Cenchrus ciliaris

  • Genus

    Cenchrus

  • Family
    Poaceae
  • Synonyms

    Cenchrus bulbosus

    Cenchrus glaucus

    Cenchrus longifolius

    Cenchrus melanostachyus

    Cenchrus mutabilis

    Cenchrus pennsetiformis

    Cenchrus pubescens

    Pennisetum rangei

    Pennisetum rufescens

    Pennisetum cenchroides

    Pennisetum ciliare

    Pennisetum distylum

    Pennisetum incomptum

    Pennisetum oxphyllum

    Pennisetum pachyllum

    Pennisetum panormitanum

    Pennisetum prieurii

    Pennisetum rufescens

    Pennisetum teneriffae

    Read More
  • Common names

    Buffelgrass

    Buffel grass

    Common buffelgrass

    Common buffel grass

    African foxtail grass

    African foxtailgrass

    Read More

See More

Purity

  • ISTA PSD

    43

    See Details
  • AOSA PSU

    18

    See Details
  • Purity working weight (grams)

    12

    See Details
  • Other species (OSD)/Noxious working weight (grams)

    120

    See Details

PSU 18

Fascicle consisting of bristles and spikelets, provided a caryopsis with some degree of endosperm development can be detected (either by slight pressure or by examination over light).

Caryopsis or piece of broken caryopsis larger than one-half of the original size.

TWS Notes

PSD 43

Fascicle or burr with involucre of bristles and 1–5 spikelets, each comprising glumes, lemma and palea enclosing a caryopsis, plus attached sterile lemma.

Floret, with lemma and palea enclosing a caryopsis. Caryopsis.

Piece of caryopsis larger than one-half the original size.

Cenchrus: burr or fascicle, with or without caryopsis.

TWS Notes

Purity working weight (grams)

Noxious working weight/OSD

Germination and dormancy breaking method

Media

 Agar 1% or Top Blotter or Sand

Moistened with

 KNO3

Prechill

 Yes

Prechill Temperature

5 Dark°C

Prechill Days

7

Other dormancy breaking recommendations

See rules

Germination Temperature

 35-20°C

Hours light/dark

 8/16

Days in warm germ

 28

Germination Image Gallery

  • Normal seedling
  • Normal seedling

Description of Normal/Abnormal Seedlings:

See ISTA or AOSA Rules

Modified Germination:

Test can be terminated at 14 days if the dormancy is checked with tetrazolium at the termination of the germination test.

Tetrazolium (TZ) Methodology Recommendations:

  • Imbibition method and time

    Imbibe overnight between moist media or immersed in water

  • Option(s) to prepare and cut seed for staining

    Longitudinal cut seed through embryo from base of seed ½ into seed

  • Percentage (%) of TZ solution

    1.0

  • Time and temp of staining (hr)

    Usually 4 hours up to overnight if needed in oven between 30-35°C

  • List of important seed structures requiring staining:
    Embryo and scutellum must stain. Endosperm does not stain

TZ Methodology Gallery