Speed breeding: An innovative approach in crop breeding

Speed breeding is an innovative and transformative approach in crop improvement aimed at drastically reducing the time required to develop improved cultivars. Conventional breeding methods are often constrained by long generation cycles and seasonal dependency, resulting in slow genetic gains. Speed breeding overcomes these limitations by manipulating environmental factors such as extended photoperiod, optimized temperature regimes and controlled light intensity under protected cultivation systems. This enables rapid generation advancement, allowing three to six generations per year in several crop species. The approach has been successfully applied in cereals, pulses and oilseeds and shows strong compatibility with modern breeding tools including marker-assisted selection, genomic selection, doubled haploids and genome editing technologies. Speed breeding also plays a crucial role in developing climate-resilient and stress-tolerant varieties, thereby supporting climate-smart agriculture and global food security. Despite challenges related to infrastructure costs, energy requirements and crop specificity, ongoing technological advancements are enhancing its efficiency and scalability. Overall, speed breeding represents a promising strategy for accelerating genetic gain and meeting the future demands of sustainable crop production.