| 新型排胶调节剂对橡胶树无性系热研8-79胶乳生理参数的影响 |
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| 引用本文： | 李言,史敏晶,陈月异,田维敏.新型排胶调节剂对橡胶树无性系热研8-79胶乳生理参数的影响[J].热带作物学报,2016,37(3):470-475. |
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| 作者姓名： | 李言 史敏晶 陈月异 田维敏 |
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| 作者单位： | 中国热带农业科学院橡胶研究所 农业部橡胶树生物学与遗传资源利用重点实验室 省部共建国家重点实验室培育基地-海南省热带作物栽培生理学重点实验室 海南儋州 571737 |
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| 基金项目： | 农业部科研院所基本科研业务费(No. 1630022012001)；现代农业产业技术体系建设专项(No. CAR-34-GW1)；国家自然科学基金面上项目(No. 31170642)。 |
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| 摘 要： | 合适的采胶强度对于橡胶树持续高产稳产至关重要。最近的大田试验表明,阻断乳管伤口堵塞物积累的一种新型排胶调节剂具有明显的增产效应。以橡胶树无性系热研8-79为材料,通过分析胶乳的几个生理参数,评价该增产效应的采胶强度。结果表明,在8月和10月,新型排胶调节剂处理的第一刀具有明显的增产效应。在测定的几个胶乳生理指标中,胶乳产量显著高于对照,硫醇、蔗糖和无机磷含量以及10月的干胶含量与对照无显著差异,但8月的干胶含量显著低于对照,表明其增产效应主要与胶乳产量增加有关。与0.5%乙烯利相比,施用新型排胶调节剂的不同刀次胶乳生理参数的变化更接近对照,表明采胶强度小于乙烯利。
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| 关 键 词： | 巴西橡胶树 新型排胶调节剂 乙烯利 胶乳生理参数 采胶强度 |
Effect of a Novel Latex Flow Regulator on Several Latex Physiological Parameters of Rubber Tree Clone Reyan8-79 |
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| LI Yan,SHI Minjing,CHEN Yueyi and TIAN Weimin.Effect of a Novel Latex Flow Regulator on Several Latex Physiological Parameters of Rubber Tree Clone Reyan8-79[J].Chinese Journal of Tropical Crops,2016,37(3):470-475. |
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| Authors: | LI Yan SHI Minjing CHEN Yueyi and TIAN Weimin |
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| Institution: | Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture / State Key Laboratory Incubation Base for Cultivation & Physiology of Tropical Crops, Rubber Research Institute, CATAS;Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture / State Key Laboratory Incubation Base for Cultivation & Physiology of Tropical Crops, Rubber Research Institute, CATAS;Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture / State Key Laboratory Incubation Base for Cultivation & Physiology of Tropical Crops, Rubber Research Institute, CATAS;Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture / State Key Laboratory Incubation Base for Cultivation & Physiology of Tropical Crops, Rubber Research Institute, CATAS |
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| Abstract: | An adequate exploitation strength is pivotal for the sustainable increase in rubber yield. Recent study shows that a novel latex flow regulator which has a role in blocking the accumulation of plug materials at the end of severed laticifers has an effect on increasing the rubber yield of rubber tree clone Reyan8-79 in the field. In the present study, the exploitation strength of the effect of increasing rubber yield of rubber tree clone Reyan8-79 was assessed by the determination of several latex parameters. In comparison with the control, the novel regulator caused a significant increase in rubber yield by the first tapping in either August or October. Among the tested physiological parameters, the increase in latex production was significant while there was no significant difference in the content of mercaptan, sucrose and phosphorus. The level of rubber content had no significant difference in October while was significantly reduced in August. The changes in the tested physical parameters suggest that the increasing yield effect of the novel regulator was mainly ascribed to the increase in latex production. Changes in most of physiological parameters that were caused by the application of the novel regulator were much similar to that of the control, suggesting that the exploitation strength by the novel regulator was lower than that by 0.5% ethrel. |
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| Keywords: | Hevea brasiliensis Müll Arg Novel latex flow regulator Ethrel Physiological parameter Exploitation strength |
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