Search claims · PlantClaims

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sulphur dioxide did not decrease alfalfa yield under any of the conditions studied.

Taxon: alfalfaMedicago sativae0
Treatment: sulphur dioxide treatmente0
Outcome: yield of alfalfae0
Direction: no_changeinferrede0
Qualifier: under none of the conditions studiede0

Not reportedComparator

Verbatim

e0
“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”
✓ located verbatim in the source · abstract, characters 419–515

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Minor leaf injuries did not significantly decrease yield.

Taxon: cornZea mays subsp. mayst0
Treatment: Minor leaf injuriese0
Outcome: yielde0
Direction: did not result in significant decreasese0

Not reportedComparator

Verbatim

e0
“Minor leaf injuries which were designed to upset the elaboration and translocation of synthesized plant food did not result in significant decreases in yield”
✓ located verbatim in the source · abstract, characters 1392–1549

t0
“corn plant”
✓ located verbatim in the source · title, characters 75–85

Title

The effect of injury in imitation of hail damage on the development of the corn plant

J. C. Eldredge Iowa State University Digital Repository (Iowa State University) 1935

Other claims from this paper (19)

Intervention effect Total leaf removal reduced corn yield in proportion to unrolled leaf percentage.
Intervention effect Total leaf removal caused 9 percent yield reduction in early June.
Intervention effect Total leaf removal caused 100 percent yield reduction near July 20 before tasseling.
Intervention effect Severe shredding reduced early-June yield by 2 percent.
Intervention effect Severe shredding caused 50 percent yield reduction before tasseling.
Intervention effect Removing one-third of leaves caused 30 percent yield reduction at tasseling-silking.
Intervention effect Removing two-thirds of leaves caused 70 percent yield reduction at tasseling-silking.
Intervention effect Removing half of each leaf before tasseling reduced yield 27 percent.
Intervention effect Removing half of each leaf at full tasseling reduced yield 33 percent.
Intervention effect Removing half of each leaf at milk stage reduced yield 13 percent.
Intervention effect Severe bruising of stalks and ears before tasseling reduced yield 20 percent.
Intervention effect Combined bruising and shredding reduced yield 64 percent before tasseling.
Intervention effect Combined bruising and shredding reduced yield 77 percent at tasseling.
Intervention effect Corn strains did not significantly differ in yield reduction from severe shredding.
Intervention effect Under severe drought, leaf and stalk injury reduced yield less than in normal seasons.
Intervention effect In June drought, injured plots yielded somewhat more than checks.
Intervention effect Leaf and stalk injury usually caused little reduction in kernel development by bushel test weight.
Intervention effect Ear bruising produced 2 to 3 percent damaged kernels.
Intervention effect Injury before tasseling increased smutted plants; other corn diseases showed no noticeable increase.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Under most conditions sulphur dioxide had no significant effect on alfalfa yield.

Taxon: alfalfaMedicago sativae0
Treatment: sulphur dioxidee0
Outcome: yielde1
Direction: no significant effecte1
Qualifier: under most of the conditionse1

Not reportedComparator

Verbatim

e0
“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”
✓ located verbatim in the source · abstract, characters 419–515

e1
“under most of the conditions it had no significant effect on yield”
✓ located verbatim in the source · abstract, characters 517–583

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Plant age and the amount of supplied nutrients had no effect on the alfalfa yield response to sulphur dioxide.

Taxon: alfalfaMedicago sativae0
Treatment: amount of supplied nutrientse1
Outcome: yield response to the gas treatmente1
Direction: no effecte1
Qualifier: Age of plants and the amount of supplied nutrientse1

Verbatim

e0
“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”
✓ located verbatim in the source · abstract, characters 419–515

e1
“Age of plants and the amount of supplied nutrients had no effect on the yield response to the gas treatment”
✓ located verbatim in the source · abstract, characters 798–905

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Neither sulphur dioxide, water supply nor sulphur content of the nutrient supply affected alfalfa nitrogen content.

Taxon: alfalfaMedicago sativae1
Treatment: sulphur dioxidee1
Outcome: nitrogen contente1
Direction: no_changeinferrede1
Qualifier: water supply, nor sulphur content of nutrient supplye1

Verbatim

e0
“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”
✓ located verbatim in the source · abstract, characters 419–515

e1
“neither sulphur dioxide, water supply, nor sulphur content of nutrient supply had significant effect on nitrogen content of the alfalfa”
✓ located verbatim in the source · abstract, characters 1650–1785

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

One barley variety showed unchanged thousand-grain weight.

Taxon: barleyHordeum vulgaret0
Treatment: low-temperature grain pre-treatmentt1
Outcome: 1000-grain weighte2
Direction: unaffectede0

Not reportedComparator

Verbatim

e0
“one being unaffected, another showing a decrease, while the third showed an increase.”
✓ located verbatim in the source · abstract, characters 1326–1411

t0
“wheat and barley”
✓ located verbatim in the source · title, characters 107–123

t1
“low-temperature grain pre-treatment”
✓ located verbatim in the source · title, characters 14–49

e2
“Only one wheat variety showed an increase in 1000-grain weight”
✓ located verbatim in the source · abstract, characters 1051–1113

Title

The effect of low-temperature grain pre-treatment on the development, yield and grain of some varieties of wheat and barley

G. D. H. Bell The Journal of Agricultural Science 1937. doi:10.1017/s0021859600051674

Other claims from this paper (17)

Intervention effect Pretreatment reduced tiller number in winter wheat and barley.
Intervention effect Pretreatment did not affect ear number at harvest.
Intervention effect Spring wheat tillers decreased slightly.
Intervention effect Gross plot yields were unaffected in all varieties.
Intervention effect Yield per plant generally increased in wheat varieties.
Intervention effect One barley variety showed unchanged yield per ear.
Intervention effect Another barley variety showed increased yield per ear.
Intervention effect A third barley variety showed reduced yield per ear.
Intervention effect One wheat variety showed increased thousand-grain weight.
Intervention effect Wheat varieties differed in grain nitrogen response.
Intervention effect Another barley variety showed decreased thousand-grain weight.
Intervention effect A third barley variety showed increased thousand-grain weight.
Association Maximum tiller number had little relation to ear number at harvest.
Association High barley yield and low nitrogen accompanied the largest ear number.
Association In barley the largest ear number accompanied lowest tillering.
Association In wheat high yield associated with high thousand-grain weight.
Observation Spring varieties outyielded winter varieties in both experiments.

“yield decrease”

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