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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1990_vol44.pdf#page=99
Last checked: 07/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Armstrong, Paula Dalgaard |
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| Title: | The effects of six grass species on black spruce seedling growth |
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| Meeting Info.: | Held: January 3,4,5, 1990; Boston MA |
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| Source: | Proceedings of the 44th Annual Meeting of the Northeastern Weed Science Society. Vol. 44, 1990, p. 99. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Tree root competition; Agrostis stolonifera; Agrostis scabra; Bromus inermis; Cinna latifolia; Calamagrostis canadensis; Bromus ciliatus
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| Abstract/Contents: | "This pot experiment compared the effects of six boreal grass species on growth of paperpot over-winter nursery-produced black spruce (Picea mariana (Mill.) BSP) seedlings. I was particularly interested in diameter increment effects since many grasses are held to suppress spruce seedlings through an inadequate diameter increment making them vulnerable to being bowed down by dead grass tops over fall and winter. Grass species used were Agrostis stolonifera, Agrostis scabra, Bromus ciliatus, Bromus inermis, Cinna latifolia, and Calamagrostis canadensis. Twelve replicates of each of these were created, as well as 12 controls (no grass). The grass seedings had been started from seed that I gathered the previous fall in Bragg Township, Cochrane District, northern Ontario. They were transplanted as 5 tiny seedlings each to 5" plastic pots in sandy loam soil several weeks before an individual black spruce seedling (from a tray shipped frozen from a northern Ontario nursery) was added to the center of each pot. Paperpot wrappers were removed. Root collar diameter and height of each spruce seeding was recorded before planting. The experiment was arranged in 12 blocks. It was then run with augmented light in a greenhouse at the University of Toronto from February 17, 1986 to May 20, 1986 (3 months & 3 days), by which time grasses has set seed. Spruce root collar diameters, heights, and dry weights were then measured, as well as above and below-ground weights of the air-dried grasses. Species of grass significantly affected both height increment and diameter increment of spruce seedlings. Original spruce height-diameter ratio affected diameter increase of spruce seedlings grown with one grass species (alpha = .01), but not with the others. Dry weight of grasses did not appear to affect eventual dry weight of spruce seedlings. |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Armstrong, P. D. 1990. The effects of six grass species on black spruce seedling growth. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 44:p. 99. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1990_vol44.pdf#page=99
Last checked: 07/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 |
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Digitally in TIC by file name: newss1990 |
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