Search claims · PlantClaims

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The percentage decrease in dry weight was lowest for ZD958, intermediate for ND108, and highest for GY115.

Taxon: MaizeZea mayst0
Material: ZD958e0
Outcome: decrease percentagee0
Direction: loweste0
Qualifier: then in ND108 and the highest in GY115e0

Verbatim

e0
“the decrease percentage showed to be the lowest in ZD958,then in ND108 and the highest in GY115.”
✓ located verbatim in the source · abstract, characters 698–794

t0
“Maize”
✓ located verbatim in the source · title, characters 50–55

Title

The Effects of Density on Population Structure of Maize with Different Plant Types

Kai Xiao Acta Agriculturae Boreali-Sinica 2008

Other claims from this paper (8)

Association Stem-leaf angle increased as maize plant type became erect.
Observation At later growth stages, leaf area index ranked GY115 highest, ND108 next, and ZD958 lowest.
Observation ZD958 had a relatively low senescence rate in lower leaves.
Observation Photon perception in middle and lower canopy parts decreased over a day.
Observation Photon perception was higher in ZD958 than ND108, and higher in ND108 than GY115.
Association Dry weight per plant decreased with increasing density.
Association Yield responses to density differed by plant type.
Association Density for maximum yield varied substantially by plant type.

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Greater Xanthium density significantly reduced maize height, fresh weight and dry weight.

Taxon: maizeZea mayse0
Organ / stage: 4-5 leaf growth stagee0
Interactor: X. strumariumXanthium strumariume0weed
Outcome: maize height, fresh weight, dry weighte0
Direction: decreasee0

Verbatim

e0
“an increase in X. strumarium density causes a highly significant decrease in maize height, fresh weight, dry weight and leaf area at the 4-5 leaf growth stage”
✓ located verbatim in the source · abstract, characters 768–926

e1
“Xanthium strumarium L.”
✓ located verbatim in the source · abstract, characters 59–81

Title

Competition between maize and Xanthium strumarium L.

R. Nakova; Ganka Baeva; P. Nikolov Pesticidi I Fitomedicina 2004

Other claims from this paper (5)

Observation Xanthium strumarium was highly competitive with maize.
Association Greater Xanthium density significantly reduced maize leaf area.
Association Greater Xanthium density significantly reduced maize yield.
Observation The largest maize trait decrease occurred at 25 Xanthium plants per metre.
Method / resource The authors suggest regression models could predict maize yield damage from competition.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Restricting shoot-borne root growth strongly decreased the root:shoot dry weight ratio in maize.

Taxon: MaizeZea mayst0
Treatment: Restriction of shoot-borne root growthe0
Outcome: root: shoot dry weight ratioe0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“Maize Plants”
✓ located verbatim in the source · title, characters 36–48

e0
“Restriction of shoot-borne root growth caused a strong decrease in the absorption of root: shoot dry weight ratio and a reduction in shoot growth”
✓ located verbatim in the source · abstract, characters 167–312

Title

Growth, Nitrogen Uptake and Flow in Maize Plants Affected by Root Growth Restriction

Liangzheng Xu; Junfang Niu; Chunjian Li; et al. Journal of Integrative Plant Biology 2009. doi:10.1111/j.1744-7909.2009.00843.x

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Dry matter weight of maize leaves and sheaths decreased at the mature stage.

Taxon: maizeZea mayse0
Organ / stage: mature stagee0
Outcome: dry matter weighte0
Direction: decreasee0

Verbatim

e0
“dry matter weight was related with K fertilizer application rate in the leaves and sheaths of maize,it achieved the maximum in the milk stage,and it had the decrease current in the mature stage”
✓ located verbatim in the source · abstract, characters 140–333

Title

Study on the effect of K fertilizer application on dry matter production and main yield components of maize

Xu Bo 2009

Other claims from this paper (7)

Association Dry matter weight in the leaves and sheaths of maize was related to the K fertilizer application rate.
Observation Dry matter weight of maize leaves and sheaths reached its maximum at the milk stage.
Association Total dry matter weight of maize was related to K fertilizer dosage.
Observation Total dry matter weight of maize increased with advancing growing stage.
Intervention effect Maize yield increased as K fertilizer level rose from 75 to 225 kg/hm2.
Intervention effect Maize yield decreased at the 300 kg/hm2 K fertilizer level.
Intervention effect Maize yield was highest at the 225 kg/hm2 K fertilizer level under the experimental soil fertility conditions.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

dry and fresh weight of seedlings declined during chilling with increasing leaf and day age.

Taxon: MAIZEZea mayst0
Outcome: dry and fresh weight of seedlingse0
Direction: decreasee0
Qualifier: increase of leaf age and day-agee0

Verbatim

e0
“Height, dry and fresh weight of seedlings decreased, solubility protein, solubility sugar and sucrose content assume the trend of decrease along with the increase of leaf age and day-age, but relative electronic conductivity, K +, Mg 2+ and Ca 2+ content of lixivium of plants submit the trend of increase.”
✓ located verbatim in the source · abstract, characters 345–651

t0
“MAIZE SEEDLINGS”
✓ located verbatim in the source · title, characters 47–62

Title

PRIMARY STUDIES ON THE CHILLING SENSITIVITY OF MAIZE SEEDLINGS

Fang Lü; Hua Yin; Cao Wen-zhong; et al. Zhiwu yanjiu 2002

Other claims from this paper (12)

Observation Height declined during chilling with increasing leaf and day age.
Observation solubility protein declined during chilling with increasing leaf and day age.
Observation solubility sugar declined during chilling with increasing leaf and day age.
Observation sucrose content declined during chilling with increasing leaf and day age.
Observation relative electronic conductivity increased with leaf and day age.
Observation K + increased with leaf and day age.
Observation Mg 2+ increased with leaf and day age.
Observation Ca 2+ content of lixivium of plants increased with leaf and day age.
Observation Seedling chilling resistance decreased across the transition to autotrophy.
Observation Chilling sensitivity increased during the transition to autotrophy.
Observation The largest treated-control differences occurred at 15 or 17 days.
Observation Seedling chilling sensitivity was greatest at 15 or 17 days.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Dry matter weight peaked at 5 mg/L zinc and then declined.

Taxon: maizeZea mayst0
Treatment: 5 mg/L of Zn~(2+) culture concentratione0
Outcome: dry matter weighte0
Direction: higheste0

Not reportedComparator

Verbatim

e0
“The dry matter weight of would rise up to the highest at 5 mg/L of Zn~(2+) culture concentration and then decrease afterwards”
✓ located verbatim in the source · abstract, characters 442–567

t0
“maize”
✓ located verbatim in the source · title, characters 90–95

Title

The effects of Zn pollution on seedling growth and cell protective enzyme activity of the maize

Liu Jian-xin Europe PMC (PubMed Central) 2004

Other claims from this paper (7)

Intervention effect Maize seedling growth was inhibited above 50 mg/L zinc.
Intervention effect Increasing zinc reduced maize root length, root volume and seedling height.
Intervention effect Root vigor, leaf nitrate reductase activity and chlorophyll content declined under zinc exposure.
Intervention effect Root MDA content increased.
Intervention effect ACO and POL activity decreased.
Intervention effect POD activity increased.
Intervention effect CAT activity exceeded the contrast at 5 mg/L zinc and then declined.

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Greater Xanthium density significantly reduced maize yield.

Taxon: maizeZea mayse0
Interactor: X. strumariumXanthium strumariume0weed
Outcome: maize yielde0
Direction: decreasee0

Verbatim

e0
“an increase in X. strumarium density causes a highly significant decrease in maize height, fresh weight, dry weight and leaf area at the 4-5 leaf growth stage, as well as maize yield”
✓ located verbatim in the source · abstract, characters 768–950

Title

Competition between maize and Xanthium strumarium L.

R. Nakova; Ganka Baeva; P. Nikolov Pesticidi I Fitomedicina 2004

Other claims from this paper (5)

Observation Xanthium strumarium was highly competitive with maize.
Association Greater Xanthium density significantly reduced maize height, fresh weight and dry weight.
Association Greater Xanthium density significantly reduced maize leaf area.
Observation The largest maize trait decrease occurred at 25 Xanthium plants per metre.
Method / resource The authors suggest regression models could predict maize yield damage from competition.

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Greater Xanthium density significantly reduced maize leaf area.

Taxon: maizeZea mayse0
Organ / stage: 4-5 leaf growth stagee0
Interactor: X. strumariumXanthium strumariume0weed
Outcome: leaf areae0
Direction: decreasee0

Verbatim

e0
“an increase in X. strumarium density causes a highly significant decrease in maize height, fresh weight, dry weight and leaf area at the 4-5 leaf growth stage”
✓ located verbatim in the source · abstract, characters 768–926

Title

Competition between maize and Xanthium strumarium L.

R. Nakova; Ganka Baeva; P. Nikolov Pesticidi I Fitomedicina 2004

Other claims from this paper (5)

Observation Xanthium strumarium was highly competitive with maize.
Association Greater Xanthium density significantly reduced maize height, fresh weight and dry weight.
Association Greater Xanthium density significantly reduced maize yield.
Observation The largest maize trait decrease occurred at 25 Xanthium plants per metre.
Method / resource The authors suggest regression models could predict maize yield damage from competition.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Predawn leaf ABA content increased by 100-200 ng g(-1) dry weight in droughted plants at 7 days after withholding irrigation.

Taxon: maizeZea mayse0
Treatment: droughted plantse3
Outcome: Predawn leaf ABA contente3
Direction: increasede3
Value: 100-200 ng g(-1) dry weighte3
Qualifier: at 7 DAWIe3
Comparator: fully-watered controlse1

Verbatim

e0
“field-grown maize (Zea mays L.) subjected to drought”
✓ located verbatim in the source · abstract, characters 74–126

e1
“Relative to fully-watered controls, xylem pH increased by about 0.2 units one day after withholding irrigation (DAWI) and conductivity decreased by about 0.25 mS cm(-1) 1-3 DAWI”
✓ located verbatim in the source · abstract, characters 524–701

e3
“Predawn leaf ABA content in droughted plants increased by 100-200 ng g(-1) dry weight at 7 DAWI coinciding with a decrease in stomatal conductance before any significant decrease in midday leaf water potential was observed”
✓ located verbatim in the source · abstract, characters 1399–1621

Title

Drought‐induced changes in xylem pH, ionic composition, and ABA concentration act as early signals in field‐grown maize (Zea mays L.)

Andi Bahrun; Christian R. Jensen; Folkard Asch; et al. Journal of Experimental Botany 2002. doi:10.1093/jexbot/53.367.251

Other claims from this paper (12)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Stomatal conductance decreased in droughted plants before any significant decrease in midday leaf water potential.

Taxon: maizeZea mayse0
Treatment: droughted plantse3
Outcome: stomatal conductancee3
Direction: decreasee3
Qualifier: before any significant decrease in midday leaf water potential was observede3
Comparator: fully-watered controlse1

Verbatim

e0
“field-grown maize (Zea mays L.) subjected to drought”
✓ located verbatim in the source · abstract, characters 74–126

e1
“Relative to fully-watered controls, xylem pH increased by about 0.2 units one day after withholding irrigation (DAWI) and conductivity decreased by about 0.25 mS cm(-1) 1-3 DAWI”
✓ located verbatim in the source · abstract, characters 524–701

e3
“Predawn leaf ABA content in droughted plants increased by 100-200 ng g(-1) dry weight at 7 DAWI coinciding with a decrease in stomatal conductance before any significant decrease in midday leaf water potential was observed”
✓ located verbatim in the source · abstract, characters 1399–1621

Title

Drought‐induced changes in xylem pH, ionic composition, and ABA concentration act as early signals in field‐grown maize (Zea mays L.)

Andi Bahrun; Christian R. Jensen; Folkard Asch; et al. Journal of Experimental Botany 2002. doi:10.1093/jexbot/53.367.251

Other claims from this paper (12)

“dry weight decrease”

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