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Author: Brian Thomas Publisher: Elsevier ISBN: 0080538878 Category : Science Languages : en Pages : 445
Book Description
Photoperiodism is the response to the length of the day that enables living organisms to adapt to seasonal changes in their environment as well as latitudinal variation. As such, it is one of the most significant andcomplex aspects of the interaction between plants and their environment and is a major factor controlling their growth and development. As the new and powerful technologies of molecular genetics are brought to bear on photoperiodism, it becomes particularly important to place new work in the context of the considerable amount of physiological information which already exists on the subject. This innovative book will be of interest to a wide range of plant scientists, from those interested in fundamental plant physiology and molecular biology to agronomists and crop physiologists. - Provides a self-sufficient account of all the important subjects and key literature references for photoperiodism - Includes research of the last twenty years since the publication of the First Edition - Includes details of molecular genetic techniques brought to bear on photoperiodism
Author: Brian Thomas Publisher: Elsevier ISBN: 0080538878 Category : Science Languages : en Pages : 445
Book Description
Photoperiodism is the response to the length of the day that enables living organisms to adapt to seasonal changes in their environment as well as latitudinal variation. As such, it is one of the most significant andcomplex aspects of the interaction between plants and their environment and is a major factor controlling their growth and development. As the new and powerful technologies of molecular genetics are brought to bear on photoperiodism, it becomes particularly important to place new work in the context of the considerable amount of physiological information which already exists on the subject. This innovative book will be of interest to a wide range of plant scientists, from those interested in fundamental plant physiology and molecular biology to agronomists and crop physiologists. - Provides a self-sufficient account of all the important subjects and key literature references for photoperiodism - Includes research of the last twenty years since the publication of the First Edition - Includes details of molecular genetic techniques brought to bear on photoperiodism
Author: Roxana Savin Publisher: Springer ISBN: 9781493986200 Category : Technology & Engineering Languages : en Pages : 0
Book Description
This book offers a comprehensive and state-of-the-art source reference for understanding the functions and mechanisms responsible for yield and quality determination under a range of conditions. By uncovering relationships and challenges of successful and scalable crop management and breeding, this volume addresses the challenges of environmentally sound production of bulk and quality food, fodder, fiber, and energy which are of ongoing international concern. Contemporary agriculture and crop management confronts the challenge of increasing demand in terms of quantitative and qualitative production targets. These targets have to be achieved against a background of climate change, including soil and water scarcity and higher temperatures, and the environmental and social aspects of agricultural sustainability. This book views crop production as an active source of methods, theories, ideas, and tools for application in genetic improvement and agronomy.
Author: Randy J. Nelson Publisher: Oxford University Press ISBN: 0199714630 Category : Science Languages : en Pages : 596
Book Description
Life evolves in a cyclic environment, and to be successful, organisms must adapt not only to their spatial habitat, but also to their temporal habitat. How do plants and animals determine the time of year so they can anticipate seasonal changes in their habitats? In most cases, day length, or photoperiod, acts as the principal external cue for determining seasonal activity. For organisms not living at the bottom of the ocean or deep in a cave, day follows night, and the length of the day changes predictably throughout the year. These changes in photoperiod provide the most accurate signal for predicting upcoming seasonal conditions. Measuring day length allows plants and animals to anticipate and adapt to seasonal changes in their environments in order to optimally time key developmental events including seasonal growth and flowering of plants, annual bouts of reproduction, dormancy and migration in insects, and the collapse and regrowth of the reproductive system that drives breeding seasons in mammals and birds. Although research on photoperiodic time measurement originally integrated work on plants and animals, recent work has focused more narrowly and separately on plants, invertebrates, or vertebrates. As the fields have become more specialized there has been less interaction across the broader field of photoperiodism. As a result, researchers in each area often needlessly repeat both theoretical and experimental work. For example, understanding that there are genetically distinct morphs among species that, depending on latitude, respond to different critical photoperiods was discovered separately in plants, invertebrates, and vertebrates over the course of 20 years. However, over the past decade, intense work on daily and seasonal rhythms in fruit flies, mustard plants, and hamsters and mice, has led to remarkable progress in understanding the phenomenology, as well as the molecular and genetic mechanisms underlying circadian rhythms and clocks. This book was developed to further this type of cooperation among scientists from all related disciplines. It brings together leading researchers working on photoperiodic timing of seasonal adaptations in plants, invertebrates, and vertebrates. Each of its three sections begins with an introduction by the section editor, and at the end of the book, the section editors present a synthesis of common themes in photoperiodism, as well as discuss similarities and differences in approaches to the study of photoperiodism, and future directions for research on photoperiodic time measurement.
Author: Hans Mohr Publisher: Springer Science & Business Media ISBN: 3642654185 Category : Science Languages : en Pages : 249
Book Description
The discovery of the reversible red far-red control of plant growth and development and the subsequent in vivo identification and isolation of the photoreceptor pigment, phyto chrome, constitutes one of the great achievements in modern biology. It was primarily a group of investigators at the Plant Industry Station, Beltsville, Mary land, headed by the botanist H.A. BORTHWICK and the physical chemist S.B. HENDRICKS, who made the basic discoveries and developed a theoretical framework on which the current progress in the field of phytochrome is still largely based. While the earlier development of the phytochrome concept has been covered by a num ber of excellent articles by the original investigators [104,105,33,238] as well as by others who joined the field of phytochrome research later [72, 109, 219], a comprehensive and up-to-date treatment of photomorphogenesis is not available at present. Since it seems to be needed for teaching as well as for researchers I have tried to summarize the present state of the field, reviewing the historical aspects of the phytochrome story only insofar as they are required to understand the present situation. The emphasis of my treatment will be on developmental physiology ("photomorphogenesis") rather than on phytochrome per se.
Author: Neil O. Anderson Publisher: Springer Science & Business Media ISBN: 9781402065699 Category : Education Languages : en Pages : 860
Book Description
Floriculture is one of the fastest-growing sectors of commercial agriculture. This book provides a unique and valuable resource on the many issues and challenges facing flower breeders, as well as the industry at-large. Featuring contributions from 32 international authorities, it offers tools and directions for future crop domestication and enhancement as well as offers essential information for breeding a wide range of floriculture crops.
Author: Bibhas Chandra Mazumdar Publisher: ISBN: 9788170353638 Category : Science Languages : en Pages : 200
Book Description
Photoperiodism and vernalization are fascinating areas in plant physiology. The phenomena were conceived as the expedients to switch on flowering in plants but with passage of time, divulged intricacies establishing as exponents to a wider range of functional processes in them. Despite much of the complexities on the living processes in plants have been discovered by delving into these areas, much remains to be unravelled. The present title has brought forward the diverse features of these disciplines to the students and buding scientists of plant physiology in a simplified form to arouse their interest and gain ground for deeper understanding into these spheres. Contents Part I: Photoperiodism Chapter 1: Physical Aspects of Light and its Role in Plants; Physical aspect of light; How light affect plants; Chapter 2: Photoperiodism; Historical aspects; Definition and concept; Photoperiodic groups of plants; Maturity of plants for photoperiodic responses; Requirement of the number of photo inductive cycles; Photoperiodic induction; Site of perception of photoperiodic stimulus; Role of dark and light periods in photoperodic cycles; Role of light quality and phytochrome; Time measurement by plants; Mechanism of photoperiodism; Genetic approach of photoperiodic response in plants; Photoperiodic effects other than flowering; Practical utilization of photoperiodism; Review of terminology. Part II: Vernalization Chapter 1: Physical Aspects of Heat and its Role in Plants; Physical aspect of heat; How heat affect plants; Chapter 2: Vernalization; Historical aspect; Definition and concept; Quantitative and qualitative responses; Examples of vernalizable seeds and plants; Site of perception of vernalization stimulus; Maturity factor in vernalization; Technique of vernalization of seeds and other plant parts; Induction of vernalization effect; Reversibility of vernalization response; Mechanism of vernalization; Genetic approach of vernalization; Practical utilization of vernalization; Relationship between vernalization and photoperiodism.
Author: G.S. Singhal Publisher: Springer Science & Business Media ISBN: 9401148325 Category : Science Languages : en Pages : 1018
Book Description
Photobiology is an important area of biological research since a very large number of living processes are either dependent on or governed by light that we receive from the Sun. Among various subjects, photosynthesis is one of the most important, and thus a popular topic in both molecular and organismic biology, and one which has made a considerable impact throughout the world since almost all life on Earth depends upon it as a source of food, fuel and oxygen. However, for growth of plants, light is equally essential, and research on photomorphogenesis has revealed exciting new developments with the application of newer molecular biological approaches. The present book brings together and integrates various aspects of photosynthesis, biology of pigments, light regulation of chloroplast development, nuclear and chloroplast gene expression, light signal transduction, other photomorphogenetic processes and some photoecological aspects under one cover. The chapters cover biochemical and molecular discussions of most of the above topics in a comprehensive manner and include a wide range of `hot topics' that are currently under investigation in the field of photobiology of cyanobacteria, algae and plants. The authors of this book are selected international authorities in their fields from USA, Europe, Australia and Asia. The book is designed primarily to be used as a text book by graduates and post-graduates. It is, however, also intended to be a resource book for new researchers in plant photobiology. Several introductory chapters are designed as suitable reading for undergraduate courses in integrative and molecular biology, biochemistry and biophysics.
Author: Richard E. Kendrick Publisher: Springer Science & Business Media ISBN: 9780792325505 Category : Science Languages : en Pages : 868
Book Description
David Dickinson is a household name, the king of the catchphrase, undisputed darling of daytime TV and a rising star. He's a respected antiques expert and exudes a taste for the finer things in life. But the road to his success has not been as smooth as his patter and he's learnt a lot at the school of hard knocks.
Author: Brian Thomas
Author: Brian Thomas
Author: Roxana Savin
Author: Richard Amasino
Author: Randy J. Nelson
Author: Hans Mohr
Author: B. S. Vergara
Author: Neil O. Anderson
Author: Bibhas Chandra Mazumdar
Author: G.S. Singhal
Author: Richard E. Kendrick