Rooting induction of leafy stem cuttings of Hevea brasiliensis can be used as a relevant tool for the cultivation, conservation of genetic diversity, and rescue of this species in Peru, decimated by decades of extractive practices. In this study, we evaluated the effects of different numbers of leaflets and concentrations of indole-3-butyric acid (IBA) in the rooting capacity of leafy stem cuttings of H. brasiliensis. Cuttings 6–7 cm long were collected from stockplants in a germplasm bank; leaves were pruned to 2 or 5 leaflets, and the cutting base was treated with one of the following IBA concentrations: 0, 1000, 2000, 3000, 4000, or 5000 ppm. Cuttings were placed in trays with a sandy substrate and transferred to plastic mini-tunnels with fogging irrigation. After 29 days, cuttings with 5 leaflets and 2000 ppm of IBA showed the best results in survival (100%), rooting percentage (79%), and roots number (4.1) and length (2.9 cm). The high conversion rate of cuttings to plants indicates the feasibility of this technique as a simple and effective tool, both for the conservation and the commercial propagation of selected rubber tree genotypes.

巴西橡胶树的叶状茎条的生根诱导可作为在秘鲁进行该品种的栽培，保护遗传多样性和拯救该物种的一种相关工具，但数十年来的提取实践已使之丧失了生命力。在这项研究中，我们评估了不同数量的小叶和浓度的吲哚-3-丁酸（IBA）对巴西橡胶树叶插条生根能力的影响。。在种质库中从砧木中收集到6-7厘米长的插条；将叶子修剪成2或5个小叶，并用以下IBA浓度之一处理切面基料：0、1000、2000、3000、4000或5000 ppm。将碎屑放在带有沙质底物的托盘中，并通过雾化灌溉转移到塑料迷你隧道中。29天后，插有5张小叶和2000 ppm IBA的插条在存活率（100％），生根率（79％）和根数（4.1）和长度（2.9 cm）方面显示出最佳结果。cutting插到植物的高转化率表明该技术作为一种简单有效的工具的可行性，既可以用于选定橡胶树基因型的保护，也可以用于商业推广。