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All Journal Jurnal Penelitian Hasil Hutan Journal of Degraded and Mining Lands Management Indonesian Journal of Forestry Research
Endah Suhaendah
Balai Penelitian Teknologi Agroforestry Jl. Raya Ciamis -Banjar Km. 11, Ciamis 46201
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management

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PENGAWETAN KAYU TISUK (Hibiscus macrophyllus Roxb.) MELALUI RENDAMAN DINGIN DENGAN BAHAN PENGAWET BORIC ACID EQUIVALENT Suhaendah, Endah; Siarudin, M
Jurnal Penelitian Hasil Hutan Vol 32, No 2 (2014): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Litbang Keteknikan Kehutanan dan Pengolahan Hasil Hutan

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Abstract

Tisuk (Hibiscus macrophyllus Roxb.) adalah salah satu jenis tanaman cepat tumbuh yang banyak dikembangkan di hutan rakyat, terutama di Pulau Jawa. Salah satu kelemahan jenis ini adalah tingkat keawetannya yang rendah (kelas awet III/IV). Dalam rangka meningkatkan masa pakai kayu tisuk, penelitian mengenai pengawetan kayu tisuk dengan larutan Boric Acid Equivalent (BAE) melalui perendaman dingin telah dilakukan. Sampel kayu tisuk berasal dari hutan rakyat di Desa Sukamulih, Kecamatan Sariwangi, Kabupaten Tasikmalaya. Perlakuan yang diterapkan adalah tebal kayu (2,5 cm, 5 cm, 7,5 cm dan 10 cm), immersion time (3 hari, 5 hari dan 7 hari), dan konsentrasi bahan pengawet (5 %dan 10 %). Parameter yang diamati adalah retensi dan penetrasi bahan pengawet. Hasil penelitian menunjuk-kan bahwa retensi bahan pengawet berbeda nyata pada perlakuan tebal kayu tetapi tidak berbeda nyata pada kedua perlakuan lainnya. Sementara, tingkat penetrasi bahan pengawet tidak berbeda nyata pada semua perlakuan. Retensi dan penetrasi bahan pengawet menunjukkan nilai yang memenuhi persyaratan SNI. Berdasarkan analisis ini, pengawetan kayu tisuk yang disarankan menggunakan BAE adalah konsentrasi bahan pengawet 5 % dengan waktu perendaman 3 hari pada ketebalan 2,5 cm, 5 cm, 7,5 cm dan 10 cm.
DIVERSITY OF SOIL MACRO FAUNA AND ITS ROLE ON SOIL FERTILITY IN MANGLID AGROFORESTRY Hani, Aditya; Suhaendah, Endah
Indonesian Journal of Forestry Research Vol. 6 No. 1 (2019): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2019.6.1.61-68

Abstract

Soil macro fauna is one of the bio indicators in determining the quality of the land. The total soil macro fauna is influenced by the climatice condition and land utilization pattern. Agroforestry is one of type land utilization that is expected to improve the soil fertility. Land utilization changing from monoculture into agroforestry is predicted to influence the soils macro fauna. This study is aims to find out the population of soil macro fauna before and after applying manglid agroforestry. The research was conducted in Cukangkawung, Tasikmalaya District, West Java Province. Sample of macro fauna was taken from non-productive land of tea plantations and one year after the land was planted by manglid + corn + peanut by using agroforestry. Samples were taken in Feb-March 2015 and once more in Feb-March 2016. The observation land area is 1 hectare that is divided into 1 m x 1 m - 16 observation plots that was placed randomly. In each plot, a hole of 30 cm in depth was made and the dug out soil was placed on the plastic container. The collected macro fauna was counted and placed into a bottle that was filled with 70% alcohol. The macro fauna identification was conducted in LIPI zoology laboratory. The research shows that the diversity indexes for Shanon and Margalef on manglid agroforestry are higher than on the ex tea land.
Evaluation of early growth and aluminum tolerance in Leucaena leucocephala (Lam.) de Wit seedlings under acidic conditions as a recommendation for post-coal mining land rehabilitation Salim, Mohammad Agus; Sudrajat, Dede J.; Nugroho, Aditya; Indriani, Fitri; Rustam, Evayusvita; Maharani, Dewi; Rosdayanti, Henti; Wawangningrum, Hary; Efendi, Muhammad; Suhaendah, Endah; Mulyana, Ade Nendi; Wahyudi, Imam; Setyaningsih, Luluk; Budi, Sri Wilarso
Journal of Degraded and Mining Lands Management Vol. 13 No. 2 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.132.9979

Abstract

One of the problems with acidic soil is its high aluminum (Al) content, which can cause toxicity to plants. this study was conducted to evaluate the preliminary growth and tolerance of L. leucocephala seedlings to Al exposure. This study used a completely randomized design (CRD) with one factor, namely Al concentration, consisting of 5 levels (0, 2, 4, 6, and 8 mM). The evaluation of seedling growth and tolerance assessed included: height, root length, dry weight of roots and shoots, tolerance index, SPAD (Soil Plant Analysis Development) chlorophyll, and photosynthesis rate. The results showed that Al exposure reduced all growth parameters (height, root length, dry weight of roots and shoots) of L. leucocephala seedlings. The tolerance index of L. leucocephala seedlings also decreased significantly (up to 43.68%) with increasing Al concentration. Meanwhile, chlorophyll and photosynthesis rate parameters increased with Al exposure of 2-4 mM, but decreased with higher Al exposure (6-8 mM). The threshold value or sensitivity of L. leucocephala seedlings to Al exposure was less than two mM. The L. leucocephala species can also serve as an alternative for land rehabilitation with high Al content as post-coal mining land.
Co-Authors Aditya Hani Aditya Nugroho Dede J. Sudrajat Evayusvita Rustam, Evayusvita Fitri Indriani Henti Rosdayanti, Henti Imam Wahyudi Indrawan, Imam Wahyudi Luluk Setyaningsih M. Siarudin Maharani, Dewi Muhammad Efendi, Muhammad Mulyana, Ade Nendi Salim, Mohammad Agus Sri Wilarso Budi Wawangningrum, Hary