Search claims · PlantClaims

maize 11

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize genetic variance did not decline from 1975 to 2004.

Taxon: maizeZea mayse1
Outcome: magnitude of genetic variancee0
Direction: neither a decreasee0

Verbatim

e0
“There was neither a decrease in the magnitude of genetic variance nor a change in the predominance of variance due to GCA over variance due to SCA.”
✓ located verbatim in the source · abstract, characters 4290–4437

e1
“the maize program of the University of Hohenheim”
✓ located verbatim in the source · abstract, characters 3978–4026

Title

Theoretical and experimental investigations on the exploitation of heterosis in hybrid breeding

Sandra E. Fischer University writing server of the University of Hohenheim (Universität Hohenheim) 2009

Other claims from this paper (18)

Observation Triticale had low heterosis.
Association Between-group factorials had a higher GCA-to-SCA variance ratio than within-group designs.
Association Genetically distinct populations showed a more favorable GCA-to-SCA ratio than less distinct populations.
Method / resource The enumeration algorithm improved all criteria for identifying heterotic groups.
Observation F1 performance was the leading criterion for developing and enriching heterotic groups.
Observation Heterosis was the next most important criterion for developing and enriching heterotic groups.
Observation US exotic maize germplasm had higher genetic diversity than Central European groups.
Recommendation The authors recommend introgressing non-Stiff Stalk germplasm into the Flint group.
Recommendation The authors recommend introgressing Stiff Stalk germplasm into the Dent group.
Observation East European rye OPVs had higher genetic diversity than Central European groups.
Observation The Carsten rye group had a narrow genetic base.
Recommendation The authors recommend the Carsten group as the primary target for genetic broadening.
Association All five rye OPVs were genetically closer to Petkus than Carsten.
Observation Two rye OPVs were good candidates for introgression into Petkus.
Observation One rye OPV was a good candidate for introgression into Carsten.
Recommendation The authors suggest using selected clones of these rye populations for introgression.
Observation Maize GCA variance remained predominant over SCA variance.
Recommendation The authors recommend continually enriching heterotic groups through germplasm introgression.

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Both physiological changes were significantly greater in vp5 than Vp5.

Taxon: maizeZea mayst0
Material: vp5e0
Outcome: magnitude of the increase or decreasee0
Direction: highere0
Comparator: Vp5e0

Verbatim

e0
“the magnitude of the increase or decrease was significantly higher in vp5 than in Vp5”
✓ located verbatim in the source · abstract, characters 603–688

t0
“Quantitative Proteomic Analyses Identify ABA-Related Proteins and Signal Pathways in Maize Leaves under Drought Conditions”
✓ located verbatim in the source · title, characters 0–122

Title

Quantitative Proteomic Analyses Identify ABA-Related Proteins and Signal Pathways in Maize Leaves under Drought Conditions

Yulong Zhao; Yankai Wang; Hao Yang; et al. Frontiers in Plant Science 2016. doi:10.3389/fpls.2016.01827

Other claims from this paper (10)

Intervention effect Drought increased malondialdehyde content in both maize genotypes.
Intervention effect Drought decreased photosystem II quantum efficiency in both maize genotypes.
Method / resource Proteomics identified 7051 proteins with overlapping expression patterns among replicates.
Observation Only 150 proteins changed expression at least 1.5-fold under drought stress.
Observation In Vp5, 130 proteins showed at least 1.5-fold expression changes under drought.
Observation In vp5, 27 proteins showed at least 1.5-fold expression changes under drought.
Observation Drought up-regulated 67 proteins in an ABA-dependent way.
Observation Drought down-regulated 60 proteins in an ABA-dependent way.
Mechanism ABA regulated maize drought-response pathways related to photosynthesis, oxidative phosphorylation and glutathione metabolism.
Method / resource The study provides a dataset of ABA-dependent, drought-regulated maize proteins.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Silk solute potential fell by 0.2 megapascal similarly across genotypes.

Taxon: maizeZea mayst0
Organ / stage: silke0
Outcome: silk solute potentiale0
Direction: decreasee0
Value: 0.2 megapascale0
Qualifier: similar for all genotypese0

Verbatim

e0
“The magnitude of the decrease in silk solute potential was small (0.2 megapascal) and similar for all genotypes.”
✓ located verbatim in the source · abstract, characters 1238–1350

t0
“Maize”
✓ located verbatim in the source · title, characters 38–43

Title

Plant Factors Controlling Seed Set in Maize

John B. Schoper; Robert J. Lambert; Bruce L. Vasilas; et al. PLANT PHYSIOLOGY 1987. doi:10.1104/pp.83.1.121

Other claims from this paper (12)

Observation Low water potential decreased silk water potential.
Observation Low water potential decreased seed set.
Observation Low water potential left pollen water potential, appearance and viability unaffected.
Observation High temperature decreased pollen water potential by 2 megapascal.
Observation High temperature damaged shed pollen.
Observation High temperature reduced pollen viability.
Observation High temperature reduced pollen shed in two hybrids.
Observation Prolificacy did not increase silk solute accumulation.
Observation Prolificacy improved seed production at low water potential.
Association The hybrid retaining relatively high silk turgor lost the most seed production under water deficit.
Observation Silk solute regulation capability did not vary among hybrids differing in prolificacy.
Observation The prolific hybrid had the least water-deficit effect on pistillate seed production.

corn 4

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Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Following auxin withdrawal, response magnitude to suboptimal auxin doubled.

Taxon: cornZea mays subsp. mayse1
Treatment: withdrawal of exogenous auxine0
Outcome: magnitudee0
Direction: increasee0
Value: two-folde0

Verbatim

e0
“During the 3 hr period following withdrawal of exogenous auxin there is a two-fold increase in magnitude and a three-fold decrease in latent period of a growth response to a sub-optimal level of auxin.”
✓ located verbatim in the source · abstract, characters 428–629

e1
“corn (Zea mays L., Bear Hybrid WF 9×38) coleoptiles”
✓ located verbatim in the source · abstract, characters 20–71

Title

Further characterization of the spontaneous growth response in Zea coleoptile segments

Michael L. Evans; Maria Simon; Mary Jo Vesper Plant and Cell Physiology 1977. doi:10.1093/oxfordjournals.pcp.a075452

Other claims from this paper (7)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Weather conditions, through rainfall amount and distribution, strongly affected the magnitude of residual K effects.

Taxon: CornZea mays subsp. mayse0
Treatment: Weather conditionse2
Outcome: magnitude of residual K effectse2
Qualifier: affected stronglye2

Not reportedDirection

Verbatim

e0
“on a light loam calcareous Mollisol, having 23% clay content, with Illite clay mineral dominance. The soil is moderately supplied K. Corn as test plant was sown in monoculture in the trial. The first 10 years are evaluated in the paper. Soil K-test/AL-K/values did not decrease in the first 6 years, but diminished in the 7–10th years. The light loam soil did not fix the added fertilizer-K strongly.”
✓ located verbatim in the source · abstract, characters 480–880

e2
“The residual effect of build-up K doses was measurable even after the 10th year. Weather conditions, i.e., the amount and distribution of rainfall during the vegetation period, affected strongly the magnitude of residual K effects.”
✓ located verbatim in the source · abstract, characters 1209–1440

Title

THE RESIDUAL EFFECT OF K FERTILIZATION IN A HUNGARIAN CORN MONOCULTURE LONG-TERM FIELD TRIAL, 1990–1999

Péter Csathó Communications in Soil Science and Plant Analysis 2002. doi:10.1081/css-120014509

Other claims from this paper (12)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Following auxin withdrawal, the response latent period fell threefold.

Taxon: cornZea mays subsp. mayse1
Treatment: withdrawal of exogenous auxine0
Outcome: latent periode0
Direction: decreasee0
Value: three-folde0

Verbatim

e0
“During the 3 hr period following withdrawal of exogenous auxin there is a two-fold increase in magnitude and a three-fold decrease in latent period of a growth response to a sub-optimal level of auxin.”
✓ located verbatim in the source · abstract, characters 428–629

e1
“corn (Zea mays L., Bear Hybrid WF 9×38) coleoptiles”
✓ located verbatim in the source · abstract, characters 20–71

Title

Further characterization of the spontaneous growth response in Zea coleoptile segments

Michael L. Evans; Maria Simon; Mary Jo Vesper Plant and Cell Physiology 1977. doi:10.1093/oxfordjournals.pcp.a075452

Other claims from this paper (7)

corn (Zea mays L.) 3

Show all 3 →

Associationobservedoriginal resultmeasured

Claim · model-written summary

The growth response to low IAA increased two to threefold in the first three hours.

Taxon: corn (Zea mays L.)Zea mayst0
Compound: IAAe0
Outcome: magnitude of the growth response to low levels of IAAe0
Direction: increasee0
Value: 2- to 3-folde0
Qualifier: first 3 hours following excisione0

Verbatim

e0
“a 2- to 3-fold increase in the magnitude of the growth response to low levels of IAA and a 3-fold decrease in the latent period of the response during the first 3 hours following excision”
✓ located verbatim in the source · abstract, characters 449–636

t0
“corn (Zea mays L.)”
✓ located verbatim in the source · abstract, characters 31–49

Title

Time-dependent Changes in the Auxin Sensitivity of Coleoptile Segments

Mary Jo Vesper; Michael L. Evans PLANT PHYSIOLOGY 1978. doi:10.1104/pp.61.2.204

Other claims from this paper (8)

Observation Excised corn coleoptiles had low elongation for about 3.5 hours.
Observation Growth rate then increased strongly and persisted for many hours.
Association Sensitivity to IAA increased over the latent period.
Association The response latency decreased threefold in the first three hours.
Association Sensitivity to low IAA rose after an earlier hormone exposure ended.
Observation IAA uptake rate did not rise with responsiveness.
Association IAA dose response changed with time.
Mechanism An auxin dependent inhibitor may influence sensory adaptation.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Growth response to low IAA levels increased two- to threefold over the first three hours after excision.

Taxon: corn (Zea mays L.)Zea mayse1
Treatment: low levels of IAAe0
Outcome: magnitude of the growth responsee0
Direction: increasee0
Value: 2- to 3-folde0
Qualifier: first 3 hours foUowing excisione0

Verbatim

e0
“a 2- to 3-fold increase in the magnitude of the growth response to low levels of IAA and a 3-fold decrease in the latent period of the response during the first 3 hours foUowing excision.”
✓ located verbatim in the source · abstract, characters 449–636

t0
“Coleoptile”
✓ located verbatim in the source · title, characters 51–61

e1
“When segments are excised from corn (Zea mays L.) coleoptiles they exhibit a very low rate of elongation for about 3.5 hours.”
✓ located verbatim in the source · abstract, characters 0–125

Title

Time-dependent Changes in the Auxin Sensitivity of Coleoptile

Mary Jo Vesper; Michael L. Evans 1978

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Latent period of IAA response decreased threefold during the first three hours after excision.

Taxon: corn (Zea mays L.)Zea mayse1
Treatment: low levels of IAAe0
Outcome: latent period of the responsee0
Direction: decreasee0
Value: 3-folde0
Qualifier: first 3 hours foUowing excisione0

Verbatim

e0
“a 2- to 3-fold increase in the magnitude of the growth response to low levels of IAA and a 3-fold decrease in the latent period of the response during the first 3 hours foUowing excision.”
✓ located verbatim in the source · abstract, characters 449–636

t0
“Coleoptile”
✓ located verbatim in the source · title, characters 51–61

e1
“When segments are excised from corn (Zea mays L.) coleoptiles they exhibit a very low rate of elongation for about 3.5 hours.”
✓ located verbatim in the source · abstract, characters 0–125

Title

Time-dependent Changes in the Auxin Sensitivity of Coleoptile

Mary Jo Vesper; Michael L. Evans 1978

Other claims from this paper (9)