum fresh weight yielde0
Direction: increasede0
Qualifier: decrease in variancee0

Verbatim

e0
“Autocorrelation of sorghum fresh weight yield and infiltration volume increased with sample length and the increase was related to a decrease in variance.”
✓ located verbatim in the source · abstract, characters 970–1124

Title

Sample Volume Statistical Relations for Water Content, Infiltration, and Yield

W. W. Wallender Transactions of the ASAE 1987. doi:10.13031/2013.30518

Other claims from this paper (7)

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

No‐till changes in plants per hectare ranged from a 22% decrease to a 4% increase.

Taxon: MaizeZea mayst0
Treatment: no‐tille0
Outcome: plants/hae0
Direction: decrease to a 4% increasee0
Value: 22% decrease to a 4% increasee0
Comparator: conventionale1

Verbatim

e0
“Changes in plants/ha due to tillage ranged from a 22% decrease to a 4% increase under no‐till.”
✓ located verbatim in the source · abstract, characters 1461–1555

e1
“conventional (plowing followed by discing) vs. no‐till practices”
✓ located verbatim in the source · abstract, characters 480–544

t0
“Maize Hybrids”
✓ located verbatim in the source · title, characters 46–59

Title

No‐Till Effects on Yield and Plant Density of Maize Hybrids¹

E. L. Anderson Agronomy Journal 1986. doi:10.2134/agronj1986.00021962007800020022x

Other claims from this paper (9)

Association Hybrid by tillage interaction was not significant for plant density.
Association Hybrid by tillage interaction was inconsequential for grain yield except at Beltsville.
Observation No hybrid consistently performed better under conventional tillage.
Intervention effect In 1982 tillage did not significantly affect grain yield.
Intervention effect In 1983 no‐till grain yield exceeded conventional yield by 17 to 24% at three locations.
Intervention effect In 1984 no‐till increased yield by 19% at one location.
Association Grain yield and plants per hectare were not significantly correlated.
Recommendation The authors concluded that selecting genetic traits for no‐till yield may be unnecessary in this area.
Observation The authors concluded these hybrids would produce similar grain under either tillage practice.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

High-lysine lines had lower weight per seed.

Taxon: barleyHordeum vulgaret0
Outcome: weight per seede0
Direction: decreasee0

Verbatim

t0
“barley”
✓ located verbatim in the source · title, characters 33–39

e0
“because of a decrease in weight per seed”
✓ located verbatim in the source · abstract, characters 466–506

Title

Yield improvement in high lysine barley

RN Oram; H Doll Australian Journal of Agricultural Research 1981. doi:10.1071/ar9810425

Other claims from this paper (13)

Observation High-lysine lines yielded less than the most productive normal lysine cultivars.
Observation High-lysine lines had reduced extractable carbohydrate content.
Observation Ris° mutant no. 7 had fewer seeds per unit area.
Observation Ris° mutant no. 7 had normal carbohydrate content.
Association Higher yielding lys 3 homozygotes had more seeds per unit area.
Association Higher yielding lys 3 homozygotes had higher extractable carbohydrate concentrations.
Association Higher yielding lys 3 homozygotes had lower crude protein concentrations.
Observation Similar yield-linked composition trends occurred in Hiproly-derived lys homozygotes.
Observation The most productive lys and lys 3 homozygotes approached Clipper yields.
Observation The most productive lys and lys 3 homozygotes yielded 25% less than Cutter.
Observation Ris° no. 7 yielded less than the better lys and lys 3 selections.
Observation Ris° no. 29 yielded less than the better lys and lys 3 selections.
Observation Clipper 500 yielded less than the better lys and lys 3 selections.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Harvade at these concentrations tended to decrease seed index.

Treatment: Defoliant concentrations of 240, 360 and 480 ml ha −1e0
Outcome: seed indexe0
Direction: decreasee0

Not reportedTaxonComparator

Verbatim

e0
“Defoliant concentrations of 240, 360 and 480 ml ha −1 increased lint yield per plant but tended to decrease seed index.”
✓ located verbatim in the source · abstract, characters 265–384

Title

Effect of Concentration and Time of Application of the Defoliant Harvade on the Lint, Seed, Protein and Oil Yields, and Oil Properties of Cottonseed

Z. M. Sawan; EL-S. H. M. Hefni; M. A. Allam Experimental Agriculture 1988. doi:10.1017/s0014479700015763

Other claims from this paper (4)

Intervention effect Harvade at 240, 360 and 480 ml ha −1 increased lint yield per plant.
Intervention effect Defoliant did not significantly affect cottonseed yield per hectare, seed oil and protein percentages and yields, or oil properties.
Intervention effect Late application increased lint yield per plant and cottonseed, oil and protein yield per hectare.
Intervention effect Application date did not affect seed index, seed oil and protein percentages or oil properties.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Barley dry matter yield decreased slightly with increasing soil Mg.

Taxon: barleyHordeum vulgaree0
Compound: Mge0
Outcome: dry matter yielde0
Direction: decreasede0
Qualifier: decrease was smalle0

Verbatim

e0
“The dry matter yield of barley decreased with increasing concentrations of Mg in soils, but the decrease was small.”
✓ located verbatim in the source · abstract, characters 128–243

Title

The effect of Ca and K levels on the herbage yield and nutrient composition of barley plants grown in high Mg soils

C.A. Grant; G.J. Racz; L.D. Bailey Communications in Soil Science and Plant Analysis 1988. doi:10.1080/00103628809368053

Other claims from this paper (8)

Association Dry matter yield was positively related to soil K concentration.
Intervention effect Ca fertilizer did not increase dry matter yield.
Intervention effect K fertilizer did not increase dry matter yield.
Mechanism High-Mg yield depression was not attributed to reduced Ca or K availability.
Recommendation Ca application is unlikely to increase commercial crop yields on these soils.
Recommendation K application is unlikely to increase commercial crop yields on these soils.
Observation Unfertilized soil solution Mg concentrations were below previously yield-reducing levels.
Intervention effect N fertilizer increased soil Mg concentrations to potentially barley-yield-reducing levels.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Pyrites was associated with an appreciable decrease in soil pH and electrical conductivity in rice and wheat fields.

Taxon: rice and wheat cropsOryza sativa Triticum aestivumt0
Treatment: pyritese3
Outcome: pH, electrical conductivitye3
Direction: decreasee3

Verbatim

t0
“rice and wheat crops”
✓ located verbatim in the source · title, characters 82–102

e3
“The favourable effect of pyrites on crop yield was associated with an appreciable decrease in the pH, electrical conductivity and exchangeable and soluble sodium content of the soil resulting in greater utilization of Zn and Ca by the crops”
✓ located verbatim in the source · abstract, characters 504–744

Title

Effect of sedimentary pyrites and Zn application on yield, Zn and Ca nutrition of rice and wheat crops and on amelioration of saline sodic soil

K. N. Tiwari; A. N. Pathak; G. P. Upadhyay The Journal of Agricultural Science 1982. doi:10.1017/s0021859600030203

Other claims from this paper (12)

Intervention effect With 40% gypsum-requirement pyrites, first-crop rice grain yield rose to 3.44 t/ha from 1.55 t/ha in the control.
Intervention effect With 80% gypsum-requirement pyrites, first-crop rice grain yield rose to 4.01 t/ha from 1.55 t/ha in the control.
Intervention effect Pyrites residues significantly increased grain yield of succeeding wheat.
Intervention effect Pyrites residues significantly increased grain yield of succeeding rice.
Association Pyrites was associated with an appreciable decrease in exchangeable and soluble sodium content of the soil.
Intervention effect Zinc applications greatly increased grain yield and Zn uptake of rice and wheat crops.
Intervention effect Higher pyrites with adequate NPK but without Zn did not give yields equal to those from adding 11 kg Zn/ha.
Intervention effect Zn residues from higher Zn treatments produced significant yield responses in succeeding wheat.
Intervention effect Zn residues from higher Zn treatments produced significant yield responses in succeeding rice.
Intervention effect The pyrites+Zn treatment was most effective in decreasing grain Na content of rice and wheat crops.
Intervention effect The pyrites+Zn treatment enhanced Ca uptake of rice and wheat crops.
Intervention effect The Zn treatment alone decreased soil pH, electrical conductivity and exchangeable Na.

Intervention effectobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

Boron fertilization showed a nonsignificant trend toward lower sunflower yield than the check.

Taxon: sunflowerHelianthus annuuse0
Treatment: boron fertilizatione0
Outcome: sunflower yielde0
Direction: decreasee0
Comparator: checke0

Verbatim

e0
“Although sunflower yield from boron fertilization was not significantly different from the check, a trend was observed in which boron fertilization seemed to decrease sunflower yield.”
✓ located verbatim in the source · abstract, characters 461–644

Title

Effects of sulfur, zinc, iron, copper, manganese, and boron applications on sunflower yield and plant nutrient concentration

B. R. Hilton; J. C. Zubriski Communications in Soil Science and Plant Analysis 1985. doi:10.1080/00103628509367615

Other claims from this paper (8)

Intervention effect The six nutrient applications did not affect sunflower seed yield.
Intervention effect The six nutrient applications did not affect sunflower oil percentage.
Intervention effect Zn uptake at the 12-leaf stage responded significantly to fertilization.
Intervention effect Mn uptake at the 12-leaf stage responded significantly to fertilization.
Intervention effect B uptake at the 12-leaf stage responded significantly to fertilization.
Intervention effect Zinc fertilization increased Zn uptake in the uppermost mature leaf at anthesis.
Intervention effect Boron-treated plots had the lowest sunflower yields among seven treatments in three of four fields.
Intervention effect Combined across fields, boron reduced sunflower yield relative to iron and sulfur treatments.

“yield decrease”

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