Buradasınız

Anasayfa » Content

Effect of opening girth and some latex physiological parameters on yield of Rubber (Hevea brasiliensis)

Journal Name:

  • International Journal of Innovation and Applied Studies

Publication Year:

  • 2013

Key Words:

Author NameFaculty of Author
Abstract (2. Language): 
Field experiment was conducted to investigate the possibility of exploiting rubber (Hevea brasiliensis) for latex at a lower stem girth (40 and 45 cm) and physiological yield parameters were monitored to establish factors responsible for differences in yield due to opening girths or tapping systems tested. Three different Hevea genotypes, i.e. RRISL 211, RRIC 121 and RRIC 102 were exploited at different growth stages, i.e. girth of 40 cm (G40), girth of 45 cm (G45) and girth of 50 cm (G50), using different tapping systems. Significant clonal differences were observed for the initial rate of latex flow (IFR), plugging index (PI), total volume of latex (vol), dry rubber content (DRC) and dry rubber yield when tapping commenced at different opening girths. The overall results of the present study clearly showed that the plugging index was relatively high in trees opened at lower girths, i.e. 40 cm (G40) than in trees opened at higher girths, i.e. G45 and G50. Yield differences between trees of the same clone were mainly caused by differences in IFR, while differences between clones were mainly associated with differences in flow time. There is a highly significant positive correlation between PI and DRC irrespective of the tapping systems and opening girths. This study clearly showed that the DRC, PI and IFR vary according to year of tapping, tapping system and opening girth. At the immature phase (especially G40 trees during the first year) were probably not mature enough to show normal latex flow relationships. Furthermore, variations in yield determining parameters have to be taken in to account in devising strategies for yield improvement in different clones.
Bookmark/Search this post with
FULL TEXT (PDF): 
PDF icon ijias-13-197-03.pdf
  • 1
88-100
  • English

REFERENCES

References: 

[1] J. Tupy, “Some aspects of sucrose transport and utilization in latex producing bark of Hevea brasiliensis,” Planta, 27 :
51-64, 1985.
[2] N. U. Nair, Biochemistry and Physiology of Latex Production, In: P.J.George and C.K. Jacob (Eds.), Natural Rubber;
Agromanagement and Crop Processing, Rubber Research Institute of India, Kottayam, pp. 250-255, 2000.
[3] J. B. Gomez, Physiology of latex (Rubber) production, Malaysia Rubber Research and Development Board, Kuala Lumpur,
Malaysia, pp. 71-98, 1983.
[4] X. U. Wenxian, “Role of Whole Tree Physiology on Latex Flow,” Proceedings of the International Rubber Conference,
Kuala Lumpur, Malaysia. 29-31, 1985.
[5] J. L. Jacob, J. C. Prevot, D. Rosussel, R. Lacrotte, E. Serres, J. d’Auzac, J. M. Eschbach and H. Omont, Yield-limiting
factors, latex physiological parameters, latex diagnosis and clonal typology. (In) Physiology of rubber tree latex. J.
d’Auzac, J. L. Jacob and H. Chrestin (Eds.). pp. 345-382, 1989.
[6] J. L. Jacob, J.M. Eschbach, J.C. Prevot, D. Roussel, R. Lacrotte, H. Chrestin and J. d’ Auzac, “Physiological basis for latex
diagnosis of the functioning of the laticiferous system in rubber trees,” Proceedings of the International Rubber
Conference, 1986, Kuala Lumpur, Malaysia, 3: 43-65, 1986.
[7] M. R. Seturaj, “Yield components in Hevea brasiliensis,” Plant Cell and Environment, 4: 81-83, 1981.
[8] U. P. Waidyanatha and L.S.S. Pathiratne, “Studies on latex flow patterns and plugging indices of clones,” Journal of
Rubber Research Institute of Sri Lanka. 48: 47-55, 1971.
[9] S. Obouayeba, D. Boa, S. Ake and R. Lacrotte, “Influence of age and girth at opening on growth and productivity of
Hevea,” Indian Journal of Natural Rubber Research, 15 (1): 66-71, 2002.
[10] K. R. Vijayakumar, K.U. Thomas and R. Rajagopal, Tapping. (In) Natural Rubber: Agromanagement and Crop Processing.
P.J.George and C.K. Jacob (Eds.). pp. 232-248, 2000.
[11] K. R. Vijayakumar, S. Sulochanamma and K.U. Thomas, “Exploitation Techniques: Recent developments and
recommendations,” Proceedings of the Planters’ Conference, Kottayam, India, 58-61, 1990.
[12] Sonquhan, L., Xiehui, Y., Xiang, H. and Laiyu, X., “Development phase change of Hevea brasiliensis and application of
juvenile type clone,” Proceedings of IRRDB Symposium on Breeding of Hevea brasiliensis, Kuming, China, 1990, 26-41.
[13] G. F. J. Milford, E. C. Paardekooper and C.Y. Ho, “Latex vessel plugging, its importance to yield and clonal behavior,”
Journal of Rubber Research Institute of Malaya, 21 (3): 274-282, 1969.
[14] O. S. Peiris and D.M.Fernando, Exploitation of Rubber Trees. In: Hand Book of Rubber Culture and Processing. Rubber
Research Institute of Sri Lanka, pp. 31-56, 1983
[15] S. G. Boatman, “Preliminary physiological studies on the promotion of latex flow by plant growth regulators,” Journal of
Rubber Research Institute of Malaya, 19 (5): 243, 1966.
[16] C. Y. Ho, R. Narayanan and K.T. Chen, “Clonal nursery studies in Hevea. 1. Nursery yields and associated structural
characteristics and their variations,” Journal of Rubber Research Institute of Malaysia, 23 (4): 305, 1973.
Effect of opening girth and some latex physiological parameters on yield of Rubber (Hevea brasiliensis)
ISSN : 2028-9324 Vol. 4 No. 1, Sep. 2013 100
[17] M. R. Sethuraj, U. N. Nair and P.J. George, Influence of the initial flow rate, latex vessls rows and plugging index on the
yield of hand pollinated clones of Hevea brasiliensis Muell. Arg. With Jiras the female parents. Indian Journal of
Agriculture Science, 44: 354-356, 1974.
[18] H. Y. Yeang and K. Paranjothy, Some primary determinants of seasonal yield variation in clone RRIM 623. Journal of
Rubber Research Institute of Malaysia, 30 (3): 131-147, 1982.
[19] C. K. Lee and H. Ismail, Factors influencing the D.R.C. of Hevea latex. Planter’s Bulletin, 172: 89-98, 1982.
[20] E.C. Paardekooper, Exploitation of the rubber tree. In: C. C. Webster and W. J. Baukwill (Eds.), Rubber; Longmann
Scientific and Technical, Essex. pp. 349-414, 1989.

Thank you for copying data from http://www.arastirmax.com