Full TGIF Record # 164232
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Svobodov√°, M.; Martinek, J.; Zimmermannov√°, T.
Title:Germination dynamics of amenity grasses under drought stress
Meeting Info.:11-14 April 2010: Angers, Loire Valley, France
Source:2nd European Turfgrass Society Conference Proceedings. Vol. 2, May 21 2010, p. Unknown.
# of Pages:0
Publishing Information:Angers, France: European Turfgrass Society
Related Web URL:https://web.archive.org/web/20160211230106/http://www.turfgrasssociety.eu/home/articles/code/296?headline=Germination%20dynamics%20of%20amenity%20grasses%20under%20drought%20stress
    Last checked: 08/01/2016
    Access conditions: Item is within a limited-access website
    Notes: Abstract only
Abstract/Contents:"Seed germination capacity is one of the basic criteria for satisfactory turf establishment. The process of germination involves the initiation of metabolic activity in the seed and varies with seed characteristics (genetic characters, seed quality), and conditions of the environment, i.e. sufficient amounts of water, oxygen, optimal temperature and sometimes light (Copeland and McDonald, 1995; Berrie and Drennan, 1971; M√≠ka et al, 2002). Abiotic stress, such as drought, may have differing effects in different phases of the sward establishment. In principle, when water stress occurs during seed imbibition, it may not impair the embryo. However, if water stress occurs during germination, when cell division, volume growth and germ growth have begun, the failure of the germ is more likely to occur (Bewley and Black, 1994; Houba, Hosnedl, 2002). A very important feature of the seed is its water holding capacity during a short period of increased temperature. Large loss of water may result in death by drying (Bl√°ha et al., 2003). In previous experiments, Martinek et al. (2009a,b,c) researched the influence of drought stress (5 days, 35¬įC, relative humidity 40%) after 1-9 days of seed germination. They found that a lot of the grass kernels of Deschampsia caespitosa and Festuca rubra (40-50%), and especially those of Lolium perenne and Poa pratensis (59%), were able to continue germinating. The aim of this article is to evaluate the ability of these turfgrass species to restart the process of imbibition - germination - after a longer period of drought stress and to determine the specific moment during seed imbibition and germination that drought stress is most harmful."
Language:English
References:Unknown
See Also:Other items relating to: Disasters - Drought
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Svobodov√°, M., J. Martinek, and T. Zimmermannov√°. 2010. Germination dynamics of amenity grasses under drought stress. Eur. Turfgrass Soc. Conf. Proc. 2:p. Unknown.
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