The Light Root


Book Description

‘This plant is the only one which is in a position to store light ether; this will be indispensable for people in future.’ – Rudolf Steiner Koberwitz, Whitsun 1924: Rudolf Steiner had just completed his momentous lecture course on biodynamic agriculture and was waiting for a car to take him to the station. Suddenly he was approached by two of his pupils with an urgent question: Would his new indications for treating soil and vegetables be sufficient to provide, ‘...nutrition appropriate to our times and in accordance with the spirit?’ Steiner’s frank response was somewhat surprising: ‘It will not be sufficient even in the most favourable circumstances. What should be done is to cultivate the Dioscorea batatas in Europe so that it can take over from the potato as the staple diet.’ In the many decades since that conversation, various attempts have been made to cultivate Dioscorea batatas – the ‘light root’ – in Europe, initially by Steiner’s close colleague Guenther Wachsmuth. More recently, biodynamic farmer Ralf Roessner began to research the plant and its background, but soon discovered problems with the specimens available in Europe. Unsatisfied with the standard of the plants, in 2002 he travelled to the original growing areas of Dioscorea batatas in China, where he was able to form a comprehensive picture of the best planting methods and conditions. ‘The nodules which I found and brought back with me’, he writes, ‘showed similar light ether characteristics to the original plants of Wachsmuth’s’. Having successfully cultivated and marketed this light root, Roessner presents some carefully assembled introductory materials based on his experiences and those of a colleague. This small book, illustrated with colour images, is intended for people who wish to discover more about the plant’s being and spiritual mission as a ‘helper of progress’. Roessner explains how the light root stores ‘light ether’ in a unique manner, making it not only a valuable food, but also a ‘carrier of the spirit’. This light root could even ‘...decisively influence the development of humanity and the earth’. Aside from studying esoteric aspects, he gives answers to frequently-asked practical questions about the plant and its cultivation.




Lucia and the Light


Book Description

One winter in the Far North the sun disappears and Lucia, accompanied by her milk-white cat, braves the freezing cold and trolls who want to eat her, trying to find the sun and bring it back.




TID.


Book Description




General Biology II


Book Description

GENERAL BIOLOGY is an introductory level college biology textbook that provides students with an understandable and engaging encounter with the fundamentals of biology. Written for a two-semester undergraduate course of biology majors and presented as a bound set of two distinct volumes, this reader-friendly textbook(s) is concept driven vs. terminology driven. That is, the book(s) are based on the underlying concepts and principles of biology rather than the strict memorization of biological terms and terminology. Written in a student-centered and conversational style, this educational research-based book(s) connects students to all aspects of biology from the molecular to the biosphere. End-of-chapter questions challenge students to think critically and creatively while incorporating science process skills and biological principles.




Achiever's Biology


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Plant Roots


Book Description

The third edition of a standard resource, this book offers a state-of-the-art, multi-disciplinary presentation of plant roots. It examines structure and development, assemblage of root systems, metabolism and growth, stressful environments, and interactions at the rhizosphere. Reflecting the explosion of advances and emerging technologies in the field, the book presents developments in the study of root origin, composition, formation, and behavior for the production of novel pharmaceutical and medicinal compounds, agrochemicals, dyes, flavors, and pesticides. It details breakthroughs in genetics, molecular biology, growth substance physiology, biotechnology, and biomechanics.




Plant Roots


Book Description

Following its predecessors, Plant Roots: The Hidden Half, Fifth Edition is thoroughly updated and reports the major changes that have taken place in root research since the last edition published over 10 years ago. Considered a widely acclaimed book in the field of plant sciences, this edition includes a broad array of topics reflecting progress being made in the subdomains of root biology, featuring chapters on modern topics, while retained chapters are fully updated to demonstrate significant developments made in our understanding of root biology and in fast-evolving research methodologies and techniques. It reviews all root-related processes, from the evolution of roots in past eras to single-cell genomics, allowing readers to grasp an overall view of the state-of-the-art research in this field. Among the 104 contributors to this book are seasoned experts in the field, as well as uprising specialists who have already made a distinguished mark in scientific literature. All of the chapters are extensively referenced featuring specific information on any topic related to the biology of the hidden half of plants. Featuring full color illustrations throughout, this handbook is an essential source of information for both expert and novice root scientists.




Biology of Adventitious Root Formation


Book Description

Charles E. Hess Department of Environmental Horticulture University of California Davis, CA 95616 Research in the biology of adventitious root formation has a special place in science. It provides an excellent forum in which to pursue fundamental research on the regulation of plant growth and development. At the same time the results of the research have been quickly applied by commercial plant propagators, agronomists, foresters and horticulturists (see the chapter by Kovar and Kuchenbuch, by Ritchie, and by Davies and coworkers in this volume). In an era when there is great interest in speeding technology transfer, the experiences gained in research in adventitious root formation may provide useful examples for other areas of science. Interaction between the fundamental and the applied have been and continue to be facilitated by the establishment, in 1951, of the Plant Propagators' Society, which has evolved into the International Plant Propagators' Society, with active programs in six regions around the world. It is a unique organization which brings together researchers in universities, botanical gardens and arboreta, and commercial plant propagators. In this synergistic environment new knowledge is rapidly transferred and new ideas for fundamental research evolve from the presentations and discussions by experienced plant propagators. In the past 50 years, based on research related to the biology of adventitious root formation, advances in plant propagation have been made on two major fronts.




A Year in Thoreau's Journal


Book Description

Thoreau's journal of 1851 reveals profound ideas and observations in the making, including wonderful writing on the natural history of Concord. For more than seventy years, Penguin has been the leading publisher of classic literature in the English-speaking world. With more than 1,700 titles, Penguin Classics represents a global bookshelf of the best works throughout history and across genres and disciplines. Readers trust the series to provide authoritative texts enhanced by introductions and notes by distinguished scholars and contemporary authors, as well as up-to-date translations by award-winning translators.