Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The yield reduction reflected fewer fruit.

Taxon: tomatoSolanum lycopersicumt0
Outcome: number of fruite0
Direction: decreasee0

Verbatim

e0
“This reduction was due to a decrease in the number of fruit and not to a decrease in fruit weight”
✓ located verbatim in the source · abstract, characters 421–518

t0
“Tomato”
✓ located verbatim in the source · title, characters 74–80

e1
“A commercial variety of pole tomato ( Lycopersicon esculentum Mill. H‐11) was exposed to 20 and 35 parts per hundred million (pphm) ozone”
✓ located verbatim in the source · abstract, characters 9–146

Title

Effect of Ozone on the Yield and Plant Biomass of a Commercial Variety of Tomato

R. J. Oshima; O. C. Taylor; P. K. Braegelmann; et al. Journal of Environmental Quality 1975. doi:10.2134/jeq1975.00472425000400040008x

Other claims from this paper (7)

Intervention effect Both ozone doses caused extensive foliar injury and defoliation.
Intervention effect Both ozone doses significantly reduced plant biomass.
Intervention effect Fruit yield declined significantly only at 35 pphm ozone.
Observation Fruit weight did not decrease.
Intervention effect Yield at 20 pphm equaled the control.
Intervention effect Total plant dry weight fell 27% at 20 pphm.
Mechanism The authors infer a yield threshold for ozone.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Crops with a significant yield decrease from excess Zn were stunted but showed no discoloration, malformation or necrosis indicative of direct metal toxicity.

Taxon: Cropse0
Outcome: stunted but showed no discoloration, malformation, or necrosise0

Not reportedDirection

Verbatim

e0
“Crops that underwent a significant YD because of excess Zn were stunted but showed no discoloration, malformation, or necrosis”
✓ located verbatim in the source · abstract, characters 1194–1320

Title

Crop Response to Excessive Zinc Fertilization of Alkaline Soil¹

Louis C. Boawn; P. E. Rasmussen Agronomy Journal 1971. doi:10.2134/agronj1971.00021962006300060015x

Other claims from this paper (7)

Intervention effectobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

An apparent decrease in potato yield after discing without chemical weed control was not significant.

Taxon: potatoesSolanum tuberosume1
Treatment: discinge0
Outcome: yieldse0
Direction: lowere0

Not reportedComparator

Verbatim

e0
“an apparent trend to lower yields after discing in the absence of chemical methods of weed control had not reached significance by the end of the experiment”
✓ located verbatim in the source · abstract, characters 1610–1766

e1
“yields of potatoes”
✓ located verbatim in the source · abstract, characters 1520–1538

Title

Long-term effects of primary cultivations on crop yields in a four-course rotation

E. J. Allen; M. G. Barker The Journal of Agricultural Science 1972. doi:10.1017/s0021859600087694

Other claims from this paper (11)

Intervention effect Barley yield did not differ among cultivation methods with chemical weed control.
Intervention effect Without chemical weed control, deeper cultivation produced higher barley yield than discing late in the experiment.
Intervention effect Ploughing generally produced the highest wheat yields.
Intervention effect After ley, rotary cultivation produced higher wheat yields than cultivating or discing.
Intervention effect Discing gave relatively low wheat yields, particularly with cultural weed control at lower fertility.
Intervention effect Ploughing produced higher sugar yields than cultivating or discing in all rotations.
Intervention effect Rotary cultivation matched ploughing for sugar-beet yield in the second rotation, but did not consistently exceed cultivating or discing in the others.
Intervention effect Discing without chemical weed control markedly reduced sugar-beet yields in the last rotation.
Intervention effect Ploughing produced the highest potato yields.
Intervention effect Potato yields did not differ consistently among the other cultivation methods.
Recommendation The authors concluded ploughing was the more reliable seedbed preparation method.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Increase in soil temperature was associated with a decrease in individual leaf size in maize.

Taxon: maizeZea mayst0
Treatment: increase in soil temperaturee0
Outcome: individual leaf sizee0
Direction: decreasee0

Verbatim

t0
“maize”
✓ located verbatim in the source · title, characters 76–81

e0
“increase in soil temperature was associated with a decrease in individual leaf size”
✓ located verbatim in the source · abstract, characters 730–813

Title

Enhanced soil temperature during very early growth and its association with maize development and yield in the Highlands of Kenya

P. J. M. Cooper; R. Law The Journal of Agricultural Science 1978. doi:10.1017/s0021859600059955

Other claims from this paper (9)

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Fruit weight did not decrease.

Taxon: tomatoSolanum lycopersicumt0
Outcome: fruit weighte0
Direction: not to a decreasee0

Verbatim

e0
“not to a decrease in fruit weight”
✓ located verbatim in the source · abstract, characters 485–518

t0
“Tomato”
✓ located verbatim in the source · title, characters 74–80

e1
“A commercial variety of pole tomato ( Lycopersicon esculentum Mill. H‐11) was exposed to 20 and 35 parts per hundred million (pphm) ozone”
✓ located verbatim in the source · abstract, characters 9–146

Title

Effect of Ozone on the Yield and Plant Biomass of a Commercial Variety of Tomato

R. J. Oshima; O. C. Taylor; P. K. Braegelmann; et al. Journal of Environmental Quality 1975. doi:10.2134/jeq1975.00472425000400040008x

Other claims from this paper (7)

Intervention effect Both ozone doses caused extensive foliar injury and defoliation.
Intervention effect Both ozone doses significantly reduced plant biomass.
Intervention effect Fruit yield declined significantly only at 35 pphm ozone.
Observation The yield reduction reflected fewer fruit.
Intervention effect Yield at 20 pphm equaled the control.
Intervention effect Total plant dry weight fell 27% at 20 pphm.
Mechanism The authors infer a yield threshold for ozone.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The observed decrease from negative selection for protein was generally greater than predicted.

Taxon: PeasLathyrus oleraceust0
Treatment: negative selectione5
Outcome: The observed decreasee5
Direction: generally greatere5
Value: ‒0.75 to ‒7.05%e5
Qualifier: ‒2.18 to ‒4.62%e5
Comparator: that predictede5

Verbatim

t0
“Response to Selection for Protein and Yield in Peas”
✓ located verbatim in the source · title, characters 23–74

e5
“The observed decrease (‒0.75 to ‒7.05%) in the same trait for negative selection was generally greater than that predicted (‒2.18 to ‒4.62%)”
✓ located verbatim in the source · abstract, characters 935–1075

Title

Observed and Predicted Response to Selection for Protein and Yield in Peas¹

Shivaji Pandey; E. T. Gritton Crop Science 1976. doi:10.2135/cropsci1976.0011183x001600020034x

Other claims from this paper (10)

Intervention effect Mean protein of progeny from selection for protein was generally lower than the higher parent.
Intervention effect Seed yield per plant from selection for seed yield was generally higher than the midparent.
Observation Narrow sense heritability values varied with crosses and generations in peas.
Association Narrow sense heritability was generally greater for protein than for seed yield in peas, at 17 to 56 percent for protein.
Observation Narrow sense heritability for seed yield in peas was 0 to 41 percent.
Intervention effect The observed change from selecting for higher protein was generally less than predicted.
Intervention effect The observed increase in yield from selection was variable relative to the predicted increase.
Intervention effect The observed decrease in yield from negative selection was generally greater than predicted.
Observation Correlations between protein and seed yield were small and inconsistent in peas.
Intervention effect Selection for protein and seed yield appears to be effective even in early generations.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Contributions of the flag leaf and fourth leaf estimated from the grain-yield decrease under shading agreed closely with 14CO2 estimates.

Taxon: Sorghum vulgareSorghum bicolort0
Outcome: percentage contributions to the graine0
Direction: agreed closelye0
Comparator: estimates obtained by using 14CO2e0

Verbatim

e0
“The percentage contributions to the grain by the flag leaf and fourth leaf, estimated from the decrease in grain yield when they were shaded, agreed closely with the estimates obtained by using 14CO2”
✓ located verbatim in the source · abstract, characters 801–1000

t0
“Sorghum vulgare”
✓ located verbatim in the source · title, characters 31–46

Title

Studies of grain production in Sorghum vulgare . II. Sites responsible for grain dry matter production during the post-anthesis period

KS Fischer; GL Wilson Australian Journal of Agricultural Research 1971. doi:10.1071/ar9710039

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Potassium application decreased soybean yield in one year at one location.

Taxon: SoybeanGlycine maxt0
Treatment: Potassium applicatione0
Outcome: yielde0
Direction: decreasee0
Qualifier: one year at one locatione0

Verbatim

e0
“Potassium application was related to a decrease in yield in one year at one location”
✓ located verbatim in the source · abstract, characters 314–398

t0
“Soybean (Glycine max (L.) Merr.)”
✓ located verbatim in the source · title, characters 0–32

Title

Soybean (Glycine max (L.) Merr.) yield and disease incidence with potassium fertilization

L. V. Svec; A. K. Andrews; H. W. Crittenden Communications in Soil Science and Plant Analysis 1976. doi:10.1080/00103627609366682

Other claims from this paper (7)

Intervention effect Potassium application had no significant yield effect in the other year or at the other location.
Association Cultivars differed in yield over two years.
Observation Kent, Cutler 71 and York had the most consistent yield.
Intervention effect Potassium application did not affect pathogen incidence.
Association Gray-moldy and purple-stain were highest in short season cultivars.
Association Gray-moldy and purple-stain were higher at Georgetown than Newark.
Recommendation The authors recommend disease-resistant soybean cultivars and adequate soil potassium to reduce disease.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield components declined with aged rice seedlings.

Taxon: RiceOryza sativat0
Treatment: Planting aged seedlingse1
Outcome: yield componentse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“An evaluation of the yield components brought out decrease in the menn expression of yield components.”
✓ located verbatim in the source · abstract, characters 551–653

e1
“Planting aged seedlings resulted in increase in field duration and reduction in grain yielle.”
✓ located verbatim in the source · abstract, characters 167–260

t0
“Rice”
✓ located verbatim in the source · title, characters 46–50

Title

Studies on Genotypes. Age and Productivity in Rice

Principal (Plant Breeding)Krishi Vigyan Kendra , Pondicherry; SREE RANGASAMY S.R; NARAYANASAMY P; et al. Madras Agricultural Journal 1977. doi:10.29321/maj.10.a03263

Other claims from this paper (7)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Lower than expected lint percentage partially caused the yield shortfall.

Taxon: Gossypium hirsutumGossypium hirsutume1
Outcome: decrease in expected yielde0
Qualifier: lower than expected lint percentagee0

Verbatim

e0
“The decrease in expected yield was partially caused by a lower than expected lint percentage.”
✓ located verbatim in the source · abstract, characters 1348–1441

e1
“cotton ( Gossypium hirsutum L.)”
✓ located verbatim in the source · abstract, characters 72–103

Title

Backcross Breeding to Increase Fiber Strength of Cotton¹

William Meredith Crop Science 1977. doi:10.2135/cropsci1977.0011183x001700010045x

Other claims from this paper (7)

Observation Mean fiber strength differed across DPL 16, FTA and three backcross generations.
Intervention effect Backcross breeding maintained a satisfactory fiber strength level.
Observation Observed BC 3 F 3 average line yield was 9.8% below expectation.
Observation Lint yield varied significantly among four sets.
Observation The highest yielding family was 5.3% below expected yield.
Observation The highest yielding family had above average fiber strength of T 1 = 217.
Observation Authors judge backcross breeding moderately successful for combining yield and fiber strength.

“yield decrease”

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