The response of Almaciga (Agathis philippinensis Warb.) to cutting origins and different levels of Indolebutyric Acid (IBA) treatment were investigated in a CRD 3 x 5 factorial experiment using non-mist propagators. It also determined the best cutting origins and the most effective and economical levels of IBA that enhanced rooting and survival of Almaciga stem cuttings. Cutting origins significantly increased the percent of survival and percent of rooting, but not the number of adventitious roots and length of shoots that developed. The highest percent of survival (63.00%) and percent of rooting (65.50%) were observed on cuttings taken from the middle cuttings, while the lowest were exhibited by the cuttings emerging from the bottom portion of the stem. However, top cuttings were found comparable to cuttings taken from the middle portion of the stem. Application of different levels of IBA treatments did not influence the different parameters investigated in the study, though the highest percent of survival (63.33%) and percent of rooting (55%) were exhibited by cuttings without any treatment. Generally, the findings implies that Almaciga can be propagated by cuttings taken from the top and middle portion of the order. Cuttings can effectively be induced to root and survive and can be economically mass-propagated from quality stocks even without IBA treatment.
ISSN 2945-4921 (Online)
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