Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal JURNAL PERBENIHAN TANAMAN HUTAN Indonesian Journal of Forestry Research
Jafred E. Halawane
Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manado
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Effect of Shade and NPK Fertilizer on the Growth of Shorea assamica Dyer in the Nursery Arif Irawan; Jafred E. Halawane
Jurnal Perbenihan Tanaman Hutan Vol 4, No 2 (2016): Jurnal Perbenihan Tanaman Hutan
Publisher : Forest Tree Seed Technology Research & Development Center (FTSTRDC)/ Balai Penelitian dan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.161 KB) | DOI: 10.20886/bptpth.2016.4.2.81-93

Abstract

Shorea assamica Dyer is one of endangered species in the North Sulawesi. The species has high economic value, however information about technique of silviculture and its conservation are very limited. The research aims to determine the effect of shade and the use of NPK (15:15:15) fertilizer on growth rate of S.assamica in the nursery. The design was applied in this reserach according to randomized complete design with split plot design. The main plot was shade level and the sub plot was NPK fertilizer level. The treatments were covering four levels of NPK fertilizer (0; 0.25; 0.50 and 0.75 g/seedling) and three levels of shade (light, medium, and heavy). The results showed that the best combination of treatments for height and diameter growth, seedling dry weight, and seedling quality index of S. assamica on 6 months age was NPK fertilizer dosage of 0.5 g/seedling in moderate shade.
STORAGE TECHNIQUES OF CEMPAKA WASIAN (Magnolia tsiampaca (Miq.) Dandy) SEEDS Arif Irawan; Hanif Nurul Hidayah; Julianus Kinho; Jafred E. Halawane
Indonesian Journal of Forestry Research Vol. 7 No. 2 (2020): Indonesian Journal of Forestry Research
Publisher : APTKLHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2020.7.2.113-120

Abstract

Cempaka wasian is a type of woody tree which has a substantial historical value associated with the local culture of the Minahasan people. The improvement of cempaka wasian plantation is essential due to their enormous importance and usage. This study aims to discover the impacts of duration, storage room, and containers used for the appropriate storage of cempaka wasian seeds. The design used in this study is entirely randomized design organized with a factorial pattern which consists of 3 factors; 1) storage duration, 2) storage room and 3) storage containers. Duration of storage was 2, 3, 4, and 5 months; meanwhile, storage rooms comprised of refrigerators, chambers, and air-conditioned room. Moreover, storing containers consisted of calico cloth, aluminium foils, and plastic bags. The study finding indicates that the seeds of cempaka wasian could still germinate if stored for five months by using plastics bags inside refrigerators. A significant provision of seeds and suitable timing are closely related to the proper seed storage techniques.
Co-Authors arif irawan Arif Irawan Hanif Nurul Hidayah Julianus Kinho