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Details for: APG 54880, Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs, RWS 216


Summary Data
Taxonomy:
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
Top Name:
RWS 216
Origin:
Collected – Uganda
Received by APG:
01 Oct 1972
Improvement Status:
Wild material
Form Received:
Seed
Backup Location:
Svalbard Global Seed Vault
Availability
FormQuantityNoteInventoryCart
Seed100 countBASE 54880 2017___2_____ SD
 
There are no images for this accession.

Core Passport Data
Taxonomy:
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
Top Name:
RWS 216
Origin:
Collected – Uganda
Received by APG:
01 Oct 1972
Improvement Status:
Wild material
Form Received:
Seed
Source History
Collected
21 December 1971. 
Locality: 75km E. BIHARAMULO ON GEITA RD.
Aspect: West; Coll Source: Wild; Propagule: Seed; Slope: Gently Rolling; Soil Drainage: Moist; Soil_Texture: Sandy Loam; Rainfall: 1025; Notes: Woodland Forest Margin

21 December 1971.  Uganda

Collector(s):
Donated
01 October 1972.  Uganda

Donator(s):
08 September 2015.  Australia

Donator(s):
Accession Names and Identifiers
RWS 216
Type: Collector identifier

AusTRCF 59922
Type: Donor identifier
Group: AusTRCF
Austraian Tropical Forage

CPI 59922
Type: Institute identifier
Group: CPI
Commonwealth Plant Introduction

ALP 1.55
Type: Priority Score

Narrative
Group Note
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
Genus:
Megathyrsus
Family:
Poaceae (alt. Gramineae)
Subfamily:
Panicoideae
Tribe:
Paniceae
Subtribe:
Melinidinae
Nomen number:

447623
Place of publication:

Austrobaileya 6:572. 2003
Verified:
01/05/2005 by ARS Systematic Botanists.
Common names
English
green panic grass –
Guinea grass –
French
herbe de Guinée –
German
Guineagras –
Italian
erba della Guinea –
Portuguese (Brazil)
capim-colonião –
Spanish
mijo de Guinea –
pasto Guinea –
Swedish
guineagräs –
Other conspecific taxa
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs var. coloratus (C. T. White) B. K. Simon & S. W. L. Jacobs (0 active accession[s])
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs var. pubiglumis (K. Schum.) B. K. Simon & S. W. L. Jacobs (1 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Panicum maximum Jacq.

Homotypic Synonym(s)
Urochloa maxima (Jacq.) R. D. Webster

Heterotypic Synonym(s)
Panicum hirsutissimum Steud.
Panicum maximum Jacq. var. hirsutissimum (Steud.) Oliv.
Panicum maximum Jacq. var. trichoglume Robyns
Annotations
Other Links
Actions
Pathogens
Vouchers
Citations
Pedigree
Intellectual Property Rights
FAO Standard Material Transfer Agreement (SMTA).

Observations

Phenotype Data

CategoryDescriptorDescriptionValueStudyInventoryAvailability
GROWTHGrowth habitDominant growth habitE - Erect (vertical dominant growth)(self-supporting)APG QLD Regen 2016-17 Panicum Megathyrsus  
GROWTHMode of spreadDominant mode of spread (at 1st flower)S - Strongly stoloniferousAPG QLD Regen 2016-17 Panicum Megathyrsus  
MORPHOLOGYLeaf hairsLeaf surface hairiness, fully expanded leaves (at 1st flower)1 - Glabrous (none)APG QLD Regen 2016-17 Panicum Megathyrsus  
MORPHOLOGYLeaf sheath hairsLeaf sheath surface hairiness, fully expanded leaves (at 1st flower)3 - Sparse hairsAPG QLD Regen 2016-17 Panicum Megathyrsus  
MORPHOLOGYLeaf colour (dominant)Dominant leaf colour 4-6 nodes from branch tip (at 1st flower)dark greenAPG QLD Regen 2016-17 Panicum Megathyrsus  
MORPHOLOGYCulm colour (dominant)Dominant culm colour (10-20 days after 1st flower)dark greenAPG QLD Regen 2016-17 Panicum Megathyrsus  
MORPHOLOGY1000 Seed WeightWeight of 1000 seeds in grams1.11111APG QLD Regen 2016-17 Panicum Megathyrsus  
MORPHOLOGYMaximum leaf lengthMaximum leaf size of fully expanded leaves (at first flower)5 - >40 cmAPG QLD Regen 2016-17 Panicum Megathyrsus  
OTHERwet down dateDate seeds were first wetted for germination (in laboratory)24/10/2016 12:00:00 AMAPG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYDays to First FlowerDays from wetting up to start of flowering phase144APG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYMinimum canopy heightMinimum canopy (foliage) height (cm) (without support) (30-50 days after 1st flower) 180APG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYMaximum canopy heightMaximum canopy (foliage) height (cm) (without support) (30-50 days after 1st flower) 170APG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYMinimum seedhead heightMinimum flower (foliage) height (cm) (30-50 days after 1st flower) 150APG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYMaximum seeedhead heightMaximum flower (foliage) height (cm) (30-50 days after 1st flower) 230APG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYLeafiness rating - principalEstimate of leaf vs non-leaf material compared to principal (30-50 days after 1st flower)1 - Less than comparatorAPG QLD Regen 2016-17 Panicum Megathyrsus  
PHENOLOGYLeafiness rating - subsidiaryEstimate of leaf vs non-leaf material compared to subsidiary (30-50 days after 1str flower)1 - Less than comparatorAPG QLD Regen 2016-17 Panicum Megathyrsus  
PRODUCTIONFlowering and seed setEstimate of seed production capacity5 - Dense flowering, ready seed set (few empty florets)APG QLD Regen 2016-17 Panicum Megathyrsus  


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