Advances and Economical Approaches in Vitro Propagation of Bamboo Cultivars: A Comprehensive Review

Bamboo, a fast-growing, renewable resource, holds significant ecological, economic, and industrial value due to its applications in construction, paper, furniture, bioenergy, and environmental conservation. However, conventional propagation techniques, such as seed germination and vegetative methods, are often hindered by issues like poor seed viability, infrequent flowering, and limited clonal uniformity. In vitro micro propagation offers an efficient and sustainable solution for the mass multiplication of elite bamboo genotypes, ensuring year-round propagation with genetic fidelity. This review highlights recent advancements and cost-effective strategies in the in vitro propagation of major bamboo cultivars, with emphasis on species such as Bambusa tulda, Bambusa balcooa, and Melocanna baccifera. Key stages including explant selection, surface sterilization, culture initiation, shoot proliferation using cytokinins (notably BAP and TDZ), root induction using auxins like IBA, and acclimatization techniques are critically discussed. Incorporation of low-cost supplements, alternative gelling agents, and simplified protocols arepresented as viable methods to reduce production costs. Moreover, successful acclimatization protocols significantly enhance survival rates, enabling large-scale field transfer. The review also emphasizes the need for further research on genotype-specific responses, contamination control, and the use of molecular markers for clonal fidelity assessment. The integration of biotechnological tools with traditional forestry practices can facilitate the sustainable utilization and conservation of bamboo resources, particularly in developing regions. This paper aims to serve as a resource for researchers, conservationists, and industries seeking efficient propagation methods for bamboo cultivation.