Full TGIF Record # 39167
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Web URL(s):http://www.nrcresearchpress.com/doi/pdf/10.1139/b96-188
    Last checked: 09/29/2015
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Publication Type:
i
Refereed
Author(s):Collet, Catherine; Frochot, Henri; Guehl, Jean-Marc
Author Affiliation:Collet and Frochot - Institut national de la recherche agronomique (INRA), Centre de Nancy, Equipe Croissance et Production, France; Guehl - Institut national de la recherche agronomique (INRA), Centre de Nancy, Equipe Bioclimatologie et Ecophysiologie Forestière, France
Title:Growth dynamics and water uptake of two forest grasses differing in their growth strategy and potentially competing with forest seedlings
Source:Canadian Journal of Botany. Vol. 74, No. 10, October 1996, p. 1555-1561.
Publishing Information:Vancouver, British Columbia: The National Research Council of Canada.
# of Pages:7
Related Web URL:http://www.nrcresearchpress.com/doi/abs/10.1139/b96-188
    Last checked: 09/29/2015
    Notes: English abstract only
Keywords:TIC Keywords: Agrostis stolonifera; Deschampsia caespitosa; Root growth; Evapotranspiration; Water uptake; Soil water potential; Drought resistance; Tillering rate; Desiccation; Spring green-up
Abstract/Contents:"Growth characteristics and water uptake were compared on two forest grass species (Agrostis stolonifera L. and Deschampsia cespitosa (L.) Beauv.) to evaluate their potential competitive effects on young forest seedlings. The two grass species were grown in large containers under two watering regimes (regular irrigation that maintained the soil at field capacity or seasonal water stress). Spring regrowth occurred earlier in Deschampsia than in Agrostis. During the summer, under irrigated conditions, Agrostis had higher values of leaf and tiller appearance rates than Deschampsia. Under water-stressed conditions, leaf and tiller appearance rates decreased sharply for both species during the desiccation period, and regrowth was much more pronounced in Agrostis than in Deschampsia after rewatering. Observations of the root systems indicated that Deschampsia developed deeper roots than Agrostis. Despite these differences, evapotranspiration in the irrigated and in the dry treatments were similar for both grasses. In the water-stressed treatments, soil water potential decreased rapidly under both grasses and was slightly lower in Agrostis than in Deschampsia. Although the two grasses had similar soil water uptake, differences in the overall competitive effect of the two grasses on forest tree seedlings might appear because of differences in their phenology, their recovery from drought, and the development of their root system."
Language:English
References:23
Note:Abstract also appears in French
Figures
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Collet, C., H. Frochot, and J.-M. Guehl. 1996. Growth dynamics and water uptake of two forest grasses differing in their growth strategy and potentially competing with forest seedlings. Can. J. Bot. 74(10):p. 1555-1561.
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http://www.nrcresearchpress.com/doi/pdf/10.1139/b96-188
    Last checked: 09/29/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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