Search claims · PlantClaims

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

Future rice yields decrease without carbon dioxide fertilization.

Taxon: riceOryza sativae0
Outcome: yieldse0
Direction: decreasee0
Qualifier: without the CO 2 fertilization effecte0

Verbatim

e0
“simulated future rice yields decrease without the CO 2 fertilization effect”
✓ located verbatim in the source · abstract, characters 569–644

Title

Potential impacts of climate change and climate variability on China’s rice yield and production

W Xiong; D Conway; E Lin; et al. Climate Research 2009. doi:10.3354/cr00802

Other claims from this paper (7)

Observation With carbon dioxide fertilization, future rice yields increase in some areas and periods.
Observation Rice yield variability increases in both climate scenarios.
Observation The largest rice yield variability increase is under A2.
Observation Single rice cropping may expand northward in China.
Observation Double rice cropping may move to the northern Yangtze River basin.
Observation Potential Chinese rice production is projected to increase.
Observation The Sichuan basin, Yangtze River basin and Huang-huaihai plain are highly sensitive to future climate change without adaptation.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Water stress reduced grains per cob, mainly explaining lower grain yield.

Treatment: water stresse0
Outcome: number of grains per cobe0
Direction: decreasee0

Not reportedTaxon

Verbatim

e0
“The decrease in grain yield due to water stress was mainly due to the decrease in the number of grains per cob”
✓ located verbatim in the source · abstract, characters 555–665

Title

Alternate Furrow Irrigation with Different Irrigation Intervals for Maize (Zea mays L.)

Ali Reza Sepaskhah; Mohammad Hasan Khajehabdollahi Plant Production Science 2005. doi:10.1626/pps.8.592

Other claims from this paper (10)

Intervention effect Alternate furrow irrigation did not meet maize water needs at four-day intervals in either groundwater setting.
Association Water stress also reduced thousand-grain weight, contributing less to yield loss.
Intervention effect At Kooshkak, AFI at four days gave grain yields comparable to EFI at seven days.
Intervention effect At Kooshkak, AFI at seven days gave grain yields comparable to EFI at ten days.
Association Groundwater may have supplied about 5–10% of plant water use at Kooshkak.
Intervention effect At Badjgah, AFI at seven days produced significantly lower yield than EFI at ten days.
Intervention effect Four-day AFI may relieve water stress without reducing yield relative to seven-day EFI despite using less water.
Intervention effect Seven-day AFI may be superior to ten-day EFI where the water table is shallow.
Recommendation The authors recommend ten-day AFI to improve water-use efficiency when seasonal irrigation is below 700 mm.
Intervention effect With insufficient full irrigation, maize relative grain yield per water applied was higher under AFI than EFI.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ozone treatment decreased maximum photochemical yield.

Taxon: Pinus halepensisPinus halepensist0
Outcome: varphipoe0
Direction: decreasee0

Not reportedTreatmentComparator

Verbatim

e0
“and the decrease of varphipo.”
✓ located verbatim in the source · abstract, characters 968–997

t0
“Pinus halepensis”
✓ located verbatim in the source · title, characters 26–42

Title

Physiological response of Pinus halepensis needles under ozone and water stress conditions

Fausto Manes; Eugenio Donato; Marcello Vitale Physiologia Plantarum 2001. doi:10.1034/j.1399-3054.2001.1130213.x

Other claims from this paper (7)

Intervention effect Water stress alone and with ozone lowered stomatal conductance and gas exchange.
Intervention effect Water stress alone and with ozone reduced maximum photochemical yield.
Observation Water stress treatments produced very negative leaf water potential.
Observation PSII antenna size and electron transport per reaction centre rose greatly.
Mechanism Ozone-treated plants had reduced photosynthesis associated with a slower Calvin cycle.
Intervention effect Ozone treatment increased relative variable fluorescence, heat de-excitation, and spillover de-excitation.
Mechanism Authors suggest antagonism between water shortage and ozone delays stomatal conductance decline under combined stress.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Shading during the seeding period decreased guar bean yield by 45.2%.

Taxon: Guar Beant0
Organ / stage: seeding periode0
Treatment: shadinge0
Outcome: the yielde0
Direction: decreasee0
Value: 45.2%e0

Not reportedComparator

Verbatim

t0
“Guar Bean”
✓ located verbatim in the source · title, characters 53–62

e0
“During seeding period shading has a major influence on the richness of seeds,leads to the remarkable decrease of kernel weight and 45.2% decrease of the yield”
✓ located verbatim in the source · abstract, characters 726–884

Title

Effect of Shading on Growth,Development and Yield of Guar Bean

Qun Zheng Journal of Shihezi University 2008

Other claims from this paper (7)

Intervention effect Weak light (shading) at any growth stage increased elongation growth of guar bean.
Intervention effect Weak light at any growth stage decreased stem diameter and leaf area of guar bean.
Intervention effect Weak light at any growth stage decreased the weight of leaf and plant dry matter of guar bean.
Intervention effect Shading during blooming and pod formation reduced guar bean yield by up to 67.1%.
Intervention effect Shading during the seeding period markedly decreased kernel weight of guar bean.
Intervention effect Weak light during the seedling period mainly influenced the plant shape of guar bean.
Intervention effect Weak light during the seedling period caused a 28.1% decrease in guar bean yield.

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The measured soil quality decline had no significant effect on pasture or crop yield to date.

Taxon: pasturee0
Treatment: this measured decreasee0
Outcome: pasture or crop yielde0
Direction: no significant effecte0
Qualifier: this measured decreasee0

Verbatim

e0
“this measured decrease has had no significant effect on pasture or crop yield”
✓ located verbatim in the source · abstract, characters 1488–1565

Title

The impact of land-use intensification on soil physical quality and plant yield response in the North Otago Rolling Downlands

D.J. Houlbrooke; J.D. Morton; R.J. Paton; et al. Proceedings of the New Zealand Grassland Association 2006. doi:10.33584/jnzg.2006.68.2652

Other claims from this paper (4)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Dry root yield of cassava continued to decrease to 12.59 t/ha in December with June planting.

Taxon: cassavaManihot esculentat0
Treatment: in Decembere1
Outcome: Dry roots yieldse1
Direction: decreasee1
Value: 12.59 t ha-1e1
Setting: June plantinge1

Verbatim

t0
“cassava (Manihot esculenta Crantz)”
✓ located verbatim in the source · title, characters 70–104

e1
“Dry roots yields were highest (15.27 t ha-1) when roots were harvested in September, but continued to decrease up to 12.59 t ha-1 in December with June planting”
✓ located verbatim in the source · abstract, characters 857–1017

Title

Impact of water stress on fresh tuber yield and dry matter content of cassava (Manihot esculenta Crantz) in Côte d'Ivoire.

S. Bakayoko; A. Tschannen; Charlemagne Nindjin; et al. African Journal of Agricultural Research 2009. doi:10.5897/ajar.9000405

Other claims from this paper (10)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Spring cabbage yield did not decrease under the reduced fertilizer application.

Taxon: spring cabbageBrassica oleracea var. capitatae0
Treatment: N,P and K content of chemical fertilizer application was controlled within(20kg/666.7m~(2))e0
Outcome: yieldse0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“when the N,P and K content of chemical fertilizer application was controlled within(20kg/666.7m~(2)) the yields of cherry tomato and spring cabbage did not decrease”
✓ located verbatim in the source · abstract, characters 215–379

Title

Effects of Reducing Chemical Fertilizer Application on Yields and Nitrate Contents of Cherry Tomato and Spring Cabbage

Qiao Hongxia; Xiude Wang; Aifeng Zhu; et al. Shanghai nongye xuebao 2005

Other claims from this paper (6)

Intervention effect Cherry tomato yield did not decrease when fertilizer N, P and K application was controlled within 20kg/666.7m~(2).
Intervention effect Reduced fertilizer application somewhat reduced cherry tomato nitrate contents.
Intervention effect Reduced fertilizer application somewhat reduced spring cabbage nitrate contents.
Intervention effect Adding foliage spray increased cherry tomato yield.
Intervention effect Adding foliage spray slightly raised cherry tomato nitrate content, remaining within the tolerance limit.
Intervention effect Adding foliage spray substantially increased spring cabbage nitrate content.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each unit increase in dicot intensity was associated with a decrease in rice grain yield of 1.64 q ha-1.

Taxon: aromatic ricet0
Interactor: dicotse6weed
Outcome: rice grain yielde6
Direction: decreasee6
Value: 1.64e6

Verbatim

t0
“aromatic rice (Oryza Sativa L.) Cv. Pusa Basmati 1”
✓ located verbatim in the source · title, characters 64–114

e6
“The unit increase in intensity of monocots, dicots and weed dry weight causes decrease in rice grain yield by 2.18, 1.64 and 2.85 q ha-1 respectively”
✓ located verbatim in the source · abstract, characters 920–1069

Title

Production potential and economic analysis of direct wet seeded aromatic rice (Oryza Sativa L.) Cv. Pusa Basmati 1 as influenced by fertility levels and weed management practices

Parmeet Singh; Purshotam Singh; S.S. Singh ORYZA- An International Journal on Rice 2008

Other claims from this paper (7)

Intervention effect Yield and net income of aromatic rice increased with higher fertility levels.
Intervention effect Two hand weedings gave the highest grain yield of aromatic rice, followed by anilofos.
Intervention effect The maximum grain yield of aromatic rice was observed with 120: 60: 60 kg ha-1 of N: P2O5: K2O and two hand weedings.
Intervention effect Net return and benefit cost ratio were higher with 120: 60: 60 kg ha-1 of N: P2O5: K2O and anilofos.
Intervention effect The maximum weed index (67–69%) was observed in weedy check plots.
Association Each unit increase in monocot intensity was associated with a decrease in rice grain yield of 2.18 q ha-1.
Association Each unit increase in weed dry weight was associated with a decrease in rice grain yield of 2.85 q ha-1.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each quarter of trunk circumference that was galled was associated with a 12% decrease in cumulative walnut nut yield over the first 4 years of production.

Taxon: walnutt0
Treatment: quarter of trunk circumference that was gallede6
Outcome: cumulative nut yielde6
Direction: decreasee6
Value: 12%e6
Qualifier: over the first 4 years of productione6

Verbatim

t0
“Crown gall can spread between walnut trees in nurseries and reduce future yields”
✓ located verbatim in the source · title, characters 0–80

e6
“For every quarter of trunk circumference that was galled, there was a 12% decrease in cumulative nut yield over the first 4 years of production”
✓ located verbatim in the source · abstract, characters 751–894

Title

Crown gall can spread between walnut trees in nurseries and reduce future yields

Lynn Epstein; Sukhwinder Kaur; James R. McKenna; et al. California Agriculture 2008. doi:10.3733/ca.v062n03p111

Other claims from this paper (3)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Active P slightly decreased at 41–60 cm.

Outcome: decreasee0
Direction: decreasee0

Not reportedTaxon

Verbatim

e0
“slighty decrease in 41～60 cm soil layer”
✓ located verbatim in the source · abstract, characters 863–902

Title

Effects of Sulfur Application in High Yield Summer Maize

Cun Liu Maize Sciences 2002

Other claims from this paper (13)

Observation The control yielded 9 784.5 kg per hectare.
Observation The S1 treatment yielded 10 639.5 kg per hectare.
Observation The S2 treatment yielded 11 322 kg per hectare.
Intervention effect S1 grain yield was 1.087 3 times that of CK.
Intervention effect S2 grain yield was 1.157 1 times that of CK.
Intervention effect Sulfur application increased ear length and three grain number measures.
Intervention effect Sulfur produced little increase in grain weight.
Association Plant uptake of N, P, K, Mn, Zn and Mg increased with sulfur amount.
Association Leaf Fe, Mn and Zn contents increased with sulfur amount.
Intervention effect Ammonium sulfate lowered soil pH across three soil depths.
Intervention effect Sulfur fertilizer increased total N and active K in the 0–60 cm soil layer.
Intervention effect Sulfur slightly increased active P in the 0–20 cm layer.
Observation Active P varied little at 21–40 cm.

“yield decrease”

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