Responses of several densely seeded turfgrasses to variable close cutting in the greenhouse1
- F. B. Ledeboer
Six cool-season turfgrass cultivars, ‘Pennfine’ and ‘Manhattan’ perennial ryegrass (Lolium perenne L.), Italian ryegrass (Lolium multiflorum L.), ‘Pennlawn’ creeping red fescue (Festuca rubra L.), ‘Jamestown’ chewings fescue (Festuca rubra var. commutata Gaud.), and ‘Seaside’ creeping bentgrass (Agrostis palustris Huds.) were evaluated under two cutting heights (0.6 and 0.9 cm) and three preplant fertilizer treatments (0-14-14, 14-0-44, and check). The experiment was conducted in an unheated greenhouse with all vents open to simulate overseeded bermudagreen conditions. Turf density, quality, and color were related to cultivar and cutting height. These parameters were reduced by 0.6 cm cutting. Ryegrasses produced inferior turf to fescues and bentgrass. Plant count, extra tiller production, and plant mortality per unit area were responsible for overall turf quality. Only fescues, but Jamestown in particular, had low plant mortality and sufficiently high tiller production to maintain high turf quality under both cutting levels. Seaside bentgrass attained good density but remained in the soft seedling stage throughout the study. Seed bed application of 14-0-44 increased vigor and color of grasses over 0-14-14 and check treatments but increased seedling mortality. Other parameters were affected little and obscured by subsequent uniform nitrogen treatments. Additional index words: Winter overseeding, Quality comparison, Low cutting.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1974. . Copyright 1974 by the American Society of Agronomy, Inc. and the Crop Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA