Variations in the Growth and Development of Annual Bluegrass Populations Selected from Seven Different Sports Turf Areas1
- W.A. Adams and
- P. J. Bryan
Populations of annual bluegrass (Poa annua L.), selected from seven turfgrass sites, and ‘Highland’ colonial bentgrass (Agrostis tenuis Sibth.) were compared under three levels of N and at three heights of cut in a glasshouse experiment. The parameters of growth and development examined were: yield of clippings, tiller production, leaf width, seedhead production, root length, and root weight. All selections showed general variations in performance attributable to N level and cutting height. The differential performance among selections varied with treatment.
The annual bluegrass populations ranged between an erect, prolific seeding type and prostrate, high tillering, nodal rooting types which produced few seedheads. The semi-perennial/perennial types varied in vigor and leaf fineness. The differences among the selections were loosely related to the culture and use of the sports turf from which they were isolated, reflecting selection within a range of genotypes. It is suggested that annual bluegrass types possessing characteristics desirable for sports turfs are present in long established turf and selections from such sites could be made for use in a breeding program.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1980. . Copyright © 1980 by the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, and International Turfgrass Society, 5585 Guilford Rd., Madison, WI 53711 USA