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Cutting Height Effects on the Competitive Ability of Annual Bluegrass ( Poa Annua L) 1
Author(s) -
Bogart J. E.,
Beard J. B.
Publication year - 1973
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1973.00021962006500030050x
Subject(s) - tiller (botany) , poa annua , shoot , agronomy , dry weight , competition (biology) , mathematics , biology , poaceae , ecology
Annual bluegrass ( Poa annua L.) plants were grown in a mature Merion Kentucky bluegrass sod and in monostands to determine the optimum cutting height for annual bluegrass in terms of shoot competition. Shoot dry weight and tiller number measurements were made on annual bluegrass plants maintained at cutting heights of 1.25, 2.54, 3.75, 5.08, and 6.25 cm. Cutting height significantly influenced the shoot dry weight and tiller number of annual bluegrass with 2.54 cm being the optimum cutting height. In addition, mowing annual bluegrass at a height of 2.54 cm significantly increased the shoot density over both higher and lower cutting heights when grown in a monostand. The optimum cutting height for annual bluegrass in terms of shoot competition was 2.54 cm.