Search claims · PlantClaims

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

In 1981 a decrease in grain yield of about 25% was associated with an increase in straw growth.

Taxon: spring wheatTriticum aestivume0
Organ / stage: graine2
Outcome: grain yielde2
Direction: decreasee2
Value: about 25%e2
Qualifier: In 1981e2

Verbatim

e0
“The effects of inoculation with the vesicular-arbuscular mycorrhizal fungus Olomics mosseae (Nicolson & Gerdemann) Gerdemann and Trappe, fumigation of soil with methyl bromide, and addition of superphosphate (up to 60 kg P/ha) on growth and phosphorus nutrition of spring wheat ( Triticum aestivum L. cv. Highbury) were investigated in two experiments (in 1980 and 1981 respectively) on plots that had been fallowed and …” Show full quote
✓ located verbatim in the source · abstract, characters 8–442

e2
“In 1981 a decrease in grain yield of about 25% was accompanied by an increase in growth of straw”
✓ located verbatim in the source · abstract, characters 570–666

Title

Effects of vesicular-arbuscular mycorrhizal infection in first, second and third cereal crops

J. G. Buwalda; D. P. Stribley; P. B. Tinker The Journal of Agricultural Science 1985. doi:10.1017/s0021859600059542

Other claims from this paper (18)

Intervention effect Fumigation of soil with methyl bromide severely reduced natural levels of mycorrhizal infection in wheat.
Intervention effect Fumigation slightly reduced above-ground dry matter yield of wheat in both years.
Association In 1981 an increase in straw growth accompanied the decrease in grain yield.
Observation Wheat plants on fumigated plots contained appreciable amounts of bromine in shoot tissue.
Intervention effect Inoculation with Olomics mosseae increased mycorrhizal infection in all treatments.
Intervention effect Added P decreased mycorrhizal infection in all treatments.
Intervention effect In 1980 inoculation had little effect on above-ground dry matter of wheat.
Intervention effect In 1980 inoculation increased P concentration in wheat shoots, especially on plots without added P.
Intervention effect In 1981 added inoculum increased grain yield on fumigated plots by about 0.75 t/ha at all levels of added P.
Intervention effect In 1981 added inoculum had little effect on grain yield on non-fumigated plots.
Intervention effect Grain production responses to added P were similar with and without fumigation.
Association Increases in wheat yield from inoculation were generally accompanied by increases in P concentration in plant tissue.
Observation Mycorrhizal infection levels on non-fumigated, inoculated plots were relatively constant in successive crops.
Observation Numbers of mycorrhizal fungal propagules increased significantly with time for all treatments.
Observation Infection levels on fumigated and non-inoculated plots increased in successive crops.
Association The relative effects of fumigation and of inoculation declined with time.
Association Effects of inoculation on infection levels persisted for longer than effects on yields.
Intervention effect Harvest yields continued to respond to applied phosphorus even when uniformly high levels of infection had been established.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Blending pure lines did not decrease charcoal rot infection.

Taxon: soybeanGlycine maxe1
Treatment: blending pure linese0
Interactor: charcoal rotMacrophomina phaseolinae0pathogen
Outcome: charcoal rot infectione0
Direction: no benefite0

Not reportedComparator

Verbatim

e0
“There was no benefit in blending pure lines either in increased yield or decreased charcoal rot infection”
✓ located verbatim in the source · abstract, characters 1508–1613

e1
“of soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 53–89

Title

Relationships among Charcoal Rot Infection, Yield, and Stability Estimates in Soybean Blends

C. R. Bowen; W. T. Schapaugh Crop Science 1989. doi:10.2135/cropsci1989.0011183x002900010009x

Other claims from this paper (9)

Intervention effect Reducing planting rate from 30 to 20 seeds per meter significantly lowered charcoal rot infection.
Intervention effect Reducing planting rate did not reduce soybean yield.
Association Reproductive growth stage had a linear association with charcoal rot infection level.
Association Genotype did not significantly affect infection after controlling for reproductive stage.
Association Infection level correlated with response, a relative performance measure across environments.
Association Response and biological stability estimates were significantly correlated.
Association Deviations from response, r 2, and ecovalance were significantly correlated.
Recommendation The authors suggest full-season cultivars to reduce charcoal rot.
Intervention effect Blending pure lines did not increase yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Amsoy 71 yield decreased with acidity in one of three years.

Taxon: SoybeanGlycine maxt0
Material: Amsoy 71e0
Treatment: increasing rainfall aciditye0
Outcome: yielde0
Direction: decreasee0
Value: 1 of 3 yre0

Not reportedComparator

Verbatim

e0
“For Amsoy 71 there was a linear decrease in yield with increasing rainfall acidity for 1 of 3 yr”
✓ located verbatim in the source · abstract, characters 565–661

t0
“Soybean”
✓ located verbatim in the source · title, characters 56–63

Title

Effects of Simulated Acid Rain on Yield Response of Two Soybean Cultivars

P. M. Porter; W. L. Banwart; J. J. Hassett; et al. Journal of Environmental Quality 1987. doi:10.2134/jeq1987.00472425001600040024x

Other claims from this paper (6)

Intervention effect Amsoy 71 yield had no significant acidity effect in the other two years.
Intervention effect At pH 3.0 Amsoy 71 yield averaged about 3% lower.
Intervention effect At pH 3.0 Williams 82 yield averaged about 4% lower.
Intervention effect A 50% acidity rise was predicted to reduce Amsoy 71 yield by under 1%.
Intervention effect A 50% acidity rise was predicted to reduce Williams 82 yield by under 1%.
Intervention effect A 50% acidity reduction was expected to raise cultivar yields by at most 1%.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The 1800 ppm foliar rate can decrease head size and percent salable heads of lettuce.

Taxon: Lactuca sativaLactuca sativae0
Treatment: 1800 ppm foliar ratee5
Outcome: head size and percent salable headse5
Direction: decreasee5
Qualifier: cane5

Not reportedComparator

Verbatim

e0
“Lactuca sativa L.”
✓ located verbatim in the source · abstract, characters 31–48

e5
“The 1800 ppm foliar rate is undesirable since it can decrease head size and percent salable heads”
✓ located verbatim in the source · abstract, characters 556–653

Title

Lettuce Seedling and Yield Response to Preplant and Foliar Fertilization during Transplant Production1

B. A. Kratky; H. Y. Mishima Journal of the American Society for Horticultural Science 1981. doi:10.21273/jashs.106.1.3

Other claims from this paper (11)

Recommendation The recommended foliar range for lettuce transplants is 200-600 ppm combined with preplant incorporation of 0-8 g/liter of medium.
Observation The 200 ppm foliar treatment required 4-8 g/liter of medium-incorporated fertilizer.
Observation The 600 ppm foliar treatment required 0-4 g/liter of preplant fertilizer.
Intervention effect The 0 foliar treatment decreased seedling weight, head firmness and head weight of lettuce.
Intervention effect The 1800 ppm foliar rate can cause soft lettuce seedlings.
Intervention effect The highest preplant rates caused excess salinity in the growing medium.
Intervention effect The highest preplant rates delayed lettuce seed germination.
Intervention effect The highest preplant rates reduced lettuce seedling fresh weight.
Intervention effect Total salable weight and average head weight were not influenced by the 6 media tested.
Intervention effect A lower seedling fresh weight occurred with 1 medium in the first experiment.
Association Large differences among treatments at the seedling stage moderated by harvest.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 2670 and 3560 μM Si, root dry matter yield of sorghum did not decrease.

Taxon: sorghumSorghumt0
Treatment: high Si levels (2670 and 3560 μM)e1
Outcome: root dry matter yieldse1
Direction: no_changeinferrede1

Not reportedComparator

Verbatim

t0
“Silicon interactions with manganese and aluminum toxicity in sorghum”
✓ located verbatim in the source · title, characters 0–68

e1
“At high Si levels (2670 and 3560 μM), shoot dry matter yields decreased, but root dry matter yields did not”
✓ located verbatim in the source · abstract, characters 431–538

Title

Silicon interactions with manganese and aluminum toxicity in sorghum

L. Galvez; R. B. Clark; L. M. Gourley; et al. Journal of Plant Nutrition 1987. doi:10.1080/01904168709363642

Other claims from this paper (11)

Intervention effect Silicon concentration up to 1780 μM had no detrimental effect on sorghum dry matter yields.
Intervention effect At 2670 and 3560 μM Si, shoot dry matter yield of sorghum decreased.
Observation Sorghum grown with 3600, 5400 and 7200 μM Mn showed marked visual toxicity symptoms in shoots but no effects on roots.
Association Root dry matter yield of sorghum decreased more than shoot dry matter yield under 3600, 5400 and 7200 μM Mn.
Intervention effect Silicon at 1780 and 3560 μM partially alleviated the toxicity symptoms and dry matter yield reductions caused by 3600 and 5400 μM Mn.
Observation No Si level overcame the severe effects induced by 7200 μM Mn in sorghum.
Intervention effect High Al (296 μM) reduced root dry matter yields of sorghum.
Intervention effect Silicon at 1068 μM was required to overcome the Al effect on root dry matter yield of NB9040 sorghum.
Intervention effect Silicon at 3560 μM was required to overcome the Al effect on root dry matter yield of Martin sorghum.
Intervention effect Added Si decreased the shoot/root dry matter ratios of sorghum that were high under toxic Mn and Al.
Observation Silicon effects were not sufficient to completely overcome the Mn and Al toxic effects on sorghum.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Under shading, the percentage decrease in leaf and culm area of spring wheat was lower than the percentage decrease in dry weight.

Taxon: spring wheatTriticum aestivume0
Outcome: decreasing percentages of leaf and culm areae1
Direction: lowere1
Comparator: dry weightse1

Verbatim

e0
“field-grown spring wheat (cv. Haruyutaka)”
✓ located verbatim in the source · abstract, characters 85–126

e1
“The decreasing percentages of leaf and culm area, however, were lower compared with those of dry weights”
✓ located verbatim in the source · abstract, characters 872–976

Title

Effect of shading before and after heading time on growth and yield of spring wheat.

Peiwu WANG; Kimio NAKASEKO Japanese Journal of Crop Science 1986. doi:10.1626/jcs.55.513

Other claims from this paper (19)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reduced tillage with the disk as primary tool decreased seed yield in 1986.

Taxon: melonCucumis meloe1
Treatment: RTe0
Outcome: seed yielde0
Direction: decreasee0
Qualifier: 1986e0

Not reportedComparator

Verbatim

e0
“a decrease in seed yield was observed in 1986 with RT where the disk was used as the primary tillage tool”
✓ located verbatim in the source · abstract, characters 1089–1194

e1
“marketable melon production”
✓ located verbatim in the source · abstract, characters 922–949

Title

Effect of tillage on soil physical properties and crop production

Abdi, Abdullahi Abdurahman; Sutherland, Lorenz; Schmehl, W. R.; et al. Digital Collections of Colorado (Colorado State University) 1989. doi:10.25675/3.024798

Other claims from this paper (14)

Intervention effect Reduced tillage had neither benefit nor loss in corn grain yield relative to conventional tillage.
Association Corn dry matter yield response to tillage varied with planting method.
Intervention effect With flat planting, total corn dry matter yield was higher under reduced tillage.
Intervention effect Ridge-tilled corn yielded more under reduced tillage.
Intervention effect Reduced tillage raised marketable melon yield by an average of 26% over three years.
Intervention effect Tillage system did not affect melon seed yield in 1985.
Intervention effect Reduced tillage increased aggregate stability.
Intervention effect Reduced tillage increased residual soil moisture content.
Intervention effect Reduced tillage increased infiltration.
Intervention effect Reduced tillage lowered early-season soil temperature in 1986.
Intervention effect Reduced tillage increased soil compaction at 15-30 in depth.
Mechanism Greater moisture storage saved irrigation water, labor and energy.
Mechanism The authors suggested lower soil temperature may have retarded early-season corn growth.
Recommendation The authors concluded reduced tillage could maintain or improve yields with lower costs under suitable management, especially with rainfall.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Delaying mealybug infestation decreased cassava yield loss.

Taxon: cassavaManihot esculentat0
Treatment: delay in the onset of mealybug infestatione0
Interactor: mealybuge0pest
Outcome: yield losse0
Direction: decreasee0

Verbatim

e0
“a delay in the onset of mealybug infestation results in a decrease in yield loss”
✓ located verbatim in the source · abstract, characters 610–690

t0
“cassava root yields”
✓ located verbatim in the source · title, characters 22–41

Title

Relationships between cassava root yields and crop infestations by the mealybug,Phenacoccus manihoti

K. F. Nwanze Tropical Pest Management 1982. doi:10.1080/09670878209370669

Other claims from this paper (9)

Observation Mealybug infestation reduced late-planted cassava root yield by up to 84.4%.
Observation Mealybug infestation reduced early-planted cassava root yield by up to 54.4%.
Association Later planting progressively increased cassava yield loss from mealybug attack.
Intervention effect December planting had 2.6% lower cassava root yield than October planting.
Intervention effect February planting had 11.2% lower cassava root yield than October planting.
Intervention effect April planting had 31.2% lower cassava root yield than October planting.
Association Cassava root yield and date of initial mealybug infestation were correlated at r = 0.77.
Recommendation Farmers can reduce cassava crop damage by avoiding late plantings.
Recommendation The authors recommend cassava varieties able to offset early pest population peaks when highly resistant varieties are absent.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Pitic 62 grain yield decreased significantly with increasing seeding rate in one experiment.

Taxon: spring wheatTriticum aestivumt0
Material: Pitic 62e0
Treatment: increased seeding ratee0
Outcome: Grain yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Grain yield of Pitic 62 showed a significant decrease with increased seeding rate in one experiment”
✓ located verbatim in the source · abstract, characters 310–409

t0
“SPRING WHEAT”
✓ located verbatim in the source · title, characters 78–90

Title

EFFECT OF SEEDING RATE ON GRAIN YIELD, STRAW YIELD AND HARVEST INDEX OF EIGHT SPRING WHEAT CULTIVARS

R. J. BAKER Canadian Journal of Plant Science 1982. doi:10.4141/cjps82-045

Other claims from this paper (7)

Association Grain yield showed a significant cultivar-by-experiment-by-linear seeding-rate interaction.
Intervention effect Pitic 62 grain yield showed the greatest increase in another experiment.
Intervention effect Across experiments, the highest seeding rate produced the highest grain yield.
Association Chester had the greatest straw-yield response to seeding rate.
Association Canuck had the least straw-yield response to seeding rate.
Intervention effect Canuck harvest index increased significantly as seeding rate increased.
Intervention effect Harvest index in the other cultivars tended to be greater at the intermediate seeding rate.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Hemi-cellulose content did not decrease in 1986.

Taxon: Forage kalet0
Outcome: Hemi-cellulose contente0
Direction: not in 1986e0
Qualifier: 1986e0

Verbatim

e0
“Hemi-cellulose content decreased in 1985 but not in 1986”
✓ located verbatim in the source · abstract, characters 415–471

t0
“Forage kale”
✓ located after whitespace/quote normalisation · title, characters 52–63

Title

EFFECT OF HARVEST DATES ON YIELD AND COMPOSITION OF FORAGE KALE

H. T. KUNELIUS; L. J. HALLIDAY; J. B. SANDERSON; et al. Canadian Journal of Plant Science 1989. doi:10.4141/cjps89-016

Other claims from this paper (19)

Observation Dry matter accumulated until early November, then declined at about 19 kg ha −1 d −1.
Observation Dry matter digestibility ranged from 916 to 952 g kg −1 across harvest dates.
Observation Crude protein was similar across most harvest dates.
Observation Hemi-cellulose content decreased in 1985.
Observation Cellulose content decreased in 1986.
Observation Cellulose content did not decrease in 1985.
Observation Lignin content increased from 25 to 43 g kg −1.
Observation Cell content peaked at 814 g kg −1 in mid-November.
Observation Leaf SMCO concentration increased from 1.4 to 6.2 g kg −1.
Observation Potassium concentration increased in 1985.
Observation Potassium concentration decreased in 1986.
Observation P and S concentrations were unaffected by harvest dates.
Observation Ca and Mg concentrations decreased with later harvests.
Observation B concentration decreased in 1985 but not 1986.
Observation Zinc concentration peaked in October 1986.
Observation Zinc concentrations were similar across five dates in 1985.
Observation Iron concentrations fluctuated in both years.
Observation Cu and Mn concentrations were unaffected by harvest dates.
Observation Kale provided highly digestible late-season dry matter; Cu, Mn and Zn were below ruminant requirements, while leaf SMCO remained below deleterious concentrations.

“yield decrease”

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