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Clonal Propagation of Bambusa vulgaris Schrad ex wendl by Leafy Branch Cuttings. M. A. Hossain. University of Chittagong, Bangladesh. Korea University, Korea. Bamboos in Bangladesh. 33 Species: 7 wild species in forests 26 domesticated. - PowerPoint PPT Presentation
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Clonal Propagation of Bambusa vulgaris Schrad ex wendl by Leafy Branch Cuttings
M. A. Hossain
University of Chittagong, Bangladesh Korea University, Korea
Bamboos in BangladeshBamboos 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
Propagation methods..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
Easiest method
Limited only to wet seasons
Very few branches develop root at their base
2. Pre-rooted branch cutting
(Banik,1997 )
Propagation methods..Propagation methods..
3. Secondary branch cutting
Hossain et al. J. Bamboo and Rattan, 2005, 4 (3), 231–241
Propagation methods..Propagation methods..
4. Primary and Secondary branch cutting
Hossain et al., J. Bamboo and Rattan, 2006, 5 (3&4),117-126
Propagation methods..Propagation methods..
Convenient The numbers of suitable branches (>5mm dia.) to produced root are
inadequate. Limited only to rainy season during June-July.
Propagation by Leafy Branch Cuttings 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
Nodal leafy cuttings Tip cuttings Non-mist propagator 4-6 weeks
Rooted cuttingsCutlings in polybag (2 months)
Propagules in nursery bed (6 months old )
Propagule ready for planting
Experimental procedureExperimental procedure
Results..Results..
0
10
20
30
40
50
60
70
0% 0.1% 0.4% 0.8%
IBA concentrations
Ro
oti
ng
per
cen
tag
eNodal leafy cuttings
Tip cuttingsa
cd c
b b
c
d
e
Rooting percentage
0
2
4
6
8
10
12
0% 0.1% 0.4% 0.8%
IBA concentration
Ro
ot
nu
mb
er
Nodal leafy cuttings
Tip cuttings a
b
c cb bc
e
d
Root number
Nodal leafy cuttings
Tip cuttings
Results..Results..
Cutting types IBA 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 cuttings 10.2±0.70 a 12.1±2.09 a 12.0±1.68 a 9.9±0.44 a NS
Root length
Results..Results..
50
60
70
80
90
100
0% 0.1% 0.4% 0.8%
IBA concentration
Su
rviv
al p
erc
ent
age
Nodal Leafy cuttings
Tip cuttingsa a
bcd
abcab
bcd
d
cd
Survival percentage
Nodal leafy cuttings
Tip cuttings
Results..Results..
Growth performance
Nodal leafy cuttings Tip cuttings
Results..Results..
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 findingsSummary of findings
Further aspectsFurther 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.
Acknowledgement
International organizing committee of WBC
University of Chittagong, Bangladesh
Bangladesh Forest Research Institute
Korea University, Korea
Thank You