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REGISTRATIONS OF CULTIVARS

Registration of ‘Greenwich’ Velvet Bentgrass

^a Pure Seed Testing, Inc., P.O. Box 449, Hubbard, OR 97032
^b Pure Seed Testing, Inc., P.O. Box 176, Rolesville, NC 27571
^c Plant Biology and Pathology Dep., NJAES, Cook College, Rutgers Univ., 59 Dudley Road, New Brunswick, NJ 08901-8520

^* Corresponding author (mlkfraser{at}aol.com)

‘Greenwich’ velvet bentgrass (Agrostis canina L.) (Reg. no. CV-9, PI 630925) was released by Pure Seed Testing, Inc., Hubbard, OR in 2000. Pure Seed Testing, Inc. developed Greenwich using germplasm obtained from the New Jersey Agricultural Experiment Station of Rutgers University. The first Certified seed was produced in 2001. Greenwich was tested under the experimental designation PST-EVM.

Greenwich traces its origin to maternal progenies of 35 velvet bentgrass plants. Twenty-two of these plants trace their origin to plants selected from old turfs at Lake Success Country Club, Long Island, NY. One parent traces its origin to a plant collected from Pine Hollow Country Club, Long Island. The other 12 maternal parents trace to selections from ‘Emanuel Francis’ velvet bentgrass in a turf trial seeded in October 1985 at North Brunswick, NJ, that was maintained at a 6-mm mowing height. The trial contained Emanuel Francis velvet bentgrass and several creeping bentgrasses (Agrostis palustris Huds.). After 5 yr, plots of Emanuel Francis velvet bentgrass had mostly disappeared. Mowing height was then lowered to 4 mm and velvet bentgrass subsequently began to dominate the original plots. An extremely small percentage of the original seedlings were able to thrive under the conditions of this trial and produced patches averaging 15 cm in diameter. The most attractive of these velvet bentgrasses were selected during the summer of 1996 and transferred to a spaced-plant nursery at the Rutgers Plant Science Research Farm at Adelphia, NJ, along with selections from Lake Success Country Club and National Golf Links Country Club, Bridgehampton, NY.

In June 1997, 27 attractive, low-growing and disease-free velvet bentgrass plants were moved before anthesis to an isolated polycross, designated EVB, at Adelphia. Twenty-three of these plants were from Lake Success Country Club, two were from National Golf Links Country Club, and two were from Emanuel Francis. These plants were allowed to interpollinate during the summer of 1997, and seed was subsequently harvested from each plant. Seed harvested from the EVB polycross, along with new selections from Pine Hollow Country Club and the Emanuel Francis plots, were used to establish an isolated 2400-plant nursery at Adelphia during the fall of 1997.

In June 1998, the most attractive medium-maturing, medium-dark green, low-growing, fine-textured plants were moved to an isolated polycross, designated EVM, at Adelphia. Ninety-nine plants were allowed to interpollinate during the summer of 1998, and seed was subsequently harvested from 35 plants. The origins of the plants in the EVM polycross were as follows: 29 traced maternally to Emanuel Francis, of which 12 were harvested; 61 traced maternally to Lake Success Country Club, of which 22 were harvested; 8 traced maternally to Pine Hollow Country Club, of which one was harvested; and one traced maternally to National Golf Links Country Club, but was not harvested.

Seed harvested from the 35 EVM parents was sent to Pure Seed Testing, Inc., near Hubbard, during the summer of 1998. Seedlings were transplanted to an isolated 4450-plant nursery, near Hubbard, during the fall of 1998. Plants with wide leaves, light-green color, prostrate growth habits, disease symptoms, or a low number of reproductive tillers were removed from the population during the spring of 1999 before anthesis. Remaining plants interpollinated, and seed was subsequently harvested from 1185 plants as the first Breeder seed of Greenwich during the summer of 1999.

Greenwich is a fine-textured, low-growing, medium-green cultivar developed for turf uses. It has shown good quality in turf trials maintained at mowing heights from 3 to 13 mm in New Jersey, North Carolina, and Oregon (Murphy et al., 2000; Plumley et al., 2001; Bonos et al., 2002; Pure Seed Testing, Inc., 2002). Greenwich has shown good resistance to dollar spot (caused by Sclerotinia homoeocarpa F.T. Bennett) and brown patch (caused by Rhizoctonia solani Kühn). Greenwich has good heat tolerance and is recommended for golf course greens, tees, and fairways in temperate climates.

Seed production of Greenwich is limited to three generations of increase from Breeder seed: one each of Foundation, Registered, and Certified. Pure Seed Testing, Inc. maintains Breeder seed in Oregon and has applied for U.S. Plant Variety Protection (PVP application no. 200200094).

NOTES

Registration by CSSA.

Accepted for publication June 30, 2003.

REFERENCES

• Bonos, S.A., K.A. Plumley, W.A. Meyer, J.A. Murphy, B.B. Clarke, W.K. Dickson, J.B. Clark, and D.A. Smith. 2002. Performance of bentgrass cultivars and selections in New Jersey turf trials. p. 1–21. In A.B. Gould (ed.) 2001 Rutgers Turfgrass Proc. Vol. 33. Rutgers Center for Turfgrass Science, New Brunswick, NJ.
• Murphy, J.A., W.A. Meyer, K.A. Plumley, B.B. Clarke, S.A. Bonos, W.K. Dickson, J.B. Clark, D.A. Smith, and T.J. Lawson. 2000. Performance of bentgrass cultivars and selections in New Jersey turf trials. p. 51–67. In A.B. Gould (ed.) 1999 Rutgers Turfgrass Proc. Vol. 31. Rutgers Center for Turfgrass Science, New Brunswick, NJ.
• Plumley, K.A., W.A. Meyer, J.A. Murphy, B.B. Clarke, S.A. Bonos, W.K. Dickson, J.B. Clark, and D.A. Smith. 2001. Performance of bentgrass cultivars and selections in New Jersey turf trials. p. 1–21. In A.B. Gould (ed.) 2000 Rutgers Turfgrass Proc. Vol. 32. Rutgers Center for Turfgrass Science, New Brunswick, NJ.
• Pure Seed Testing, Inc. 2002. Field day 20, Hubbard, OR. 20 June 2002. Turf-Seed, Inc. and Pure Seed Testing, Inc., Hubbard, OR.

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 Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Rose-Fricker, C.A. Articles by Bonos, S.A. Search for Related Content PubMed Articles by Rose-Fricker, C.A. Articles by Bonos, S.A. Agricola Articles by Rose-Fricker, C.A. Articles by Bonos, S.A.