The document summarizes a study on using stem cuttings from rubber trees (Hevea brasiliensis) as an alternative method for mass propagation. The study tested different stem cutting parts, concentrations of the growth hormone ANAA, and soaking times. Results showed that brown, older stem parts soaked in a 1 tbsp ANAA per 3 liters of water solution performed best in terms of survival rate, sprouting, and root growth. This stem cutting method was found to be a viable way for rubber farmers and nurseries to propagate rubber trees during off-seasons when traditional planting materials are limited. Further research is recommended to optimize the method.

1. POTENTIALS OF THE KNOWN
WHITE GOLD TREE SPECIES
(Hevea brasiliensis) STEMCUT FOR
MASS PROPAGATION
DR. ONOFRE S. CORPUZ
Asso. Prof. CFCST- College of Agriculture
Dr. Onofre S. Corpuz

2. Introduction
•
•
•
•
Rubber is a seasonal tree species known
to be the white gold tree in Mindanao
Nurserymen/planters could hardly provide
means of producing planting materials off
season
Thus this study try to find alternative
methods of producing planting materials
Results will help rubber planters and
nurserymen to cope with the shortage of
rubber planting materials during off
seasons.
Dr. Onofre S. Corpuz

3. Objective
• To find out the success of stem cut
rubber
through
survival
rate, sprouts and rooting potentials
as influence by stem cut parts, rate
of growth hormones and time of
soaking
Dr. Onofre S. Corpuz

4. Conceptual Framework
Rubber
(Hevea
brasiliensis)
Source Tree
- RRIM 600
.
Stem Cut Parts
• Brown
• Green
Stem Cut Success
• Survival
• Sprouting
• Root growth
Dr. Onofre S. Corpuz

5. RESEARCH METHODS
• Conducted at CFCST from July 17 to October 2, 2011
• 180 stem cut (green and brown stem) at 1foot length
• Stem cut were soak in water with ANAA at different
concentrations
such
as
1tbsp/litH2O
and
1tbsp/3litH2O including control treatment (no
application).
• After soaking at decided number of hours (0 hours
as control, 6hrs and 12 hours) stem cut were planted
on poly bag soil filled with sandy clay soil at a ratio
of 1:2. The experiment is arranged in a split-split plot
design
Dr. Onofre S. Corpuz

6. Results
Survival Rate
Table 1. Survival rate of stem cut rubber after 75 days as influenced
by stem parts and levels of ANAA
Treatment
Stem Parts
Levels of ANAA
Percent
Green
Brown
No Application
1tbsp/1lit.H2O
1tbsp/3lit.H2O
40.67a
74.00b
48.30a
58.30ab
65.80b
Mean with the same letter subscript are not significantly different at 5% level
Dr. Onofre S. Corpuz

7. Sprouting
Table 2. Sprouting potentials of stem cut rubber as
influenced by stem parts
Stem
17
45
60
75
Parts Days Days Days Days
Green 6.267a 5.800a 5.000a 4.067a
Brown 3.800b 8.067b 7.467b 7.400b
Dr. Onofre S. Corpuz

8. Sprouting
Table 3. Sprouting potentials of stem cut rubber as
influenced by levels of ANAA
Levels of
ANAA
17
Days
45
Days
60
Days
75
Days
No Application
3.083a
6.083a
5.167a
4.83a
1tbsp/1lit.H2O
7.000b
7.500b
7.250b
5.83ab
1tbsp/3lit.H2O
5.00ab
7.500b
6.33ab
6.58b
Dr. Onofre S. Corpuz

9. Length of Sprout
Table 4. Length of sprout (cm) after 75 days as
Factors
Treatment
Mean
Stem Parts
Green
5.7644a
Brown
12.700b
No Application
9.733a
Levels of
1tbsp/1lit.H2O
9.436a
ANAA
1tbsp/3lit.H2O
8.778a
Dr. Onofre S. Corpuz

10. Rooting Growth Potentials
Table 5. Rooting potentials of stem cut rubber
as affected by stem parts
Stem
Parts
No.of
Roots
Length
No. of
of Root Secondary
(cm)
Roots
Green
2.0
4.65a
5.4a
Brown
2.24
6.66b
8.95b
Dr. Onofre S. Corpuz

11. Root Growth Potentials
Table 6. Rooting potentials as influenced by levels of ANAA
Levels of ANAA
Length of Root
No. of Roots
(cm)
No. of Secondary
Roots
No Application
2.22a
7.389a
7.286a
1tbsp/1lit.H2O
2.84a
7.632a
8.867a
1tbsp/3lit.H2O
4.40b
9.544b
9.125a
Mean with the same letter subscript are not significant at 5% level
Dr. Onofre S. Corpuz

12. Conclusion
Older/brown stem parts performed significantly
better
Lower concentration of ANAA (1tbsp/3lit.H2O)
performed better
Time of soaking did not significantly influenced
sprouting and rooting potentials
Stem cut rubber can be mass propagated as an
alternative planting materials
Dr. Onofre S. Corpuz

13. Potential Impact and Recommendations
Stem cut rubber tree can be propagated
Brown/older stem parts
1tbsp/3lit.H2O ANAA
Trials with other parameters and treatments such
as
different
watering
frequency,
varied
temperature and
shading
intensity,
soil
medium, length of cuttings, varietal source, other
growth hormones, time of cutting collections
, position of planting and age of mother
plant/source tree
Successful stem cut in the study should be
Dr. Onofre S. Corpuz
outplanted for field trials

14. Dr. Onofre S. Corpuz