EFFECTS OF VEGETATIVE ORGAN AGE OF Dendrocalamus barbatus Hsueh & D.Z.Li AND Thyrsostachys siamensis GAMBLEAGE ON THEIR SURVIVAL RATE AND QUALITY OF ROOTED CUTTINGS
Keywords:
Bamboo, branch cutting, offset, vegetative propagationAbstract
The study aimed to investigate effects of age of offset (including rhizome and 2 - 3 internodes) and branch cutting on survival rate and quality of D. barbatus and T. siamensis rooted cutting. One-factor experiment was designed as a completely randomized block with 3 replicates. The results showed that the age of offset had no significant effect (P = 0.774) on the survival rate of D. barbatus but was significant (P < 0.001) for T. siamensis. The survival rate of three treatments of D. barbatus after 60 propagule days was quite high and the difference was not significant (71.1 - 77.8%). Meanwhile, the survival rate of juvenile offset (< 12 months) of T. siamensis (HGT1) was significantly higher than that of the other two treatments, HGT2 and HGT3 (82.2% versus 11.1% and 2.2%). Juvenile branch < 12 months of D. barbatus (HCL1) had a high survival rate after 120 propagule days (73.3%), significantly higher (P < 0.001) compared with 12 - 24 month-branch (HCL2) and > 24 month-branch (HCL3), 20.0% for both treaments. Rooting ability of T. siamensis branch was very poor, the best rooting rate was only 8.9% in HCT1 (< 12 months) after 120 propagule days and 0% in both treatments with older age. Age of vegetative organs have a significant effect on quality of rooted cutting for both species. The findings implied that juvenile plant parts were preferred for asexual propagation for bamboos and branch cutting should only be used to propagate for species with stout branches
References
1. Banik, R.L. 1995. A manual for vegetative propagation of Bamboos. International Network for Bamboo and Rattan (INBAR). UNDP/FAO Regional Forest Tree Improvement Project (FORTIP) and Bangladesh Forest Research Institute (BFRI). 66 pages.
2. Banik, R.L. 2008. Issues in production of bamboo planting materials - lessons and strategies. The Indian Forester. 134(3): 291 - 304.
3. Bhatnagar, H. P. 1974. Vegetative propagation rooting practices with forest trees in India. New Zealand Journal of Forestry Science. 4(2): 170 - 176.
4. Bhol, N. and Nayak, H. 2012. Effect of planting alignment and cutting size on propagation of Bambusa vulgaris. Journal of Tree Sciences. 31(1&2): 69 - 75.
5. Dzung, N.A. and Nguyet, N.T.A. 2021. Research on propagation technique of of Dendrocalamus dienbienensisH.N.Nguyen & V.T.Nguyen by shoot cutting method. Vietnam Journal of Forest Science. 2: 3 - 11.
6. Dzung, N.A., Tho, N.V., Que, N.D., Son, N.H., Minh, N.H., Ban, D.V., Trung, N.Q., Thao, D.V., Duong, N.T., Nguyet, N.T.A., 2018. Research on planting techniques of Dendrocalamus dienbienensis H.N.Nguyen providing raw materials for the processing industry in the Northern mountainous provinces. Final report of
project. Vietnamese Acedamy of Forest Sciences.
7. Elbasheer, Y. H. A. and Raddad, E. A. Y. 2013. Vegetative propagation of Oxytenanthera abyssinica by culm cuttings. Journal of Natural Resources and Environmental Studies. 1(3): 1 - 5.
8. Hossain, M. A., Jewel, M. E. U., Sen, M. and Serajuddoula, M. 2006. Rooting ability of Bambusa vulgaris var. striata branch cutting as influenced by cutting types and rooting hormones. Journal of Bamboo and Rattan, 5: 117 - 126.
9. Huyen B.T., 2015. Research on some scientific bases for intensive cultivation of plantation of Dendrocalamus barbatus Hsueh et D.Z. Li. PhD thesis, Vietnam Forestry University.
10. Islam, M. S., Bhuiyan, M. K., Hossain, M. M. and Hossain, M. A. 2011. Clonal propagation of Bambusa vulgaris by leafy branch cuttings. Journal of Forestry Research. 22(3): 387 - 392.
11. Joshi, R., Tewari, S. K., Kaushal, R. and Tewari, L. 2012. Rooting behaviour of Bambusa balcooa Roxb. In relation to season, age and growing conditions. The Indian Forester. 138(1): 79 - 83.
12. Kaushal, R., Gulabrao, Y. A., Tewari, S. K., Chaturvedi, S. and Chaturvedi, O.P. 2011. Rooting behaviour and survival of bamboo species propagated through branch cuttings. Indian Journal of Soil Conservation. 39(2): 171- 175.
13. Khoi, D.K., Hung, N.Q., Thanh, L.Q., Ban, D.V. 2010. Breeding techniques Thyrsostachys siamensis (kurz ex munro) gamble and Bambusa sp. by rhizomes and branch air-layering. Vietnam Journal of Forest Science. 4: 1563 - 1568
14. Lam, B. 2020. Warning about the risk of running out of bamboo and rattan materials. https://vtv.vn/xa-hoi/baodong-nguy-co-can-ket-tai-nguyen-may-tre - 20200620102010125.htm.
15. Nghia, N.H. 2005. Bamboos of Vietnam. Agricultural Publisher, Hanoi. 206 pp.
16. Senyanzobe, J. M. V., Jennifer, R., Grace, M., Faustin, N., Gaudence, M. and Dieu, R. R. J. D. 2013. Growth of Bambusa vulgaris and Araundinaria alpina under different nursery site conditions at the higher institute of agriculture and animal husbandry, northern Rwanda. Journal of Biodiversity and Environmental Sciences. 3(9): 9 - 14.
17. Singh, S., Kumar, P. and Ansari, S. A. 2004. A simple method for large scale production of Dendrocalamus asper. Scientia Horticulturae. 100: 251 - 255
