Download or read book Cytotaxonomic Studies in the Genus Erigeron written by Shung-Jun Yang and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cytotaxonomic Studies in the Genus Spartina Schreb written by Christopher J. Marchant and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Opera Botanica written by and published by . This book was released on 1960 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Forest Service Research Paper INT written by and published by . This book was released on 1966 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Theses written by National Library of Canada and published by . This book was released on 1947 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Checklist of the Vascular Plants of the Intermountain Region written by Arthur H. Holmgren and published by . This book was released on 1966 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Botany written by and published by . This book was released on 1981 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cytotaxonomical Atlas of the Arctic Flora written by Áskell Löve and published by Vaduz [Liechtenstein] : J. Cramer. This book was released on 1975 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists all the chromosome numbers published for the Vascular plants that occur naturally in the arctic.
Download or read book Mechanisms of Fire Spread Research Progress Report No 2 written by Arthur H. Holmgren and published by . This book was released on 1966 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Theses 1947 1960 written by National Library of Canada and published by . This book was released on 1973 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1963 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cytotaxonomical Atlas of the Slovenian Flora written by Áskell Löve and published by . This book was released on 1974 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematic Embryology of the Angiosperms written by Gwenda L. Davis and published by . This book was released on 1966 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by Ontario Agricultural College and published by . This book was released on 1959 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyploidy written by Walter H. Lewis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyploidy as a dramatic mutational event in the process of evolution has wide implications in nature and for the generation of new and improved crops. The three day Conference on POLYPLOIDY: BIOLOGICAL RELEVANCE focused on three aspects of this natural phenomenon: the first emphasized the characteristics of polyploidy, the second described the occurrence of polyploidy among plants and animals, and the third considered past and future areas of both fundamental and pragmatic research that involve polyploidy. New information relative to origin, cytogenetics, ecology, physiology, biochemistry, and populational studies stress the need to reexamine current views on the origins of polyploidy and its significance among both plants and animals. There are major differences in the occurrence of polyploidy between. plant groups and it is proving a much more common event among bisexual vertebrates than heretofore considered possible. Crop development and improvement must utilize approaches based fundamentally on more natural systems; in fact future research should focus more on polyploidy as a natural phenomenon that needs study at all levels of endeavor from field-oriented populational aspects to sophisticated molecular analyses and genome manipulations. This volume provides a summary of current knowledge of polyploidy pertinent to botanists, zoologists, and agriculturists who are interested in the evolution o~natural systems and who are concerned with the contribution that crop improvement can make to human well-being. Walter H. Lewis St. Louis, Missouri October, 1979 v ACKNOWLEDGMENTS The Host Committee thanks all speakers and moderators for their generous contribution to the Conference and to this volume.
Download or read book World Weeds written by LeRoy Holm and published by John Wiley & Sons. This book was released on 1997-03-05 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Responsible for a high proportion of the world's crop losses, weedstake away food that the world badly needs. They decrease thequality and quantity of vegetable fibers, wool, and hides, andinterfere with fishing, irrigation, hydroelectric power production,and the movement of shipping vessels. In order to recognize thetrue magnitude of the weed problem, and to be better equipped todesign effective weed control methods, it is vital to identify andlearn as much as possible about the many different species of thisdestructive agricultural predator. The culmination of four decades of global research, World Weedspresents comprehensive and up-to-date information on over 100weeds--addressing recent changes in such areas as crop tillagemethods, herbicide use, and agricultural runoff. This monumentalwork, featuring a wealth of original data from the authors,provides extensive coverage of the known biology of each species.Each entry contains a full botanical description, plus importantdetails on habitat requirements and distribution, seed production,ecology, physiology, crop impact, and more. Generously suppliedwith dozens of unique illustrations and species distribution mapscovering over 100 countries, this definitive resource boasts anextensive multilingual index of common names, and a massivebibliography with over 3,000 references to facilitate furtherreading and research. World Weeds is a truly masterful referencethat will be celebrated by weed and crop scientists, botanists, andothers for years to come.
