This unique work of reference provides quick and easy access to the remarkable diversity of mutant phenotypes expressed by the maize plant. Its major portion consists of over 400 color photographs of well-established mutants arranged by chromosome position, detailed descriptions of the mutants' gene loci, and a current summary of the physical structure of genes that have been characterized at the molecular level. First published in 1968 and long out of print, Mutants of Maizehas been entirely revised by three of the corn plant's most distinguished investigators, enlarged to cover twice the number of mutants, and redesigned with clarity and elegance. All maize biologists will want this magnificent book in their personal library. In addition, because mutant maize genes have counterparts in most species, the book can be considered a general guide to the consequences of mutation in the entire plant kingdom. All maize biologists will want this magnificent book in their personal library. In addition, because mutant maize genes have counterparts in most species, the book can be considered a general guide to the consequences of mutation in the entire plant kingdom.

This unique work of reference provides quick and easy access to the remarkable diversity of mutant phenotypes expressed by the maize plant. Its major portion consists of over 400 color photographs of well-established mutants arranged by chromosome position, detailed descriptions of the mutants' gene loci, and a current summary of the physical structure of genes that have been characterized at the molecular level. First published in 1968 and long out of print, Mutants of Maizehas been entirely revised by three of the corn plant's most distinguished investigators, enlarged to cover twice the number of mutants, and redesigned with clarity and elegance. All maize biologists will want this magnificent book in their personal library. In addition, because mutant maize genes have counterparts in most species, the book can be considered a general guide to the consequences of mutation in the entire plant kingdom. All maize biologists will want this magnificent book in their personal library. In addition, because mutant maize genes have counterparts in most species, the book can be considered a general guide to the consequences of mutation in the entire plant kingdom.

The inflorescence of the monoecious maize plant is unique among the Gramineae in the sharp separation of the male and female structures. The male tassel at the terminus of the plant most often sheds pollen before the visual appearance of the receptive silks of th the female ear at a lateral bud, normally at the 10 leaf [I]. Earlier studies examined the ontogeny of the growing tissues beginning with the embryo in the kernel through to the obvious protuberances of the growing point as the kernel germinates. The differentiated developing soon-to-become tassel and the lateral bulges that develop into the ears on the lateral buds become apparent very early in the germinating kernel [2, 3, 46]. A certain number of cells are destined for tassel and ear development [8]. As the plant develops, there is a phase transition [\3, 16] from the vegetative lateral buds to the reproductive lateral buds. This change in phase has been ascribed to genotypic control as evidenced in the differences among different genotypes in the initiation of the reproductive [I]. The genetic control of tassel and ear initiation has been gleaned from anatomical observations. Lejeune and Bernier [I2] found that maize plants terminate the initiation of additional axillary meristems at the time of tassel initiation. This would indicate that the top-most ear shoot is initiated on the same day as the initiation of tassel development and this event signals the end of the undifferentiated growing point.

The Maize Handbook represents the collective efforts of the maize research community to enumerate the key steps of standard procedures and to disseminate these protocols for the common good. Although the material in this volume is drawn from experience with maize, many of the procedures, protocols, and descriptions are applicable to other higher plants, particularly to other grasses. The power and resolution of experiments with maize depend on the wide range of specialized genetic techniques and marked stocks; these materials are available today as the culmination of nearly 100 years of genetic research. A major goal of this volume is to introduce this genetical legacy and to highlight current stock construction programs that will soon benefit our work, e. g. high-density RFLP maps, deletion stocks, etc. Both stock construction and maintenance are relatively straightforward in maize as a result of the ease of crossing and the longevity of stored seeds. Crossing is facilitated by the separate staminate (tassel) and pistillate (ear) flowers, a feature almost unique to maize. On the other hand, many of the genetic methodologies utilized with maize, including the precision of record keeping, can be adapted to other plants. Facile communication and a spirit of co-operation have characterized the maize genetics community since its earliest days. Starting in the 1930s, institutions such as annual Maize Genetics Cooperation Newsletter, the Maize Genetics Stock Center, and the annual maize genetics meeting provide continuity to the field.

North American Agroforestry Explore the many benefits of alternative land-use systems with this incisive resource Humanity has become a victim of its own success. While we’ve managed to meet the needs—to one extent or another—of a large portion of the human population, we’ve often done so by ignoring the health of the natural environment we rely on to sustain our planet. And by deteriorating the quality of our air, water, and land, we’ve put into motion consequences we’ll be dealing with for generations. In the newly revised Third Edition of North American Agroforestry, an expert team of researchers delivers an authoritative and insightful exploration of an alternative land-use system that exploits the positive interactions between trees and crops when they are grown together and bridges the gap between production agriculture and natural resource management. This latest edition includes new material on urban food forests, as well as the air and soil quality benefits of agroforestry, agroforestry’s relevance in the Mexican context, and agroforestry training and education. The book also offers: A thorough introduction to the development of agroforestry as an integrated land use management strategy Comprehensive explorations of agroforestry nomenclature, concepts, and practices, as well as an agroecological foundation for temperate agroforestry Practical discussions of tree-crop interactions in temperate agroforestry, including in systems such as windbreak practices, silvopasture practices, and alley cropping practices In-depth examinations of vegetative environmental buffers for air and water quality benefits, agroforestry for wildlife habitat, agroforestry at the landscape level, and the impact of agroforestry on soil health Perfect for environmental scientists, natural resource professionals and ecologists, North American Agroforestry will also earn a place in the libraries of students and scholars of agricultural sciences interested in the potential benefits of agroforestry.