PJB-2006-153
PREFACE
MUHAMMAD ASHRAF AND HABIAB-UR-RAHMAN ATHAR
Abstract
Preface: Abiotic stresses such as salinity, drought, flooding, extremes of temperatures and nutrient deficiency or toxicity limit crop productivity world-wide. However, this situation becomes more problematic in developing countries, where they cause food insecurity and poverty for large populations, particularly in rural areas. For example, water stress affected more than 70 million hectares of rice-growing land world-wide. While salt stress and nutrient stress render more than one hundred million hectares of agricultural land uncultivable thereby resulting in low outputs, poor human nutrition and reduced educational and employment opportunities. Thus, abiotic stresses are the major factors of poverty for millions. In this scenario, it is urged that strategies should be adopted which may be used to get maximum crop stand and economic returns from stressful environments. New advances in plant sciences are contributing to improve quality of human life. Knowledge in biological sciences is doubling every year. It is imperative to keep updated ourselves with advances in plant abiotic stresses to meet the current scientific challenges, particularly to meeting the growing food demand for world population. To share these experiences, an international symposium “Strategies for crop improvement against abiotic stresses” was organized at the Department of Botany, University of Agriculture, Faisalabad Pakistan during 18-20th September
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