Full TGIF Record # 19659
Item 1 of 1
Publication Type:
Author(s):Powell, A. J.; Tapp, Linda
Title:Perennial ryegrass evaluations
Source:Kentucky Turfgrass Research. 1983, p. 18-22.
Publishing Information:Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service
Keywords:TIC Keywords: Lolium perenne; Poa pratensis; Cultivar evaluation; Expervars; National Perennial Ryegrass Test-1982; Brown patch; Visual evaluation; Color; Seeding rate; Seed mixtures; Competitive ability
Abstract/Contents:1983 update of 3 tests to evaluate the long-term quality of improved perennial ryegrass cultivars and evaluate their competiveness with Kentucky bluegrass in a Kentucky location. Test 1 (established fall 1976) includes three replications of 13 varieties, seeded at four pounds/1,000 sq ft. Three pounds of Nitrogen/1,000 sq ft., are applied annually during fall and early winter. Since 1977, mowing height has been 1 inch. A table provides 1977-83 annual and 7-year average visual quality ratings (1 to 9;9=best quality) with significant differences indicated (SD) for 1983. 7-year average ratings ranged from 3.8(NK 100) to 6.1(Derby). Test 2 evaluates seeding rates of Manhattan perennial ryegrass (1.2. or 4 #/1,000 sq ft.) and Manhattan: Adelphi Kentucky bluegrass mixtures at 10:90, 20:80, or 50:50 (% by weight, all at 2#/1,000 sq. ft.). A table provides 1977-83 annual and 7-year average visual quality ratings with SD indicated for 1983. Ratings were not significantly different among treatments in 1983 but 7-year average ratings are slightly higher in mixtures than in Manhattan alone. Test 3, established 9/82, and part of the National Perennial Ryegrass Test, includes three replications of 48 named and experimental cultivars. The seeding rate was 5.5 pounds/1,000 sq. ft. Three pounds of Nitrogen/1,000 sq. ft. was applied during October and December. Mowing height was 1.5 inches. A table provides 1983 April-November monthly and yearly average visual quality ratings, % brown patch (rated on 7/22/83) and color ratings (average of 10/18/83 and 11/22/83 ratings; 1-3;3=darkest green). SD are indicated for 1983 average quality and color ratings. Prelude had overall best performance and Linn had worst.
See others in series: R-19159, R-19293, R-9484, R-19406, R-8267, R-8150, R-19764, R-19855
Geographic Terms:Kentucky
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Powell, A. J., and L. Tapp. 1983. Perennial ryegrass evaluations. KY. Turfgrass Res. p. 18-22.
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