This book is the outcome of global dedication for researches at physiological and molecular levels that substantially deals with challenges of ongoing international concern over the abiotic stress research, which as the major environmental factors affects plant growth-development. On the other hand, this book also highlights focused researches of significance on image-based plant phenotyping; phenomics and its application in physiological breeding; trace elements; plant functions; physiological basis of yield variation; medicinal and aromatic plants and so on. The aim is to make stronger the distinctive outcome of conscientious research in some of the very sensitive areas of Plant Physiology-Plant Molecular Physiology/ Molecular Biology that broadly highlights the recent developments and mechanisms underlying plant resilience to changing environments. This book brings collectively much needed twenty-one review articles commendably dealing with challenges of ongoing international concern over the abiotic stresses under changing climate besides vital aspects related to image-based plant phenotyping; phenomics and its application in physiological breeding; trace elements; plant functions; physiological basis of yield variation; medicinal and aromatic plants and so on. Apart from fulfilling the acute need of this kind of select theme by research teams and scientists engaged in various facets of plant sciences research in traditional and agricultural universities, institutes and research laboratories throughout the world, it would be extremely a constructive book for acquiring advanced knowledge by post-graduate and Ph.D. scholars in response to the innovative courses in Plant Physiology, Plant Biochemistry, Plant Molecular Physiology, Plant Biotechnology, Environmental Sciences, Plant Pathology, Microbiology, Soil Science & Agricultural Chemistry, Agronomy, Horticulture, and Botany. Contents: Section I: Abiotic Stresses & Plant Productivity: Physiological & Molecular Perspectives 1. Molecular Physiology of Dehydration Stress Responses in Plant: A Review— Hrishikesh Upadhyaya, Bhaben Tanti and Sanjib Kumar Panda 2. Exercise of Different Promoters in ABA Mediated Pathways Under Dehydration Stress In Crops Species— M.K. Adak 3. Drought, Agricultural Practices and Private Sector Lending for Sustainability in India— Swati Agrawal, Manoj Kumar, Prerna Singh and Kavita Shah 4. Small Heat Shock Proteins: The Thermal Stress Managers— Ankita Chandola, Vijai Pandurangam and Kamla Dhyani 5. Physiological Approach of Heat Tolerance in Wheat: A Good Tool to Screen Wheat for Heat Tolerance— Kamla Dhyani, Ankita Chandola, Shweta Sahni and Alok Shukla 6. Physiological Adaptations and Dynamics for Plant Productivity under Low Light Intensity— C. Aochen, J. Pohlong, S. S. Dutta, S. Pyngrope, S. Aochen and A. Pandey 7. Abiotic Determinants of Tree Seedling Growth in Tropical Dry Forests — Sachchidanand Tripathi, Rahul Bhadauria, Pratap Srivastava, Rishikesh Singh and A. S. Raghubanshi 8. Physiological Adaptation of Rice to Anaerobic Stress Conditions caused by Flooding During Germination and Early Growth and Its Implications in Crop Improvement— D. Vijayalakshmi, R. Naveen Kumar, C. Vijayalakshmi and M. Raveendran 9. Cadmium Enrichment in Soil : Plant Physiological Manifestation— Tapas Kumar Pandit and Dhiman Mukherjee 10. Legume Symbiosis under Abiotic Stresses- A Review— Ranju Gulati 11. Introduction to Phenomics and Its Application in Physiological Breeding— A. Nishant Bhanu, H.R. Bhandari, M.N. Singh and K. Srivastava 12. Image-based Plant Phenotyping— Ruchi Bansal, Jyoti Kumari, Rashmi Yadav and Sundeep Kumar 13. An Insight in to Signal Transduction Pathways and the Roles of Phyto-hormones : An Emerging Challenge in Plant Physiological Research— Md. Afjal Ahmad, Savita Jangde and Pravin Prakash 14.. Metal Toxicity in Plants: Induction of Oxidative Stress, Antioxidative Defense System, Metabolic Alterations and Phytoremediation— Arti Gautam and Rama Shanker Dubey Section II: Plant Trace Elements in Plant Physiology 15. Nickel and its Role in Plant Physiology — Enrique J. Baran 16. Iodine: An Unique Element with Special Reference to Soil-Plant-Air System — Prasann Kumar and A. Hemantaranjan Section III: Plant Functions Research in Agricultural Progression 17. Plant Purple Acid Phosphatases: Structure and Functions — Enrique J. Baran 18. Plant Lectins, Agricultural Advancements and Mammalian Toxicity — Prasann Kumar and Padmanabh Dwivedi Section IV: Physiological Basis of Yield 19. Physiological Basis of Yield Variation — A. K. Trivedi, G. Pandey and V. K. Singh Section V: Nutraceuticals, Medicinal & Aromatic Plant Wealth 20. Microalalgae as a Potential Source of Nutraceuticals and Pharmaceuticals — Surendra Singh, Ankita Kachhwaha and Rishibha Dixit Comprehensive Review 21. Medicinal and Aromatic Plants: Wealth of India — Dhiman Mukherjee Subject Index