Thursday, 10 November 2005 - 10:15 AM
313-10

Dormant Seeding of Bermudagrass Cultivars.

Bradly R. Shaver, Mike Richardson, Douglas Karcher, Brad Murphy, John Boyd, and John McCalla. University of Arkansas, 316 Plant Sciences Building, Fayetteville, AR 72701

Bermudagrass (Cynodon dactylon) is one of the widely used turfgrasses in the southern regions of the United States and is also widely used in other tropical and subtropical regions around the world. The objective of this study was to determine the effects of dormant seeding on the germination and establishment of seeded bermudagrass. A field study was used to compare dormant seeding to traditional seeding on the establishment of two seeded bermudagrass cultivars. Plots were seeded with either ‘Princess-77' or ‘Riviera' bermudagrass at two different seeding rates, 4.88 g pure-live seed (PLS) m-2 and 9.76 g PLS m-2. The two cultivars and seeding rates were seeded monthly from February to May during the 2004 and 2005 growing seasons, with February and March considered dormant seeding dates. Data collected included date of germination, seedling stand counts, and percent turfgrass establishment until 100% cover was reached. Dormant seeding resulted in earlier germination than traditional seeding dates, with germination occurring when soil temperatures reached 18 ºC. Earlier germination in the February and March treatments also contributed to faster establishment rates compared to April and May seeding dates, with dormant seeded plots achieving 100% turfgrass cover as fast or faster than April and May seeding dates. Results from these trials suggest that dormant seeding may be a viable means of establishing seeded bermudagrass.

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