Finch-Savage, William E. and Leubner-Metzger, Gerhard (2006) Seed dormancy and the control of germination. NEW PHYTOLOGIST, 171 (3). pp. 501-523. ISSN 0028-646X

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Abstract

Seed dormancy is an innate seed property that defines the environmental conditions in which the seed is able to germinate. It is determined by genetics with a substantial environmental influence which is mediated, at least in part, by the plant hormones abscisic acid and gibberellins. Not only is the dormancy status influenced by the seed maturation environment, it is also continuously changing with time following shedding in a manner determined by the ambient environment. As dormancy is present throughout the higher plants in all major climatic regions, adaptation has resulted in divergent responses to the environment. Through this adaptation, germination is timed to avoid unfavourable weather for subsequent plant establishment and reproductive growth. In this review, we present an integrated view of the evolution, molecular genetics, physiology, biochemistry, ecology and modelling of seed dormancy mechanisms and their control of germination. We argue that adaptation has taken place on a theme rather than via fundamentally different paths and identify similarities underlying the extensive diversity in the dormancy response to the environment that controls germination.

Item Type:	Journal Item
Subjects:	S Agriculture > SB Plant culture
Journal or Publication Title:	NEW PHYTOLOGIST
Publisher:	BLACKWELL PUBLISHING
ISSN:	0028-646X
Date:	2006
Volume:	171
Number:	3
Number of Pages:	23
Page Range:	pp. 501-523
Identification Number:	10.1111/j.1469-8137.2006.01787.x
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/33271

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