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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Sainstek Journal of Marine Research JURNAL ILMU PERTANIAN Bioedukasi: Jurnal Pendidikan Biologi Biology, Medicine, & Natural Product Chemistry Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Ilmiah Peuradeun Jurnal Biodjati Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Formatif: Jurnal Ilmiah Pendidikan MIPA Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi Assimilation: Indonesian Journal of Biology Education Jambura Edu Biosfer Journal Jambura Journal of Health Sciences and Research Jambura Journal of Chemistry BIOSFER : Jurnal Biologi dan Pendidikan Biologi Jurnal Review Pendidikan dan Pengajaran (JRPP) Agroteknika RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Spizaetus: Jurnal Biologi dan Pendidikan Biologi Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Jurnal Kewarganegaraan Nusantara: Jurnal Pendidikan Indonesia BIOMA : Jurnal Biologi dan Pembelajarannya BIOVALENTIA: Biological Research Journal Makara Journal of Science JURNAL BIOLOGI PAPUA Journal of Tropical Mycorrhiza Jurnal Rekayasa elektrika Jurnal Biologi Al-Hayat: Natural Sciences, Health & Environment Journal Biodik: Jurnal Ilmiah Pendidikan Biologi HUMANIORASAINS Tumbuhan : Publikasi Ilmu Sosiologi Pertanian dan Ilmu Kehutanan Science: Indonesian Journal of Science Jurnal Cendekia Ilmiah Jurnal Pendidikan Kimia, Fisika dan Biologi RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi Inventa: Journal of Science, Technology, and Innovation Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Biodiversitas Journal of Biological Diversity
Novri Youla Kandowangko
Universitas Negeri Gorontalo
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Hubungan Fenetik Pisang (Musa Spp) berdasarkan Karakter Morfologi di Wilayah Provinsi Gorontalo Elsi Gogou; Novri Youla Kandowangko; Febriyanti; Jusna Ahmad; Aisyah Ahmad
Spizaetus: Jurnal Biologi dan Pendidikan Biologi Vol 6 No 2 (2025): Spizaetus: Jurnal Biologi dan Pendidikan Biologi
Publisher : Program Studi Pendidikan Biologi, FKIP, Universitas Nusa Nipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55241/spibio.v6i2.566

Abstract

Banana (Musa spp) is a tropical fruit plant that has many benefits and important roles for the community. This study aims to provide information on the morphological characteristics of bananas in the Gorontalo Province and their phenetic relationships. This study uses a descriptive method to describe the diversity of morphological characters of bananas (Musa spp) with data collection using a survey study method (exploration) which is carried out by tracing or exploring the location of the Gorontalo Province, purposive sampling (Purposive Stratified Sampling) by seeing and observing directly the morphological characters of bananas (Musa spp). Data analysis using the Unweighted Pair Group with Mean of Arithmetic (UPGMA) method with the Gower Genelar Similarity Coeffiicient formula in the MVSP (Multi-Variate Statistical Package) v.3.1 computer program. The results of the study showed that there were 4 types of bananas found in the Gorontalo Province which showed unique morphological variations, namely Kepok Bananas have the characteristic of quite large leaf morphology, Abati Bananas have a unique yellowish color, Green Butota Bananas have morphological characteristics with very thick fruit and Wild Bananas have characteristics with a large number of stones. Based on the results of the clustering, 2 main groups were formed which separated at a cosiness of 0.643 (64.3%) found between Abati Bananas, Green Butota, and Wild Bananas, while Kepok Bananas showed a very distant relationship with a cosiness value of 0.482 (48.2%). The results of this study have the potential to support the preservation of local varieties and support the sustainable genetics management through the identification of varieties that are tolerant to salinity and drought.
Vegetation Analysis of Tree Species in the Hungayono Karst Ecosystem Ishak, Rafli; Katili, Abubakar Sidik; Husain, Ilyas H.; Mamu, Hartono D.; Kandowangko, Novri Youla
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12150

Abstract

Karst ecosystems possess distinctive edaphic and hydrological characteristics that influence vegetation structure, yet information regarding tree vegetation in the Hungayono karst area remains limited. This study aimed to analyze species composition, vegetation structure, and community patterns of tree vegetation in the Hungayono Karst Ecosystem, Tulabolo Pinogu Resort, Bogani Nani Wartabone National Park. A survey method with purposive sampling was applied at three karst topographic zones representing the lower, middle, and upper areas. Five 20 × 20 m plots were established at each zone, resulting in 15 observation plots. Vegetation data were analyzed using density, frequency, dominance, Important Value Index (IVI), and Principal Component Analysis (PCA). The results recorded 12 species with a total of 61 individuals belonging to the divisions Tracheophyta and Pinophyta. The lower karst zone exhibited the highest species richness and abundance, whereas the upper zone showed a simple and nearly monodominant community structure. Bambusa multiplex dominated Point I with an IVI of 76.38%, Neolamarckia macrophylla dominated Point II with an IVI of 179.5%, and Neolamarckia cadamba dominated Point III with an IVI of 300%. PCA analysis indicated heterogeneous vegetation communities influenced by topography, soil thickness, and microclimatic conditions. These findings highlight the ecological role of karst topographic gradients in shaping tree vegetation structure and provide scientific information for karst habitat management and conservation.
Carbon Absorption Potential in the Hungayono Karst Ecosystem, Tulabolo Pinogu Resort, Bogani Nani Wartabone National Park Timbola, Muh Kirad; Katili, Abubakar Sidik; Husain, Ilyas H.; Kandowangko, Novri Youla; Mamu, Hartono D.
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12170

Abstract

Climate change caused by increasing carbon dioxide (CO₂) emissions has become a global issue affecting environmental balance and rising global temperatures. Tropical forest ecosystems, including the Hungayono karst area in Bogani Nani Wartabone National Park, play an important role as carbon sinks through vegetation biomass. This study aims to analyze vegetation density, biomass, carbon content, and carbon sequestration potential in the Hungayono karst ecosystem. The research was conducted using a quantitative descriptive method with purposive sampling techniques at three observation points through the transect quadrat method. Vegetation data were analyzed using allometric equations and IPCC conversion factors. The results showed a tree density of 290 individuals/ha and sapling density of 335 individuals/ha. Total biomass reached 677.79 tons/ha, carbon content was 420.06 tons/ha, and carbon sequestration potential was 1541.63 tons CO₂e/ha. These findings indicate that tree-level vegetation plays a dominant role in carbon storage and climate change mitigation.
Colonization of Actinomycetes Encapsulates in The Rhizosphere of Cultivated Plants Dama, Dewi Rahayu; Retnowati, Yuliana; Kandowangko, Novri Youla; Katili, Abubakar Sidik; Ahmad, Jusna
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12258

Abstract

The growth of cultivated plants is often hampered by soil degradation due to excessive use of chemical inputs. The use of microorganisms such as actinomycetes offers an environmentally friendly alternative, but its appli cation is still limited due to its low viability in the field. This study aims to analyze the colonization ability of encapsulated actinomycetes on the roots of cultivated plants, focusing on parameters such as the ability to infect root tissue, and the ability to induce growth in cultivated plants. Actinomycete isolates were obtained from the rhizosphere of maize plants that exhibit PGPR activity. This study was conducted quantitatively with a descriptive approach. This study used treatments with and without inoculation of encapsulated actinomycetes on maize (Zea mays var. ceratina) and cocoa (Theobroma cacao) plants. The results showed that encapsulated actinomycetes were able to colonize the root systems of maize and cocoa plants, as indicated by the presence of actinomycete filamentous structures on the root surface and within the root tissue. Inoculation with encapsulated actinomycetes induced growth in both plant species, as demonstrated by improvements in all growth parameters. Encapsulated actinomycetes have the potential to be effective biological agents for enhancing plant growth and provide an environmentally friendly technological alternative to support sustainable agriculture.
Influence of Various Types of Chitosan on Biomass and Callus Morpology of Momordica Cochinchinensis in Vitro Nazwa S. Lamante; Devi Bunga Pagalla; Jusna Ahmad; Novri Youla Kandowangko; Indriati Husain
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i3.12314

Abstract

Momordica cochinchinensis is a medicinal, herbs locally known in gorontallo as dumbaya. Tradisionally, this plant has been utilized as both a food of food course a herbal medicine. Due to its rich contains of bioactive compounds, making it a potential candidate for development through plant tissue culture. This study aimed to determine the effects of different chitosan concentrations on the biomass and callus morphology of M. cochinchinensis cultivated in vitro. The experiment was arranged in a non-factorial completey randomized design consisting of three chitosan concentrations: 15 mg L -1, 25 mg L-1, and 35 mg L-1, respectively, as well as a 5000 mg L-1 chitosan stock solution per liter of MS medium. Each treatment consisted of three replicates. The observed parameters included callus fresh weight, dry weight, color, texture, and the percentage of callus formation. Data were analyzed using a one-way ANOVA at a 5% significance level. Since the fresh weight data showed significant differences, it was followed by a Duncan’s Multiple Range Test (DMRT) at the 5% level. The results showed that different chitosan concentrations significantly affected the callus fresh weight (F = 7.932; p = 0.021). the 15 mg L-1 treatment yielded the highest fresh weight, 0.04067 ± 0.0115 g, which was significantly different from the 35 mg L-1 treatment (0.3000 ± 0.0458 g) but not significantly different from the 25 mg L-1 treatment (0.3300 ± 0.0346 g) conversely, chitosan concentration did not significantly affect the culls dry weight (F = 3.519); p = 0.097). all treatmeants resulted in 100% callus formation with white and friable callus morphology. These findings indicate that among the tasted concentrations, 15 mg L-1 of chitosan is the most favorable concentration for demonstrating callus fresh weight accumulation of M. cochinchinensis under in vitro culture conditions.
Effect of Methyl Jasmonate on In Vitro Callus Growth of Momordica cochinchinensis Widyawati S. Isima; Jusna Ahmad; Devi Bunga Pagalla; Novri Youla Kandowangko; Indriati Husain
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): Juli - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i3.12324

Abstract

Momordica cochinchinensis (Lour.) Spreng., locally known as dumbaya in Gorontalo, is a tropical climbing plant with potential as a functional food and medicinal resource, but its natural availability is limited by low seed germination, slow growth, and environmental sensitivity. This study aimed to determine the effect of methyl jasmonate (MeJA) concentrations on callus growth of young stem explants of M. cochinchinensis under in vitro conditions. The experiment used a completely randomized design with five treatments: MS without plant growth regulators, MS + 2,4-D + BAP, MS + MeJA 6 mL/L, MS + MeJA 11 mL/L, and MS + MeJA 16 mL/L. The observed parameters were callus formation percentage, callus initiation time, and callus morphology. Quantitative data were analyzed using one-way ANOVA followed by Duncan’s test at 5%, while morphological data were described qualitatively. All treatments produced 100% callus formation within 14 days. MeJA affected callus initiation time, with MS + MeJA 6 mL/L showing the fastest average response at 3.67 days after culture. The callus was mostly friable with varied coloration. This treatment may support further development of M. cochinchinensis callus culture and provides preliminary information for optimizing in vitro propagation protocols for this locally valuable species in future studies.
Co-Authors Abubakar Sidik Katili Adelia Salsabila Rahman Adila Nindhaulhasanah Adju, Fitria Y.Hs. Ahaya, Cindi Ahmad Hidayat Ahmad, Aisyah Aisyah Ahmad Aisyah Ahmad Akbar, Muh Nur Alfandi Kibu Ali, Fathur Rahman M. Andi Pratiwi Andi Pratiwi Ani Hasan, Ani Ani M. Hasan Apriliyanti Mohulaingo Aryati Abdul Bakari, Iswanto Bambang Mamangkay Bulowe, Yuniarty R Chairunnisa Lamangantjo Citra Leonita Matalauni Cono, Titi Hawanda Metania Dali, Ira K. Dama, Dewi Rahayu Damopolii, Insar Danial Mohamad Devi Bunga Pagalla Devi Bunga Pagalla Dewi Wahyuni K. Baderan Djafar, Fitri Yani Djuna Lamondo Dwinanto, Arif Elawati, Elawati Elsi Gogou Elya Nusantari ERNA RETNAWATY ERWIN NADJAMUDIN Fadlia Dunggio Fathur Rahman M. Ali Fatmariani Abdul Wahab Febriyanti Febriyanti febriyanti febriyanti Febriyanti Febriyanti Frida Maryati Yusuf GIAT SURYATMANA Gintulangi, Sabriana Oktaviana Gogou, Elsi Hamzah B Uno Hartono D. Mamu Hayatiningsih Gubali Husain, Holiyana Husain, Ilyas H. Ilyas Husain Indayani Tandililing Indiriati Husain Indri Meliyani Bouta Indriati Husain Ishak, Rafli Isima , Lindawaty Iswanto Bakari Jan Hendriek Nunaki Jusna Ahmad Kadita P. Latif Keley, Umar Keley, Umar Labuga, Falerins ladoma, wafiq aziza m. Lamatenggo, Nina Lindawaty Isima Lindawaty Isima Magfirahtul Jannah Margaretha Solang Marini Susanti Hamidun Masra Latjompoh Mega Rosalita Ekaputri Koni Miftahul F. Adudu Miftahul Fikriyah Adudu Muchtar Ahmad Muh. Nur Akbar Muhammad Isra Mukhlisulfatih Latief Mustamin Ibrahim Mustaqimah, Nur Mutmainah Mutmainah Nazifah R Adam Nazwa S. Lamante NENNY NURLAENY Nurdin . Nuryanti Rumalolas Pagala, Devi Bunga Pakaya, Melisa Patta Sija Potutu, Bayu S. Putri, Tarissa Eka Rahman, Iyam Rahwilin Van Gobel Ramli Utina Rampi Yusuf Rianjani, Devi Tutut Rianjani, Devi Tutut Rinna Amelia Polihito Risna A. Onu Rizal Suleman Rizaldi Mokodompit ROBERT DJONGGI MARULI SIMANUNGKALIT Rosely, Meilin S. Y. Sahat Patar Lumban Gaol Saifullah Mamonto Suwarni Karim Syafar, Sitti Zaenab Tadidik, Ulfaida H. Timbola, Muh Kirad Ui, Maryam Walangadi, Farhana Rahmatia Wawan Pembengo Widyawati S. Isima Wilinda A. Datau Winda Jakaria Wirnangsi Din Uno Wirnangsih D. Uno Yelsi Patiung Yuliana Nurdian Toini Yuliana Retnowati Yumna Binti Abud Alamri Yuniyarti Hulu Yusrin Anton Puluhulawa Yusriyah Yusriyah Zuliyanto Zakaria Zusriadi, Brenda Febrina