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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 652947 | 'ULTIMATE' | Zoysia japonica Steud. | Georgia, United States | S9 | | Not Available | 2008 | DEVELOPED | | | | | | Cultivar | 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). | 1751274 | PI 652947 |