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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Agroekoteknologi Terapan Biofaal Journal
Lumingkewas, Adeleyda M. W.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Physics

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PENGARUH WAKTU PEMANGKASAN DAUN DIBAWAH TONGKOL TERHADAP PRODUKSI TANAMAN JAGUNG (Zea mays L) DI DESA PADANG KECAMATAN BINTAUNA BOLAANG MONGONDOW UTARA Noeng, Masshynio Ch. A.; Lumingkewas, Adeleyda M. W.; Najoan, Jemmy; Pinaria, Arthur; Tumbelaka, Selvie; Wantasen, Sofia; Pakasi, Sandra
Biofaal Journal Vol 5 No 1 (2024): Biofaal Journal
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/biofaal.v5i1pp019-025

Abstract

Jagung (Zea mays L) adalah salah satu tanaman pangan yang merupakan sumber karbohidrat utama kedua setelah beras. Metode modifikasi lingkungan mikro dapat meningkatkan produksi jagung. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh waktu pemangkasan daun di bawah tongkol terhadap tingkat produksi jagung. Studi ini dilakukan di Desa Padang, Kecamatan Bintauna, Kabupaten Bolaang Mongondow Utara, Sulawesi Utara, dari Desember 2023 hingga April 2024. Metode penelitian adalah rancangan acak kelompok dengan lima perlakuan dan tiga kali ulangan. Penelitian menemukan bahwa perlakuan pemangkasan daun di bawah tongkol adalah tanpa pemangkasan (P0), pemangkasan 60 hari setelah tanam (P1), pemangkasan 70 hari setelah tanam (P2), pemangkasan 80 hari setelah tanam (P3) dan pemangkasan 90 hari setelah tanam. Hasil penelitian menunjukkan bahwa komponen produksi pada panjang tongkol, yaitu ukuran tongkol 19,26 cm dengan diameter 5,00 cm, berat biji sekitar 241.92 g, dan jumlah biji sekitar pertongkol 617.42, meskipun berdasarkan hasil analisis sidik ragam, pengaruh tanaman jagung hanya terbatas pada panjang dan diameter tongkol.
Identification of Phytochemical Compounds Antioxidant Leaf Extract and Clove Flower Extract (Syzygium aromaticum) Lumingkewas, Adeleyda M. W.; Unitly, Adrien Jems Akiles
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.4927

Abstract

One plant known as a flavoring spice, but also as a traditional medicinal plant that is thought to contain antioxidant phytochemical compounds, namely cloves (Syzygium aromaticum) which are widely found in Maluku, Sulawesi and surrounding areas. This study aims to identify the phytochemical compounds of antioxidants of leaf extract and clove flower extract (Syzygium aromaticum) originating from North Sulawesi using leaf methanol extract and clove flowers, where the test was carried out at the Research Center for Spice and Medicine Plant (Ballitro) Bogor included the alkaloid qualitative test , flavonoids, saponins, tannins, and triterpenoids. The results found that there were components of antioxidant phytochemicals in the form of alkaloids, flavonoids, saponins, tannins and triterpenoids in the extraran methanol leaf and clove flowers, with the frequency of existence ranging from there to many.
Moringa (Moringa oleifera L.) Seed Powder as a Bioadsorbent for Heavy Metals in Community Gold Mine Effluent: Implications for Agricultural Water Use Wantasen, Sofia; Tumbelaka, Selvie; Lumingkewas, Adeleyda M. W.; Paat, Frangky J.
Jurnal Agroekoteknologi Terapan (Applied Agroecotechnology Journal) Vol. 6 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v6i2.65932

Abstract

Gold mining in rural areas can contaminate rivers and canals that are also used for irrigation, creating risks for agricultural water use. This study evaluated Moringa oleifera seed powder as a low-cost bioadsorbent to improve community gold mine wastewater in Bolaang Mongondow Timur, North Sulawesi, Indonesia. Effluent collected at the mine outlet was treated in batch with moringa seed powder at 0, 0.5, 1.0 and 1.5 g L⁻¹. Concentrations of Cd, Cr, Cu, Pb and Hg were measured by atomic absorption spectrophotometry before and after treatment, and summarized together with removal efficiencies and Indonesian effluent standards. A dose of 0.5 g L⁻¹ gave the best apparent reduction for Cd and Cu, while Pb and Hg responded best at higher doses; Cr was only weakly affected, consistent with the limited removal of anionic Cr(VI) by unmodified biosorbents. Overall, moringa seed powder reduced the levels of several cationic metals. It may help lower heavy-metal loads entering agricultural water systems. Still, the non-replicated, descriptive nature of the data means that further replicated and field-based studies are needed before routine irrigation use can be recommended. Keywords: Moringa oleifera; bioadsorbent; gold mine wastewater; heavy metals; irrigation water quality
Neighbourhood-Scale Carbon Footprint of Community Activities in Batu Kota, Malalayang District, Manado City Claudhio, Jehezkiel K.; Wantasen, Sofia; Lumingkewas, Adeleyda M. W.; Paat, Frangky J.; Rotinsulu, Wiske C.; Paulus, Jeanne M.; Pakasi, Sandra E.; Pioh, Diane D.; Ogie, Tommy B.; Porong, Jelie Viekson
Jurnal Agroekoteknologi Terapan Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.67504

Abstract

Neighbourhood-scale carbon-footprint assessment is increasingly important for understanding how everyday urban activities contribute to greenhouse-gas emissions. This study evaluated the carbon footprint generated by community activities in Kelurahan Batu Kota, Malalayang District, Manado City, Indonesia. The research was conducted from January to February 2026 using a quantitative survey approach with purposive sampling. A total of 335 households were selected from five neighbourhood units. Primary data were collected through field observation and questionnaires covering LPG use, household electricity consumption, motor-vehicle ownership, fuel type, and transport-fuel consumption. Carbon emissions were estimated for three activity categories, namely LPG use, electricity consumption, and motorized transportation, using IPCC-based calculation procedures. The results showed that the total carbon footprint of community activities in Kelurahan Batu Kota reached 7,410.98 ton CO₂eq year⁻¹. Transportation was the dominant emission source, contributing 4,546.12 ton CO₂eq year⁻¹ or 61.34% of the total, followed by electricity consumption at 2,432.12 ton CO₂eq year⁻¹ and LPG use at 432.74 ton CO₂eq year⁻¹. Spatially, the carbon footprint was unevenly distributed across neighbourhoods. Lingkungan 5 produced the highest total emissions at 2,646.89 ton CO₂eq year⁻¹ or 35.72% of the total, whereas Lingkungan 4 contributed the lowest share. These findings indicate that the carbon profile of Batu Kota was driven primarily by daily mobility and electricity use rather than by cooking-fuel consumption. The study provides baseline evidence for neighbourhood-based emission management and highlights the importance of place-specific mitigation strategies in urban residential environments. Keywords: carbon footprint; electricity consumption; household emissions; neighbourhood-scale assessment; urban transportation
Assessment Of the Carbon Footprint of Household Activities in Kleak, Malalayang District, Manado City Minanga, Dony T.; Wantasen, Sofia; Lumingkewas, Adeleyda M. W.; Paat, Frangky J.; Rotinsulu, Wiske Ch.; Paulus, Jeanne M.; Pioh, Diane D.; Ogie, Tommy B.
Jurnal Agroekoteknologi Terapan Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.67505

Abstract

Household energy use and private mobility are important sources of greenhouse-gas emissions in urban residential areas. This study assessed the carbon footprint of household activities in Kelurahan Kleak, Malalayang District, Manado City, Indonesia. The study was conducted from January to March 2026 using a field-based survey approach with purposive sampling. A total of 354 households were selected from six neighbourhood units (lingkungan). Primary data were collected through direct observation and questionnaires covering LPG consumption, electricity use, vehicle ownership, fuel type, and fuel consumption. Carbon emissions were estimated for three major household-related sources, namely LPG use, electricity consumption, and private transportation fuel use, using IPCC-based emission calculation methods. The results showed that the total household carbon footprint of Kelurahan Kleak reached 6,599.65 ton CO₂eq year⁻¹. Transportation fuel was the largest contributor, accounting for 3,609.97 ton CO₂eq year⁻¹, followed by electricity consumption at 2,613.89 ton CO₂eq year⁻¹, while LPG use contributed 375.80 ton CO₂eq year⁻¹. Among the six neighbourhoods, Lingkungan 6 produced the highest total emissions at 2,123.05 ton CO₂eq year⁻¹, equivalent to 32.17% of the total carbon footprint. These findings indicate that household carbon emissions in Kelurahan Kleak were driven primarily by private mobility and electricity use rather than cooking fuel consumption. The study provides baseline evidence for neighbourhood-scale carbon management and highlights the importance of community-based mitigation strategies in urban residential environments. Keywords: carbon footprint; electricity consumption; household activities; LPG use; transportation fuel
Co-Authors Adrien Jems Akiles Unitly Arthur G. Pinaria Claudhio, Jehezkiel K. Diane D. Pioh, Diane D. Frangky J. Paat Jeanne M. Paulus Jemmy Najoan, Jemmy Minanga, Dony T. Noeng, Masshynio Ch. A. Ogie, Tommy B. Porong, Jelie Viekson Rotinsulu, Wiske C. Sandra E. Pakasi Sandra Pakasi Selvie Tumbelaka Sofia Wantasen Wiske Rotinsulu