November 02, 2025 | International Journal of Horticultural Science and Technology |
The study conducted by Universitas Negeri Semarang, Indonesia, examined how scion diameter and benzylaminopurine (BAP) concentration influence grafting success in superior local durian (Durio zibethinus). Large-scale durian seedling production relies heavily on grafting, but collecting suitable scion material is difficult because elite local trees often have thin branches located high in the canopy. Identifying optimal scion characteristics and growth regulator treatments is therefore important for improving propagation efficiency.
Using a completely randomized factorial design, the researchers tested three scion diameters (2, 3, and 4 mm) and four BAP concentrations (0, 75, 125, and 250 ppm), resulting in 12 treatment combinations. Parameters evaluated included bud break time, number of live shoots, leaf formation, and grafting and acclimatization success rates. Two-way ANOVA indicated that scion diameter and BAP concentration each had significant effects on bud break time and leaf number but did not significantly influence the number of live shoots. No interaction effects were detected.
Overall, the study found that scion diameters of 3–4 mm, combined with BAP concentrations of 75–125 ppm, yielded the most favorable growth responses. These results provide practical guidance for improving grafting success in superior local durian propagation.
