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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology BIODIVERS - BIOTROP Scientific Magazine
SOEKISMAN TJITROSEMITO
SEAMEO BIOTROP
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science Immunology & microbiology Veterinary

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What a Rich BIOTROP: Development Database Framework of Biodiversity Heritage Collections Harry Imantho; Saeful Bachri; Ina Retnowati; Sri Sudarmiyati Tjitrosoedirdjo; Soekisman Tjitrosemito; Sri Widayanti; Risa Rosita; Irawan Irawan; Supriyanto Supriyanto; Iman Hidayat
BIODIVERS - BIOTROP Science Magazine Vol. 2 No. 2 (2023): BIODIVERS (BIOTROP Science Magazine) - Biodiversity for All
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2023.2.2.2096

Abstract

The need for biodiversity science with the availability and interoperability of data on the internet reinforces each other. This is driven by the increasing literacy of the world community regarding the impact of loss of biodiversity on the sustainability of human life. High-quality biodiversity data is needed to demonstrate that spatio-temporal loss of biodiversity has led to a reduction in quality of life. This facts have underpinned SEAMEO BIOTROP to increase the visibility of managed biodiversity collection data. SEAMEO BIOTROP maintains thousands of valuable herbarium collections of weeds, trees and invasive plants; fungi, insects and pests for research and testing purposes. These historic and valuable collections of biodiversity need to be preserved and better managed in digital format so that the information is available to botanists and the general public around the world. A study regarding the development of an integrated biodiversity collection database framework has been carried out by SEAMEO BIOTROP. This study aims to formulate and develop an initial framework for the BIOTROP biodiversity database that is relevant to national, regional and global needs. This study succeeded in developing an integrated database framework that brings together all digital data from the SEAMEO BIOTROP biodiversity collection into a database management system. This database management system also adopts Darwin Core metadata to ensure easy exchange and sharing of data with existing biodiversity data management systems in the world.
THE PERFORMANCE OF SOYBEAN (c.v. Americana) ESTABLISHED BY ZERO TILLAGE TECHNIQUE IN IMPERATA FIELD CONTROLLED BY HERBICIDES SOEKISMAN TJITROSEMITO
BIOTROPIA No. 2 (1989)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.519 KB) | DOI: 10.11598/btb.1989.0.2.92

Abstract

A  field  experiment  was  conducted  to  investigate  the performance  of  soybean  (c.v.  Americana)  when established with zero tillage technique on Imperata dominated area. Four different techniques of alang-alang control  i.e.  imazapyr  (20  kg  ai/ha),  glyphosate  (25  kg  ai/ha),  glufosinate  (3.0  kg  ai/ha)  and  manual cultivation were arranged factorially with time of plantings i.e. 1,2 and 3 months after treatments. The  alang-alang  damages  varied  with  herbicides  and  times,  imazapyr  (20  kg  ai/ha) showed slow appearance of damage at 3 months after application it was only 69%, while that of glufosinate was already down to 48% due to regrowth. No phytotoxicity was recorded, but the yield was low.
INTEGRATED MANAGEMENT OF CHROMOLAENA ODORATA EMPHASIZING THE CLASSICAL BIOLOGICAL CONTROL SOEKISMAN TJITROSEMITO
BIOTROPIA No. 11 (1998)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.1998.0.11.140

Abstract

Chromolaena odorata, Siam weed, a very important weed of Java Island (Indonesia) is native to Central and South America. In the laboratory it showed rapid growth (1.15 g/g/week) in the first 8 weeks of its growth. The biomass was mainly as leaves (LAR : 317.50 cm'/g total weight). It slowed down in the following month as the biomass was utilized for stem and branch formation. This behavior supported the growth of C. odorata into a very dense stand. It flowered, fruited during the dry season, and senesced following maturation of seeds from inflorescence branches. These branches dried out, but soon the stem resumed aggressive growth following the wet season. Leaf biomass was affected by the size of the stem in its early phase of regrowth, but later on it was more affected by the number of branches. The introduction of Pareuchaetes pseudoinsulata to Indonesia, was successful only in North Sumatera. In Java it has not been reported to establish succesfully. The introduction of another biological control agent, Procecidochares conneca to Indonesia was shown to be specific and upon release in West Java it established immediately. It spread exponentially in the first 6 months of its release. Field monitoring continues to evaluate the impact of the agents. Other biocontrol agents (Actmole anteas and Conotrachelus) wilt be introduced to Indonesia in 1997 through ACIAR Project on the Biological Control of Chromolaena odorata in Indonesia and Papua New Guinea. Keywords: Indonesia / North Sumatra / West Java / Biological control / Chromolaena odorata i Pareuchaetes pseudoinsulata I Procecidochares conneca.
Co-Authors Harry Imantho Iman Hidayat Ina Retnowati Irawan Irawan Risa Rosita Saeful Bachri Sri Sudarmiyati Tjitrosoedirdjo SRI WIDAYANTI Supriyanto Supriyanto