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Alex Hartana
Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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Komunitas Mikrofungi pada Lapisan Horizon Serasah Acacia mangium Samingan Samingan; Lisdar I. Sudirman; Dede Setiadi; Alex Hartana; Budi Tjahjono
Jurnal Agrista Vol 12, No 2 (2008): Volume 12 Nomor 2 Agustus 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Microfungal Community on Litter Horizon Layer of Acacia mangiumABSTRACT. Fungal diversity on litter horizon layer of Acacia mangium were investigated to examined fungal species and fungal community on each litter horizon layer, and also to examined relationship between organic content of litter and fungal community. Twenty two species were isolated from three litter horizon layer with dilution method. Total fungal population on five years old A. mangium standing was higher than two years old, whereas on logging former area was low. Total fungal population on standing two and five years old were highest on L layer follow by F and H layer, but on logging former area were highest F layer followed by L and H layer. Aspergillus was dominate on H layer in almost of sampling collection area, beside that Aspergillus and Penicillium were found also on L and F layer. Generally L and F layer dominated by Sp7, Sp5, Sp20, and Sp22. The highest diversity indice on two years old standing was found at different layer.; L and H on health and Genoderma attacked standing, whereas on standing five years old, highest diversity indices was found at L layer, but on logging former area highest diversity indices was found at H layer.
VARIASI KARAKTER MORFOLOGI DAN AGRONOMI BUAH KAPULASAN (Nephelium ramboutan-ake) DARI BOGOR, JAWA BARAT Nina Ratna Djuita; Tatik Chikmawati; Alex Hartana
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 11, No 1 (2014): Prosiding Seminar Nasional XI Biologi
Publisher : Universitas Sebelas Maret

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Abstract- Kapulasan is a unique tropical fruit.  Morphological and agronomical variation of the fruit has not been known.  The aim of this study was to obtain some variants of fruit that have superior characteristics such as hight fruit weight, sweet and thick aril, and fleaking aril.   Thirty fruit variants was observed their morphological and agronomical characters based on the descriptor of rambutan.  The results showed that the average of fruit weight is 50.4 g, a collection from Gunung Batu village has the highest fruit weight (103.5 g), while a collection from Makam Bodas village has the lowest fruit weight (23.1 g).  The oBrix variation of kapulasan fruit ranged from 18.4 - 29.6, while the content of vitamin C ranged 3.5 - 5.6 mg/100g.  There are four variants with superior fruit. Keywords:kapulasan, Nephelium ramboutan-ake, morphological and agronomical character    
VARIASI MORFOLOGI DAN PENGELOMPOKAN KAWISTA (LIMONIA ACIDISSIMA L.) DI JAWA DAN KEPULAUAN SUNDA KECIL Zulfa Nurdiana; Alex Hartana; Nunik Sri Ariyanti
Floribunda Vol. 5 No. 4 (2016)
Publisher : PTTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2764.305 KB) | DOI: 10.32556/floribunda.v5i4.2016.15

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Zulfa Nurdiana, Nunik S. Ariyanti & Alex Hartana. 2016. Morphological Variation and Clustering of Kawista (Limonia acidissima L.) in Java and Lesser Sunda Islands. Floribunda 5(4): 144–156. — Kawista (Limonia acidissima L.) has rounded, thick and tough skinned, and specific flavor of fruits. Kawista naturally grow and adapt to dry regions in India, Sri Lanka, Myanmar, and Indo-China. This species was introduced, naturalized, and cultivated throughout Southeast Asia including: Myanmar, Thailand, Malaysia, Vietnam, Cambodia, Laos and Indonesia. The purpose of this study was to explore the morphological variation and clustering of kawista in Java and Lesser Sunda Islands. The samples were obtained using exploration method in: Jakarta, Karawang, Rembang, Situbondo, Jembrana, and Bima. Morphological characters of stems, leaves, flowers, fruits, and seeds were use to observe the 29 samples collected. Unweighted Pair Group Method with Arithmatic Average (UPGMA) was used with NTSYS software program 2.11a version to cluster the samples based on the morphological characters. The phenetic analysis resulted kawista sampels clustered into four groups. Identification key for the four kawista groups was constructed.Keywords: Java, kawista, Lesser Sunda Islands, morphology, phenetic similarity.Zulfa Nurdiana, Nunik S. Ariyanti & Alex Hartana. 2016. Variasi Morfologi dan Pengelompokan Kawista (Limonia acidissima L.) di Jawa dan Kepulauan Sunda Kecil. Floribunda 5(4): 144–156. — Kawista (Limonia acidissima L.) memiliki buah berbentuk bulat, berkulit tebal, keras serta beraroma khas. Kawista secara alami tumbuh dan beradaptasi di daerah kering India, Sri Lanka, Myanmar, dan Indo-Cina. Jenis ini juga telah diintroduksi, dinaturalisasi, dan dibudidayakan di Asia Tenggara yang meliputi Myanmar, Thailand, Malaysia, Vietnam, Kamboja, Laos, dan Indonesia. Tujuan penelitian ini untuk mengeksplorasi variasi morfologi dan mengelompokkan kawista yang terdapat di pulau Jawa dan Kepulauan Sunda Kecil. Sampel tanaman kawista diperoleh dengan metode jelajah di Jakarta, Karawang, Rembang, Situbondo, Jembrana, dan Bima. Ciri morfologi batang, daun,bunga, buah, dan biji kawista digunakan untuk mengamati 29 sampel. Unweighted Pair Group Method with Arithmatic Average (UPGMA) pada program NTSYS versi 2.11a digunakan untuk mengelompokkan sampel kawista berdasarkan ciri morfologi. Analisis fenetik ini menghasilkan empat kelompok sampel kawista. Kunci identifikasi disusun untuk keempat kelompok tersebut.Kata kunci: Jawa, kawista, Kepulauan Sunda Kecil, morfologi,  kemiripan fenetik.
Co-Authors Budi Tjahjono Dede Setiadi Lisdar I. Sudirman Nina Ratna Djuita NUNIK SRI ARIYANTI Samingan Samingan TATIK CHIKMAWATI Zulfa Nurdiana