Pine resin product optimization was carried out through various breeding activities, not only by developing a high-sap-producing clone selection but also by developing propagation techniques. Vegetative propagation on the superior genotyping provides a large genetic gain because of its wide variation ratio produced in one selection rotation. Vegetative propagation for Pinus mercusii is commonly done by air layering, shoot cutting, and cutting that produces callous (BAJOS). This study aims to determine the effect of various media and dosages of IBA on the number and length of pine air layering roots in West Banyumas. The plants aged two years from superior clones were air layered on the branch end using two different media, namely topsoil, and cocopeat. They sprayed with IBA solution on the chipped area at dosages of 0 ppm, 500 ppm, and 1000 ppm. The parameter observed is rooting percentages, number, and length of primer and secondary root. The pine air layer on the cocopeat medium performs significantly on rooting percentages compared to topsoil. Some primer roots on 0 ppm of IBA have the best performance compared to others. The 500 and 1000 ppm IBA cannot give significance to the independent variable.Optimalisasi produksi getah pinus dilakukan dengan berbagai kegiatan pemuliaan, selain pengembangan seleksi klon-klon penghasil getah tinggi, dilakukan pula pengembangan teknik perbanyakan pinus. Perbanyakan vegetatif pada genotip unggul menghasilkan genetik gain yang besar, karena rasio variasi yang luas dihasilkan dalam satu rotasi seleksi. Perbanyakan vegetatif untuk jenis pinus biasa dilakukan dengan stek pucuk berkalus (Bajos) dan cangkok.
Penelitian ini bertujuan untuk mengetahui pengaruh berbagai media dan dosis IBA pada jumlah dan panjang akar cangkok pinus di KPH Banyumas Barat. Tanaman pinus berumur 2 tahun dari klon-klon unggul dicangkok menggunakan 2 media berbeda yaitu topsoil dan cocopeat dan disemprot larutan IBA dengan dosis 0 ppm, 500 ppm dan 1000 ppm.
Cangkok pinus menggunakan media cocopeat menghasilkan persen berakar lebih tinggi dibandingkan pada media tanah, sedangkan dosis IBA secara nyata hanya mempengaruhi jumlah akar primer pada dosis 0 ppm.
Kata kunci: Pinus; cangkok; media; IBA; aka
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