Comprehensive Overview of Plant Germplasm Augmentation: Strategies, Techniques and Applications

Plant genetic resources (PGR) are fundamental for crop improvement and conservation, encompassing a wide range of genetic materials including land races, modern varieties, and wild relatives. Effective germplasm exploration is essential for advancing plant genetic resources and ensuring agricultural sustainability. Traditional germplasm collection faces challenges such as remote locations, limited material availability, and transport issues. This review explores various strategies to address these challenges, including coarse-grid and fine-grid survey methods, multi-species versus species-specific collecting missions, and the implications of breeding systems on germplasm collection. It highlights the benefits of Geographic Information Systems (GIS) in managing PGR, from incentivizing mapping strategies to optimizing conservation and evaluation processes. Additionally, the review emphasizes the role of in vitro techniques in overcoming limitations of traditional methods, detailing field and laboratory procedures for successful in vitro collection. By integrating these approaches, the review aims to enhance the efficiency and effectiveness of PGR management, ensuring the preservation of genetic diversity for future generations.