In the present era of serious threats being experienced by variable biological processes involved in regulating the primary productivity of all kinds of ecosystems, it is imperative to have a deep understanding of the mechanisms underlying plant responses to environmental stress. At the same time, we are bound to give serious thought to the development of methodologies for enhancing primary productivity under such environmental stresses.
The present publication is, therefore, designed to cater to the needs of all those who are interested in the above-mentioned ventures. It embodies scientific information of practical utility on crop improvement under drought, salinity, temperature extremes and environmental pollution. Evaluation and conservation of biodiversity of vegetable and fruit crops have also been included. We are confident that this book shall be quite useful for scientists, scholars and teachers belonging to the disciplines of Botany, Agricultural Botany, Forest Sciences, Horticulture, Soil Science, Environmental Sciences, Plant Breeding, Plant Physiology, Plant Pathology and Seed Science and Technology.