Conventional agriculture has attempted to exploit arable land by applying chemical fertilizers, pesticides, and irrigation water. These practices become increasingly tenuous as they exhaust our supplies of fossil fuels, deplete aquifers and raise concerns about the safety of food and the overall effect of agriculture on the quality of rural life. Genetic improvement of crop plants for stress conditions and for less favourable environments is a cost-effective way to develop future sustainable agricultural systems. New approaches in biotechnology can develop high yielding and more nutritious crop varieties, improve resistance to disease and also reduce the need for fertilizer and other expensive agricultural chemicals. It could also improve forestry and its products, fibre crops and chemical feedstocks. This book will be an important resource guide for agriculture and biotechnology students and professionals in their study and job.
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