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“yield decrease”

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A 58% population decrease caused only a 12% soybean yield decrease.

Taxon: SoybeanGlycine maxe1
Treatment: 58% population decreasee0
Outcome: yielde0
Direction: decreasee0
Value: 12%e0
Comparator: 164 000 plants ha −le0

Verbatim

e0
“A 58% population decrease from 164 000 plants ha −l resulted in a yield decrease of only 12%”
✓ located verbatim in the source · abstract, characters 880–972

e1
“Soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 0–33

Title

Branch Yield Components Controlling Soybean Yield Stability across Plant Populations

A. C. Carpenter; J. E. Board Crop Science 1997. doi:10.2135/cropsci1997.0011183x003700030031x

Other claims from this paper (8)

Intervention effect A 43% population increase produced no significant soybean yield change.
Observation Branch dry matter averaged 14.0 g per plant at low population.
Observation Branch dry matter averaged 5.3 g per plant at medium population.
Observation Branch dry matter averaged 3.6 g per plant at high population.
Association Greater branch dry matter yielded more branch nodes, reproductive nodes and pods.
Association Pods per reproductive branch node affected yield in some cases.
Association Branch dry matter correlated strongly with yield at r squared 0.95.
Method / resource Branch dry matter was useful for identifying cultivars with low optimal population.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

KCl tended to decrease yield in all cultivars.

Treatment: KCl treatmente0
Outcome: yielde0
Direction: decreasee0
Qualifier: all cultivarse0

Not reportedTaxonComparator

Verbatim

e0
“In KCl treatment yield tended to decrease in all cultivars.”
✓ located verbatim in the source · abstract, characters 971–1030

Title

水耕ミニトマトの果実品質,収量及び生育に及ぼす塩化カリウム及び硫酸カリウム添加処理の影響

太田, 勝巳; 伊藤, 憲弘; 細木, 高志; et al. Institutional Repositories DataBase (IRDB) 1990

Other claims from this paper (12)

Intervention effect KCl increased soluble solids, sugar, acidity and fruit dry matter in three cultivars.
Intervention effect KCl decreased fruit weight in three cultivars.
Intervention effect K_2S0_4 increased fruit solids, sugar and dry matter less than KCl.
Intervention effect Fruit weight under K_2S0_4 equaled or tended to exceed control in all cultivars.
Intervention effect K_2S0_4 increased solid-acid ratio in Sun Cherry and Akakokko.
Intervention effect KCl decreased solid-acid ratio in Sun Cherry and Akakokko because acidity rose.
Observation Fruit hardness did not differ among treatments.
Intervention effect KCl decreased cherry tomato leaf length, width, mass and area.
Intervention effect Under K_2S0_4, cherry tomato leaf measures equaled or increased relative to control.
Observation Stem diameter did not differ among treatments.
Observation KCl improved fruit quality with lower yield versus the 2.0-unit control.
Observation K_2S0_4 maintained fruit quality and yield versus control.

Recommendationauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Maintaining a high proportion of double-flowered plants may decrease seed yield.

Taxon: zinniaZinniat0
Outcome: seed yielde0
Qualifier: may decreasee0

Verbatim

e0
“maintaining a high percentage of plants with double-flowered capitula may decrease seed yield”
✓ located verbatim in the source · abstract, characters 840–933

t0
“Zinnia”
✓ located verbatim in the source · title, characters 12–18

Title

Analysis of Zinnia Capitulum Composition

Daiichiro Miyajima; Masaaki Nakayama Journal of the American Society for Horticultural Science 1994. doi:10.21273/jashs.119.4.683

Other claims from this paper (6)

Observation A capitulum accumulated fewer than 20 newly opened florets daily for more than 15 days.
Observation Kumamotonokagayaki had 210 to 330 florets per capitulum.
Observation Snowball had 220 to 290 florets per capitulum.
Observation Purple Zem had 160 to 240 florets per capitulum.
Association Tubular floret numbers were negatively correlated with ray floret numbers.
Observation Ornamentally superior capitula had more ray and fewer tubular florets than single-flowered capitula.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Damage around tasseling-anthesis caused the greatest yield decrease in forage maize.

Organ / stage: tasseling‐anthesise0
Treatment: treatmentse0
Outcome: yielde0
Direction: Decreasee0

Not reportedTaxonComparator

Verbatim

e0
“Decrease of yield was the highest when treatments were applied around tasseling‐anthesis”
✓ located verbatim in the source · abstract, characters 247–335

Title

Effects of Simulated Hail Damage on the Yield of Forage Maize

G. Trappeniers; J. F. Ledent; O. Fayt; et al. Journal of Agronomy and Crop Science 1992. doi:10.1111/j.1439-037x.1992.tb00972.x

Other claims from this paper (2)

Intervention effect Leaf tearing alone had little effect on total dry matter yield of forage maize.
Intervention effect Simulated hail damage had small effects on forage maize dry matter content.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Pods per plant were chiefly responsible for yield decrease.

Taxon: soybeanGlycine maxt0
Organ / stage: podse0
Outcome: yield decreasee0
Direction: decreasee0

Verbatim

e0
“the component most responsible for yield decrease was the number of pods per plant”
✓ located verbatim in the source · abstract, characters 948–1030

t0
“Soybean”
✓ located verbatim in the source · title, characters 130–137

Title

The Interaction of Sowing Date and Water Availability in Determining Plant Architecture, Fruiting Pattern and Yield Components of Soybean (Glycine max L. Merr.)

P. Ceccon; L. Dalla Costa; R. Giovanardi; et al. Journal of Agronomy and Crop Science 1994. doi:10.1111/j.1439-037x.1994.tb00552.x

Other claims from this paper (9)

Intervention effect Water shortage restricted crop evapotranspiration.
Intervention effect Water shortage restricted water uptake depth.
Intervention effect Low water availability reduced architecture traits.
Intervention effect Late sowing reduced architecture traits.
Intervention effect Late sowing shifted stem seed allocation downward.
Intervention effect Reduced water supply shifted stem seed allocation downward.
Intervention effect Water stress only slightly affected unit seed weight.
Intervention effect Early sown soybean lost more yield under reproductive phase water shortage.
Intervention effect Late sown soybean lost more yield under vegetative phase water shortage.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The yield decrease of wheat increased with subsoil Al.

Taxon: wheatTriticum aestivume0
Treatment: subsoil Ale3
Outcome: yield decreasee3
Direction: increasede3

Verbatim

e0
“toxicity on wheat growth were studied”
✓ located verbatim in the source · abstract, characters 112–149

e3
“the yield decrease increased with subsoil Al”
✓ located verbatim in the source · abstract, characters 935–979

Title

Interacting effects of topsoil water and nitrogen supply on subsoil aluminium toxicity

S. J. Can; G. S. P. Ritchie Communications in Soil Science and Plant Analysis 1994. doi:10.1080/00103629409369268

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Soybean yield tended to decrease with wider rows and narrower spacing within rows.

Taxon: soybeanGlycine maxe1
Outcome: yielde0
Direction: decreasee0
Qualifier: tendede0
Setting: row widthse0

Verbatim

e0
“yield tended to decrease with wider row widths and narrower within row spacings”
✓ located verbatim in the source · abstract, characters 890–969

e1
“soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 35–68

Title

Soybean Planting Patterns in Relation to Yield and Yield Components

T. Ikeda Agronomy Journal 1992. doi:10.2134/agronj1992.00021962008400060002x

Other claims from this paper (4)

Intervention effect Twin-zigzag soybean patterns yielded more than twin-rectangular patterns at 70-cm width.
Association The higher yields came from more seeds per plant.
Intervention effect Weight per seed was unaffected by planting pattern.
Recommendation The authors proposed that square planting patterns could increase yield.

Observationobservedoriginal resultnegativesimulated

Claim · model-written summary

The UKMO scenario was unfavourable and showed a considerable yield decrease.

Taxon: riceOryza sativae1
Outcome: yielde0
Direction: decreasee0
Qualifier: UKMO scenarioe0

Verbatim

e0
“the UKMO scenario is not favorable, showing a considerable yield decrease”
✓ located verbatim in the source · abstract, characters 836–909

e1
“rice, maize and wheat production in Japan”
✓ located verbatim in the source · abstract, characters 83–124

Title

The Impacts of Climatic Warming on Cereal Crop Production in Japan.

Hiroshi SEINO Journal of Agricultural Meteorology 1995. doi:10.2480/agrmet.51.131

Other claims from this paper (11)

Intervention effect Higher temperature decreased simulated cereal yields in many regions under current management.
Intervention effect Higher temperature shortened simulated cereal growing seasons in many regions.
Intervention effect Direct CO2 benefits may compensate for yield losses in central and northern Japan.
Intervention effect Direct CO2 benefits did not compensate for yield losses in Kyushu.
Association Simulated crop-yield changes varied greatly among GCM scenarios.
Observation The GISS scenario was generally favourable for Japanese crop production.
Observation Wheat production was vulnerable under every GCM climate-change scenario.
Intervention effect Earlier planting raised simulated yields under climate change in most cases.
Intervention effect Earlier planting did not improve simulated yields in Kyushu because of high temperature stress.
Recommendation Early planting and irrigation were proposed as adaptation strategies.
Recommendation New cultivars better adapted to climate change would be required in Kyushu.

Observationobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

The grain yield decrease in Ant-Pop was insignificant.

Taxon: MaizeZea mayst0
Material: Ant-Pope0
Outcome: grain yielde0
Direction: decreasee0

Verbatim

e0
“The decrease in the grain yield of Ant-Pop cultivar was insignificiant”
✓ located verbatim in the source · abstract, characters 536–606

t0
“Maize”
✓ located verbatim in the source · title, characters 61–66

Title

The Effect of Cutting Use Above The Part of Above The Ear in Maize as Forage on Grain Yield and Development

Mehmet Bilgen; Sadık Çakmakçi DergiPark (Istanbul University) 1999

Other claims from this paper (9)

Intervention effect Removing the portion above the ear reduced maize grain yield by 2.2 to 18.3%.
Intervention effect Cutting yielded 358.78 to 898.12 kg/da of forage.
Observation Tüm 82-6 had the greatest grain yield losses after fertilization and at milk stage.
Observation Ant-90 had the greatest grain yield losses after fertilization and at milk stage.
Intervention effect Cutting after fertilization caused greater grain yield reduction.
Intervention effect Cutting at milk stage caused greater grain yield reduction.
Observation Cutting after fertilization and at milk stage supplied more forage and better forage quality.
Intervention effect Grain yield loss from cutting at hard dough stage was insignificant.
Observation Forage from cutting at hard dough stage had low quality due to over ripeness.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Herbicide injury and defoliation interacted to decrease soybean yield.

Taxon: soybeanGlycine maxe1
Treatment: herbicide injury and defoliatione3
Outcome: yielde3
Direction: decreasee3
Qualifier: interacted over 1990 and 1991e3

Not reportedComparator

Verbatim

e1
“seed yield of soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 525–572

e3
“Moreover, herbicide injury and defoliation interacted over 1990 and 1991 to decrease yield”
✓ located verbatim in the source · abstract, characters 1207–1297

Title

Soybean Yield and Pest Management as Influenced by Nematodes, Herbicides, and Defoliating Insects

J. A. Browde; L. P. Pedigo; M. D. K. Owen; et al. Agronomy Journal 1994. doi:10.2134/agronj1994.00021962008600040005x

Other claims from this paper (10)

Intervention effect Herbicide injury reduced soybean yield in 1990 and 1991.
Intervention effect Defoliation reduced soybean yield in 1990 and 1991.
Intervention effect Defoliation reduced pods per plant in soybean.
Intervention effect Herbicide injury decreased pods per plant in soybean in 1990.
Intervention effect Herbicide injury decreased weight per seed in soybean in 1990 and 1991.
Intervention effect Soybean cyst nematode stress alone never affected soybean yield.
Intervention effect Interactions of soybean cyst nematode with herbicides and with defoliation reduced soybean yield in 1990.
Observation No treatment effects on soybean yield were found in 1989.
Recommendation Lower economic injury levels for green cloverworm were developed for soybean treated with acifluorfen plus bentazon.
Recommendation Growers should consider adjusting weed and insect management strategies for soybean fields infested with soybean cyst nematode.

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