Details for: PI 652947, Zoysia japonica Steud., 'ULTIMATE'


Summary Data
Taxonomy:
Zoysia japonica Steud.
Cultivar:
'ULTIMATE'
Origin:
Developed – Georgia, United States
Received by NPGS:
29 Feb 2008
Improvement Status:
Cultivar
Life Form:
Perennial
Life Cycle:
Perennial
Availability
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Core Passport Data
Taxonomy:
Zoysia japonica Steud.
Cultivar:
'ULTIMATE'
Origin:
Developed – Georgia, United States
Received by NPGS:
29 Feb 2008
Improvement Status:
Cultivar
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Accession Names and Identifiers
'ULTIMATE'
Type: Cultivar name

BA-189
Type: Other or unclassified name

Narrative
The purpose of this breeding program was to identify and develop an alternative to the longstanding standard cultivar Meyer , and to enlarge the diversity of clonally propagated warm season perennial turf cultivars grown in Florida s specialty zoysiagrass market. Ultimate was developed as a regional variety for the subtropical and tropical regions of Florida. It was originally tested as breeding line BA-189, and Plant Patent Application No. 11/174,308 (Jul. 22, 2005) was submitted under said designation. Ultimate was selected for four agronomic and horticultural traits, including: 1) darker leaf color; 2) a more refined leaf structure; 3) a faster rate of crop establishment; and 4) reduced seed head production. Leaf color was determined using the Munsell Color Chart. Ultimate produced a fresh leaf color that was a darker green than the standard Meyer , and ranged from 5GY (4/6 5/6) to 7.5GY (4/6 - 5/6). It also produced leaves that averaged 23% shorter and 22% narrower than the standard variety Meyer . Agronomically, Ultimate produced 57% fewer seed heads on an annual basis than the standard variety Meyer , and in comparison to Meyer , Ultimate had a shorter peak-duration of seed head production, which was offset by about 60 days from the standard. In southern Florida, Ultimate exhibited a faster rate of crop establishment than Meyer , and typically covered the plots a month earlier than the standard cultivar. In comparison to the standard variety, Ultimate exhibited a higher level of host resistance to the tropical sod webworm (Herpetogramma phaeopteralis Guenee) (Lepidoptera:Pyralidae).
Zoysia japonica Steud.
Genus:
Zoysia
Family:
Poaceae (alt. Gramineae)
Subfamily:
Chloridoideae
Tribe:
Zoysieae
Subtribe:
Zoysiinae
Nomen number:

42306
Place of publication:

Syn. pl. glumac. 1:414. 1854
Verified:
02/10/2006 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Homotypic Synonym(s)
Osterdamia japonica (Steud.) Hitchc.

Common names
LanguageNameAlternate namenoteseqCitation
EnglishJapanese lawn grass  1Rehm, S. 1994. Multilingual dictionary of agronomic plants
EnglishKorean grass  1Liberty Hyde Bailey Hortorium. 1976. Hortus third. A concise dictionary of plants cultivated in the United States and Canada
EnglishKorean lawn grass  11961. Webster's third new international dictionary.
Englishzoysia  1Rehm, S. 1994. Multilingual dictionary of agronomic plants
Chinesejie lü cao结缕草 2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Italianzoisia del Giappone  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Japanese Rōmajishiba  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Transcribed Koreanjandi  2Lee, Y. N. 1997. Flora of Korea.
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Citations
  • Scully, B. T., R. T. Nagata, R. H. Cherry, G. S. Nuessly, L. E. Trenholm, K. E. Kenworthy, B. M. Schwartz, & J. B. Unruh. 2012. Registration of ‘Ultimate’ Zoysiagrass. J. Pl. Registr. 6(1):071. DOI: 10.3198/jpr2011.04.0196crc. Number of accessions cited: 1
Pedigree
Description:
This cultivar originated and was initially selected as a distinct vegetative inclusion in Meyer Zoysia japonica (Stued.). Ultimate was first identified and selected as BA-189 in Palm Beach County, Florida. It was an individual plant selected from an array of thirteen accessions chosen to represent the variability of off-types growing in an original planting of Ultimate .
Intellectual Property Rights
Journal of Plant Registration. CV-260, OTHER GRASSES. Issued: 01 Jan 2012.
  • Scully, B. T., R. T. Nagata, R. H. Cherry, G. S. Nuessly, L. E. Trenholm, K. E. Kenworthy, B. M. Schwartz, & J. B. Unruh. 2012. Registration of ‘Ultimate’ Zoysiagrass. J. Pl. Registr. 6(1):071. DOI: 10.3198/jpr2011.04.0196crc.
U.S. Plant patent. Plant Patent 23,716P3, Issued: 02 Jul 2013.