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“decrease in density”

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plus 1 non-evaluative

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2010

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Organism: Oryza sativa ✕

Mechanismhypothesisoriginal resultpositivebasis n/a

Claim · model-written summary

Farmer's plowing is assumed to be a cause of the decrease in small brown planthopper density.

Taxon: riceOryza sativae0
Treatment: Farmer's plowinge6
Interactor: SBPHe6pest
Outcome: SBPH density decreasee6

Verbatim

e0
“In western and southern coast parts of 5 districts, Jindo, Wando, Shinan, Haenam and Muan, rice was severely damaged by RSV from 2008 to 2009”
✓ located verbatim in the source · abstract, characters 568–709

e6
“Farmer's plowing this season assumed to be a cause of SBPH density decrease”
✓ located verbatim in the source · abstract, characters 1187–1262

Title

Analysis of the Occurrence of Rice stripe virus in Jeonnam Province

Sug-Ju Ko; Beom-Ryong Kang; Do-Ik Kim; et al. Research in Plant Disease 2011. doi:10.5423/rpd.2011.17.3.351

Other claims from this paper (3)

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Rain washed guttation fluid from infected rice leaves and decreased bacterial load.

Taxon: riceOryza sativat0
Treatment: Raine0
Interactor: Xanthomonas oryzae pv. oryzaeXanthomonas oryzae pv. oryzaet0pathogen
Outcome: bacterial load in the infected leafe0
Direction: decreasee0

Verbatim

e0
“Rain washed off the guttation fluid which resulted in decrease of bacterial load in the infected leaf.”
✓ located verbatim in the source · abstract, characters 1116–1218

t0
“Xanthomonas oryzae pv. oryzae population density in guttation fluid and on the spread of bacterial blight in rice”
✓ located verbatim in the source · title, characters 29–142

Title

Effect of rain simulation on Xanthomonas oryzae pv. oryzae population density in guttation fluid and on the spread of bacterial blight in rice

R. Kiran; P. P. Singh Journal of Applied and Natural Science 2015. doi:10.31018/jans.v7i1.565

Other claims from this paper (7)

Intervention effect One day after inoculation, rain simulated rice plots had fewer bacterial colonies than plots without rain.
Observation Bacterial population density increased gradually in both rain treatments.
Intervention effect Seven days after inoculation, bacterial log cfu was lower in rain simulated than non-rain plots, 5.84 versus 6.28.
Intervention effect At 14 days, bacterial population in guttation fluid did not differ significantly between rain and non-rain plots.
Observation At 14 days, guttation fluid bacterial population was lower than at 7 days.
Intervention effect Disease severity differed significantly between rain simulated and no-rain rice plots.
Intervention effect Disease spread differed between rain simulated and no-rain rice plots.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Authors relate decreased rice photosynthesis and hydraulic conductance under water deficit to reduced major vein thickness.

Taxon: riceOryza sativae0
Organ / stage: major vein thicknesse0
Outcome: photosynthesis and hydraulic conductancee0
Qualifier: under water deficit conditionse0

Verbatim

e0
“the decreased photosynthesis and hydraulic conductance in rice plants under water deficit conditions are related to the decrease in the major vein thickness”
✓ located verbatim in the source · abstract, characters 1108–1264

Title

Influence of leaf vein density and thickness on hydraulic conductance and photosynthesis in rice (Oryza sativa L.) during water stress

Muhammad Adnan Tabassum; Guanglong Zhu; Abdul Hafeez; et al. Scientific Reports 2016. doi:10.1038/srep36894

Other claims from this paper (7)

Intervention effect PEG water deficit significantly decreased rice photosynthetic rate, stomatal conductance and plant hydraulic conductance.
Intervention effect IR-64 had more severe declines in those measures than Hanyou-3.
Intervention effect PEG water deficit significantly decreased major vein thickness.
Intervention effect PEG water deficit had no significant effect on leaf vein density.
Association Photosynthetic rate, stomatal conductance and hydraulic conductance were positively correlated with one another.
Association Those three physiological measures were negatively correlated with leaf vein density.
Association Those three physiological measures were positively correlated with inter-vein distance and major vein thickness.

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