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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Maya Melati
Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University (Bogor Agriculture University), Jl. Meranti, Kampus IPB Dramaga, Bogor 16680, INDONESIA
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Plant growth, fruit production, and total terpenoid production in bitter melon (Momordica charantia L.) with guano fertilizer application Anna Moslihat Jamil; Maya Melati; Sandra Arifin Aziz
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 52 No. 3 (2024): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v52i3.60164

Abstract

Bitter melon (Momordica charantia L.) is valued for its anti-diabetic properties due to terpenoid compounds like charantin, but production struggles to meet market demands. This study aimed to analyze the response of plant growth characteristics, fruit production, and terpenoid compound production in bitter melon fruit by improving phosphorus availability through guano fertilizer application as additional organic fertilizer in organic cultivation. The experiment was conducted from May to September 2024 at the IPB experimental station in Cikarawang, Bogor, Indonesia. The experiment used a randomized complete block design with varying guano fertilizer doses (0, 152, 304, and 456 g per plant). Observations were conducted on 10 sample plants per experimental unit. The observed characteristics included vegetative and reproductive growth, fruit production, and total terpenoid production. Terpenoid analysis was performed using a colorimetric method with an ELISA reader. The results showed that guano fertilizer significantly affected several plant growth and production variables. Higher doses increased several values of vegetative growth parameters, flower numbers, and fruit production. The 304 g guano per plant yielded the highest concentration and production of terpenoids. This study demonstrates the potential of guano fertilizer to enhance bitter melon growth, yield, and terpenoid content, contributing to improved production to meet market demands. Keywords: net assimilation rate; organic; phosphorus; relative growth rate
Pluchea indica metabolites production under chicken manure application in the rainy season Haya Azharul Jinan; Sandra Arifin Aziz; Maya Melati; Youngkwan Cho; Yulia Rahmah
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 54 No. 1 (2026): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v54i1.71092

Abstract

Indian camphorweed (Pluchea indica), an indigenous vegetable, has promising potential as a cosmetic raw material because of its bioactive compounds. Research on cultivation techniques is relatively underexplored in agronomic research, particularly in fertilization practices for P. indica in the rainy season, a period that is critical for tropical agriculture. This study aimed to determine the optimal chicken manure dosage for the growth and yield of four-month-old Indian camphorweed during the rainy season. The experiment was conducted at IPB University, Indonesia, from November 2023 to February 2024. A randomized complete block design (RCBD) was applied, consisting of four chicken manure dosages: 0, 2.5, 5.0, and 7.5 kg per plant, with three replications. Results showed that chicken manure application was found to enhance vegetative growth, branching, leaf yield, and leaf N and K status, indicating its suitability as an organic nutrient source under high-rainfall conditions. Regression analysis indicated the optimal dosage of chicken manure was 7.00 kg per plant for fresh weight yield at 27 weeks after planting (WAP). Chicken manure application changes the phenolic content and antioxidant capacity, that suggest the trade-offs between yield improvement and certain aspects of functional quality. Keywords: Indian camphorweed; optimum dosage; organic fertilizer
Co-Authors Anna Moslihat Jamil Haya Azharul Jinan Sandra Arifin Aziz Youngkwan Cho Yulia Rahmah