Full TGIF Record # 19764
Item 1 of 1
Publication Type:
Author(s):Powell, A. J. Jr.
Title:Perennial ryegrass evaluations
Source:Kentucky Turfgrass Research. 1982, p. 13-15.
Publishing Information:Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service
Keywords:TIC Keywords: Lolium perenne; Visual evaluation; Cultivar evaluation; Poa pratensis; National Perennial ryegrass test-1982; Seeding rate; Seed mixtures; Botanical surveys; Competitive ability; Encroachment; Expervars
Abstract/Contents:1982 update of 2 tests at a Kentucky location to evaluate the long-term quality of improved perennial ryegrass cultivars and evaluate their competitiveness with Kentucky bluegrass. Test 1 includes 13 varieties seeded at four lbs/M, with three pounds N/M/YR applied annually during fall and early winter. Since 1977, mowing height has been 1 inch. A table provides % Kentucky bluegrass (visually estimated in 3/82) and 1977-82 annual and 6-year average visual quality ratings (1 to 9;9=best quality) with significant differences (SD) indicated for 1982. Kentucky bluegrass was 0% in Derby, Yorktown II, and Manhattan; was less than 5% in Diplomat, Yorktown, Loretta, Citation, Pennfire, and Common, and was 16.7, 18.3, 30.0, and 61.7% in NK-100 , Eton, NK-200, and Ensporta, respectively. 6-year average ratings ranged from 3.8 (NK-100) to 6.3 (Derby). Test 2 evaluates Manhattan perennial ryegrass seeded alone and with Adelphi Kentucky bluegrass. Treatments are: 1) Manhattan alone at 1, 2, or 4 #/1000 sq ft and 2) Manhattan:Adelphi (% by weight) at 10:90, 20:80, or 50:50 (all at 2 #/1000 sq ft). A table provides % Kentucky bluegrass (rated in 3/82) with SD indicated and 1977-82 annual and 6-year average visual quality ratings with SD indicated for 1982. Kentucky bluegrass was 2% or less in Manhattan alone and was 10, 28, and 28% for 50:50, 20:80, 10:90, respectively. Visual ratings were not significantly different among treatments in 1982 but 6-year average ratings were about 1 rating point greater in the mixtures than in Manhattan alone. Test 3, established 9/82, is part of the National Perennial Ryegrass Test, and includes 48 named and experimental cultivars. Ratings will be made in 1983.
See others in series: R-19159, R-19293, R-9484, R-19406, R-8267, R-8150, R-19659, R-19855
Geographic Terms:Kentucky
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Powell, A. J. Jr. 1982. Perennial ryegrass evaluations. KY. Turfgrass Res. p. 13-15.
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MSU catalog number: SB 433 .A1 K4
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