Book Description
History of maize classification. How races used in classification. Geographical distribution. Existing races of maize in Mexico.
Author : Edwin John Wellhausen
Publisher :
Page : 240 pages
File Size : 25,42 MB
Release : 1952
Category : Corn
ISBN :
History of maize classification. How races used in classification. Geographical distribution. Existing races of maize in Mexico.
Author : Paul Christoph Mangelsdorf
Publisher : Belknap Press
Page : 296 pages
File Size : 29,1 MB
Release : 1974
Category : Science
ISBN :
The modern corn plant; Theories on the origin of maize; Teosinte, the closest relative of maize; The genetic nature of teosinte; Thipsacum, a more distant relative of corn; Corn's old word relatives; Pod corn, the ancestral form; The nature of the pod-corn locus; Races of maize; The concept of lineages; The role of hybridization in corn's evolution; Mutations; Genetic drift and selection; Archaeological evidence of corn's evolution; Prehistoric wild corn and fossil pollen; Corn in prehistoric art; Corn's spread to the old world; The prehistoric and moderns improvement of maize; The nature of heterosis; Modern breeding techniques.
Author :
Publisher :
Page : 412 pages
File Size : 20,34 MB
Release : 1992
Category : Corn
ISBN :
Journal devoted to maize and allied species.
Author :
Publisher :
Page : 344 pages
File Size : 21,69 MB
Release : 1982
Category : Social history
ISBN :
Author :
Publisher :
Page : 220 pages
File Size : 10,97 MB
Release : 1983
Category : Animal remains (Archaeology)
ISBN :
Author : University of Colorado
Publisher :
Page : 144 pages
File Size : 26,39 MB
Release : 1974
Category : Anthropology
ISBN :
Author : Stephen B. Brush
Publisher : Yale University Press
Page : 348 pages
File Size : 36,64 MB
Release : 2008-10-01
Category : Science
ISBN : 0300130147
div Biological diversity is as crucial in agriculture as it is in nature, and it is equally important to the economic health of both industrial and nonindustrial societies. This book offers a sweeping assessment of crop diversity and the potential for its preservation. Stephen B. Brush develops a framework for investigating biological diversity in agriculture that focuses on the knowledge and practice of farmers, and he shows how this human ecology perspective can be applied to three global issues that affect crop resources. Brush defines the dimensions of crop diversity and outlines the essential questions surrounding it. He describes the techniques used to maintain diversity in major crops of three cradles of agriculture in which he has worked: potatoes in the Peruvian Andes, maize in Mexico, and wheat in Turkey. Finally, he explores the policy issues surrounding genetic erosion of crop varieties, conservation of crop diversity, and ownership of genetic resources. /DIV
Author :
Publisher :
Page : 1012 pages
File Size : 30,55 MB
Release : 1982
Category : Government reports announcements & index
ISBN :
Author : Sissel Johannessen
Publisher : Westview Press
Page : 656 pages
File Size : 32,13 MB
Release : 1994-02-17
Category : Social Science
ISBN :
Domestikation - Vorgeschichte - USA.
Author : Paul F. Reed
Publisher :
Page : 320 pages
File Size : 19,89 MB
Release : 2000
Category : History
ISBN :
Since the 1960s, large-scale cultural resource management projects have revealed the former presence of extensive and varied Basketmaker III populations across the entire northern Southwest. These discoveries have resulted in a greatly expanded view of the BMIII period (A.D. 550-750) which immediately proceeds the Pueblo phase. Particularly noteworthy are findings of Basketmaker remains under those of later periods and in sites with open settings, as opposed to the more classic Basketmaker cave and rock shelter sites. Foundations of Anasazi Culture explores this new evidence in search of further understanding of Anasazi development. Several chapters address the BMII-BMIII transition, including the initial production and use of pottery, greater reliance on agriculture, and the construction of increasingly elaborate structures. Other chapters move beyond the transitional period to discuss key elements of the Anasazi lifeway, including the use of gray-, red-, and white-ware ceramics, pit structures, storage cists, surface rooms, full dependence on agriculture, and varying degrees of social specialization and differentiation. A number of contributions address one or more of these issues as they occur at specific sites. Other contributors consider the material culture of the period in terms of common elements in architecture, ceramics, lithic technology, and decorative media. This major synthesis of recent work on BMIII sites on the Colorado Plateau will be useful to anyone with an interest in the earliest days of Anasazi civilization.