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All Journal Proceeding International Conference on Global Resource Conservation Buletin Kebun Raya BERITA BIOLOGI
I Nyoman Lugrayasa
UPT Balai Konservasi Tumbuhan Kebun Raya "Eka Karya" Bali, LIPI Candikuning, Baturiti, Tabanan Bali 82191
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Health Professions Other

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STUDI ANGGREK EPIFIT PADA TIGA LOKASI DI KABUPATEN MALINAU, KALIMANTAN TIMUR Tirta, I Gede; Lugrayasa, I Nyoman; Irawati, Irawati
Buletin Kebun Raya Vol 13, No 1 (2010): Buletin Kebun Raya Vol. 13 (1) Januari 2010
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

A study on epiphytic orchids in three locations (Senturan Forest, Mount Sidi and Mount Jarang) in Malinau District showed that most epiphytic orchids were found in location with moderate light intensity rather than in low and high light intensities. Many orchids were found on parts of trees covered by thin mosses rather than on thick mosses. Three hundred and seventy one orchid specimens were collected from the three locations and at least 71 specimens were new collections to Eka Karya Botanic Garden, Bedugul.
STUDI ANGGREK EPIFIT PADA TIGA LOKASI DI KABUPATEN MALINAU, KALIMANTAN TIMUR Tirta, I Gede; Lugrayasa, I Nyoman; Irawati, Irawati
Buletin Kebun Raya Vol 13, No 1 (2010): Buletin Kebun Raya Vol. 13 (1) January 2010
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

A study on epiphytic orchids in three locations (Senturan Forest, Mount Sidi and Mount Jarang) in Malinau District showed that most epiphytic orchids were found in location with moderate light intensity rather than in low and high light intensities. Many orchids were found on parts of trees covered by thin mosses rather than on thick mosses. Three hundred and seventy one orchid specimens were collected from the three locations and at least 71 specimens were new collections to Eka Karya Botanic Garden, Bedugul.
Association of Spheranthus africanus (Asteraceae) with other Weeds In a Fallowed Rice Field Priyadi, Arief; Wibawa, I Putu Agus Hendra; Lugrayasa, I Nyoman
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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Spheranthus africanus is a minor weed of rice, which can be utilized for various purposes. It can be used for phytoremediation of soil contaminated with Pb and also reported to have anti-bacterial activity to be used as natural pesticides. However, because of its minority status little is known about this species in its natural habitat. This study was aimed to understanding the relationship between S. africanus with other weed species in a fallowed paddy field in Tabanan District, Bali, Indonesia. Vegetation analysis by quarter method was done in the rice field, where the species had occurred, in 2011 and 2012. Determination of association type between S. africanus with other weed was conducted by using 2x2 contingency table to calculate χ2, association coefficient (AC) and Ochiai index (OI). The result shows that the Shannon diversity index in this same area for the two consecutive years were 2.06 and 2.48 with species richness of 22 and 27 respectively. Calculation of Summed Dominance Ratio (SDR) showed that the species composition was not evenly distributed, in other words some species dominated others. In terms of association, although S. africanus mainly has no association with most of the weed species in the field, it prominently has positive association with Lindernia ciliata, and Digitaria ciliaris, with no significant negative association. Keywords: diversity, species association, Spheranthus africanus
STUDI ETNOBOTANI TIGA PASAR TRADISIONAL DI KABUPATEN TABANAN BALI Sujarwo, Wawan; Lugrayasa, I Nyoman; Kuswantoro, Farid
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5412.899 KB) | DOI: 10.14203/beritabiologi.v17i3.3342

Abstract

The trade process makes traditional market able to become a pool of traditional knowledge for various local wisdoms that develop in the local community, including the use of plants. This study aims to document the traditional uses of plant species traded in three traditional markets in Tabanan regency. Data collection was carried out by semi-structured interview toward 64 traders of Baturiti, Marga, and Tabanan traditional markets, respectively. Data analysis was performed quantitatively by calculating the use value index, and some ecological indices, such as diversity index, margalef index, pielou index, sørensen index, cluster analysis, and principal component analysis. Qualitative analysis was also used to tabulate and presented the data into tables and figures. The study documented 52 plant species belonging to 48 genera and 30 families. Herbs are the most widely used habitus, and Zingiberaceae is the most widely used plant family. The most widely used use-category is condiments, and Cocos nucifera is a plant species with the highest use-value. The study also showed a highly plant diversity, which is traded in each market, with slightly different similarities. Cluster analysis and PCA showed that there is a little difference in plants species traded in three traditional markets. Differences in altitude may affect the diversity of plant species traded, including the buyers preference (community).
Co-Authors Arief Priyadi Farid Kuswantoro, Farid I Gede Tirta I Putu Agus Hendra Wibawa Irawati Irawati Wawan Sujarwo