Full TGIF Record # 37797
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DOI:10.4141/cjps96-051
Web URL(s):http://pubs.aic.ca/doi/pdfplus/10.4141/cjps96-051
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Publication Type:
i
Refereed
Author(s):Fairey, N. A.; Lefkovitch, L. P.
Author Affiliation:Northern Agriculture Research Centre, Agriculture and Agri-Food Canada, P. O. Box 29, Beaverlodge, Alberta, Canada T0H 0C0; Headquarters (Western Region), Agriculture and Agri-Food Canada, Research Branch, Central Experimental Farm, Ottawa, Ontario, Canada K1A 0C6.
Title:Crop density and seed production of creeping red fescue (Festuca rubra. L. var. rubra). 1. Yield and plant development
Source:Canadian Journal of Plant Science. Vol. 76, No. 2, April/Avril 1996, p. 291-298.
Publishing Information:Ottawa: Agricultural Institute of Canada
# of Pages:8
Keywords:TIC Keywords: Growth habit; Seed yield; Plant density; Growth rate; Seed production; Festuca rubra subsp. rubra; Harvesting
Abstract/Contents:"The natural growth habit of creeping red fescue (Festuca rubra L. var. rubra) involves a steady proliferation of tillers, which eventually become too dense to form seedheads. A field study was conducted to evaluate whether seed yield of fescue can be optimized for one, two or three consecutive crops by manipulating the initial population density and arrangement of plants. Individual seedling plants were transplanted at seven densities (1.6, 3.1, 6.3, 12.5, 50 and 100 plants mā»Ā²) and three row spacings (20, 40 and 80 cm), and characteristics of seed production were determined for 3 yr (1991-1993). Heading commenced at dates differing by 16 d in the 3 yr and was delayed by up to 7 d as density increased. Seed maturity occurred in a 7-d period in each year (15-22 July). For a single harvest, an initial density of 12-100 plants mā»Ā² on a row spacing of 20 cm or 12-50 plants mā»Ā² on a row spacing of 40 cm is required to optimize yield and produce about 600 kg haā»Ā¹ of clean seed. For two consecutive harvests, an initial population density of 6-25 plants mā»Ā² on a row spacing of 20 cm or 6-50 plants mā»Ā² on a row spacing of 40 cm is required to optimize yield and produce a total of about 800 kg haā»Ā¹ of clean seed. For producing for either 1 or 2 yr, a density of 12-25 plants mā»Ā² on rows no wider than 40 cm is required to optimize seed yield in each year. The probability of producing a third seed crop decreases markedly as the intial plant density increases and as the row spacing decreases. It is probably uneconomic to harvest more than two consecutive seed crops with current management practices."
Language:English
References:17
Note:Abstracted in French and English
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fairey, N. A., and L. P. Lefkovitch. 1996. Crop density and seed production of creeping red fescue (Festuca rubra. L. var. rubra). 1. Yield and plant development. Can. J. Plant Sci. 76(2):p. 291-298.
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DOI: 10.4141/cjps96-051
Web URL(s):
http://pubs.aic.ca/doi/pdfplus/10.4141/cjps96-051
    Last checked: 10/01/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: SB 1 .C3
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