Rooting Response and Subsequent Growth of Selected Citrus Sp. to Application of Different Hormones

Abstract

The study analyzed the rooting responses of selected citrus species using stem cuttings. Different rooting hormones, including IBA, IAA, NAA, Hormex, and Saredex, were applied to cuttings at the recommended rate. Six morphological characteristics were measured and detected after 60 days. Interaction effects between citrus species and rooting hormones in all parameters were not significant. Still, hormones and citrus mean had significant effects in all parameters except for days to shoot, number of shoots, number of leaves, and number of roots. The rooting performance of citrus species improved when NAA, IAA, IBA, and Hormex hormones were used. The results of the study clearly showed that the use of any rooting hormones, especially Naphthalene Acetic Acid (NAA), could enhance the rooting ability of selected citrus species (Calamansi, Calamandarin, and Dalandan) as early as 60 days. Additionally, the application of nitrogenous fertilizer could improve the growth of potted, rooted citrus cuttings in nursery operations.