Full TGIF Record # 79026
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):MacKendrick, Carolyn A.; Martin, Ralph C.; Fredeen, Alan H.
Author Affiliation:Nova Scotia Agricultural College, Truro, Nova Scotia, Canada
Title:Comparing biomass removal among timothy and Kentucky bluegrass cultivars in an intensively managed dairy pasture
Section:Abstracts of technical papers
Other records with the "Abstracts of technical papers" Section
Source:Canadian Journal of Plant Science. Vol. 82, No. 1, January 2002, p. 136.
Publishing Information:Ottawa: Agricultural Institute of Canada
# of Pages:1
Keywords:TIC Keywords: Biomass determination; Cultivar evaluation; Grazing; Pastures; Phleum pratense; Poa pratensis
Abstract/Contents:" The development of suitably adapted cultivars of pasture species is of importance to optimize animal performance. Traditionally, perennial, cool-season grasses have been bred and evaluated under mechanical harvest regimes such as hay production. Data collected under these circumstances may not accurately reflect cultivar performance under grazing. In the fall of 1999, four cultivars each of timothy (Phleum pratense L.) and Kentucky bluegrass (Poa pratensis L.) were seeded in a split-split plot design with four blocks at the NSAC Pasture Research Centre, in order that the biomass removed by a grazing dairy herd could be estimated. In each of the four blocks, cultivars were growing in pure stands and in grass-white clover mixtures. Stands were subjected to one of two management strategies, "grazed" (grazed over the entire five defoliation events) and "cut" (taking a cut for stored feed at the time of the first defoliation, and grazing the reqrowth at the subsequent defoliations). Preliminary analysis suggests that while there is no significant difference (P= 0.05) among bluegrass cultivars, more biomass was removed in plots seeded with Farol and Promesse timothy cultivars than those with Kahu and Comtal. Pure grazed lots had the least biomass removal, regardless of cultivar or species, while cut bluegrass plots had greater biomass removal. Specific to bluegrass cultivars and management, greater biomass was removed from cut Slezanka, cut Huntsville, and cut Knutt, while with timothy, the greatest biomass removal was seen with cut Promesse."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
MacKendrick, C. A., R. C. Martin, and A. H. Fredeen. 2002. Comparing biomass removal among timothy and Kentucky bluegrass cultivars in an intensively managed dairy pasture. Can. J. Plant Sci. 82(1):p. 136.
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