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All Journal Buletin Kebun Raya BERITA BIOLOGI JURNAL BIOLOGI INDONESIA Biosaintifika: Journal of Biology & Biology Education Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
DIDIK WIDYATMOKO
Pusat Konservasi Tumbuhan Kebun Raya Bogor, Lembaga Ilmu Pengetahuan Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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KONSERVASI EX SITU MANGIFERA CASTURI KOSTERM. BERBASIS MASYARAKAT: STUDI KASUS DI KABUPATEN INDRAGIRI HILIR, PROVINSI RIAU Fakhrozi, Irzal; Hikmat, Agus; Widyatmoko, Didik
JURNAL BIOLOGI INDONESIA Vol 9, No 1 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i1.155

Abstract

Mangifera casturi Kosterm. (Anacardiaceae) merupakan spesies yang dinyatakan punah di alam liar. Spesies ini endemikdi pulau Kalimantan. Saat ini, Mangifera casturi telah dibudidayakan di luar sebaran alaminya, terutama diKabupaten Indragiri Hilir Provinsi Riau, Sumatera. Penelitian dilakukan di dua kecamatan di Kabupaten IndragiriHilir, yaitu Kecamatan Gaung Anak Serka (GAS) dan Kecamatan Gaung. Sebanyak 1.315 individu M. casturiditemukan dalam penelitian yang dilakukan. Keberhasilan konservasi ex situ M. casturi di daerah ini didukung olehsetidaknya tiga stimulus: alami, manfaat, dan stimulus religius. Namun faktor internal dan eksternal milik masyarakatsetempat juga mempengaruhi secara signifikan. Di Kecamatan GAS, konservasi ex situ M. casturi terutamadidukung oleh stimulus manfaat sementara di Kecamatan Gaung upaya konservasi ex situ didukung oleh stimulusreligius. Analisa komponen utama dilakukan untuk menentukan kemungkinan hubungan antara konservasi ex situM. casturi dan variabel pendukung dalam masyarakat. Di Kecamatan GAS, yang upaya konservasi ex situ M. casturisecara signifikan didukung oleh ukuran populasi, panen dan pemasaran serta kegiatan pra tanam. Di KecamatanGaung, konservasi ex situ dari M. casturi tidak hanya didukung oleh ukuran populasi, panen dan kegiatan pasar, tetapijuga oleh kegiatan pra tanam, status dan luas lahan.Kata Kunci: Indragiri Hilir, Konservasi ex situ, Mangifera casturi, Punah di alam liar
THE EFFECTS OF NPK FERTILIZER, MANURE AND VESICULAR ARBUSCULAR MYCORRHIZA (VAM) ON THE GROWTH, BIOMASS AND ARTEMISININ CONTENT OF ARTEMISIA ANNUA L. Rahman, Wiguna; Widyatmoko, Didik; Lelono, Arthur A.
JURNAL BIOLOGI INDONESIA Vol 10, No 2 (2014): Jurnal Biologi Indonesia
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v10i2.2107

Abstract

Most artemisinin is extracted from an annual herb Artemisia annua L. but the cultivation in Indonesia is limited bythe low yield of the artemisin incontent that is not economically beneficial to industry. Improvement on cultivatedvarieties and cultivation techniques is therefore needed. This work aims to improve the cultivation techniques byevaluating the application effects of NPK, manure, and VAM on the artemisinin yield of A. annua. The experimentwas set using a Split Split Plot Design involving three factors. First factor was the application of four dosages ofNPK (0 kg ha-1 as a control; 40:40:40 kg ha-1; 80:80:80 kg ha-1; and 120:120:120 kg ha-1). Second factor wasmanure addition (using 0 ton ha-1 and 150 tons ha-1). Third factor wasthe application of mycorrhiza (0 g plant-1and15 g plant-1). The experiment was divided into three different groups based on the seed sources (Bandung, Cibodas,and Tawangmangu plants) using similar treatments. The results showed that the plant growth (Relative GrowthRates/RGR of plant heights and number of branches), leaf yield, and total plant biomass were much affected byNPK. The addition of manure has less significant effect on those parameters. Only VAM seems to influence theartemisinin content. The highest artemisinin yield (5 kg ha-1) was relatively low when compared to the productionin USA, China, and Brazil. However the result shows that a low fertilizer input of 40:40:40 kg NPK ha-1 and aninoculation of VAM were recommended for cultivating A. annua resulting a significantly high yield of artemisinin.Keywords: Artemisia annua L., Artemisinin content, NPK, Manure, VAM, Plant Growth, Biomass
Plant Species Diversity and Degree of Homogeneity after the 2010 Eruption of Mount Merapi, Indonesia Afrianto, Whisnu Febry; Hikmat, Agus; Widyatmoko, Didik
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 2 (2020): August 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i2.23525

Abstract

The eruption in 2010 of Merapi Mount changed the diversity of plant species. The objective of this research was to investigate the diversity of plant species on Mount Merapi National Park (MMNP). The sampling area was divided into three different levels of damage (heavy, medium, and mirror). The research was conducted by using line-transect and quadrat method.  We were conducted using line-transect and quadrat method. The research showed that Acacia decurrens has the highest Important Value Index (IVI) at the heavy damage area of Cangkringan Resort (CR) and Kemalang Resort (KR) as well as in mirror damage area of Selo Resort (SR). The most important species at medium damage area of Dukun Resort (DR) were Albizia lopantha and Pinus merkusii. The pioneer species at Non-Cover Area (NCA) among others were Trema cannabina, Pityrogramma calomelanos, Imperata cylindrical, Buddleja asiatica, Anaphalis javanica. Eupatorium riparium were the most important species of herb in all four locations based on SIMPER, but it was not dominant in NCA. The homogeneity of plant in Cangkringan Resort and Selo Resort (C < D < E) were normally distributed, whereas NCA, DR, and KR (E ≥ D) were homogeneous. Analysis of non-metric multidimensional scaling and value of ANOSIM (RANOSIM =0.69; p = 0.0001) demonstrated that all site locations have significance differences. This research was not only focusing on survey of vegetation diversity, but also frequency class distribution. Through this study of frequency of species provides a database for conservation biodiversity and restoration program.
Strategi dan Inovasi Konservasi Tumbuhan Indonesia untuk Pemanfaatan Secara Berkelanjutan Widyatmoko, Didik
Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) 2019: Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (820.499 KB)

Abstract

Indonesia merupakan salah satu negara dengan keanekaragaman hayati terbesar di dunia. Sekitar 89.326 spesies tumbuhan berspora termasuk paku-pakuan dan 19.232 spesies tumbuhan berbunga (Spermatophyta) tumbuh di kawasan ini (KPPN/Bappenas, 2016), Tabel 1. Jika keanekaragaman hayati di laut dimasukkan, Indonesia diperkirakan menjadi kawasan paling kaya di dunia (Moosa & Suharsono, 1997; Suharsono, 1998). Jumlah total tumbuhan berbunga dunia yang telah berhasil diidentifikasi mencapai 369.000 spesies (Willis, 2017). Sekitar 2.000 spesies tumbuhan baru berhasil diidentifikasi setiap tahunnya di seluruh dunia (Widyatmoko, 2018). Untuk kelompok tumbuhan berspora, saat ini lebih dari 1,5 juta spesies di dunia telah berhasil diidentifikasi.
Co-Authors Abywijaya, Ilham Kurnia Abywijaya, Ilham Kurnia Afrianto, Whisnu Febry Afrianto, Whisnu Febry Agus Hikmat Dede Setiadi Dodo Dodo, Dodo Eni Nuraeni Irzal Fakhrozi, Irzal Lelono, Arthur A. Lelono, Arthur A. Siti Sofiah Tinia Leyli Shofia Ahmad, Tinia Leyli Shofia Wiguna Rahman Yayan Wahyu Candra Kusuma