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All Journal Bioma : Jurnal Biologi Indonesia Jurnal Biogenerasi
Alda Wydia Prihartini Azar
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Languange, Linguistic, Communication & Media Other

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Komposisi Gulma Kebun Karet di Kebun Percobaan Cikabayan IPB, Bogor Maulani, Haris; Alda Wydia Prihartini Azar
Jurnal Biogenerasi Vol. 10 No. 2 (2025): Volume 10 no 2 periode februari - september 2025 ( continues)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v10i2.5489

Abstract

Weeds is one of important issues in rubber (Hevea brasilliensis Muell Arg.) plantation. Knowing composition is important so that weed management work effectively, efficiently, and the effects last longer. The aim of this study was to analyze the composition of rubber plantation weeds at Kebun Percobaan Cikabayan. Data collection used the 0.5x0.5 m2 quadrat plot which placed randomly in the rubber plantation area. Names and number of individuals of each species were collected. The crown part of each species was collected to calculate its dry weight. Data were analyzed using vegetation analysis to obtain the ratio of dominant species of each species. The result of this study are the Cikabayan rubber plantation weeds were composed of 7 species of grass weeds and 3 species of broadleaf weeds. Axonopus compressus is the most dominant species with a dominant species ratio value of 42.65%. Keywords: weeds, rubber, composition, dominant species ratio
Comparative analysis of pollen morphology at three flowering stages of Trimezia martinicensis (Jacq.) Herb. (Iridaceae), an invasive species in Indonesia Alda Wydia Prihartini Azar; Isnaeni Nur Ardianti; Hasna Dyah Kusumardani; Sri Lestari; Riska Desi Aryani
Bioma Vol. 21 No. 2 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i2.55503

Abstract

Pollen morphology provides critical insights into plant reproduction, taxonomy, and evolutionary relationships. This study investigates pollen development in Trimezia martinicensis (Iridaceae), an invasive alien species in Indonesia, across three flowering stages: closed bud, developed bud, and mature flower. Vegetative and floral traits were documented alongside stage-specific palynological analyses. Pollen grains were examined under light microscopy to assess changes in orientation, shape, aperture, and exine architecture. Results revealed distinct morphological transitions, including spheroidal grains with monocolpate apertures at early stages, progressing to more rounded forms with refined wall structures in mature flowers. These findings highlight the dynamic nature of pollen morphology during anthesis and underscore its relevance for reproductive biology, taxonomy, and management of IAS in Indonesia.
Co-Authors Hasna Dyah Kusumardani Isnaeni Nur Ardianti Maulani, Haris Riska Desi Aryani SRI LESTARI