Abstract
In Brazil, pitaya has assumed relevant marketing status as a result of the fruit high demand and the low national production. However, pitaya cultivation needs technical studies. Thus, the present work aimed to evaluate the effect of algae extract and indolbutyric acid (IBA) on rooting of pitaya cuttings from species Hylocereus undatus and Hylocereus polyrhizus. Pitaya cuttings were treated with IBA, algae extract, the combination of IBA and algae extract, and the control. For H. undatus the best responses for root number, volume and mass were obtained from cuttings treated with algae extract and the combination of IBA and algae extract. For H. polyrhizus, the best responses for number of shoots, volume and root mass were obtained in cuttings treated with IBA, algae extract and the combination of IBA and algae extract. The algae extract (SprintAlga TS®) is promising as an alternative or complement to IBA.
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