Search claims · PlantClaims

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield tended to decrease with later planting dates.

Treatment: later planting datese0
Outcome: yielde0
Direction: decreasee0

Not reportedTaxonSetting

Verbatim

e0
“yield tended to decrease with later planting dates”
✓ located verbatim in the source · abstract, characters 13–63

t0
“Short Staple Planting Dates”
✓ located verbatim in the source · title, characters 14–41

Title

Comparison of Short Staple Planting Dates

C. R. Farr UA Campus Repository (The University of Arizona) 1976

Other claims from this paper (6)

Association Boll size was smaller for the last two planting dates.
Observation Five-lock bolls were larger than four-lock bolls.
Association Boll numbers did not consistently decline as planting was delayed.
Association Boll size did not consistently decline as planting was delayed.
Observation The June 15 planting showed undue moisture stress.
Intervention effect Early frost killed many late bolls and reduced yield below expectation.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

At high populations, the decrease in barley grain yield was accompanied by a comparable decrease in grains per unit area.

Taxon: barleyHordeum vulgaret0
Treatment: high populationse1
Outcome: number of grains per unit areae1
Direction: decreasee1

Not reportedComparator

Verbatim

t0
“barley”
✓ located verbatim in the source · title, characters 40–46

e1
“a decrease in grain yield at high populations was associated with a comparable decrease in the number of grains per unit area”
✓ located verbatim in the source · abstract, characters 1272–1397

Title

Plant population and shading studies in barley

R. W. Willey; R. Holliday The Journal of Agricultural Science 1971. doi:10.1017/s0021859600064510

Other claims from this paper (9)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

A yield decrease under soil heating occurred only with tall fescue during the summer.

Taxon: tall fescueLolium arundinaceume7
Outcome: yielde7
Direction: decreasee7
Qualifier: onlye7
Setting: during the summere7

Verbatim

e7
“A yield decrease occurred only with tall fescue during the summer”
✓ located verbatim in the source · abstract, characters 1308–1373

Title

Yield Response to Soil Warming: Agronomic Crops¹

K. A. Rykbost; L. Boersma; H. J. Mack; et al. Agronomy Journal 1975. doi:10.2134/agronj1975.00021962006700060001x

Other claims from this paper (9)

Intervention effect Soil heating increased yield of tall rescue by 19% over unheated plots.
Intervention effect Soil heating increased yield of sudangrass by about 50% over unheated plots.
Observation Yield increases from soil heating varied widely from year to year for the same crop.
Association The highest yield increases from soil heating occurred in years when yields on unheated plots were lowest.
Association Yield increases were highly significantly correlated with yields from unheated plots.
Association Soil heating appears most effective when climatic conditions and management factors are limiting.
Association Higher soil temperatures had their greatest effect on crop growth rates in early spring.
Intervention effect Heating increased the average soil temperature from 0 to 100 cm deep by about 10 C.
Intervention effect Heating increased the average temperature of the 0 to 10 cm soil layer by less than 3 C.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Greater growing-season rainfall appeared to decrease yield.

Taxon: sugar beetBeta vulgaris subsp. vulgarist0
Outcome: yielde0
Direction: decreasee0
Setting: rainfall during the growing seasone0

Verbatim

e0
“increasing amounts of rainfall during the growing season appeared to decrease yield”
✓ located verbatim in the source · abstract, characters 577–660

t0
“sugar beet”
✓ located verbatim in the source · title, characters 47–57

Title

The effect of soil type and related factors on sugar beet yield

R. Webster; C. A. H. Hodge; A. P. Draycott; et al. The Journal of Agricultural Science 1977. doi:10.1017/s0021859600034973

Other claims from this paper (19)

Association Year-to-year variation explained 20% of yield variation.
Association Sugar yield increased over time by 0·042 t/ha/year.
Observation Experimental yields followed national yields but were greater.
Association Delayed sowing depressed yield by 0–02 t sugar/ ha/day.
Association Early harvest depressed yield by 0·01 t sugar/ ha/day.
Observation Scottish yields were 1·4 t/ha lower than England and Wales.
Observation No regional yield differences were evident within England and Wales.
Association Moderately drained soils yielded better than well-drained or imperfectly drained soils.
Association Well-drained and imperfectly drained soils yielded better than droughty and poorly drained soils.
Association Adjusted yields differed by 1·0 t/ha among drainage classes.
Association Topsoil texture had no consistent effect on mean yield.
Association Subsoil texture had an appreciable effect on yield, with sandy and chalk soils poor and silt and peat best.
Association Subsoil texture accounted for almost 2 t/ha difference in sugar yield.
Association Major soil groups distinguished yields.
Association Yield was highest on gleyed calcareous soils, peats and humic gleys and lowest on rendzinas and brown calcareous soils.
Association Nitrogen and potassium responses varied with topsoil and subsoil texture, unlike phosphorus response.
Intervention effect Nitrogen increased yield most on sandy soils and least on fine silts and peats.
Intervention effect Potassium increased yield most on sandy soils and least on fine silts and peats.
Recommendation The authors recommend dedicated experiments to guide selection of land for sugar beet.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Beyond the protein-yield threshold, a further increase in rice protein content results in a decrease in grain yield.

Taxon: RiceOryza sativat0
Compound: protein contente0
Outcome: grain yielde0
Direction: decreasee0

Verbatim

e0
“further increase in the protein content results in a decrease in grain yield”
✓ located verbatim in the source · abstract, characters 1205–1281

t0
“Rice”
✓ located verbatim in the source · title, characters 47–51

Title

Influence of Environment on Protein Content of Rice¹

K. A. Gomez; S. K. De Datta Agronomy Journal 1975. doi:10.2134/agronj1975.00021962006700040029x

Other claims from this paper (6)

Associationobservedreview summarybasis n/a

Claim · model-written summary

Breeding for high protein (above 48%) enhances a decrease in oil and yield.

Taxon: soybeansGlycine maxt0
Treatment: breed for high protein (above 48%)e0
Outcome: oil and yielde0
Direction: decreasee0

Verbatim

t0
“soybeans”
✓ located verbatim in the source · title, characters 34–42

e0
“To breed for high protein (above 48%) enhances a decrease in oil and yield”
✓ located verbatim in the source · abstract, characters 834–908

Title

Production and nutritive value of soybeans.

A Lam-Sánchez PubMed 1978

Other claims from this paper (10)

Observation World soybean production has been increasing at 5.2% per year.
Observation Average world soybean yield is around 1,400 kg/ha.
Observation Brazil, the third largest producer, has had a yearly rate of soybean production increase of 32% in recent years.
Observation Average soybean yields in Brazil are low, around 1,500 kg/ha.
Observation In experimental results, soybean yields over 3,000 kg/ha have been obtained.
Association Protein and oil contents of soybean are highly negatively correlated.
Observation New soybean varieties containing 43% protein with a good yielding capacity have been developed.
Observation Methionine content of soybean varies from 1.0 to 1.6% g/16g N.
Association Methionine in the protein is correlated (0.56 to 0.58) with protein in the seed.
Intervention effect The effect of trypsin inhibitors on methionine availability or utilization can be eliminated by heat.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The extent of rice yield decrease was correlated with ripening temperature.

Taxon: riceOryza sativae0
Treatment: ripening temperaturee1
Outcome: extent of yield decreasee1
Setting: Aomori prefecturee0

Not reportedDirection

Verbatim

e0
“distribution of rice yield in Aomori prefecture in 1971”
✓ located verbatim in the source · abstract, characters 37–92

e1
“relative correlation among the extent of yield decrease and “ripening temperature””
✓ located verbatim in the source · abstract, characters 430–512

Title

Studies on Forecast of Cool Weather Damage of Rice Growth in Aomori Prefecture

Izo ABE; Kiyoji ONO Journal of Agricultural Meteorology 1974. doi:10.2480/agrmet.30.117

Other claims from this paper (2)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The yield decrease under continuous direct sowing occurred only in soils low in available phosphorus.

Taxon: riceOryza sativat0
Treatment: continuous direct sowing culturee1
Outcome: decrease of yielde1
Direction: decreasee1
Qualifier: only in such soils that were low in available phosphorus contente1

Verbatim

t0
“Rice Yield Decrease Resulting from Continual Direct Sowing Culture”
✓ located verbatim in the source · title, characters 25–91

e1
“the decrease of yield in the continuous direct sowing culture caused by the shortage of phosphorus absorption could be recognized only in such soils that were low in available phosphorus content”
✓ located verbatim in the source · abstract, characters 2078–2272

Title

Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : II. In relation to phosphorus nutrition

Yoshimasa UEMURA; AKIRA MIYASAKA Japanese Journal of Crop Science 1973. doi:10.1626/jcs.42.116

Other claims from this paper (9)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Fruit yield tended to decrease as budding height increased.

Taxon: Citrus sinensisCitrus sinensise0
Treatment: budding heighte2
Outcome: Fruit yielde1
Direction: decreasee2
Qualifier: tendede2

Verbatim

e0
“orange ( Citrus sinensis (L.) Osbeck)”
✓ located verbatim in the source · abstract, characters 191–228

e1
“Fruit yield was highest from trees budded at 15 cm height above the ground”
✓ located verbatim in the source · abstract, characters 285–359

e2
“tended to decrease as budding height increased”
✓ located verbatim in the source · abstract, characters 364–410

Title

Influence of Budding Height on Performance of ‘Valencia’ Sweet Orange on Two Rootstocks1

C. K. Labanauskas; W. P. Bitters; C. D. McCarty HortScience 1976. doi:10.21273/hortsci.11.2.117

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Under limiting Zn, grain yield tended to decrease as young-tissue P concentration increased.

Taxon: cornZea mays subsp. mayst0
Outcome: grain yieldse0
Direction: decreasee0
Qualifier: increasing P concentrations in young plant tissuese0

Not reportedMaterialGeneInteractorInteractor roleTreatmentComparatorSettingValue

Verbatim

e0
“When Zn was limiting, grain yields tended to decrease with increasing P concentrations in young plant tissues.”
✓ located verbatim in the source · abstract, characters 1045–1155

t0
“Corn”
✓ located verbatim in the source · title, characters 83–87

Title

Effects of Ammonium Polyphosphates on Yield¹ and Chemical Composition of Irrigated Corn

D. C. Adriano; L. S. Murphy Agronomy Journal 1970. doi:10.2134/agronj1970.00021962006200050003x

Other claims from this paper (9)

Intervention effect Banded P at 40 kg/ha increased Zn deficiency severity.
Intervention effect ZnSO4 at 11.2 kg Zn/ha corrected deficiency in banded-P corn.
Intervention effect Banded APP tended to induce more severe Zn deficiency than MAP with inadequate Zn.
Intervention effect With adequate Zn, APP and MAP produced comparable growth and grain yields.
Association Yield depressions under banded APP without adequate Zn were associated with higher plant P content than MAP.
Association High plant P levels co-occurred with low plant Zn levels.
Intervention effect Banded P raised plant P concentrations relative to broadcast P.
Intervention effect Banded P caused more severe Zn deficiency than broadcast P.
Association With adequate Zn, young-tissue P concentration correlated positively with grain yield.

“yield decrease”

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