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All Journal EUGENIA Jurnal Agroekoteknologi Terapan AGRI-SOSIOEKONOMI COCOS
Jeanne M. Paulus
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences

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Effect of Preservative Solution Composition and Stalk Cut Angle in Maintaining the Shelf Life of Cut Flowers Chrysanthemum (Chrysanthemum morifolium R.) var. Kulo Windi Lanni Timpalan; Beatrix Doodoh; Maria G. M. Polii; Jeanne M. Paulus; Meity R. Rantung; Annatje E. B. Inkiriwang
Jurnal Agroekoteknologi Terapan Vol. 4 No. 2 (2023): EDISI JULI-DESEMBER 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v4i2.49126

Abstract

This study aims to examine the interaction between the composition of the preservative solution and the cut angle of the flower stalk in maintaining the shelf life of cut chrysanthemum flowers and to examine the effect of the composition of the preservative solution in maintaining the shelf life of cut chrysanthemum flowers and to examine the effect of the angle of cut flower stalks in maintaining the shelf life of cut chrysanthemum flowers. This research was conducted from January 2023 to February 2023 at the Genetics and Plant Breeding Laboratory. This study used a completely randomized design (CRD) factorial pattern with 2 factors, namely Factor A consisting of 3 levels with treatment A0: Water, A1: Sugar 25 g/L + Citric Acid 0.15 g/L + Bleach 1 mL /L, and A2: 25 g/L Sugar + 0.4 mL/L Vinegar + 1 mL/L Bleach and Factor B consists of 3 levels with treatment B1: Flat Cut (0Ëš), B2: Slanted Cut (30 Ëš), and B3: Bevel Cut (45Ëš). So that there were 9 treatment combinations and each treatment was repeated 3 times, so 27 experimental units were obtained. Each experimental unit has 2 samples, so that the total number of experimental units is 54 samples. Research data were analyzed using analysis of variance 2 factor ANOVA method with repetition and if it has an effect then it will be continued with the BNT test at the 5% level. The results showed that there was no interaction between the composition of the preservative solution and the cut angle of the flower stalks for all the observed variables. The composition of the preservative solution treatment A2: Sugar 25 g/L + Vinegar 0.4 mL/L + Bleach 1 mL/L had a single significant effect on maintaining the shelf life of cut flowers of chrysanthemum var. Kulo for 16.28 days. The cutting angle of the flower stalk had no significant effect on maintaining the shelf life of the cut chrysanthemum var. Kulo. Keywords: Preservative Solution, Cut Flowers, Chrysanthemum Abstrak Penelitian ini bertujuan untuk mengkaji interaksi antara komposisi larutan pengawet dengan sudut potong tangkai bunga dalam mempertahankan masa pajang bunga potong krisan dan mengkaji pengaruh komposisi larutan pengawet dalam mempertahankan masa pajang bunga potong krisan serta mengkaji pengaruh sudut potong tangkai bunga dalam mempertahankan masa pajang bunga potong krisan. Penelitian ini dilaksanakan pada bulan Januari 2023 sampai Februari 2023 di Laboratorium Genetika dan Pemuliaan Tanaman. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL) pola faktorial dengan 2 faktor, yaitu Faktor A terdiri dari 3 taraf dengan perlakuan A0: Air, A1: Gula Pasir 25 g/L + Asam Sitrat 0,15 g/L + Pemutih 1 mL/L, dan A2: Gula Pasir 25 g/L + Cuka 0,4 mL/L + Pemutih 1 mL/L dan Faktor B terdiri dari 3 taraf dengan perlakuan B1: Potongan Datar (0Ëš), B2: Potongan Miring (30Ëš), dan B3: Potongan Miring (45Ëš). Sehingga terdapat 9 kombinasi perlakuan dan setiap perlakuan diulang sebanyak 3 kali, maka didapatkan 27 satuan percobaan. Setiap satuan percobaan terdapat 2 sampel, sehingga total keseluruhan satuan percobaan terdapat 54 sampel. Data penelitian dianalisis dengan menggunakan analisis ragam metode ANOVA 2 Faktor dengan pengulangan dan apabila berpengaruh maka akan dilanjutkan dengan uji BNT pada taraf 5%. Hasil penelitian menunjukkan tidak terdapat interaksi antara komposisi larutan pengawet dengan sudut potong tangkai bunga terhadap semua variabel pengamatan. Komposisi larutan pengawet perlakuan A2: Gula Pasir 25 g/L + Cuka 0,4 mL/L + Pemutih 1 mL/L berpengaruh nyata secara tunggal dalam mempertahankan masa pajang bunga potong krisan var. Kulo selama 16,28 hari. Sudut potong tangkai bunga tidak berpengaruh nyata dalam mempertahankan masa pajang bunga potong krisan var. Kulo. Kata Kunci: Larutan Pengawet, Bunga Potong, Krisan
Spatial Mapping And Analysis Of The Harvest Time Determination Of Paddy (Oryza sativa L.) Using The Thermal Unit Of The Southeast Minahasa Regency: Rombe, Nadia Jovanka; Rogi, Johannes E. X; Paulus, Jeanne M.; Paat, Frangky J.
Jurnal Agroekoteknologi Terapan Vol. 5 No. 1 (2024): EDISI JANUARI-JUNI 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v5i1.54044

Abstract

Climate change since 2019 has had a significant impact on paddy plant growth, presenting new challenges in optimizing food production. An effective approach in determining the harvest timing is the Thermal Unit Concept, which takes into account the accumulation of daily temperature during the rice plant's growth. Spatial mapping using Geographic Information System (GIS) is employed to analyze land conditions and heat requirements in paddy cultivation. The mapping results are valuable for planning, cultivation, governmental policy-making, and dissemination to farmers. This research was conducted from August to November in the Rasi Village, Southeast Minahasa, North Sulawesi Province. Data collection involved observing the phenology of rice plants, recording coordinates of planting and harvesting locations, and digitizing Landsat images using SAS Planet and ArcGIS 10.8. Daily temperature analysis was carried out to obtain thermal unit values. The digitized map revealed the paddy field area in Southeast Minahasa Regency to be 3,002.621 hectares, distributed across all sub-districts. The sub-district with the largest paddy field area was North Tombatu, covering 521.362 hectares, while South Touluaan had the smallest area at 32.142 hectares. The Thermal Unit analysis indicated that Southeast Minahasa Regency/Rasi requires 1,285.11 thermal units, with varying heat requirements in each growth phase. During the seeding-planting phase, paddy plants need 292.79 °C, seedling-transplanting 460.04 °C, seedling-anthesis, and heading 217.57 °C, and during the anthesis and heading-harvest phase, paddy plants require 314.71 °C. Keywords: Spatial Mapping, Thermal Unit, Paddy (Oryza sativa L.) Abstrak Perubahan iklim yang terjadi sejak tahun 2019 telah memberikan dampak signifikan pada pertumbuhan tanaman padi, menghadirkan tantangan baru dalam mengoptimalkan produksi pangan. Pendekatan efektif dalam menentukan waktu panen adalah Konsep Thermal Unit, yang memperhitungkan akumulasi suhu harian selama pertumbuhan tanaman padi. Pemetaan spasial menggunakan Sistem Informasi Geografis digunakan untuk menganalisis kondisi lahan dan kebutuhan panas dalam pertanian padi. Hasil pemetaan ini berguna untuk perencanaan, pembudidayaan, serta pengambilan kebijakan pemerintah dan disosialisasikan kepada petani. Penelitian ini dilaksanakan pada bulan Agustus – November di Desa Rasi, Minahasa Tenggara Provinsi Sulawesi Utara. Pengumpulan data penelitian dilakukan dengan pengamatan fenologi tanaman padi, mengambil titik koordinat lokasi dan waktu/tanggal semai-panen tanaman padi, kemudian dilakukan digitasi Citra Landsat, Sas Planet ArcGIS 10.8 dan menganalisis suhu harian untuk mendapatkan nilai thermal unit. Hasil digitasi peta mendapatkan luas sawah di kabupaten Minahasa Tenggara sebesar 3.002,621 ha yang tersebar diseluruh kecamatan yang ada di Minahasa Tenggara, Kecamatan yang memiliki luas lahan sawah terbesar yaitu kecamatan Tombatu Utara sebesar 521,362 ha, sedangkan untuk kecamatan dengan luas lahan terkecil yaitu Touluaan Selatan sebesar 32,142 ha. Hasil analisis Thermal Unit menunjukan bahwa kabupaten Minahasa Tenggara / Rasi : 1.285,11 d0C, dengan jumlah kebutuhan panas yang berbeda-beda disetiap fasenya. Pada fase semai – tanam, tanaman padi memerlukan 292,79 d0C, tanam-anakan 460,04 d0C, anakan – anthesis dan bunting 217,57 d0C, serta pada fase anthesis dan bunting – panen tanaman padi memerlukan 314,71 d0C. Kata Kunci : Pemetaan Spasial, Thermal Unit, Padi (Oryza sativa L).
The Effects of Substituting Straw Compost for NPK Fertilizer On Field Rice Growth and Yield Using The SRI (System of Rice Intensification) Method Rantung , Rantung; Paulus, Jeanne M.; Supit, Paula C. H.; Ogie, Tommy B.; Lengkong, Edy F.; Walingkas, Stanley A. F.; Inkiriwang, Annatje E. B.; Doodoh, Beatrix; Pangemanan, Ventje; Najoan, Jemmy; Polii, Maria G. M.; Tulung, Stella Maria Theresia
Jurnal Agroekoteknologi Terapan Vol. 5 No. 1 (2024): EDISI JANUARI-JUNI 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v5i1.54192

Abstract

With an agroecological philosophy, the SRI (System of Rice Intensification) technique is a rice production technology approach that prioritizes soil, plant, and water management through local expertise and group empowerment based on environmentally beneficial activities. The purpose of this study is to investigate lowland rice growth and yield by using composted straw instead of NPK fertilizer. Implemented in Tara-Tara II village, West Tomohon sub-district for 5 (five) months with one factor treatment, namely the ratio of NPK fertilizer dose and straw compost dose: 100% NPK + straw compost 0% straw compost (P0), 75% NPK + 25% straw compost (P1), 50% NPK + 50% straw compost (P2), 25% NPK + 75% straw compost (P3), and 0% NPK + 100% straw compost (P4). The variables observed included: plant height, number of fodder, number of panicles/clumps, weight of 100 harvested dry grains, number of grains/panicles, percentage of smooth grains/clumps and harvested dry grain yield. Substitution of NPK fertilizer with compost straw has no effect on the height of lowland rice plants using the SRI (System of Rice Intensification) method, but does affect the number of productive tillers. The highest number of productive tillers was found in P2 (50% NPK + 50% straw compost), P3 (25% NPK + 75% straw compost) and P4 (0% NPK + 100% straw compost), with an average value of 31, respectively. 27; 28.20 and 27.53 tillers, while treatment P3 (25% NPK + 75% straw compost) and lower values in treatments P0 (100% NPK + 0% straw compost) and P1 (75% NPK + 25% straw compost ) with an average value of 25.83; and 25.67 offspring. Keywords: System of Rice Intensification (SRI), rice, straw compost.
Respons Pertumbuhan Dan Hasil Tanaman Kedelai Pada Konsentrasi Plant Growth Promoting Rhizobacteria (PGPR) Dari Akar Bambu (Bambusa sp.) Mustafa, Putri Alfa; Paulus, Jeanne M.; Polii, Maria G.M.
AGRI-SOSIOEKONOMI Vol. 19 No. 1 (2023): Agri-Sosioekonomi
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.471 KB) | DOI: 10.35791/agrsosek.v19i1.46755

Abstract

This study aims to determine the response of soybean plants to the application of PGPR (Plant Growth Promoting Rhizobacteria) from bamboo roots and to obtain the best concentration of PGPR from bamboo roots to increase soybean growth and yield in Sendangan Village, Sonder District, Minahasa Regency. This research was conducted for 3 months, from July to October 2022. The data analysis method used in this study was Anova analysis (Analysis of Variance). The design of this study used a randomized block design (RBD) consisting of 5 treatments and 4 replications so that there were 20 plots, namely treatment P0 0 ml/water, P1 PGPR concentration 10 ml, P2 PGPR concentration 20 ml, P3 PGPR concentration 30 ml, P4 PGPR concentration 40 ml so that there are 20 plots. The variables observed were plant height, number of branches, number of pods, number of root nodules, and production per plot. The results showed that giving PGPR from 4 treatments P0 0 ml/liter of water, P1 10 ml/liter of water, P2 20 ml/liter of water, P3 30 ml/liter of water, and P4 40 ml/liter of water got the best concentration of PGPR bamboo roots at P3 30ml/liter of water, thereby increasing the growth and yield of soybeans.
PEMANFAATAN ABU PENGASAPAN KOPRA PADA TANAMAN BAYAM (Amaranthus sp) Mandagi, Vanessa; Sumayku, Bertje R.A; Pamandungan, Yefta; Paulus, Jeanne M.; Sompotan, Saartje; Tulung, Stella M.T.
EUGENIA Vol. 30 No. 3 (2024): Eugenia
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.v30i3.58727

Abstract

Spinach (Amaranthus sp) is a plant belonging to the Amaranthaceae family. Spinach is one of the oldest food plants in the world originating from America, which has been cultivated around 6700 years BC and is now spread throughout tropical and subtropical areas throughout the world. Copra fumigation ash contains macro and micro nutrients that plants need, one of which is potassium. This research aims to determine the effect of copra fumigation ash on the growth of spinach plants. This research was carried out at the Green House, Faculty of Agriculture, Sam Ratulangi University, Manado, North Sulawesi from June to July 2024. This research used a Randomized Group Design (RAK) with six treatments and four replications consisting of Without Ash Copra Fumigation (K0), 5 tons Copra Fumigation Ash/ha (K1), 10 tonnes of Copra Fumigation Ash/ha (K2), 15 tonnes of Copra Fumigation Ash/ha (K3), 20 tonnes of Copra Fumigation Ash/ha (K4) and 25 tonnes of Copra Fumigation Ash/ha ( K5). The research data were analyzed using the F test using the Microsoft Office Excel program to determine the effect of copra fumigation ash treatment on the growth of spinach plants. The research results showed that copra fumigation ash had a significant effect on the variable height of spinach plants but not on the number of leaves and width of spinach leaves. Copra fumigation ash also has a very significant effect on the fresh weight of spinach plants. It is recommended to use copra ash at a dose of 20 tons/ha as the recommended dose for spinach cultivation activities.
Co-Authors Abd. Rasyid Syamsuri Albert T.H. Samosir Albert T.H. Samosir, Albert T.H. Andrew Paat Andrew Paat, Andrew Annatje E. B. Inkiriwang Beatrix Doodoh Benjamin H. Mailangkay Deanne A. Kojoh Deanne A. Kojoh, Deanne A. Doodoh, Beatrix Doortje M.F. Sumampow Edy F. Lengkong Edy Lengkong Frangky J. Paat Frieda F. Moningka Inggrit Z. Tuwaidan Inkiriwang, Annatje E. B. Jemmy Najoan Jemmy Najoan, Jemmy Johannes E. X. Rogi Mamentu, Mifta Mandagi, Vanessa Maria G. M. Polii Maria G.M. Polii, Maria G.M. Meity R. Rantung Mustafa, Putri Alfa Ogie, Tommy B. Polii, Maria G. M. Polii-Mandang, J. Sh. Rantung , Rantung Rogi, Johannes E. X Rombe, Nadia Jovanka saartje Sompotan Selvie Tumbelaka Semuel D. Runtunuwu Setiaaji, Amalia S. Silvani Wardi Stella M.T. Tulung Sumampow, Doortje M. F. Sumayku, Bertje R.A Supit, Paula C. Supit, Paula C. H. Tulung, Stella Maria Theresia Ventje Pangemanan Walingkas, Stanley A. F. Windi Lanni Timpalan Yefta Pamandungan