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REGISTRATION OF CULTIVARS

Registration of ‘Sundevil II’ Bermudagrass

J.R. Simplot Co., Jacklin Seed division, W. 5300 Riverbend Ave., Post Falls, ID 83854

* Corresponding author (ssamudio{at}simplot.com)

‘Sundevil II’ bermudagrass [Cynodon dactylon (L.) Pers] (Reg. no. CV-41, PI 618587) is a seed-propagated, turf-type cultivar developed and released by J.R. Simplot Co., Jacklin Seed Division, Post Falls, ID, in November 1998. Sundevil II was tested as J-1223 and 92-1223. First Certified seed was produced in August 1998.

Sundevil II was developed from the maternal progenies of five clones selected from old turf areas at Walla Walla, WA, in 1987; Atoka, OK, in 1988; and Jackson, TN, in 1989. The clones and their progeny were evaluated in spaced-plant nurseries for turf and seed yield attributes. Two to three cycles of recurrent selection were used, with the open-pollinated progeny of superior selections being used to plant the next cycle. In June 1992, five selections were made from a Dome Valley, AZ, nursery based on uniformity, dark color, medium-high shoot density, medium-fine leaf texture, high seedhead density, and low plant height. The five clones were planted in rows in an isolated polycross block in Dome Valley that was encouraged to spread during 1992. The polycross block was harvested in January and August 1993 and August 1994. Bulked seed was used for turf evaluation and to plant an isolation block.

In October 1993, a spaced-plant block of 1142 plants was planted at Dome Valley, AZ. An additional 1000 plants from the same source were added in May 1994. By October 1994, over 40% of the plants had been rogued from the breeder block. Off-type plants removed were (i) low-growing, low-density plants that had predominately thick, whitish stolons with a reduced number of leaves of very fine texture and producing few seedheads, (ii) very aggressive, medium-green, high-density plants that were approximately 45 cm tall (freestanding at maturity), and (iii) coarse-textured, lighter-green or excessively blue plants with greenish seedheads or minimal seedhead initiation. An additional 5 to 10% of the plants that matured earlier or later than the majority of the field or plants that showed reduced seedhead initiation were removed in the spring. Seed produced from this field was used to plant a 2-ha breeder field near Brawley, CA, in September 1995.

Reproductive fertility of Sundevil II has been sufficient for commercial seed production. Seed yields approaching ‘Arizona common’ can be expected, given appropriate field management. The average seedhead contains 4 to 5 racemes but is smaller in size than those of Jackpot (Samudio and Brede, 1997). Sundevil II seedheads have a purplish cast at maturity. Arizona common begins heading several weeks earlier than Sundevil II. The heading rate of Sundevil II was estimated at 50% on 12 April and over 90% on 18 April 1995 near Dome Valley, AZ. Sundevil II is about 1 wk earlier in initial flowering than Jackpot. Under nonmowed conditions, Sundevil II is lower growing than Jackpot.

Sundevil II was entered in the 1997 bermudagrass National Turfgrass Evaluation Program Trials (Morris, 2000). Sundevil II is superior to Arizona common in turf quality, leaf texture, and spring, summer, and winter density.

Sundevil II is an attractive, uniform, moderately low-growing, seed-propagated cultivar that has a medium-dark green color, medium-fine leaf texture, and high tiller density. It should perform well when used for lawns, parks, roadsides, cemeteries, golf courses (not putting greens), and other sports turfs.

J.R. Simplot Co., Jacklin Seed Division, Post Falls, ID maintains Breeder seed of Sundevil II. Seed production is limited to three generations of increase beyond Breeder seed: one each of Foundation, Registered, and Certified. Application for U.S. Plant Variety Protection was not made.

NOTES

Registration by CSSA.

Accepted for publication September 30, 2001.

REFERENCES

• Morris, K.N. 2000. National bermudagrass test-1997. Progress Report 1999. NTEP No. 00-4. USDA-ARS, Beltsville, MD.
• Samudio, S.H., and A.D. Brede. 1997. Registration of ‘Jackpot’ bermudagrass. Crop Sci. 37:1380.[Free Full Text]

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Samudio, S.H. Articles by Brede, A. D. Search for Related Content PubMed Articles by Samudio, S.H. Articles by Brede, A. D. Agricola Articles by Samudio, S.H. Articles by Brede, A. D.