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Seed dormancy mechanisms in warm season grass species

Adkins, Steve W., Bellairs, Sean M. and Loch, Don S, (2002). Seed dormancy mechanisms in warm season grass species. Euphytica,126(1):13-20.

Document type: Journal Article
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Title Seed dormancy mechanisms in warm season grass species
Author Adkins, Steve W.
Bellairs, Sean M.
Loch, Don S,
Journal Name Euphytica
Publication Date 2002
Volume Number 126
Issue Number 1
ISSN 0014-2336   (check CDU catalogue open catalogue search in new window)
Start Page 13
End Page 20
Total Pages 8
Place of Publication The Netherlands
Publisher Springer Netherlands
Language English
Field of Research 0607 - Plant Biology
0703 - Crop and Pasture Production
0706 - Horticultural Production
HERDC Category C1 - Journal Article (DEST)
Abstract Available evidence suggests that there are at least two locations for dormancy mechanisms in primary dormant seeds: mechanisms based within the embryo covering structures, and mechanisms based within the embryo. Mechanisms within the covering structures may involve mechanical, permeability and chemical barriers to germination. Mechanisms within the embryo may involve the expression of certain genes, levels of certain plant growth regulators, the activity of important respiratory pathways or the mobilisation and utilisation of food reserves. In addition, some embryos may be too immature to germinate immediately and must undergo a further growth phase before germination is possible. An individual species could have one or several of these various dormancy mechanisms and these mechanisms need to be understood when selecting treatments to overcome dormancy. The way in which certain dormancy breaking agents are thought to work is discussed and practical applications of such agents in field situations are explained.
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