Seed Germination In Desert Plants
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Author | : Yitzchak Gutterman |
Publisher | : Springer Science & Business Media |
Total Pages | : 262 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642756980 |
During germination, the most resistant stage of the life cycle - the seed - changes to the most sensitive stage, namely the seedling. Therefore, in desert plant species seed dispersal and subsequent germination in the optimum time an place place are particularly critical parameters. Discussed here are the ways and means by which desert plants have adapted through the course of evolution to their extreme environment. Two such strategies which have evolved are a) plants with relatively large and protected seeds which germinate when the chance of seedling survival is high and the risk relatively low or b) those with an opportunistic strategy: minute seeds which germinate after low rainfall under high risk for seedling survival if additional rain does not follow. Most species adopt a combination of the two mechanisms. Species have adapted both genotypically and phenotypically, both aspects of which are also discussed in this thorough text. The reader is provided with a good understanding of the complex influences on each seed traced through from initial development to germination stage regarding germination preparation and subsequent survival.
Author | : Yitzchak Gutterman |
Publisher | : Springer Science & Business Media |
Total Pages | : 372 |
Release | : 2002-08-28 |
Genre | : Science |
ISBN | : 9783540431725 |
Annual desert plant species of unrelated taxa in the Negev Desert of Israel have developed complementary sets of adaptations and survival strategies as ecological equivalents with physiological, morphological and anatomical resemblances, in the various stages of their life cycles. After 40 years of research in hot deserts Yitzchak Gutterman provides a comprehensive treatise of such adaptations and strategies. In doing so he covers the following topics: post-maturation primary seed dormancy, which prevents germination of maturing seeds before the summer; seed dispersal mechanisms with escape or protection strategies; cautious or opportunistic germination strategies; seedling drought tolerance. The day-length is an important factor in regulating flowering as well as the phenotypic plasticity of seed germination which is also affected by maternal factors.
Author | : Hashim Abdel-Muttalib Muhktar |
Publisher | : |
Total Pages | : 108 |
Release | : 1961 |
Genre | : Desert plants |
ISBN | : |
Author | : Yitzchak Gutterman |
Publisher | : Springer Science & Business Media |
Total Pages | : 363 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642559743 |
Annual desert plant species of unrelated taxa in the Negev Desert of Israel have developed complementary sets of adaptations and survival strategies as ecological equivalents with physiological, morphological and anatomical resemblances, in the various stages of their life cycles. After 40 years of research in hot deserts Yitzchak Gutterman provides a comprehensive treatise of such adaptations and strategies. In doing so he covers the following topics: post-maturation primary seed dormancy, which prevents germination of maturing seeds before the summer; seed dispersal mechanisms with escape or protection strategies; cautious or opportunistic germination strategies; seedling drought tolerance. The day-length is an important factor in regulating flowering as well as the phenotypic plasticity of seed germination which is also affected by maternal factors.
Author | : Karen van Rheede van Oudtshoorn |
Publisher | : Springer Science & Business Media |
Total Pages | : 266 |
Release | : 1998-12-04 |
Genre | : Science |
ISBN | : 9783540648864 |
Dispersal processes have important effects on plant distribution and abundance. Although adaptations to long range dispersal (telechory) are by no means rare in desert plants, many desert plant species do not possess any features to promote dispersal (atelechory), while others have structures that hamper dispersal (antitelechory). The high frequency with which atelechorous and antitelechorous mechanisms are present in plants inhabiting arid areas indicates the importance of these adaptations. Among the benefits derived from these adaptations are the spreading of germination over time, the provision of suitable conditions for germination and subsequent seedling establishment, and the maintenance of a reservoir of available seeds (seed bank). This book describes the ways and means - anatomical, morphological and ecological - by which dispersal in desert plants has evolved to ensure the survival of these species in their harsh and unpredictable environment.
Author | : D. Koller |
Publisher | : |
Total Pages | : 0 |
Release | : 1963 |
Genre | : |
ISBN | : |
Author | : Karen van Rheede van Oudtshoorn |
Publisher | : Springer Science & Business Media |
Total Pages | : 249 |
Release | : 2013-03-09 |
Genre | : Science |
ISBN | : 3662035618 |
Dispersal processes have important effects on plant distribution and abundance. Although adaptations to long range dispersal (telechory) are by no means rare in desert plants, many desert plant species do not possess any features to promote dispersal (atelechory), while others have structures that hamper dispersal (antitelechory). The high frequency with which atelechorous and antitelechorous mechanisms are present in plants inhabiting arid areas indicates the importance of these adaptations. Among the benefits derived from these adaptations are the spreading of germination over time, the provision of suitable conditions for germination and subsequent seedling establishment, and the maintenance of a reservoir of available seeds (seed bank). This book describes the ways and means - anatomical, morphological and ecological - by which dispersal in desert plants has evolved to ensure the survival of these species in their harsh and unpredictable environment.
Author | : Dov Koller |
Publisher | : |
Total Pages | : 180 |
Release | : 1966* |
Genre | : Desert plants |
ISBN | : |
Author | : D. Koller |
Publisher | : |
Total Pages | : 77 |
Release | : 1963 |
Genre | : |
ISBN | : |
Author | : Carol C. Baskin |
Publisher | : Elsevier |
Total Pages | : 684 |
Release | : 2001 |
Genre | : Language Arts & Disciplines |
ISBN | : 9780120802630 |
Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination provides a working hypothesis of the ecological and environmental conditions under which carious kinds of seed dormancy have developed. It also presents the seed germination of morethan 3500 species of trees, shrubs, vines, and herbaceous species.