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首页> 外文期刊>African Journal of Plant Science >Effects of rooting media and indole-3-butyric acid (IBA) concentration on rooting and shoot development of Duranta erecta tip cuttings
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Effects of rooting media and indole-3-butyric acid (IBA) concentration on rooting and shoot development of Duranta erecta tip cuttings

机译：生根培养基和吲哚-3-丁酸（IBA）浓度对杜兰特直枝tip插生根和枝条发育的影响

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摘要

Duranta erecta is popularly grown as an ornamental plant in tropical and semi-tropical gardens. Current demands for the shrub have prompted the need for effective propagation methods. In this study, the influence of indole-3butyric acid (IBA) hormone concentration and media on rooting of D. erecta propagated from tip cuttings under greenhouse conditions were investigated. IBA hormone was used in three concentrations (2500, 5000, and 7500 ppm) and 0 ppm was the control. The study consisted of three media types (river sand, pine bark, a mixture of peat and perlite at a 1:1 ratio). The experiment was arranged in a 3×4 factorial layout in Randomized Complete Block Design replicated 3 times. Cutting survival, root length and number, shoot length and number were analysed. There was no interaction (P>0.001) between IBA concentration and media for all the measured parameters. The results showed that the optimum concentration of IBA is 5000 ppm, beyond which were inhibitory in all parameters except on root length. Type of media influenced survival and shoot number with pine bark giving the highest but did not affect root number, root length and shoot number.
机译：Duranta erecta通常在热带和半热带花园中作为观赏植物生长。当前对灌木的需求促使人们需要有效的繁殖方法。在这项研究中，研究了吲哚3丁酸（IBA）激素浓度和培养基对温室条件下tip插繁殖的直立木D生根的影响。 IBA激素以三种浓度（2500、5000和7500 ppm）使用，而0 ppm是对照。该研究包括三种介质类型（河砂，松树皮，泥炭和珍珠岩的比例为1：1的混合物）。实验以3×4因子布局安排，重复3次“随机完整块设计”。分析了survival插成活率，根长和根数，枝长和根数。对于所有测量参数，IBA浓度与培养基之间没有相互作用（P> 0.001）。结果表明，IBA的最佳浓度为5000 ppm，超过此浓度对除根部长度以外的所有参数均具有抑制作用。培养基类型影响存活率和枝条数，其中松树皮最高，但不影响根数，根长和枝条数。

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