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Distribution of Salacca zalacca ‘Kelapa’ Widodo, Pudji; Herawati, Wiwik; Sukarsa, Sukarsa
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 36, No 1 (2019)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2019.36.1.634

Abstract

Salak or snake fruit (Salacca zalacca) or salak is a kind of popular fruit originated from Sumatra and Java. There are many cultivars including both the wild and the hybrid ones. One of many cultivars namely S. zalacca ‘Kelapa’ was observed for their distribution.  This cultivar is considered to be unusual because it has only a few spines on its petioles. This cultivar was previously found only in Karangasem Bali especially in the subdistrict of Sibetan, Selat, and Rendang and in Batujajar in West Java.  A new record was found in Banjarnegara especially in Sokanandi Village. A map of the distribution of this cultivar is presented. 
PEMANTAUAN KEANEKARAGAMAN ZINGIBERACEAE DI DAS JENGOK, BANJARAN, KRANJI, DAN PELUS WILAYAH PURWOKERTO Widodo, Pudji; Widiawati, Yayu; Sukarsa, Sukarsa
AGROLAND Vol 13, No 3 (2006)
Publisher : AGROLAND

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Abstract

An investigation on diversity monitoring of ginger family (Zingiberaceae) was carried out on Jengok, Banjaran, Kranji, and Pelus riverbanks in Purwokerto. This study required conventional surveys and repeated measurements to identify and to evaluate changes. Twelve permanent plots were established in 1990 covering the north, central, and south parts of the rivers. The ginger vegetation in 2005 was compared with data taken in 1990, 1997, and 2003. The result of this study showed that the number of spesies in most of the bank reached the peak in 2003 then decreased again in 2005.
Syzygium samarangense ‘Unsoed’ a New Cultivar from Central Java Widodo, Pudji
Proceeding International Conference on Global Resource Conservation Vol 4, No 1: Proceeding of 4th ICGRC 2013
Publisher : Proceeding International Conference on Global Resource Conservation

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Abstract

Jambu semarang, or  java apple,  wax apple, water apple,  bell fruit,  wax jambu, (Syzygium samarangense)  is one of the most popular fruits in Indonesia.  It comprises a lot of cultivars which show a lot of variations in shapes, colors and tastes.  The uses of these cultivars vary such as for fresh fruits, salads, and jelly. Farmers and plant breeders expect that they can produce better java apples in the future.  A new cultivar, S. samarangense ’Unsoed’  is proposed.   It was found in at least three locations in Purwokerto and Kebumen.  The special characteristics of this cultivar are the nearly globose fruits, thin fruit flesh only 1-3 mm thick, and containing up to ten seeds. Key words: Cultivar, Myrtaceae, semarang apple, Syzygium samarangense
RULE-BASED CLASSIFIER UNTUK MENDETEKSI PENYAKIT LIVER Widodo, Pudji
Bianglala Informatika Vol 2, No 1 (2014): Bianglala Informatika 2014
Publisher : Universitas Bina Sarana Informatika

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Abstract

Hati merupakan organ yang paling besar dan penting bagi tubuh kita. Kita tidak bisa hidup tanpa hati. Penyakit hati tidak mudah ditemukan pada stadium awal. Penanganan pasien penyakit hati pada stadium awal akan memperpanjang usia pasien. Untuk mendeteksi penyakit hati, pasien harus melakukan tes darah. Program klasifikasi otomatis bisa mengurangi beban kerja dokter. Makalah ini menyajikan penerapan algoritma berbasis rule untuk mendeteksi penyakit hati berdasarakan hasil tes darah. Dataset yang digunakan pada penelitian ini adalah dataset Indian Liver Patient Dataset (ILPD) yang diambil dari UCI Machine Learning Repository. Algoritma berbasis rule yang digunakan pada penelitian ini adalah ZeroR, OneR, RIPPER dan C4.5. Algoritma tersebut dibandingkan berdasarkan empat kriteria, yaitu accuracy, presition, sensitivity dan spesificity. Berdasarkan hasil perbandingan, diperoleh algoritma berbasis rule terbaik dalam mendeteksi penyakit hati.                   
INVENTARISASI PALEM DI HUTAN BODOGOL, TAMAN NASIONAL GUNUNG GEDE PANGRANGO Alandana, Imay M; Rustiami, Himmah; Widodo, Pudji
Buletin Kebun Raya Vol 18, No 2 (2015): Buletin Kebun Raya Vol. 18 (2) July 2015
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Pada kegiatan inventarisasi palem di Hutan Bodogol, Taman Nasional Gunung Gede Pangrango (TNGP) telah menemukan sebanyak 19 jenis palem yang terdiri atas sembilan marga. Kesembilan belas jenis tersebut adalah dua jenis Arenga, tiga jenis Calamus, dua jenis Caryota, lima jenis Daemonorops, satu jenis Korthalsia, satu jenis Nenga, dua jenis Pinanga, satu jenis Plectocomia dan dua jenis Salacca, dimana satu jenis salak masih belum dapat diidentifikasi. Kajian lebih lanjut diperlukan untuk mengetahui status taksonominya. Kunci identifikasi, sinopsis tiap jenis dan peta persebarannya di Hutan Bodogol disajikan dalam naskah ini.  Adapun status konservasi disertakan dalam tiap jenis.
New nomenclature in Syzygium (Myrtaceae) from Indonesia and its vicinities Widodo, Pudji
REINWARDTIA Vol 13, No 3 (2012): Vol. 13 No. 3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v13i3.451

Abstract

Current generic concepts in Myrtaceae suggest that nearly all Old World taxa originally described in Eugenia L. and Jambosa Adans. should be accommodated within Syzygium P. Br. ex Gaertn. Six new combinations and a new name in Syzygium are proposed. Complete synonymy and typifications are given.
Keragaman dan Produktivitas Hijauan Pakan Indigenous pada Berbagai Tingkat Kerapatan Vegetasi di Pegunungan Kapur Gombong Selatan Sarwanto, Doso; Tuswati, Sari Eko; Widodo, Pudji
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 3 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.3.337

Abstract

Research aims to conduct diversity and productivity of indigenous forage in different levels vegetation density in Gombong-Selatan karst mountain. We used survey method to explain the research by sampled three location of vegetation density, they are moderate, high, and very high. In each location vegetation density we take five parts by using random sampling. Then, a descriptive technique is used to analyzed the indigenous forage diversity data result whereas variance analysis is used to analyzed the productivity.The results shows the highest diversity of indigenous forage in Gombong-Selatan karst mountain is in moderate vegetation density area where has 36 species, high vegetation density has 20 species, and the highest vegetation density has 16 species. Eragrotis amabillis, Oplismenus burmannii, Centrosema pubescens, Ageratum conyzoides and Urena lobata are the dominant indegenous forage species in Gombong-Selatan karst mountain. The variances result shows that indigenous forage productivity in Gombong Selatan karst mountain is influenced by vegetation density. We found that lowest productivity is in high vegetation density.
Keanekaragaman Kultivar Salak Pondoh di Banjarnegara Annisaurrohmah, Annisaurrohmah; Herawati, Wiwik; Widodo, Pudji
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2014.31.2.216

Abstract

Snake fruit (Salacca zalacca (Gaertner) Voss) is originated from Indonesia. The aim of this study was to find out the cultivar diversity of salak pondoh in Banjarnegara, and to determine the similarity relatiinshipa between cultivars pondoh in Banjarnegara. The method used was exploratory survey with purposive random sampling. Morphological characteristics observed included 50 characters in the form of stems, leaves, flowers, fruits, seeds, and spines. Samples were taken at 5 districts namely Madukara, Banjarmangu, Sigaluh, Pagentan and Banjarnegara. The result of this research showed that there were six cultivars of Salacca zalacca namely cultivars ‘Pondoh Nglumut’, ‘Linting’, ‘Ketek’, ‘Manggala’, ‘Madu’, and ‘Super’. Whereas in S. zalacca Pondoh Ketek has various number of seeds in the fruit. The most closely related cultivars were ‘Pondoh Nglumut’ and ‘Super’. The most distinct cultivars were S. zalacca ‘Manggala’ and ‘Ketek’.
Variasi Morfologi Bambu Tali [Gigantochloa apus (Schult.F.) Kurz.] pada berbagai ketinggian tempat di Sub Daerah Aliran Sungai Pelus Hakim, Tria Fauzi Prabandani; Widodo, Pudji; Sudiana, Eming
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 1 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.1.294

Abstract

A study on the morphological variation of tali bamboo [Gigantochloa apus (Schult.f.) Kurz] has been conducted at various altitudes of Sub Watershed Pelus Banyumas, Central Java. This study was aimed at determining the morphological variations in relation to altitudes above sea levels. The method used was survey with stratified sampling.  The variables measured included culm diameter, culm internode length, culm sheath length and width, ovate-triangular blade length and width, leaf blade length and width, stem color and hairs, and altitude. The results of this study indicated that the altitudinal difference effect some morphological characteristics of tali bamboos such as: 1) green young seedling with black hairs found at 200-299 m and 300-399 m asl. 2) morphological variations are effected by altitude. Tali bamboo grows optimally at the altitude of 400 to 499 m asl. The results of regression analysis showed that the altitude has a relatively close correlation with somes of morphological character of tali bamboo.
ANALISIS VEGETASI KAWASAN KARST GOMBONG SELATAN KEBUMEN JAWA TENGAH Suhendar, Arfiani Salam; Yani, Edy; Widodo, Pudji
Scripta Biologica Vol 5, No 1 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (771.8 KB) | DOI: 10.20884/1.sb.2018.5.1.639

Abstract

Karst area is a well-developed porosity landscape with a specific condition as a result of soluble rock development through a process of karstification. The karst soil has low nutrients, but high calcium and magnesium content. Due to its unique environmental characteristics, karst vegetation differs from other areas. This study aimed to determine the community structure and species composition of vegetation in the karst area of Gombong Selatan and to compare the environmental factors affecting the plant of the karst area. This study was conducted in the border of Watukelir and Pakuran Villages. The method was a survey with sampling quadrat sizes used of 10 x 10 m for trees, 5 x 5 m for saplings, and 2 x 2 m for understorey vegetation. The variables observed were plant species and number of trees, saplings, and understorey. The environmental factors measured were air temperature, humidity, soil pH, and soil moisture. Data were analyzed using Importance Value Index (IVI), Shannon-Wienner Diversity Index (H’), Evenness Index (E), and Similarity Index (IS). The results showed there were 22 species of understoreys, five species of saplings, and seven species of trees. The understoreys were found dominated by Axonopus compressus dan Cyperus rotundus, in the other category, Tectona grandis and Albizia chinensis were dominated saplings and trees. Humidity and soil moisture were suggested the important environmental factors for plant diversity in karst area of Gombong Selatan