The beginnings of human civili zation can be traced back to the time, ne- ly 12,000 years ago, when th e early humans gradually ch anged from a life of hunting and gathering food, to producing food. This beginning of pri- tive agriculture ensured a dependable supply of food, and fostered the living together of people in groups and the development of s o c i e ty. During th is time, plant s e e ds were recognized a s a valuable s o ur c e of food and nutrition, and began to be used for growing plants for food. Ever s i n c e, plant seeds have played an important role in the development of the...

Papers from the May 1990 conference in Germany deal with: plant viruses, subviral RNAs and viroids; nitrogen fixation, nitrogen metabolism; phytopathology; agrobacterium, transformation; genome analysis, RFLP; transposons; mitochondria, chloroplasts, photosynthesis; gene expression, photoreceptors;

This authoritative book acts as a guide to understanding maize kernel development. Written by a team of experts, it covers topics spanning pre- and post-fertilization events, embryo and endosperm development, grain filling and maturation, and factors influencing crop yield. It explores the significance of maize and other cereal grains, existing hypotheses and research, and important gaps in our knowledge and how we might fill them. This is a valuable resource for researchers of maize and other cereals, and anyone working on basic or applied science in the fields of seed development, plant...