Salinity 4 Environmental Tolerance of Plants 3 Meteorology and Climate 3 Plant diseases 3 Salt tolerance 3 Stress 3 Stress response 3 more ... Climate change 2 Disease resistance 2 Drought 2 Drought resistance 2 Effect of stress on 2 Heavy metals 2 Horticultural Crops, (New March 2000) 2 Industrial Wastes and Effluents 2 Insect pests 2 Insects 2 Plant Cropping Systems 2 Plant Production 2 Plant pathogens 2 Plant pests 2 Planting stock 2 Sustainability 2 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 2 Adaptation 1 Agricultural Economics 1 Agricultural and Forestry Equipment (General) 1 Agroforestry 1 Agroforestry and Multipurpose Trees: Community, Farm and Social Forestry 1 Agroforestry systems 1 less ...