西南农业学报2026，Vol.39Issue(7)：1494-1502,9.DOI:10.16213/j.cnki.scjas.2026.7.007
不同间作模式对橡胶树热研917生胶性能的影响及其与气候因子的关联度分析
Effects of different intercropping patterns on raw rubber properties of rubber tree Reyan 917 and its correlation analysis with climatic factors
摘要
Abstract
[Objective]The study aimed to investigate the impact of intercropping patterns on latex and natural rubber properties in rubber trees(Hevea brasiliensis),explore the association between these properties and climatic factors,and provide a basis and technical support for research on high-quality cultivation techniques for natural rubber.[Method]A field experiment was conducted using 15-year-old tapping trees of the rubber clone Reyan 917.Monoculture rubber served as the control.The effects of intercropping with Alpinia oxyphylla and Amor-phophallus konjac on latex physiology,mineral element content(N,P,K,Mn),raw rubber properties,and molecular weight distribution were compared.[Result](i)Compared to conventional monoculture,both intercropping with A.oxyphylla and A.konjac significantly reduced the total solids content(average decrease0.85%and4.31%,respectively)and dry rubber content(average decrease0.76%and4.07%,re-spectively)of fresh latex,leading to sucrose accumulation within the laticifers.(ii)These intercropping systems reduced the plasticity reten-tion index(PRI)of raw rubber by6.14%and3.41%,decreased the number-average molecular weight(Mn)by7.62%and9.36%,and decreased the weight-average molecular weight(Mw)by 8.29%and 9.58%,respectively.(iii)Significant seasonal variations were observed in latex physiological parameters,mineral element contents(N,P,K,Mn),rubber molecular weight,and raw rubber PRI under all three culti-vation modes.While intercropping did not alter the seasonal trends of these latex physiological parameters and mineral element contents,it de-layed the peak occurrence times for initial plasticity,Mooney viscosity,and the polydispersity index(PDI).(iv)Interactions were observed between latex performance and the properties of the processed raw rubber.Both latex and raw rubber properties were influenced by climatic factors,with air temperature being the primary influencing factor.[Conclusion]Comprehensive analysis indicates that intercropping with A.oxyphylla and A.konjac without fertilization degraded the quality of raw rubber produced from H.brasiliensis.The research results provide data support for the screening of high-quality cultivation modes for rubber trees.关键词
热研917/生胶性能/间作益智和魔芋/季节性动态/灰色关联度Key words
Reyan 917/Row rubber properties/Intercropping Alpinia oxyphylla and Amorphophallus konjac/Seasonal dynamics/Grey relation-al degree分类
农业科技引用本文复制引用
张盈盈,吴定全,彭文涛,安锋,王纪坤..不同间作模式对橡胶树热研917生胶性能的影响及其与气候因子的关联度分析[J].西南农业学报,2026,39(7):1494-1502,9.基金项目
海南省科技项目(ZDYF2024TRXJ002) （ZDYF2024TRXJ002）
中国热带农业科学院国家热带农业科学中心科技创新团队项目(CATASCXTD202507) （CATASCXTD202507）
现代农业产业技术体系建设专项资金项目(CARS-33-ZP1) （CARS-33-ZP1）
