Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The photosynthesis increase arose from higher gross photosynthesis rather than lower photorespiration.

Taxon: wheatTriticum aestivumt0
Outcome: photosynthesise0
Qualifier: an increase in gross photosynthesise0

Verbatim

e0
“The increase in photosynthesis was not due to a decrease in photorespiration but to an increase in gross photosynthesis.”
✓ located verbatim in the source · abstract, characters 1575–1695

t0
“Wheat”
✓ located verbatim in the source · title, characters 73–78

Title

Effects of CO₂Enrichment at Different Irradiances on Growth and Yield of Wheat

A. C. KENDALL; J. C. TURNER; S. M. THOMAS; et al. Journal of Experimental Botany 1985. doi:10.1093/jxb/36.2.261

Other claims from this paper (13)

Observation Growth and grain yield saturated at the two brightest irradiances.
Intervention effect CO2 enrichment increased shoot dry weight by 10.5 percent without statistical significance.
Intervention effect CO2 enrichment increased grain yield by 23.5 percent significantly.
Intervention effect Increasing irradiance produced approximately threefold yield increases.
Intervention effect Increased light raised dry weight per grain.
Intervention effect Increased light raised grain number per spikelet.
Intervention effect CO2 enrichment raised dry weight per grain.
Intervention effect CO2 enrichment increased ear dry weight between 30 and 60 days after anthesis.
Intervention effect CO2 enrichment increased shoot dry weight immediately after exposure.
Intervention effect CO2 enrichment almost doubled flag leaf net photosynthesis at day 16.
Intervention effect CO2 enrichment also doubled stomatal resistance.
Association Greater photosynthesis did not yield a proportional yield increase.
Mechanism Increased mutual shading and shoot respiration probably limited assimilation and yield response.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Stalk lodging declined 9.0%/cycle in BS1O.

Taxon: maizeZea mayse0
Material: BS1Oe1
Outcome: stalk lodginge1
Direction: decreaseinferrede1
Value: -9.0e1

Verbatim

e0
“maize (Zea mays L.)”
✓ located verbatim in the source · abstract, characters 71–90

e1
“Linear response for stalk lodging for BS1O, BS10×RSSSC and BS10×B37 were: -9.0, -5.4 and -3.5%/cycle, respectively”
✓ located verbatim in the source · abstract, characters 1452–1566

Title

Response of Two Maize Populations to Reciprocal Recurrent Selection in a High-yield Environment

H. S. Lu; R. J. Lambert Zhōnghuá nóngyè yánjiū 1988. doi:10.29951/jarc.198812.0003

Other claims from this paper (15)

Observation Selection response was consistent among environments.
Observation Grain yield gained 0.95 Mg/ha/cycle in BS10.
Observation Grain yield gained 0.69 Mg/ha/cycle in RSSSC.
Observation Grain yield gained 0.65 Mg/ha/cycle in BS10×RSSSC.
Observation Grain yield gained 0.65 Mg/ha/cycle in BS10×B37.
Observation Grain yield gained 0.24 Mg/ha/cycle in RSSSC×B79.
Observation Stalk lodging declined 5.4%/cycle in BS10×RSSSC.
Observation Stalk lodging declined 3.5%/cycle in BS10×B37.
Observation All population categories showed significantly increased penetrometer readings.
Observation Plant and ear height increased in RSSSC, BS10×RSSSC and RSSSC×B79.
Observation BS10 increased in 300-kernel weight and kernel number per ear.
Observation BS10 decreased in ear number per 100 plants.
Observation RSSSC increased in 300-kernel weight.
Observation Grain moisture rose slightly in BS10 and BS10×B37 after three selection cycles.
Observation Selection improved multiple leaf disease and stalk-rot resistance.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Waterlogging to the surface for 5 days at the 1–2 leaf stage reduced seed yield of peas by 6%.

Taxon: peasLathyrus oleraceuse1
Organ / stage: 1–2e2
Treatment: waterlogged to the surface for 5 dayse2
Outcome: losses of yield of seedse2
Direction: decreaseinferrede2
Value: 6e2

Not reportedComparator

Verbatim

e1
“growth and yield of peas”
✓ located verbatim in the source · abstract, characters 98–122

e2
“On average, when the soil was waterlogged to the surface for 5 days at the 1–2, 3–4 and 6–7 leaf stages (the latter being just before flowering), the losses of yield of seeds (peas) at the freezing stage were 6, 15 and 42%, respectively”
✓ located verbatim in the source · abstract, characters 597–833

Title

Effects of waterlogging at different stages of development on the growth and yield of peas (Pisum sativum L.)

Robert K. Belford; Robert Q. Cannell; Robert J. Thomson; et al. Journal of the Science of Food and Agriculture 1980. doi:10.1002/jsfa.2740310902

Other claims from this paper (16)

Intervention effect Waterlogging to the surface for 5 days at the 3–4 leaf stage reduced seed yield of peas by 15%.
Intervention effect Waterlogging to the surface for 5 days at the 6–7 leaf stage, just before flowering, reduced seed yield of peas by 42%.
Intervention effect At the 6–7 leaf stage, 2 days of waterlogging to the surface had little effect on pea seed yield.
Intervention effect At the 6–7 leaf stage, 5 days with the water table at 50 cm depth had little effect on pea seed yield.
Association The severity of the waterlogging effect on peas depended on treatment duration and water-table height.
Intervention effect Waterlogging restricted leaf expansion and internode extension in peas.
Intervention effect Waterlogging at the pre-flowering stage caused leaves of peas to senesce prematurely.
Intervention effect Waterlogging at the pre-flowering stage made the shoot apex of peas become prematurely quiescent.
Intervention effect Haulm yield of peas was more affected by waterlogging than pod and seed yields.
Mechanism The yield losses of waterlogged peas were mainly a consequence of fewer pods per plant.
Intervention effect Waterlogging before flowering for 5 days depressed nitrogen, phosphorus and potassium concentrations in pea haulm.
Intervention effect Waterlogging before flowering for 5 days depressed nitrogen concentration in pea seeds in one year on clay.
Intervention effect Other waterlogging treatments had little effect on pea nutrient concentration.
Intervention effect Waterlogging to the surface for 5 days before flowering restricted water uptake by pea roots.
Intervention effect Other waterlogging treatments had only a small effect on pea root water uptake, least in the early treatments.
Intervention effect During waterlogging the oxygen concentration at 20 cm depth in the soil declined to less than 2% within 2 days.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Waterlogging to the surface for 5 days at the 3–4 leaf stage reduced seed yield of peas by 15%.

Taxon: peasLathyrus oleraceuse1
Organ / stage: 3–4e2
Treatment: waterlogged to the surface for 5 dayse2
Outcome: losses of yield of seedse2
Direction: decreaseinferrede2
Value: 15e2

Not reportedComparator

Verbatim

e1
“growth and yield of peas”
✓ located verbatim in the source · abstract, characters 98–122

e2
“On average, when the soil was waterlogged to the surface for 5 days at the 1–2, 3–4 and 6–7 leaf stages (the latter being just before flowering), the losses of yield of seeds (peas) at the freezing stage were 6, 15 and 42%, respectively”
✓ located verbatim in the source · abstract, characters 597–833

Title

Effects of waterlogging at different stages of development on the growth and yield of peas (Pisum sativum L.)

Robert K. Belford; Robert Q. Cannell; Robert J. Thomson; et al. Journal of the Science of Food and Agriculture 1980. doi:10.1002/jsfa.2740310902

Other claims from this paper (16)

Intervention effect Waterlogging to the surface for 5 days at the 1–2 leaf stage reduced seed yield of peas by 6%.
Intervention effect Waterlogging to the surface for 5 days at the 6–7 leaf stage, just before flowering, reduced seed yield of peas by 42%.
Intervention effect At the 6–7 leaf stage, 2 days of waterlogging to the surface had little effect on pea seed yield.
Intervention effect At the 6–7 leaf stage, 5 days with the water table at 50 cm depth had little effect on pea seed yield.
Association The severity of the waterlogging effect on peas depended on treatment duration and water-table height.
Intervention effect Waterlogging restricted leaf expansion and internode extension in peas.
Intervention effect Waterlogging at the pre-flowering stage caused leaves of peas to senesce prematurely.
Intervention effect Waterlogging at the pre-flowering stage made the shoot apex of peas become prematurely quiescent.
Intervention effect Haulm yield of peas was more affected by waterlogging than pod and seed yields.
Mechanism The yield losses of waterlogged peas were mainly a consequence of fewer pods per plant.
Intervention effect Waterlogging before flowering for 5 days depressed nitrogen, phosphorus and potassium concentrations in pea haulm.
Intervention effect Waterlogging before flowering for 5 days depressed nitrogen concentration in pea seeds in one year on clay.
Intervention effect Other waterlogging treatments had little effect on pea nutrient concentration.
Intervention effect Waterlogging to the surface for 5 days before flowering restricted water uptake by pea roots.
Intervention effect Other waterlogging treatments had only a small effect on pea root water uptake, least in the early treatments.
Intervention effect During waterlogging the oxygen concentration at 20 cm depth in the soil declined to less than 2% within 2 days.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Virus infection lowered cotton yield through a smaller number of bolls set.

Taxon: cottonGossypium hirsutume0
Treatment: virus infectione1
Interactor: viruse1pathogen
Outcome: number of bolls sete2
Direction: smallere2

Not reportedComparator

Verbatim

e0
“The effects of cotton leaf crumple disease on components of yield and on symptom expression were examined for cotton inoculated at five growth stages”
✓ located verbatim in the source · abstract, characters 0–149

e1
“As a result of virus infection, the total leaf area was reduced and significant reductions in yield were observed, regardless of plant age at time of inoculation”
✓ located verbatim in the source · abstract, characters 151–312

e2
“Yield reductions resulted from a smaller number of bolls set and/or a decrease in boll weight”
✓ located verbatim in the source · abstract, characters 314–407

Title

The Effects of Cotton Leaf Crumple on Greenhouse-Grown Cotton Incoulated at Five Growth Stages

J. D. Mihail; Judith K. Brown; M. R. Nelson UA Campus Repository (The University of Arizona) 1987

Other claims from this paper (6)

Intervention effect Virus infection reduced total leaf area of greenhouse-grown cotton.
Intervention effect Virus infection caused significant reductions in cotton yield regardless of plant age at inoculation.
Intervention effect Virus infection lowered cotton yield through decreased boll weight.
Intervention effect Cotton inoculated at all five growth stages showed foliar symptoms.
Intervention effect Foliar symptoms appeared sooner in cotton inoculated at the 2-3, 5-8 and 8-10 leaf stages than at the 14-16 or 18-20 leaf stages.
Intervention effect Foliar symptoms were more severe in cotton inoculated at the 2-3, 5-8 and 8-10 leaf stages than at the 14-16 or 18-20 leaf stages.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

High PPF decreased leaf area ratio.

Taxon: lettuceLactuca sativae2
Treatment: high PPF of 880-900 micromoles m-2 s-1e3
Outcome: leaf area ratio (LAR)e0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 572–661

e1
“but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 572–661

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.
Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Observation Relative growth rate increased only in the first days of exponential growth.
Intervention effect CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.
Intervention effect High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.
Intervention effect High PPF increased photosynthetic rate at enriched CO2.
Intervention effect At high PPF, supraoptimal CO2 increased leaf area and LAR.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed dressing with all three doses of BHC gave poor wheat germination relative to the control.

Taxon: wheatTriticum aestivume0
Treatment: all the 3 doses of BHCe1
Outcome: germinatione1
Direction: decreaseinferrede1
Comparator: controle2

Verbatim

e0
“grain yield of wheat (WG357)”
✓ located verbatim in the source · abstract, characters 198–226

e1
“Wheat seed-treated with all the 3 doses of BHC and higher doses of aldrin and heptachlor (3 ml/kg) showed poor germination”
✓ located verbatim in the source · abstract, characters 228–350

e2
“All other treatments were comparable to control”
✓ located verbatim in the source · abstract, characters 352–399

Title

Effect of insecticidal seed-dressings on germination and yield of irrigated wheat.

G.S. Sandhu; A. S. Sohi Indian journal of plant protection 1980

Other claims from this paper (5)

Intervention effect Seed dressing with higher doses of aldrin and heptachlor (3 ml/kg) gave poor wheat germination relative to the control.
Intervention effect Seed coated with BHC noticeably reduced wheat yield.
Intervention effect The other seed dressings did not influence wheat yield in the absence of termites.
Recommendation General recommendations for seed dressing should be made with care.
Intervention effect Other seed treatments gave germination comparable to the control.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

No-tillage increased corn yields on Wooster soil by an annual mean 1070 kg ha −1.

Taxon: cornZea mays subsp. mayse0
Treatment: no‐tillagee0
Outcome: corn yield increasee0
Direction: increasee0
Value: 1070 kg ha −1e0
Setting: Woostere0

Verbatim

e0
“The average yearly corn yield increase and decrease due to no‐tillage on the Wooster and the Hoytville soils were 1070 kg ha −1 and 503 kg ha −1 , respectively.”
✓ located verbatim in the source · abstract, characters 1132–1292

Title

Continuous Tillage and Rotation Combinations Effects on Corn, Soybean, and Oat Yields¹

W. A. Dick; D. M. Van Doren Agronomy Journal 1985. doi:10.2134/agronj1985.00021962007700030023x

Other claims from this paper (7)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing salinity reduced the dry matter yield of shoots and spikes of wheat, the opposite of the spike production efficiency result.

Taxon: wheatTriticum aestivume0
Organ / stage: shoots and spikese1
Treatment: increasing salinitye1
Outcome: dry matter yield of shoots and spikese1
Direction: decreaseinferrede1

Not reportedComparator

Verbatim

e0
“A sand culture experiment was conducted using four wheat varieties viz. Sakha 8 (V1), Sonalika (V2), Sakha 3 (V3) and Soltane (V4)”
✓ located verbatim in the source · abstract, characters 0–130

e1
“The efficiency of spike dry matter production percent was promoted by increasing salinity, though, the opposite was observed for the dry matter yield of shoots and spikes”
✓ located verbatim in the source · abstract, characters 489–659

Title

Effect of Sodium Chloride and Nitrate on Dry Matter Production and Micronutrient Content of Wheat Plant

Ahmed E. El-Sherbieny; Raafat K. Rabie; El-Sayed A. Mohammed; et al. Soil Science & Plant Nutrition 1986. doi:10.1080/00380768.1986.10557497

Other claims from this paper (10)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Chlorosis increased with increasing soil pH up to 6.5.

Taxon: Rabbiteye blueberrye0
Treatment: increasing pH up to 6.5e3
Outcome: chlorosise3
Direction: increasee3

Verbatim

e0
“Rabbiteye blueberry plants ( Vaccinium ashei Reade)”
✓ located verbatim in the source · abstract, characters 9–60

e3
“Observed growth appeared to decrease and chlorosis increase with increasing pH up to 6.5”
✓ located verbatim in the source · abstract, characters 517–605

Title

Influence of Soil pH on Soil Nutrients, Leaf Elements, and Yield of Young Rabbiteye Blueberries

Max E. Austin; T. Powell Gaines; Robert E. Moss HortScience 1986. doi:10.21273/hortsci.21.3.443

Other claims from this paper (5)

Association Yields of two rabbiteye cultivars decreased as soil pH increased from 5.1 to 6.3.
Association Delite plants had good growth and foliage color at soil pH 5.0 to 5.5.
Association Observed growth decreased with increasing soil pH up to 6.5.
Association Growth of Tifblue differed little among the soil pH treatments.
Association Higher yields were obtained from Tifblue than from Delite.

“yield decrease”

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