Herlinawati Eva, Montoro Pascal, Ismawanto Sigit, Syafaah Afdholiatus, Aji Martini, Giner Michel, Flori Albert, Gohet Eric, Oktavia Fetrina
Sembawa Research Centre, Indonesian Rubber Research Institute, Palembang, Indonesia.
Sungei Putih Research Centre, Indonesian Rubber Research Institute, Deli Serdang, Sumatera Utara 20585, Indonesia.
Heliyon. 2022 Oct 3;8(10):e10920. doi: 10.1016/j.heliyon.2022.e10920. eCollection 2022 Oct.
Tapping Panel Dryness (TPD) is a physiological disorder affecting natural rubber production in . TPD is associated with clonal susceptibility and overexploitation of rubber trees. Most studies are based on a binary point view of the absence or presence of TPD. This study sets out to characterize the dynamic of the TPD onset through the monthly monitoring of the dry cut length. This reveals the presence of dry spots on the tapped panel of any trees. The frequency of these dry spots increases dramatically in trees developing high level of TPD. Brown bast is an irreversible form of TPD. Brown bast is correlated to a high level of dry cut length. Application of an intensive harvesting system induces early TPD occurrence, which facilitates the study of TPD. Among latex diagnosis parameters, only sucrose content is significantly associated with TPD. Other parameters are more prone to environmental effects and are not reliable as physiological markers. These findings explain the contradictory conclusions of some papers. This study suggests to use intensive harvesting system and monitor the dry cut length for genetic analysis of TPD.
割面干涸（TPD）是一种影响天然橡胶生产的生理紊乱现象。TPD与橡胶树的克隆易感性和过度开采有关。大多数研究基于TPD存在或不存在的二元观点。本研究旨在通过每月监测干割长度来表征TPD发病的动态过程。这揭示了任何树木割面上都存在干斑。在发展为高水平TPD的树木中，这些干斑的出现频率急剧增加。褐皮病是TPD的一种不可逆形式。褐皮病与高水平的干割长度相关。采用高强度采胶系统会导致TPD提前发生，这有利于对TPD的研究。在乳胶诊断参数中，只有蔗糖含量与TPD显著相关。其他参数更容易受到环境影响，作为生理标记不可靠。这些发现解释了一些论文相互矛盾的结论。本研究建议采用高强度采胶系统并监测干割长度，以便对TPD进行遗传分析。
