Details for: PI 682663, Hemarthria altissima (Poir.) Stapf & C. E. Hubb., Kenhy


Summary Data
Taxonomy:
Hemarthria altissima (Poir.) Stapf & C. E. Hubb.
Top Name:
Kenhy
Origin:
Developed – Florida, United States
Received by NPGS:
08 Aug 2017
Life Form:
Perennial
Life Cycle:
Perennial
Availability
This accession is not available. Contact site for status.
 
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Core Passport Data
Taxonomy:
Hemarthria altissima (Poir.) Stapf & C. E. Hubb.
Top Name:
Kenhy
Origin:
Developed – Florida, United States
Received by NPGS:
08 Aug 2017
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Developed

Florida, United States

Developer(s):
Accession Names and Identifiers
Kenhy
Type: Donor identifier

Hybrid 4F
Type: Other or unclassified name

Narrative
Kenhy and Gibtuck hybrid limpograss [Hemarthria altissima (Poir.) Stapf & C.E. Hubbard] cultivars were produced by the University of Florida Agronomy Department, a unit of the Florida Agricultural Experiment Station, and released in 2014. These two hybrids were selected from 51 hybrid seedlings produced by greenhouse hand crosses of ‘Floralta’ X “Bigalta’. Floralta is estimated to constitute over 95% of the limpograss grown in Florida, raising concerns about genetic vulnerability. Bigalta, although less persistent than Floralta, had been shown to have slightly greater in vitro organic matter digestion. Evaluations of these hybrids were conducted at the Range Cattle Research and Education Center (REC), Ona, FL, at two locations near Gainesville, FL, and at the North Florida REC, Marianna, FL. Evaluations included greenhouse pot studies, small plot clipping experiments, two different mob stocking grazing experiments, and an experiment to evaluate herbage accumulation and nutritive value under stockpiling management. These two new hybrids were selected for superior herbage accumulation, persistence under grazing defoliation, improved nutritive value compared with Floralta, and utility as a stockpiled forage. Vegetative planting material was first distributed in summer 2014 to a group of growers selected by the Florida Cattlemen’s Research Committee, and further public distribution will be coordinated by this committee.
Hemarthria altissima (Poir.) Stapf & C. E. Hubb.
Genus:
Hemarthria
Family:
Poaceae (alt. Gramineae)
Subfamily:
Panicoideae
Tribe:
Andropogoneae
Subtribe:
Ratzeburgiinae
Nomen number:

18849
Place of publication:

Bull. Misc. Inform. Kew 1934:109. 1934
Verified:
04/18/2001 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Rottboellia altissima Poir.

Homotypic Synonym(s)
Manisuris altissima (Poir.) Hitchc.

Common names
LanguageNameAlternate namenoteseqCitation
EnglishBatavian quick grass  1Van Den Heuvel, E. & J. F. Veldkamp. 2000. Revision of Hemarthria (Gramineae-Andropogoneae-Rottboelliinae). Blumea 45:452.
Englishhalt grass  1Rehm, S. 1994. Multilingual dictionary of agronomic plants
Englishlimpo grass  1Rehm, S. 1994. Multilingual dictionary of agronomic plants
Englishred quick  1Ellis, R. P. 1997. pers. comm. Note: re. English common names
Englishred swamp grass  1Gibbs-Russell, G. E. et al. 1990. Grasses of southern Africa. Mem. Bot. Surv. S. Africa vol. 58
Englishsnake grass  1Van Den Heuvel, E. & J. F. Veldkamp. 2000. Revision of Hemarthria (Gramineae-Andropogoneae-Rottboelliinae). Blumea 45:452.
Englishswamp couch  1Van Den Heuvel, E. & J. F. Veldkamp. 2000. Revision of Hemarthria (Gramineae-Andropogoneae-Rottboelliinae). Blumea 45:452.
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Pedigree
Description:
Crosses were made between Floralta and Bigalta by approach pollination (enclosing two flowering racemes in a glassine pollination bag and shaking daily to promote cross pollination) in a greenhouse of the Agronomy Department, University of Florida in Gainesville, FL . From these crosses, 51 hybrid plants were generated (39 having Bigalta as the female parent and 12 having Floralta as the female parent). Each hybrid was vegetatively propagated and planted in field plots for further evaluation.
Intellectual Property Rights
Journal of Plant Registration. CV-283, Other Forage Crops/Grass. Issued: 01 Jan 2018.