Effect of opening girth and some latex physiological parameters on yield of rubber (Hevea brasiliensis) (Record no. 58005)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02426nam a2200205Ia 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Gunasekera H K L K |
| 245 #0 - TITLE STATEMENT | |
| Title | Effect of opening girth and some latex physiological parameters on yield of rubber (Hevea brasiliensis) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher | International Journal of Innovation and Applied Studies |
| Year of publication | 2013 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 88-100 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Field experiment was conducted to investigate the possibility if 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 50cm (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. 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. The 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 into account in devising strategies for yield improvement in different clones. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Clone |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Opening girth |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Physiological yield parameters |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Yield |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | De Costa W A J M |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nugawela A |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | Online copy |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Journals |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Serial Enumeration / chronology | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Journals | RRII Library | RRII Library | Latex harvest technology | 10/09/2014 | Volume 4, Issue 1 | Journals |