Bromus ciliatus

  • Genus

    Bromus

  • Family
    Poaceae
  • Synonyms

    Bromus dudleyi

    Bromopsis canadensis

    Bromopsis ciliata

    Bromus ciliatus var. genuinus

    Bromus ciliatus var. intonsus

    Bromus richardsonii var. pallidus

    Bromus ciliatus var. ciliatus

    Bromus ciliaris

    Forasaccus ciliatus

    Zerna canadensis

    Zerna ciliata

    Bromus ciliatus var. denudatus

    Bromus hookeri var. canadensis

    Bromus hookeri var. ciliatus

    Bromus pubescens var. canadensis

    Bromus pubescens var. ciliatus

    Bromus purgans var. ciliatus

    Bromus purgans var. pallidus

    Bromus ciliaris subvar. denudatus

    Bromus ciliatus subvar. denudatus

    Bromus ciliatus f. denudatus

    Bromus ciliatus f. intonsus

    Bromus ciliates var. ciliatus

    Bromus ciliatusf. denudatus

    Bromus ciliatus var. intonsus

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  • Common names

    Fringed brome

    Fringed brome-grass

    Fringed brome grass

    Fringed bromegrass

    Ciliate brome

    Ciliate brome-grass

    Ciliate brome grass

    Ciliate bromegrass

    Fringed chess

    Fringe brome

    Swamp chess

    Swamp-chess

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Purity

  • ISTA PSD

    12

    See Details
  • AOSA PSU

    50

    See Details
  • Purity working weight (grams)

    12

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

    120

    See Details

PSU 50

Intact achene, with or without one or more of the following structures: beak, bristle, hairs, pappus, wing, or firmly attached floral remnants, provided a true seed with some degree of embryo development can be detected (either by slight pressure or by examination over light). Piece of broken achene larger than one-half of the original size, unless no seed is present. Seed, with or without pericarp/seed coat. Piece of broken seed, with or without pericarp/seed coat, larger than one-half the original size.

Special consideration:

  • For Layia, the persistent bract enclosing the ray achene is part of the pure seed unit.

TWS Notes

PSD 12

Seed, with or without testa, testa with or without hairs.

Piece of seed larger than one-half the original size, with or without testa.

TWS Notes

Purity working weight (grams)

Noxious working weight/OSD

Germination and dormancy breaking method

Media

 Agar 1%, Top blotter or paper

Moistened with

 KNO3

Prechill

 Yes

Prechill Temperature

10 Dark°C

Prechill Days

5

Other dormancy breaking recommendations

Check for dormancy of firm ungerminated seeds at the termination of the test, using the basic criteria indicated in the Tetrazolium section below.

Germination Temperature

 25-15°C

Hours light/dark

 8/16

Days in warm germ

 14

Germination Image Gallery

  • Normal seedling
  • Normal seedling

Description of Normal/Abnormal Seedlings:

Seedling conditions present (singly or in combination), which would cause the seedling to be evaluated as abnormal (not considered viable):

Shoot: missing; or proportionately short, thick, grainy, no leaf, leaf badly shredded or longitudinally split. If the shoot is thin, spindly, pale or watery; has deep open cracks in the mesocotyl.

Root: missing or if root is shorter than the length of the seed. 

Seedling: Decayed at point of attachment to scutellum; one or more essential structures exhibiting decay from primary infection. Note: if shoot and root are reasonably in balance, the decay is considered secondary. If the seedling is albino. When caryopsis is detached from the root-shoot axis.

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

  • 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

  • Abnormal - embryo