Most crop specialists agree that the use of good quality seed is the quickest way to increase crop production and productivity. (the term 'seed' is used to detone true botanical seed, tubers, roots, or other plant parts. Since root and tuber crops are almost exclusively multiplied by vegetative propagation, this is the meaning of seed commonly used in this publication.) Without good seed, the impact of other inpust on yield, such as festilizar and soil preparation, will not be as economical. IN additon, good see can be adapted to small as well as large farm, and it is responsive even under less favorable climatic conditions.

Handy for commercial producers as well as backyard gardeners, this classic guide for growers and sellers of niche market produce provides detailed information about growing specialty crops that are growing in popularity among consumers. Includes 63 crop sheets-from arugula to radicchio, basil to thyme, prickly pear to tomatillos, variety and heirloom tomatoes. Includes market information, resources, and a glossary of Asian vegetable names.

Need for biotechnology research in Africa; Enhancing the genetic base; Cell and tissue culture; Controlled gene manipulation; Using molecular markers; Other selected applications of biotechnology; Policy issues.

This book discusses; somaclonal variation in crop improvement, the role of tissue culture in rapid clonal propagation and production of pathogen-free plant, protoplasts in crop improvement, cell selection and long-term high-frequency regeneration of cereals and legumes, agrobacteria-mediated gene transformation and vectors for gene cloning in plants, and plant frost injury and its management.