The only book available that covers a large number of Great Plains plants, this handbook provides information about the seeds of 280 species of weedy plants of the Great Plains, including ones commonly found in crops, rangeland, lawns, anfd along roadsides.

The new edition of Seeds contains new information on many topics discussed in the first edition, such as fruit/seed heteromorphism, breaking of physical dormancy and effects of inbreeding depression on germination. New topics have been added to each chapter, including dichotomous keys to types of seeds and kinds of dormancy; a hierarchical dormancy classification system; role of seed banks in restoration of plant communities; and seed germination in relation to parental effects, pollen competition, local adaption, climate change and karrikinolide in smoke from burning plants. The database for the world biogeography of seed dormancy has been expanded from 3,580 to about 13,600 species. New insights are presented on seed dormancy and germination ecology of species with specialized life cycles or habitat requirements such as orchids, parasitic, aquatics and halophytes. Information from various fields of science has been combined with seed dormancy data to increase our understanding of the evolutionary/phylogenetic origins and relationships of the various kinds of seed dormancy (and nondormancy) and the conditions under which each may have evolved. This comprehensive synthesis of information on the ecology, biogeography and evolution of seeds provides a thorough overview of whole-seed biology that will facilitate and help focus research efforts. - Most wide-ranging and thorough account of whole-seed dormancy available - Contains information on dormancy and germination of more than 14,000 species from all the continents – even the two angiosperm species native to the Antarctica continent - Includes a taxonomic index so researchers can quickly find information on their study organism(s) and - Provides a dichotomous key for the kinds of seed dormancy - Topics range from fossil evidence of seed dormancy to molecular biology of seed dormancy - Much attention is given to the evolution of kinds of seed dormancy - Includes chapters on the basics of how to do seed dormancy studies; on special groups of plants, for example orchids, parasites, aquatics, halophytes; and one chapter devoted to soil seed banks - Contains a revised, up-dated classification scheme of seed dormancy, including a formula for each kind of dormancy - Detailed attention is given to physiological dormancy, the most common kind of dormancy on earth

Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.

This book addresses herbicides and their use as an important aspect of modern weed management and strives to place them in an ecological framework. Many weed scientists believe agriculture is a continuing struggle with weeds--without good weed control, good and profitable agriculture is impossible. Each agricultural discipline sees itself as central to agriculture's success and continued progress, and weed science is no exception. While not denying the importance of weed management to successful agriculture, this book places it in a larger ecological context. The roles of culture, economics, and politics in weed management are also discussed, enabling scientists and students to understand the larger effects on society. - Information on New herbicides included, along with the old herbicides that are important for understanding the history - New section on weed resistance to herbicides and genetic engineering - New information on invasive plants - Expanded chapters on Biological Control, Pesticide Legislation and Regulation, Weed Management Systems, and more - Instructor resources can be found at http://textbooks.elsevier.com/web/Login.aspx, and it is password protected. Please contact your sales representative at [email protected] for access to the instructor resources. The insturctor site consists of chapter questions, essay questions, an exam and images from the book

From the mixed-grass prairies of the Panhandle in the west, to the Sandhills prairie and mixed-grass prairies in central Nebraska, to the tallgrass prairies in the east, the state is home to hundreds of wildflower species, yet the primary guide to these flowers has been out of print for almost two decades. Now back in a second edition with updated nomenclature, refined plant descriptions, better photographs where improvements were called for, and a new design, Jon Farrar’s Field Guide to Wildflowers of Nebraska and the Great Plains, originally published by NEBRASKAland magazine and the Nebraska Game and Parks Commission, is a visual treat and educational guide to some of the region’s showiest and most interesting wildflowers. Organizing species by color, Farrar provides scientific, common, and family names; time of flowering; distribution both for Nebraska specifically and for the Great Plains in general; and preferred habitat including soil type and plant community from roadsides to woodlands to grasslands. Descriptions of each species are succinct and accessible; Farrar packs a surprising amount of information into a compact space. For many species, he includes intriguing notes about edibility, medicinal uses by Native Americans and early pioneers, similar species and varieties, hybridization, and changes in status as plants become uncommon or endangered. Superb color photographs allow each of the 274 wildflowers to be easily identified and pen-and-ink illustrations provide additional details for many species. It is a joy to have this new edition riding along on car seats and in backpacks helping naturalists at all levels of expertise explore prairies, woodlands, and wetlands in search of those ever-changing splashes of color we call wildflowers.

A study of 170 kinds of plants and the strata that yield them, showing how they apply in the delimination of the Paleocene series.