Direct-Seeded Rice: Genetic Improvement of Game-Changing Traits for Better Adaption
2024
Priyanka Negi | Jagadish Rane | Rajendra Sadashiv Wagh | Tukaram Jayaram Bhor | Dipti Digambar Godse | Priyanka Jadhav | C. Anilkumar | Dasari Sreekanth | K. Sammi Reddy | Sharad Ramrao Gadakh | K.M. Boraih | C.B. Harisha | P.S. Basavaraj
The sustainability of rice production continues to be a subject of uncertainty and inquiry attributed to shifts in climatic conditions. In light of the impending climate change crisis and the high labor and water costs accompanying it, direct-seeded rice (DSR) is unquestionably one of the most practical solutions. Despite its resource and climate-friendly advantages, early maturing rice faces weed competitiveness and seedling establishment challenges. Resolving these issues is crucial for promoting its wider adoption among farmers, presenting it as a more effective sustainable rice cultivation method globally. Diverse traditional and contemporary breeding methods are employed to mitigate the limitations of the DSR approach, leveraging advanced techniques such as speed breeding and genome editing. Focusing on key traits like mesocotyl length elongation, early seedling vigor, root system architecture, and weed competitiveness holds promise for transformative improvements in DSR adaptation at a broader scale within farming communities. This review aims to summarize how these features contribute to increased crop production in DSR conditions and explore the research efforts focusing on enhancing DSR adaptation through these traits. Emphasizing the pivotal role of these game-changing traits in DSR adaptation, our analysis sheds light on their potential transformative impact and offers valuable insights for advancing DSR practices.
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