PENGARUH PERLAKUAN BENIH Podocarpus blumei DAN CUKA KAYU PADA BIBIT Podocarpus blumei

Abstract

Podocarpus blumei is a large tree for daily purposes and has a slow growth rate too. Plant propagation is required for P.blumei because seed generation can balance the population. This research aimed to determine germination and seedling germination techniques by combining seed-breaking dormancy and mix of different media and use of wood vinegar to produce the best seedlings. The results indicated that the moisture content of the P.blumei seeds is 40,14% which categorizes them as recalcitrant. Scarification proved to be the most effective treatment for a germination rate of 90%, maximum growth potential of 92%, and germination periode of 51 days with the soil, cocopeat, and husk charcoal were found to be effective growing media (M1). A concentration of 0.2% wood vinegar may be most effective for seedling growth and biomass. The resulted is 0,2% consentration of wood vinegar may produce the height 5.05 cm, diameter 0.8 mm with 19 leaves, and biomass values of BBA 5.12 g, BBP 7.9 g, BKP 2.16 g, BBT 10.02 g, and BKT 2.77 g, BKA has the highest concentration at 0.3% with 0.63 g and the best values for NPA and IMB were achieved at a concentration of 0.1%, with 3.93 and 3.36.

 Keywords: Podocarpus blumei, germination, seedling, wood vinegar, breaking dormancy