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“knobs”

12 matchesgrouped into 4 categories

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1990 2000 ’10 ’20

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Organism groups follow NCBI Taxonomy: the spellings of one organism are merged, a claim naming several organisms sits in each group, and claims whose value names no organism are under “not stated”.

not stated 6

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

First-generation micropropagated ginger had smaller rhizome knobs.

Material: micropropagated plantse0
Outcome: knobse0
Direction: smallere0

Not reportedTaxon

Verbatim

e0
“In the first generation ex vitro, micropropagated plants had significantly (P<0.01) reduced rhizome yield with smaller knobs and more roots.”
✓ located verbatim in the source · abstract, characters 177–317

Title

Field evaluation of micropropagated and conventionally propagated ginger in subtropical Queensland

MK Smith; SD Hamill Australian Journal of Experimental Agriculture 1996. doi:10.1071/ea9960347

Other claims from this paper (9)

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The wheat-rye addition line had significantly fewer wheat-origin perinucleolar rDNA knobs.

Taxon: wheat-ryee0
Material: wheat-rye addition linee0
Gene: rDNAe0
Outcome: number of wheat-origin perinucleolar rDNA knobse0
Direction: decreasee0

Verbatim

e0
“in the wheat-rye addition line there is a significant decrease in the number of wheat-origin perinucleolar rDNA knobs”
✓ located verbatim in the source · abstract, characters 1404–1521

Title

Interplay of Ribosomal DNA Loci in Nucleolar Dominance: Dominant NORs Are Up-Regulated by Chromatin Dynamics in the Wheat-Rye System

Manuela Silva; H. Sofia Pereira; Miguel Bento; et al. PLoS ONE 2008. doi:10.1371/journal.pone.0003824

Other claims from this paper (5)

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The combined treatment produced knob protein content of 21.48%.

Outcome: knobs content of proteine0
Value: 21.48%e0

Not reportedTaxonTreatmentComparatorDirection

Verbatim

e0
“the knobs content of protein 21.48%”
✓ located verbatim in the source · abstract, characters 1406–1441

Title

Efficiency of Nano-chitosan and Azotobacter on growth and yield of kohlrabi plant

hayder AbdulMunem turk; Mahmood Talib Mahmood; Mazin Mossa Abid Ameen; et al. Tikrit Journal for Agricultural Sciences 2025. doi:10.25130/tjas.25.3.13

Other claims from this paper (6)

Intervention effect The combined treatment produced superior plant length of 60 cm.
Intervention effect The combined treatment produced 21.67 leaves per plant.
Intervention effect The combined treatment produced leaf chlorophyll content of 77.59 mg 100 g -1.
Intervention effect The combined treatment produced knob weight of 278.9 g.
Intervention effect The combined treatment produced total yield of 14.87 ton . h -1.
Intervention effect The combined treatment produced nitrogen content of 3.43%.

109379 3

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Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Challenger treated with 70% NPK plus 6 kg/ha biofertilizer showed a 36.47% increase in fresh weight of knobs compared with untreated Challenger.

Taxon: KohlrabiBrassica oleracea var. gongylodest0
Material: Challengere0
Treatment: a combination of 70% NPK and 6 kg/ha of biofertilizere0
Outcome: fresh weight of knobse1
Direction: increasee1
Value: 36.47%e1
Comparator: untreated Challenger varietye0

Verbatim

t0
“Kohlrabi (Brassica oleracea var. caulorapa L.)”
✓ located verbatim in the source · title, characters 40–86

e0
“The Challenger variety, when treated with a combination of 70% NPK and 6 kg/ha of biofertilizer, exhibited significant enhancements in various parameters compared to the untreated Challenger variety”
✓ located verbatim in the source · abstract, characters 1003–1201

e1
“a 36.47% increase in fresh weight of knobs”
✓ located verbatim in the source · abstract, characters 1213–1255

Title

Enhancing Growth, Yield, and Quality of Kohlrabi (Brassica oleracea var. caulorapa L.) with Biofertilizers: A Sustainable Approach for Reducing Chemical Fertilizer Dependency

Aklima Khatun; Thamina Akter; Minhazul Kashem Chowdhury; et al. South Asian Journal of Agriculture 2025. doi:10.3329/saja.v10i1.80236

Other claims from this paper (7)

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

PBS alone or with PMF significantly decreased knob fiber.

Taxon: kohlrabiBrassica oleracea var. gongylodese0
Treatment: PBS (1,2 and 3) inoculates alone or combined with PMF dosese0
Interactor: PBS (1,2 and 3)e0symbiont
Outcome: fiber%e0
Direction: decreasede0
Comparator: controle0

Verbatim

e0
“Applying PBS (1,2 and 3) inoculates alone or combined with PMF doses improved the quality of kohlrabi knobs by increasing the values of total soluble solid TSS%, carbohydrates% and L-ascorbic acid% content in the same time, it decreased significantly the fiber% and nitrate content in knob as compared to the control in both seasons.”
✓ located verbatim in the source · abstract, characters 758–1091

Title

The Role of New Transformants Phosphate Bio-Stimulates (PBS) Bacteria Inoculates on Growth, Yield and Quality of Kohlrabi Plants

H. Soltan; S. Osman; I. Tantawy Journal of Plant Production 2021. doi:10.21608/jpp.2021.178930

Other claims from this paper (7)

Intervention effect PBS inoculants, alone or with PMF, increased kohlrabi growth, yield, and quality versus control.
Intervention effect PBS2 gave the best traits alone or with PMF in both seasons.
Intervention effect PBS alone or with PMF increased knob total soluble solids.
Intervention effect PBS alone or with PMF increased knob carbohydrates.
Intervention effect PBS alone or with PMF increased knob L-ascorbic acid.
Intervention effect PBS alone or with PMF significantly decreased knob nitrate.
Recommendation The authors recommend PBS alone or with low PMF doses.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

PBS alone or with PMF significantly decreased knob nitrate.

Taxon: kohlrabiBrassica oleracea var. gongylodese0
Treatment: PBS (1,2 and 3) inoculates alone or combined with PMF dosese0
Interactor: PBS (1,2 and 3)e0symbiont
Outcome: nitrate contente0
Direction: decreasede0
Comparator: controle0

Verbatim

e0
“Applying PBS (1,2 and 3) inoculates alone or combined with PMF doses improved the quality of kohlrabi knobs by increasing the values of total soluble solid TSS%, carbohydrates% and L-ascorbic acid% content in the same time, it decreased significantly the fiber% and nitrate content in knob as compared to the control in both seasons.”
✓ located verbatim in the source · abstract, characters 758–1091

Title

The Role of New Transformants Phosphate Bio-Stimulates (PBS) Bacteria Inoculates on Growth, Yield and Quality of Kohlrabi Plants

H. Soltan; S. Osman; I. Tantawy Journal of Plant Production 2021. doi:10.21608/jpp.2021.178930

Other claims from this paper (7)

Intervention effect PBS inoculants, alone or with PMF, increased kohlrabi growth, yield, and quality versus control.
Intervention effect PBS2 gave the best traits alone or with PMF in both seasons.
Intervention effect PBS alone or with PMF increased knob total soluble solids.
Intervention effect PBS alone or with PMF increased knob carbohydrates.
Intervention effect PBS alone or with PMF increased knob L-ascorbic acid.
Intervention effect PBS alone or with PMF significantly decreased knob fiber.
Recommendation The authors recommend PBS alone or with low PMF doses.

Zea mays 2

Show all 2 →

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Repeat copy number varies significantly from about 100 to 25,000.

Taxon: maizeZea mayst0
Outcome: copy numbere0
Direction: varye0
Value: about 100 to 25,000e0

Verbatim

e0
“copy number of each can vary significantly from about 100 to 25,000”
✓ located verbatim in the source · abstract, characters 1256–1323

t0
“maize”
✓ located verbatim in the source · title, characters 54–59

Title

Complex structure of knobs and centromeric regions in maize chromosomes.

E V Ananiev; R L Phillips; H W Rines PubMed 2000

Other claims from this paper (13)

Observation TR1 knob repeats can form fold-back DNA segments.
Observation CentC was identified as a centromeric tandem repeat family.
Observation Maize knob and centromeric repeat blocks are interrupted by other repeats.
Observation Inserted sequences are mainly full-size retrotransposable elements.
Observation Certain retrotransposable elements preferentially associate with knobs or centromeres.
Observation Retrotransposable elements preferentially integrate at hot spots of the 180-bp repeat.
Observation CentC, TR1 and 180-bp repeats occur on each tested maize chromosome.
Observation Maize chromosomes vary in centromeric repeat size.
Observation Maize chromosomes vary in knob size and composition.
Observation Maize knobs contain 180-bp repeats, TR1 repeats, or both.
Observation Repeat elements also form micro clusters detectable only by in situ hybridization.
Mechanism Maize knobs may be considered megatransposable elements.
Mechanism Interspersed retrotransposable elements and tandem repeats may be a basic feature of eukaryotic heterochromatin organization.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Knob percentage, number, size, position and frequency varied within and among populations.

Taxon: maizeZea mayst0
Outcome: variation in the percentage, number, size, chromosome position and frequencies of the heterochromatic blockse0

Verbatim

t0
“maize landraces”
✓ located verbatim in the source · title, characters 53–68

e0
“significant intra and inter-populational variation in the percentage, number, size, chromosome position and frequencies of the heterochromatic blocks, which are called knobs”
✓ located verbatim in the source · abstract, characters 433–606

Title

Exploring karyotype diversity of Argentinian Guaraní maize landraces: Relationship among South American maize

María Florencia Realini; Lidia Poggio; Julián Cámara Hernández; et al. PLoS ONE 2018. doi:10.1371/journal.pone.0198398

Other claims from this paper (8)

Observation Knob sequence composition did not differ significantly among Guaraní populations.
Observation B chromosomes were not detected.
Observation AB10 chromosomes occurred at low frequency in six populations.
Observation Karyotypes characterized each population and defined NEA germplasm chromosomal constitution.
Observation Karyotype parameters distinguished Popcorn and Floury maize population groups.
Observation NEA and NWA maize showed important karyotype differences.
Observation Results supported two pathways of South American maize introduction.
Observation Results confirmed NEA and NWA as two diversification centers of Argentinian native maize.

Triticum aestivum 1

Show all 1 →

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Stalk strength correlated significantly with first and second caudex knobs.

Taxon: wheatTriticum aestivumt0
Organ / stage: first,second knob of the caudexe0
Outcome: correlatione0

Not reportedDirection

Verbatim

t0
“wheat”
✓ located verbatim in the source · title, characters 69–74

e0
“the correlation with the first,second knob of the caudex were significant”
✓ located verbatim in the source · abstract, characters 375–448

Title

Multiple correlation analysis on physical strength and properties of wheat stalk

YU Ze-gao 2003

Other claims from this paper (7)

Lexical search (BM25). All words must match; if nothing does, any word. Organism names also match every spelling of the same organism. No semantic search yet.

“knobs”

Claim types

Direction of the findings

Over time

Claim type

Research area

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not stated 6

109379 3

Zea mays 2

Triticum aestivum 1