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All Journal Jurnal Agroekoteknologi Terapan AGRI-SOSIOEKONOMI
Raintung, Jeane S.M.
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences

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Peranan Poliembrioni Terhadap Produksi Benih Pada Tanaman Jeruk Siam (Citrus nobilis L.) Piri, David Gilbert Young; Raintung, Jeane S.M.; Walingkas, Stanley A.F.
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 (292.765 KB) | DOI: 10.35791/agrsosek.v19i1.46757

Abstract

This study aims to determine the growth of polyembryonic seeds in Siamese oranges and to study the growth of seedlings from polyembryonic seeds which will be used as good seeds in overcoming the problem of availability of Siamese orange seeds. The research was carried out from May to October 2022 at the Green House of the Faculty of Agriculture, Sam Ratulangi University and Eris Village, Eris District. The research method used a randomized block design (RBD) with 5 treatments repeated 4 times and found a total of 20 treatments, namely Z11, Z12, Z13, Z14, P21, P22, P23, P24, P31, P32, P33, P34, B21, B22, B23 , B24, B31, B32, B33 and B34. Data analysis used ANOVA analysis (analysis of variance). If it has no effect, then proceed with the BNT test at the 5% test level. The results showed that the growth of Siamese orange sprouts resulted in the growth of embryos up to 6 intact in one seed. Polyembryony, the ability to germinate seeds above 80.00% is one of the conditions for seeds to be recommended for seed sources 20.95%.
Effects of Moringa (Moringa oleifera L.) Leaf Liquid Organic Fertilizer and NPK Dose on Cauliflower Growth and Curd Yield in Tomohon, Indonesia. Tulung, Stella Maria Theresia; Supit, Paula Clara Heinny; Raintung, Jeane S.M.; Sompotan, Saartje; Porong, Jelie Viekson
Jurnal Agroekoteknologi Terapan (JAT) 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.v7i1.66767

Abstract

Cauliflower (Brassica oleracea var. botrytis) production in tropical highlands often depends on high mineral fertilizer inputs, yet integrated nutrient management using locally available organic biostimulants may improve growth and yield while supporting soil quality. This study evaluated the effects of moringa (Moringa oleifera) leaf liquid organic fertilizer (POC) concentration and NPK compound fertilizer dose on cauliflower grown in Kakaskasen, Tomohon City, North Sulawesi, Indonesia (May–October 2025). A 3 × 3 factorial experiment was arranged in a randomized block design with three replications (27 experimental units). POC concentrations were 0, 100, and 200 mL L⁻¹, and NPK doses were 0, 100, and 200 kg ha⁻¹; chicken manure (10 t ha⁻¹ equivalent) was applied as a basal input. Plant height, leaf number, and curd weight were assessed at harvest (~70 days after transplanting) and analyzed by ANOVA followed by LSD (5%). No interaction between POC concentration and NPK dose was detected for the reported variables. Increasing POC significantly improved plant height and leaf number, with 200 mL L⁻¹ producing the tallest plants (40.00 cm) and the highest leaf number (16.11 leaves plant⁻¹). Curd weight increased markedly with POC from 112.47 g (0 mL L⁻¹) to 192.93 g (200 mL L⁻¹). NPK significantly increased plant height and curd weight, with the highest curd weight at 200 kg ha⁻¹ (174.77 g), while the NPK effect on leaf number was not significant. Overall, 200 mL L⁻¹ moringa-leaf POC combined with adequate NPK supply is recommended for further field-scale validation under Tomohon conditions. Keywords: Brassica oleracea; integrated nutrient management; liquid organic fertilizer; Moringa oleifera; NPK fertilizer
Co-Authors Piri, David Gilbert Young Porong, Jelie Viekson saartje Sompotan Stanley A.F. Walingkas Supit, Paula Clara Heinny Tulung, Stella Maria Theresia