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  3. Noviyanti

Influence of Seed Treatment and Wood Vinegar Application on Podocarpus blumei Seedling Development

Ayu Noviyanti, Diana Prameswari

Abstract


Podocarpus blumei is a large tree species widely utilized for daily needs but is characterized by a slow growth rate. To sustain its population, effective propagation methods are required, particularly through seed germination. This study aimed to evaluate germination and seedling development techniques by applying dormancy-breaking treatments, combining different growing media, and using wood vinegar to obtain optimal seedling quality. The results showed that P. blumei seeds contained 40.14% moisture, classifying them as recalcitrant. Scarification treatment yielded the highest germination performance, with a germination rate of 90%, maximum growth potential of 92%, and a germination period of 51 days. The most effective growing medium was a mixture of soil, cocopeat, and husk charcoal (M1). Furthermore, the application of 0.2% wood vinegar promoted optimal seedling growth and biomass, producing seedlings with an average height of 5.05 cm, stem diameter of 0.8 mm, and 19 leaves. Biomass values obtained included BBA 5.12 g, BBP 7.9 g, BKP 2.16 g, BBT 10.02 g, and BKT 2.77 g. The highest BKA value (0.63 g) was observed at 0.3% concentration, while the best NPA (3.93) and IMB (3.36) values were achieved at 0.1% concentration. These findings highlight the effectiveness of integrating scarification, appropriate growing media, and optimized wood vinegar concentrations to enhance the germination and growth of P. blumei seedlings.

Keywords


podocarpus blumei; germination; seedling; wood vinegar; breaking dormancy

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DOI: 10.33751/jsi.v8i1.12815

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