Search claims · PlantClaims

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Whole plot planting and fertilization treatments generally did not differ significantly in corn grain yield.

Taxon: CornZea mays subsp. mayst0
Treatment: Whole plot treatmentse0
Outcome: grain yielde0
Direction: did not differe0
Comparator: Whole plot treatmentse0

Verbatim

t0
“Corn”
✓ located verbatim in the source · title, characters 63–67

e0
“Whole plot treatments generally did not differ significantly in grain yield.”
✓ located verbatim in the source · abstract, characters 1269–1345

Title

Planting Method and Fertilization Timing Effects on Ridge-Till Corn

Keith A. Kohler; Mohammadreza Ghaffarzadeh; Richard M. Cruse UNI ScholarWorks (University of Northern Iowa) 1999

Other claims from this paper (3)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Within-plot seed-size variation did not affect total grain yield.

Taxon: spring wheatTriticum aestivumt0
Treatment: variation in seed size within a plote0
Outcome: total grain yield per plote0
Direction: no impacte0

Not reportedComparator

Verbatim

t0
“spring wheat”
✓ located verbatim in the source · title, characters 104–116

e0
“variation in seed size within a plot had no impact on total grain yield per plot”
✓ located verbatim in the source · abstract, characters 1462–1542

Title

Effect of variations in seed size and planting depth on emergence, infertile plants, and grain yield of spring wheat

Y. Gan; E. H. Stobbe Canadian Journal of Plant Science 1995. doi:10.4141/cjps95-098

Other claims from this paper (12)

Intervention effect Within-row variation in seed size did not affect percentage emergence.
Intervention effect Within-row variation in planting depth did not affect percentage emergence.
Intervention effect Nonuniform planting depth increased infertile plants, mainly among late emergers.
Observation Mainstem grain yield was relatively uniform among individual plants.
Observation Tiller grain yield was highly variable among individual plants.
Intervention effect Small-seeded plants at 75 mm yielded 34% less tiller grain than neighboring large-seeded plants.
Intervention effect Large-seeded plants in mixed-size plots had 10% higher tiller yield than those in uniform large-seed plots.
Intervention effect Deep-seeded plants in variable-depth plots yielded only 20% of neighboring shallow-seeded plants.
Intervention effect Deep-seeded plants in variable-depth plots yielded only 26% of plants in uniform deep plots.
Intervention effect Within-plot planting-depth variation increased infertile plants by up to 158%.
Intervention effect Within-plot planting-depth variation decreased grain yield.
Recommendation The authors recommend uniform, shallow planting depth to maximize wheat grain yield.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Increasing plot length from 6.10 to 15.25m did not negate the end-of-plot yield effect.

Taxon: soybeanGlycine maxe0
Treatment: increasing plot length from 6.10 to 15.25me0
Outcome: end‐of‐plot effect on yielde0
Direction: did not negatee0

Not reportedComparator

Verbatim

e0
“increasing plot length from 6.10 to 15.25m and decreasing alley width from 2.45 to 0.90 m did not negate the end‐of‐plot effect on yield of soybean grown in nonirrigated field plots”
✓ located verbatim in the source · abstract, characters 1306–1487

Title

Response of Nonirrigated Maturity Group V Determinate Soybean to End‐Trimming

Larry G. Heatherly; Jeffrey. M. Tyler Crop Science 1998. doi:10.2135/cropsci1998.0011183x003800010046x

Other claims from this paper (8)

Observation The three soybean cultivars responded similarly in yield to all tested factors.
Association End-trim length was the only factor with a significant effect on average soybean yield.
Observation Untrimmed plots yielded 2573k g ha −1 on average.
Intervention effect Trimming 0.45 m produced an average yield of 2356k g ha −1.
Intervention effect Trimming 0.90 m produced an average yield of 2 337k g ha −1.
Intervention effect Decreasing alley width from 2.45 to 0.90 m did not negate the end-of-plot yield effect.
Recommendation The authors recommend end trimming soybean plots within the tested dimensions to eliminate end-of-plot effects.
Recommendation The authors recommend 6.1-m plots and 0.90-m alleys to conserve field space.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Plant density did not change soybean plot yield.

Taxon: soybeanGlycine maxt0
Treatment: Plant densitye0
Outcome: plot yieldse0
Direction: did not influencee0

Not reportedComparator

Verbatim

e0
“Plant density did not influence plot yields but did affect yield components of injured and uninjured plants.”
✓ located verbatim in the source · abstract, characters 787–895

t0
“soybean, Glycine max (L.) Merr.”
✓ located verbatim in the source · abstract, characters 269–300

Title

Soybean Yield Responses and Intraspecific Competition from Simulated Seedcorn Maggot Injury

Leon G. Higley; Larry P. Pedigo Agronomy Journal 1991. doi:10.2134/agronj1991.00021962008300010031x

Other claims from this paper (8)

Intervention effect Plant density affected yield components of injured and uninjured soybean.
Association Injured plant proportion affected plot yield in 1983 and 1984.
Association Injured plant proportion did not affect plot yield in 1985 or 1986.
Observation Uninjured soybean competed more strongly than injured soybean.
Mechanism Competition from uninjured plants reduced injured soybean yield.
Mechanism Competition appeared to increase shading of injured soybean.
Mechanism Competition appeared to reduce assimilate availability of injured soybean.
Method / resource Replacement series design was effective for describing competition after insect injury.

Method / resourceobservedoriginal resultno effectmeasured

Claim · model-written summary

The F1 generation showed no association with F4 hill-plot yield (r = -0.02).

Taxon: triticales×Triticosecalet0
Outcome: association with F4 hill-plot yielde1
Value: -0.02¦0.12e1

Verbatim

t0
“The predictive value of parental, F1 and early generation hill-plot testing for yield among rapidly advanced hexaploid triticales”
✓ located verbatim in the source · title, characters 0–129

e1
“The F1 (r = -0.02¦0.12) provided no association with F4 hill-plot yield”
✓ located verbatim in the source · abstract, characters 1026–1097

Title

The predictive value of parental, F1 and early generation hill-plot testing for yield among rapidly advanced hexaploid triticales

RM Trethowan; NL Darvey Australian Journal of Agricultural Research 1994. doi:10.1071/ar9940051

Other claims from this paper (10)

Method / resource Mid-parent, F2 and F3 hill-plot yield predicted F4 hill-plot yield at least as well as dry matter and harvest index.
Observation Average heterosis for yield in this triticale material was 22%.
Association Hill-plot yield correlated with large-plot grain yield at the same site in the same year (r = 0.54).
Association Dry matter correlated with large-plot grain yield at the same site in the same year (r = 0.51).
Method / resource Mid-parent hill-plot yield was a best predictor of F4 hill-plot yield (phenotypic correlation 0.26).
Method / resource F2 hill-plot yield was a best predictor of F4 hill-plot yield (phenotypic correlation 0.35).
Method / resource F3 hill-plot yield was a best predictor of F4 hill-plot yield (phenotypic correlation 0.44).
Intervention effect Dry matter and yield means were lower in inter-karyotypic crosses than in intra-karyotypic crosses.
Association The relationship between generations appeared to be independent of karyotype.
Intervention effect Visual selection of individual spikes from hill-plots gave a response for dry matter and grain yield at two sites.

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Marketable fresh yield and seed yield did not differ among sub-plot foliar fertilizer treatments.

Taxon: cucumberCucumis sativuse0
Treatment: sub-plot treatmentse4
Outcome: marketable fresh yield and seed yielde4
Direction: did not differe4

Verbatim

e0
“A factorial experiment was conducted under controlled screenhouse conditions to determine the effects and interaction of plant population density (main plot) and supplemental foliar fertilizer (sub-plot) on the fresh and seed yield of Cu-6 (Pilmaria), a locally-developed pickling cucumber variety”
✓ located verbatim in the source · abstract, characters 0–297

e4
“The marketable fresh yield and seed yield also did not differ among sub-plot treatments”
✓ located verbatim in the source · abstract, characters 747–834

Title

Effect of plant population density and foliar fertilizers on fresh yield and seed production of cucumber cv. Pilmaria

C.H. Balatero; J.A. Tandang 1995

Other claims from this paper (5)

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Yield per seed head was not correlated with the final number of heads per plot in barley.

Taxon: barleyHordeum vulgaret0
Outcome: yield per seed heade5
Direction: not correlatede5
Comparator: final number of heads per plote5

Verbatim

t0
“mixtures of barley cultivars”
✓ located verbatim in the source · title, characters 66–94

e5
“yield per seed head was not correlated with the final number of heads per plot”
✓ located verbatim in the source · abstract, characters 926–1004

Title

Host frequency and density effects on powdery mildew and yield in mixtures of barley cultivars

Finckh; Gacek; Czembor; et al. Plant Pathology 1999. doi:10.1046/j.1365-3059.1999.00398.x

Other claims from this paper (8)

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Injured plant proportion did not affect plot yield in 1985 or 1986.

Taxon: soybeanGlycine maxt0
Material: injured to uninjured plantse0
Outcome: plot yieldse0
Direction: not in 1985 or 1986e0

Verbatim

e0
“The proportion of injured to uninjured plants influenced plot yields in 1983 and 1984 but not in 1985 or 1986.”
✓ located verbatim in the source · abstract, characters 896–1006

t0
“soybean, Glycine max (L.) Merr.”
✓ located verbatim in the source · abstract, characters 269–300

Title

Soybean Yield Responses and Intraspecific Competition from Simulated Seedcorn Maggot Injury

Leon G. Higley; Larry P. Pedigo Agronomy Journal 1991. doi:10.2134/agronj1991.00021962008300010031x

Other claims from this paper (8)

Intervention effect Plant density did not change soybean plot yield.
Intervention effect Plant density affected yield components of injured and uninjured soybean.
Association Injured plant proportion affected plot yield in 1983 and 1984.
Observation Uninjured soybean competed more strongly than injured soybean.
Mechanism Competition from uninjured plants reduced injured soybean yield.
Mechanism Competition appeared to increase shading of injured soybean.
Mechanism Competition appeared to reduce assimilate availability of injured soybean.
Method / resource Replacement series design was effective for describing competition after insect injury.

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

In a drought-stressed year, leaf stage at infestation was independent of corn plot yield.

Taxon: cornZea mays subsp. mayse0
Treatment: leaf stagee5
Outcome: plot yielde5
Qualifier: in a drought-stressed yeare5

Not reportedDirection

Verbatim

e0
“two fullseason corn (Zea mays L.) hybrids infested by stalk borer larvae, Papaipema nebris (Guenée), at leaf stages 1 through 7”
✓ located verbatim in the source · abstract, characters 66–193

e5
“in a drought-stressed year, leaf stage was independent of plot yield”
✓ located verbatim in the source · abstract, characters 962–1030

Title

Yield Response of Corn Stands to Stalk Borer (Lepidoptera: Noctuidae) Injury Imposed During Early Development

P. M. Davis; L. P. Pedigo Journal of Economic Entomology 1990. doi:10.1093/jee/83.4.1582

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Decreasing alley width from 2.45 to 0.90 m did not negate the end-of-plot yield effect.

Taxon: soybeanGlycine maxe0
Treatment: decreasing alley width from 2.45 to 0.90 me0
Outcome: end‐of‐plot effect on yielde0
Direction: did not negatee0

Not reportedComparator

Verbatim

e0
“increasing plot length from 6.10 to 15.25m and decreasing alley width from 2.45 to 0.90 m did not negate the end‐of‐plot effect on yield of soybean grown in nonirrigated field plots”
✓ located verbatim in the source · abstract, characters 1306–1487

Title

Response of Nonirrigated Maturity Group V Determinate Soybean to End‐Trimming

Larry G. Heatherly; Jeffrey. M. Tyler Crop Science 1998. doi:10.2135/cropsci1998.0011183x003800010046x

Other claims from this paper (8)

Observation The three soybean cultivars responded similarly in yield to all tested factors.
Association End-trim length was the only factor with a significant effect on average soybean yield.
Observation Untrimmed plots yielded 2573k g ha −1 on average.
Intervention effect Trimming 0.45 m produced an average yield of 2356k g ha −1.
Intervention effect Trimming 0.90 m produced an average yield of 2 337k g ha −1.
Intervention effect Increasing plot length from 6.10 to 15.25m did not negate the end-of-plot yield effect.
Recommendation The authors recommend end trimming soybean plots within the tested dimensions to eliminate end-of-plot effects.
Recommendation The authors recommend 6.1-m plots and 0.90-m alleys to conserve field space.

“yield/plot”

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