Citation
Wu Ji-Lin, . and Yang Shang-Qiong, . and Hao Bing-Zong, . and Yuan Xie-Hui, . and Xu Lai-Yu, . Characteristics related to higher rubber yield of Hevea brasiliensis Juvenile-type clone G11. pp. 125-132. ISSN 1511-1768
Abstract
In a comparative trial between Gil juvenile-type buddings (JT buddings) and mature-type buddings (MT buddings) the structural and physiological characteristics of the JT buddings tapped for about 5 years were studied in relation to their higher yield performance. The JT buddings were derived from the juvenile buds of 1.5-year-old anther somatic plants produced by tissue culture and the MT buddings from normal planting materials. The dry rubber yield in g/tree/tapping during the first 4 years was 25-40 higher in the JT buddings than in the MT buddings. In comparison with the MT buddings the JT buddings had increased girth and bark thickness larger total number of laticifer rings higher dry rubber content higher mean initial rate of latex flow lower plugging index and lutoid bursting index higher latex sucrose and inorganic phosphorus contents and a similar level of latex thiol content. Based on these results and data available it is inferred that the juvenile-type clones are superior to the corresponding mature-type clones both in latex flow and in latex regeneration and they may be promising planting materials in future rubber production.
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Abstract
In a comparative trial between Gil juvenile-type buddings (JT buddings) and mature-type buddings (MT buddings) the structural and physiological characteristics of the JT buddings tapped for about 5 years were studied in relation to their higher yield performance. The JT buddings were derived from the juvenile buds of 1.5-year-old anther somatic plants produced by tissue culture and the MT buddings from normal planting materials. The dry rubber yield in g/tree/tapping during the first 4 years was 25-40 higher in the JT buddings than in the MT buddings. In comparison with the MT buddings the JT buddings had increased girth and bark thickness larger total number of laticifer rings higher dry rubber content higher mean initial rate of latex flow lower plugging index and lutoid bursting index higher latex sucrose and inorganic phosphorus contents and a similar level of latex thiol content. Based on these results and data available it is inferred that the juvenile-type clones are superior to the corresponding mature-type clones both in latex flow and in latex regeneration and they may be promising planting materials in future rubber production.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Hevea |
| AGROVOC Term: | Hevea brasiliensis |
| AGROVOC Term: | Bark |
| AGROVOC Term: | Clones |
| AGROVOC Term: | Crop yield |
| AGROVOC Term: | Grafting |
| AGROVOC Term: | Growth |
| AGROVOC Term: | Latex |
| AGROVOC Term: | Plant developmental stages |
| AGROVOC Term: | Planting stock |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 06:28 |
| URI: | http://webagris.upm.edu.my/id/eprint/23318 |
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