热带作物学报2026，Vol.47Issue(8)：1970-1977,8.DOI:10.3969/j.issn.1000-2561.2026.08.008
橡胶树优良品种热研73397自根无性系早期产胶及生理特性
Early Gum Production and Physiological Characteristics of Rubber Tree Clone Reyan 73397
摘要
Abstract
Planting materials constitute the material basis for ensuring high and stable yield of rubber plantations.The selection of high-quality planting materials can effectively shorten the tapping commencement period,increase the number of productive tapping trees,and thereby improve the overall yield of rubber plantations.To explore the effects of different planting materials on the early yield and latex physiological characteristics of rubber trees,three seedling types of the rubber tree cultivar Reyan 73397,namely juvenile scion budded seedlings,mature scion budded seedlings,and self-rooted clonal seedlings,were used as experimental materials.Under a randomized block design,the dry rubber yield in the 1st to 5th tapping years was systematically determined,and physiological indices including initial latex flow rate,plugging index,latex sucrose(SUC),inorganic phosphorus(Pi),thiol(RSH)and total solid content(TSC)were measured during the 1st to 3rd tapping years.The results showed that:(1)The average dry rubber yield over 1-5 tapping years followed the order:juvenile seedlings(644.40 kg/hm2)>mature seedlings(554.41 kg/hm2)>self-rooted seedlings(481.10 kg/hm2),and the yield of juvenile seedlings was significantly higher than that of self-rooted seedlings(P<0.05);(2)There were no significant differences in initial latex flow rate and plugging index among different materials,indi-cating that latex flow characteristics within the same cultivar were little affected by the type of planting material;3)The contents of latex inorganic phosphorus and sucrose were the highest in juvenile seedlings,which were significantly higher than those of self-rooted seedlings and mature seedlings(P<0.05).Juvenile budded seedlings presented better substance and energy metabolism levels in terms of thiol and total solid content,and their early rubber yield perform-ance was remarkably superior to self-rooted seedlings.Therefore,juvenile budded seedlings are recommended as the preferred choice for rubber plantation establishment in production.关键词
橡胶树/热研73397/种植材料/幼态芽接苗/干胶产量/胶乳生理Key words
Hevea brasiliensis/Reyan 73397/planting materials/juvenile budded seedlings/dry rubber yield/latex physiology分类
农业科技引用本文复制引用
高小俊,尹彦琴,高茜,熊延林,杨耀文,刘忠亮,穆洪军,何海宁..橡胶树优良品种热研73397自根无性系早期产胶及生理特性[J].热带作物学报,2026,47(8):1970-1977,8.基金项目
国家天然橡胶产业技术体系西双版纳综合试验站项目(No.CARS-33-YN1). （No.CARS-33-YN1）
