1. Clonal Propagation of Bambusa vulgaris Schrad ex wendl by Leafy Branch Cuttings M. A. Hossain University of Chittagong, Bangladesh Korea University, Korea

2. Bamboos in Bangladesh 33 Species: 7 wild species in forests 26 domesticated Bambusa vulgaris (Baijja Bansh): most widely used bamboo species in rural Bangladesh Widely used in Building construction House making Agricultural implements Fishing traps Improvised bridge on small canel Making household products Bambusa vulgaris groove

3. Propagation methods..  Do not set seed after flowering, no seedling progeny  Propagate only through Vegetative methods Low survival rate Bulkiness of (20-30Kg) of rhizomes Expensive option 1. Rhizome cutting Rhizome cutting

4. Easiest method Limited only to wet seasons Very few branches develop root at their base 2. Pre-rooted branch cutting (Banik,1997 ) Propagation methods..

5. 3. Secondary branch cutting Hossain et al. J. Bamboo and Rattan, 2005, 4 (3), 231–241 Propagation methods..

6. 4. Primary and Secondary branch cutting Hossain et al., J. Bamboo and Rattan, 2006, 5 (3&4),117-126 Propagation methods.. Convenient The numbers of suitable branches (>5mm dia.) to produced root are inadequate. Limited only to rainy season during June-July.

7. Propagation by Leafy Branch Cuttings Regeneration from leafy brunch cuttings - Nodal leafy cuttings - Tip cuttings Effect of IBA on rooting ability of leafy branch cuttings - 0%, 0.1%, 0.4% and 0.8% IBA Solution

8. Nodal leafy cuttings Tip cuttingsNon-mist propagator 4-6 weeks Rooted cuttings Cutlings in polybag (2 months) Propagules in nursery bed (6 months old ) Propagule ready for planting Experimental procedure

9. Results.. Rooting percentage

10. Root number Nodal leafy cuttings Tip cuttings Results..

11. Cutting typesIBA concentration p 0%0.1%0.4%0.8% Nodal leafy cuttings 10.1±0.41 a 13.9±0.95 a 14.0±0.74 a 12.8±2.03 a NS Tip cuttings10.2±0.70 a 12.1±2.09 a 12.0±1.68 a 9.9±0.44 a NS Root length Results..

12. Survival percentage Nodal leafy cuttings Tip cuttingsResults..

13. Growth performance Nodal leafy cuttings Tip cuttings Results..

14. Nodal leafy cutting and tip cuttings, both produced roots, survived and formed rhizome. The highest rooting percentage and root number per cutting was in 0.8% IBA treated cuttings. IBA treated cuttings showed better survival capacity in the nursery condition over controlled one. The result presented here could help in opening a new avenue for the mass propagation of this variety bamboo species. Summary of findings

15. Further aspects The rooting percentage of leafy branch cuttings of B. vulgaris in this study was 56. There is scope to increase the rooting ability of cuttings of the species. Furthermore, the performance of planting stock developed through the methods was not assessed in field condition. This might be one of the important aspects for future study.

16. Acknowledgement International organizing committee of WBC University of Chittagong, Bangladesh Bangladesh Forest Research Institute Korea University, Korea

17. Thank You