Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The yield decrease at the tillering stage is mainly caused by a decrease in biological yield.

Taxon: riceOryza sativae4
Organ / stage: tillering stagee4
Outcome: decrease in the yield of the ricee4
Qualifier: decrease in its biological yielde4

Verbatim

e4
“The decrease in the yield of the rice at tillering stage is maily caused by the decrease in its biological yield while that at ear primordial stage is due to the decrease in its harvest index(HI)”
✓ located after whitespace/quote normalisation · abstract, characters 576–773

Title

Effect of the Irrigation with Water Polluted by Diesel Oil at Two Rice Gr owth Stages on Rice Yield

Jinhu Wang Journal of Suzhou Railway Teachers College 2002

Other claims from this paper (5)

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The yield decrease at the ear primordial stage is due to a decrease in harvest index.

Taxon: riceOryza sativae4
Organ / stage: ear primordial stagee4
Outcome: decrease in the yield of the ricee4
Qualifier: decrease in its harvest index(HI)e4

Verbatim

e4
“The decrease in the yield of the rice at tillering stage is maily caused by the decrease in its biological yield while that at ear primordial stage is due to the decrease in its harvest index(HI)”
✓ located after whitespace/quote normalisation · abstract, characters 576–773

Title

Effect of the Irrigation with Water Polluted by Diesel Oil at Two Rice Gr owth Stages on Rice Yield

Jinhu Wang Journal of Suzhou Railway Teachers College 2002

Other claims from this paper (5)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Late-rice yield tended to decrease with time compared with early-rice yield.

Taxon: RiceOryza sativat0
Outcome: late-rice yielde0
Direction: decreasee0
Comparator: early-rice yielde0

Not reportedTreatment

Verbatim

t0
“Rice Field”
✓ located verbatim in the source · title, characters 54–64

e0
“late-rice yield tended to decrease, compared with early-rice yield”
✓ located verbatim in the source · abstract, characters 374–440

Title

Yield Trends and Reasons for Their Change in Red-soil Rice Field with Long-term Organic Matter Circling

Xie Xiao-li 2007

Other claims from this paper (8)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Greater shade tended to decrease grain yield.

Taxon: upland riceOryza sativat0
Treatment: shade levelse0
Outcome: grain yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“The shade levels tend to decrease grain yield and increase unfilled grain.”
✓ located verbatim in the source · abstract, characters 667–741

t0
“upland rice”
✓ located verbatim in the source · title, characters 50–61

Title

Grain yield and yield attributes response of four upland rice (Oryza sativa L.) promising lines to shade stress

G R Sadimantara; E Febrianti; N W S Suliartini; et al. IOP Conference Series Earth and Environmental Science 2020. doi:10.1088/1755-1315/454/1/012188

Other claims from this paper (3)

Observation Shade levels affected grain yield and yield attributes.
Intervention effect Greater shade tended to increase unfilled grain.
Observation GS12-1 was a better line for panicle length and grain yield.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in annual growth rate of rice area and yield resulted in a decrease in the annual growth rate of rice production.

Taxon: riceOryza sativae0
Outcome: annual growth rate of rice productione7
Direction: decreasee7
Qualifier: The decrease of annual growth rate of rice area and yielde7

Verbatim

e0
“An approach to increase rice yield and production was discussed”
✓ located verbatim in the source · abstract, characters 10–73

e7
“The decrease of annual growth rate of rice area and yield resulted in the decrease of annual growth rate of rice production”
✓ located verbatim in the source · abstract, characters 1070–1193

Title

Analysis of status and constraints of rice production in the world.

Defeng Zhu; Cheng ShiHua; Zhang Yu-ping; et al. Zhongguo nongye Kexue 2010

Other claims from this paper (19)

Observation Rice planting area increased by 32% from 1961 to 2006.
Observation Rice yield increased 1.21 times, mainly due to semi-dwarf varieties and hybrids.
Observation Rice production increased 1.92 times.
Observation Planting area increase contributed 27% of the increase of rice production.
Observation Yield increase contributed 73% of the increase of rice production.
Observation The annual growth rate of rice planting area decreased significantly since the 1960s.
Observation The annual growth rate of rice yield was 2.58% in the 1980s.
Observation The annual growth rate of rice yield was 0.98% in the 1990s.
Observation The annual growth rate of rice yield was 1.16% after 2000.
Observation The annual growth rate of rice production was 2.73% in the 1980s.
Observation The annual growth rate of rice production was 1.48% in the 1990s.
Observation The annual growth rate of rice production was 0.88% after 2000.
Observation More frequent pest damage and natural disasters limit rice production.
Observation Low contribution of rice production technology to yield increase limits rice production.
Observation Yield is declining in the multiple-cropping system, limiting rice production.
Observation Low production profit limits rice production.
Recommendation The authors recommend breeding of high-yielding varieties and hybrids and practice of new Africa rice varieties in Africa to increase global rice yield.
Recommendation The authors recommend integrated rice management technology to reduce the yield gap.
Recommendation The authors recommend mechanized rice production technology and enhanced policy support for rice production.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Beyond the protein-yield threshold, a further increase in rice protein content results in a decrease in grain yield.

Taxon: RiceOryza sativat0
Compound: protein contente0
Outcome: grain yielde0
Direction: decreasee0

Verbatim

e0
“further increase in the protein content results in a decrease in grain yield”
✓ located verbatim in the source · abstract, characters 1205–1281

t0
“Rice”
✓ located verbatim in the source · title, characters 47–51

Title

Influence of Environment on Protein Content of Rice¹

K. A. Gomez; S. K. De Datta Agronomy Journal 1975. doi:10.2134/agronj1975.00021962006700040029x

Other claims from this paper (6)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Local tarom was the most cold-sensitive variety, with 29% yield decrease.

Taxon: riceOryza sativat0
Material: local tarom varietye0
Outcome: yield decreasee0
Direction: moste0
Value: 29%e0

Verbatim

e0
“the most sensitive one with most percentage of yield decrease (29%) was local tarom variety.”
✓ located verbatim in the source · abstract, characters 1547–1639

t0
“Rice Cultivars”
✓ located verbatim in the source · title, characters 62–76

Title

Temperature Effect on Yield and Yield Components of Different Rice Cultivars in Flowering Stage

R. Ghadirnezhad; A. Fallah International Journal of Agronomy 2014. doi:10.1155/2014/846707

Other claims from this paper (5)

Intervention effect Low temperature significantly affected panicle number.
Intervention effect Low temperature significantly affected panicle length.
Intervention effect Low temperature significantly affected numbers of full, empty and total grains.
Intervention effect Low temperature significantly reduced rice yield.
Observation Shirudi was the most cold-tolerant variety, with 19% yield decrease.

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Yield decrease was associated with shorter growth duration together with increasing temperature.

Taxon: riceOryza sativae0
Treatment: increasing temperaturee7
Outcome: Decrease in yielde7
Direction: Decreasee7
Qualifier: lowering growth duratione7

Verbatim

e0
“impact of climate change on rice production”
✓ located verbatim in the source · abstract, characters 529–572

e7
“Decrease in yield were mainly associated with lowering growth duration along with increasing temperature”
✓ located verbatim in the source · abstract, characters 2152–2256

Title

Modeling the sensitivity of CERES-Rice model: An experience of Nepal

A Lamsal; LP Amgai; A Giri Agronomy Journal of Nepal 2013. doi:10.3126/ajn.v3i0.8982

Other claims from this paper (15)

Method / resource The CSM-CERES-Rice model had an RMSE of 747.35 kg/ha for grain yield.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.793 for grain yield.
Method / resource The CSM-CERES-Rice model had an RMSE of 1.106 days for anthesis.
Method / resource The CSM-CERES-Rice model had an RMSE of 2.58 days for maturity.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.99 for anthesis and maturity.
Method / resource The CSM-CERES-Rice model had an RMSE of 0.004 kg/ha for individual grain weight.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.633 for individual grain weight.
Intervention effect Under decreasing climatic scenarios, simulated Prithivi yield increased by 62%.
Intervention effect Under decreasing climatic scenarios, simulated Masuli yield increased by 41%.
Intervention effect Under decreasing climatic scenarios, simulated Sunaulo Sugandha yield increased by 42%.
Intervention effect Under increasing climate change scenarios, simulated Prithivi yield declined by 80%.
Intervention effect Under increasing climate change scenarios, simulated Masuli yield declined by 46%.
Intervention effect Under increasing climate change scenarios, simulated Sunaulo Sugandha yield declined by 40%.
Association Temperature was the most sensitive factor for simulated rice yield potential compared with other factors.
Association Hybrid rice showed more vulnerability to climate change than the other cultivars.

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.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt stress caused a linear decrease in paddy yield.

Taxon: RiceOryza sativat0
Treatment: Salt stresse0
Outcome: paddy yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“Rice (Oryza sativa L.) Cultivars”
✓ located verbatim in the source · title, characters 78–110

e0
“Salt stress induced a linear decrease in biological and paddy yield and total plant biomass”
✓ located verbatim in the source · abstract, characters 597–688

Title

Consequence of Salinity on Biological Yield, Grain Yield and Harvest Index in Rice (Oryza sativa L.) Cultivars

Yogesh Mishra; D. K. Dwivedi; Pramila Pandey Environment and Ecology 2014

Other claims from this paper (14)

Intervention effect Salinity did not affect tiller number in rice.
Intervention effect Salinity significantly affected flag leaf area during grain filling.
Association Grain yield per plant had a highly significant positive genotypic correlation with biological yield.
Association Grain yield per plant had a highly significant positive genotypic correlation with harvest index.
Association Grain yield per plant had a highly significant positive phenotypic correlation with harvest index.
Association Grain yield per plant had a highly significant positive phenotypic correlation with biological yield.
Intervention effect Salt stress caused a linear decrease in biological yield.
Intervention effect Salt stress caused a linear decrease in total plant biomass.
Association Harvest index followed a second degree equation under salt stress.
Association Harvest index had the highest positive direct phenotypic effect on grain yield per plant.
Association Grains per panicle had the highest positive direct genotypic effect on grain yield per plant.
Observation Rice showed moderate resistance to salinity.
Observation Rice showed a great degree of genotypic variation for salinity response.
Recommendation The authors consider development of varieties with enhanced salt tolerance possible with appropriate strategies and advanced techniques.

“yield decrease”

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