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All Journal Bumi Lestari Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Biodjati INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES
Wijaya, I Made Saka
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science

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List of Orchid Species along the Northern Trekking Route of Mount Binaiya, Seram Island, Maluku - Indonesia Wijaya, I Made Saka; Purnomo, Purnomo
International Journal of Environment and Geosciences Vol 5 No 1 (2024): International Journal of Environment and Geosciences
Publisher : Graduate Study of Environmental Sciences, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ijeg.2024.v05.i01.p03

Abstract

Orchidaceae is widely distributed on Earth with major distribution in the tropical regions, including Indonesia. Seram Island located in Maluku Province Indonesia has a high potential to become a habitat for various species of Australasian orchids. Orchid diversity tends to be related to altitude variations in the area that indirectly contribute to creating microclimate variations. One area on Seram Island with various variations in altitude is Mount Binaiya within the Manusela National Park area. This study aims to identify orchid species found on Mount Binaiya. The exploration method was used on the northern trekking route of Mount Binaiya, divided into Waisamata, Kanikeh, Waiansela, and Waihuhu areas. Based on the result, 47 species of orchids were obtained, which belong to the subfamilies Epidendroideae (35 species), Orchidoideae (11 species), and Vanilloideae (1 species). Based on the life form, 25 species were epiphytes, while 22 species were terrestrial orchids. Waisamata had the highest number of species (23 species), followed by Waiansela (14 species), Waihuhu (14 species), and Kanikeh (8 species). Of all these species, some that need further research are Corybas spp., Cyrtosia nana, Pterostylis papuana, Glomera papuana, and Mediocalcar pygmaeum. Some species are new records in their distribution or rediscoveries of existing records.
Karakteristik Polen pada Spesies Mangrove di Kawasan Hutan Mangrove Batu Lumbang, Denpasar, Bali Pramesti, Ni Kadek Rika; Wijaya, I Made Saka; Gari, Ni Made
Bumi Lestari Journal of Environment Vol 24 No 1 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2024.v24.i01.p05

Abstract

The diversity of mangrove species in an area can be observed through morphological structure, anatomy, as well as palynology. Palynology is a study of pollen that frequently used as a reference to support data in identifying mangrove species. Mangrove areas in Bali have patchy distribution, one of which can be found in the Batu Lumbang area. Batu Lumbang is a mangrove area that is part of the Ngurah Rai Forest Park. Observation of the micromorphological characteristics of pollen in the Batu Lumbang mangrove forest area was carried out through the acetolysis method with modification. Eleven mangrove species were sampled, comprised of Aegiceras corniculatum, Avicennia marina, Bruguiera gymnorhiza, Ceriops tagal, Exoecaria agallocha, Lumnitzera racemosa, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, Sonneratia caseolaris, and Xylocarpus granatum. The results of observations on pollen from eleven species of mangroves show similarities of pollennits, monads. In addition, other pollen characters such as aperture type, pollen shape, and pollen size categories found vary among the samples observed. These characters can also group several species that have the same family or genus. In turns, these can be used as diagnostic character to distinguish one species with another.
Keanekaragaman Jenis Burung di Kawasan Kampus Universitas Udayana, Bukit Jimbaran, Bali Sharon, Michelle Angelina; Sumbawati, Ni Kadek Aryani; Andani, Firman; Zaetuna, Hanifa Laila; Wijaya, I Made Saka; Yuni, Luh Putu Eswaryanti Kusuma
Bumi Lestari Journal of Environment Vol 24 No 1 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2024.v24.i01.p06

Abstract

Birds are an important component of balancing ecosystems and have a reciprocal relationship and close dependence to their environment. The high number of bird species found can indicate the ecological role of the environment, either for finding food and shelter, or for nesting and breeding areas. Udayana University Bukit Jimbaran Campus, with a total land area of ??27,649 ha, still has plenty of green area. This condition provides great potential as habitat for various bird species. This study aims to identify the bird species found in Udayana University Bukit Jimbaran campus area. The method used was the point count method at 11 observation points that was determined by purposive sampling. The indices calculated were the diversity, uniformity, dominance, and relative abundance. From this study, 30 bird species from 18 families were recorded with a total of 571 individuals scattered at each observation point. Based on the calculated indices, the diversity of bird species in Bukit Jimbaran Udayana University campus area was considered as moderate, with a stable species distribution, and low dominance (no species dominates). Keywords: abundance, birds, diversity, dominance, evenness
Komposisi Vegetasi dalam Mendukung Potensi Wisata Alam di Desa Bongkasa Pertiwi, Kabupaten Badung, Bali Wibisono, Adi Ariyanto; Wijaya, I Made Saka; Dalem, Anak Agung Gde Raka; Sari, Ida Ayu Eka Pertiwi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 1 (2023): February 2023
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i1.6085

Abstract

Bali memiliki banyak daerah yang berpotensi sebagai daerah tujuan wisata alam, salah satunya dengan memanfaatkan kawasan di sekitar Sungai Ayung. Sungai merupakan ekosistem terbuka, sehingga berkaitan erat dengan vegetasi riparian. Desa Bongkasa Pertiwi, Kecamatan Abiansemal, Kabupaten Badung, Bali merupakan salah satu desa yang berada di tepi Sungai Ayung. Penelitian ini bertujuan untuk mengetahui komposisi vegetasi riparian di sekitar Sungai Ayung di Desa Bongkasa Pertiwi. Penentuan komposisi vegetasi riparian menggunakan metode plot, kemudian dianalisis untuk memperoleh parameter vegetasi dan lingkungan. Untuk mengetahui potensi wisata alam digunakan metode observasi dengan mengamati jenis tumbuhan yang memiliki interaksi khas dengan fauna setempat. Berdasarkan hasil penelitian, diperoleh bahwa vegetasi riparian yang terletak ke arah daratan memiliki struktur vegetasi yang lebih stabil dengan regenerasi jenis yang lebih baik dibandingkan dengan vegetasi riparian yang terletak ke arah Sungai Ayung. Secara umum, komposisi vegetasi riparian menunjukkan eksistensi dari pohon khas riparian, seperti bayur (Pterospermum javanicum). Bayur menjadi salah satu pohon penting yang berperan dalam mendukung wisata alam di Desa Bongkasa Pertiwi karena memiliki i interaksi dengan fauna lokal seperti burung alap-alap kawah (Falco peregrinus), burung pelatuk besi (Dinopium javanense), burung kadalan birah (Phaenicophaeus curvirostris), dan burung cucak kuning (Pycnonotus melanicterus).
In vitro assessment of antifungal activity of cinnamon leaves extract against the Colletotrichum sp. causes of anthracnose on tomato Sudirga, Sang Ketut; Darmadi, Anak Agung Ketut; Wijaya, I Made Saka; Yulihastuti, Dwi Ariani
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 2 (2024): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.224284-294

Abstract

Tomato is a horticultural plant widely cultivated in Bali. Over the three years, the productivity and quality of this plant have tended to decrease due to pathogen-derived diseases, such as anthracnose caused by Colletotrichum sp. Until recently, control of this pathogenic fungus has relied on chemical-based fungicides, which lead to many long-term complications, including pathogen resistance, environmental pollution, the extinction of non-target microorganisms, and negative impacts on human health. Therefore, alternative methods for plant disease control are urgently needed to combat these pathogen attacks. The use of plant-derived active compounds has been intensively researched worldwide as a more environmentally friendly alternative. The main objective of this research was to investigate the effectiveness of Cinnamomum burmanii acetone extract in inhibiting the growth of Colletotrichum sp., the causative agent of anthracnose in tomatoes, through an in vitro approach. A non-factorial randomized complete design was applied in the experiment. The results showed that the crude extract of cinnamon leaves inhibited the growth of the Colletotrichum sp. with an MIC value of 0.9%, an inhibition zone of 2.55 mm, and an optimal inhibitory concentration of 2%, producing an inhibition zone of 11.10 mm. A GC-MS analysis was conducted to identify the active compounds in the cinnamon leaf extract. Sixteen active compounds were identified, nine of which are known to have antimicrobial activity.
Spores Morphological Characteristics of Several Ophioglossaceae and Psilotaceae Fern in "Eka Karya" Botanical Garden - Bali Pramesti, Ni Kadek Rika; Lestari, Wenni Setyo; Kriswiyanti, Eniek; Wijaya, I Made Saka
Jurnal Biodjati Vol 8 No 2 (2023): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v8i2.29453

Abstract

Ferns of Ophioglossaceae and Psilotaceae families can be found in the "Eka Karya" Botanical Garden, Bali as a collection or naturally growing in the botanical garden and those families are taxonomically classified as primitive ferns. The morphological characteristics of the family of Ophioglossaceae and Psilotaceae or even other types of ferns can be known through the morphological characteristics of the spores. This study aimed to characterize the spore morphology of the Ophioglossaceae and Psilotaceae fern of The "Eka Karya" Botanical Garden. Observation of the morphological characteristics of spores in the "Eka Karya" Botanical Garden was carried out by a simple method without acetolysis. The result of six types of fern plants from the family of Ophioglossaceae and Psilotaceae showed similarities to the spore unit, monads. Each family has unique characteristics that can be used to differentiate each other. The family Ophioglossaceae has a variety of spore colors, trilete spore types, mostly globose-shaped (except for one species the trilobate), the average polar diameter is 28.59±2.19 – 31.00±2.49 μm and the equatorial diameter is 32.85±1.74 – 37.55± 1.71 μm, the P/E ratio is 0.79-0.87, the shape based on the P/E ratio is suboblate, the spore size category is medium and has radial symmetry. For the family Psilotaceae, has a pale yellow-green spore color, monolete type, elongate-ellipsoidal shape, average polar diameter of 26.20±2.76 –29.81±2.96 μm and equatorial diameter of 52.98±2.55 – 63.31±4.65 μm, P/E ratio of 0.47-0.49, shape based on P/E ratio i.e. peroblate, large spore size category and has bilateral symmetry. Those characteristics are valuable taxonomic data that can be used as diagnostic characters for the identification of the families Ophioglossaceae and Psilotaceae.
Komposisi Vegetasi dalam Mendukung Potensi Wisata Alam di Desa Bongkasa Pertiwi, Kabupaten Badung, Bali Wibisono, Adi Ariyanto; Wijaya, I Made Saka; Dalem, Anak Agung Gde Raka; Sari, Ida Ayu Eka Pertiwi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 1 (2023): February 2023
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i1.6085

Abstract

Bali memiliki banyak daerah yang berpotensi sebagai daerah tujuan wisata alam, salah satunya dengan memanfaatkan kawasan di sekitar Sungai Ayung. Sungai merupakan ekosistem terbuka, sehingga berkaitan erat dengan vegetasi riparian. Desa Bongkasa Pertiwi, Kecamatan Abiansemal, Kabupaten Badung, Bali merupakan salah satu desa yang berada di tepi Sungai Ayung. Penelitian ini bertujuan untuk mengetahui komposisi vegetasi riparian di sekitar Sungai Ayung di Desa Bongkasa Pertiwi. Penentuan komposisi vegetasi riparian menggunakan metode plot, kemudian dianalisis untuk memperoleh parameter vegetasi dan lingkungan. Untuk mengetahui potensi wisata alam digunakan metode observasi dengan mengamati jenis tumbuhan yang memiliki interaksi khas dengan fauna setempat. Berdasarkan hasil penelitian, diperoleh bahwa vegetasi riparian yang terletak ke arah daratan memiliki struktur vegetasi yang lebih stabil dengan regenerasi jenis yang lebih baik dibandingkan dengan vegetasi riparian yang terletak ke arah Sungai Ayung. Secara umum, komposisi vegetasi riparian menunjukkan eksistensi dari pohon khas riparian, seperti bayur (Pterospermum javanicum). Bayur menjadi salah satu pohon penting yang berperan dalam mendukung wisata alam di Desa Bongkasa Pertiwi karena memiliki i interaksi dengan fauna lokal seperti burung alap-alap kawah (Falco peregrinus), burung pelatuk besi (Dinopium javanense), burung kadalan birah (Phaenicophaeus curvirostris), dan burung cucak kuning (Pycnonotus melanicterus).
Co-Authors Abd. Rahman As-syakur Anak Agung Gde Raka Dalem, Anak Agung Gde Raka Anak Agung Ketut Darmadi Andani, Firman Dwi Ariani Yulihastuti ENIEK KRISWIYANTI Gede Surya Indrawan I Made Sara Wijana LUH Puru ESWARYANTI KUSUMA YUNI Ni Made Gari Pramesti, Ni Kadek Rika Purnomo Purnomo Putu Angga Wiradana Rahardja, Viryanando Evan SANG KETUT SUDIRGA Sari, Ida Ayu Eka Pertiwi Sharon, Michelle Angelina Sumbawati, Ni Kadek Aryani Wenni Setyo Lestari, Wenni Setyo Wibisono, Adi Ariyanto Zaetuna, Hanifa Laila