Article Per Year (5 Year)
p-Index From 2020 - 2025
0.702
P-Index
This Author published in this journals
All Journal Jurnal Sains Agribisnis Botani: Publikasi Ilmu Tanaman dan Agribisnis Flora: Jurnal Kajian Ilmu Pertanian dan Perkebunan
Astuti, Yohana Th. Maria
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
ANALISIS KEBUTUHAN DAN STRUKTUR KELEMBAGAAN RANTAI PASOK (SUPLY CHAIN) BUAH MANGGIS DI KABUPATEN PANGANDARAN Tarmana, Tarmana; Ismiasih, Ismiasih; Astuti, Yohana Th. Maria
Jurnal Sains Agribisnis Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Sidenreng Rappang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jsa.v5i1.1754

Abstract

Manajemen rantai pasok produk pangan hortikultura berupa buah tropis sangat berpotensi untuk dikembangkan kualitas dan kuantitasnya. Penelitian ini bertujuan untuk menganalisis : aliran rantai pasok buah manggis, margin pemasaran, kebutuhan rantai pasok dan kelembagaan buah manggis. Penelitian dilaksanakan di Kecamatan Parigi, Cijulang, Langkaplancar dan Padaherang Provinsi Jawa Barat. Waktu penelitian dilakukan pada Bulan Desember tahun 2022 sampai Bulan Februari 2023. Data terdiri dari data primer yang diperoleh dari hasil pengamatan dan wawancara secara langsung dengan petani manggis, bandar manggis, pemilik usaha beserta karyawan PT. Mega Abadi Buah dan data sekunder yang diperoleh dari literature, dan informasi dari berbagai instansi terkait. Metode analisis menggunakan deskriptif kuantitatif. Berdasarkan hasil penelitian dapat diambil kesimpulan bahwa : 1) Proses rantai pasok buah manggis terdapat 4 buah rantai pemasaran. Rantai pasok buah manggis melibatkan Petani, pengepul/PT/CV, pedagang besar, pedagang kecil, rumah makan dan konsumen akhir, 2) Rantai pasok buah manggis memiliki margin keuntungan sebesar Rp 3.000 sampai 13.000, 3) Rantai pasok yang berjalan di Kabupaten Pangandaran berbentuk kemitraan dengan melibatkan perusahaan ekspor maupun lokal, 4) Rantai pasok buah manggis yang paling menguntungkan adalah rantai pasok ke 4. Hal ini karena dari petani langsung di grade dari mulai super dan grade B, kualitas super akan masuk pasar ekspor, sementara kualitas grade B akan masuk pedagang kecil, jadi untuk konsumen akhir adalah pedagang kecil dan ekpor ke negara-negara Asia Tenggara.
Analisis Penerapan Hatch and Carry Center sebagai Upaya Peningkatan Produktivitas dan Efesiensi Manajemen Buah Kelapa Sawit Yusup Paisol; Gunawan, Sri; Astuti, Yohana Th. Maria; Afiantoro, Febri; Toni Athory Sinaga
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 3 (2025): Oktober: Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i3.475

Abstract

This study aims to analyze the effectiveness of the Hatch and Carry Center (H&C) in increasing the population of Elaeidobius kamerunicus pollinating weevils, fruit set levels, and Fresh Fruit Bunch (FFB) productivity in oil palm plantations at Division 6 Estate SGT 02, PT Kayung Agro Lestari, West Kalimantan. The research was conducted over six months, from July to December 2024, using a quasi-experimental comparative design. The period without H&C (July–December 2023) served as the control, while the period with H&C (July–December 2024) was treated as the intervention, allowing for a clearer analysis of differences before and after program implementation. Primary data were collected through monthly field observations on the number of male and female flowers, weevil populations, fruit set levels, and parthenocarpic fruits, providing consistent information on plant reproductive dynamics. In addition, in-depth interviews and Focus Group Discussions (FGDs) with stakeholders were conducted to identify supporting and inhibiting factors during implementation. Secondary data on FFB production were obtained from company harvest records in both periods to compare productivity trends. Quantitative data analysis employed the t-test to examine significant differences between the control and treatment periods, while qualitative data were thematically analyzed to explore the dynamics of program execution. The combination of both approaches is expected to provide a comprehensive understanding of the effectiveness of H&C as an innovation in oil palm pollination management.
Pengaruh Ketersediaan Bunga Jantan Anthesis terhadap Populasi Kumbang Elaeidobius Kamerunicus dan Dampaknya terhadap Penurunan Jumlah Tandan Parthenocarpy Sinaga, Toni Athory; Astuti, Yohana Th. Maria; Budiharjo, Kadarwati; Afiantoro, Febri; Yusup Paisol
Botani : Publikasi Ilmu Tanaman dan Agribisnis Vol. 2 No. 3 (2025): September: Botani: Publikasi Ilmu Tanaman dan Agribisnis
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/botani.v2i3.470

Abstract

Successful pollination in oil palm depends heavily on the availability of Elaeidobius kamerunicus pollinator insects that require anthesis male flowers as habitat and food sources. This study aimed to analyze the relationship between anthesis male flower availability on E. kamerunicus beetle population and its impact on parthenocarpy bunch formation at PT. Graha Inti Jaya, Central Kalimantan. Observational method with descriptive and correlational approaches was conducted on 484.57 hectares of oil palm plants varieties Socfindo and Lonsum planted in 2007-2008 during February-July 2025 period. Data collection included anthesis male flower census, beetle population monitoring using yellow traps, and parthenocarpy bunch analysis from mill sorting. Data analysis used linear regression, Pearson correlation, and two-way ANOVA with 95% confidence level. Results showed significant relationship between anthesis male flower availability and E. kamerunicus beetle population (R² = 0.728, p < 0.05), where each unit increase of anthesis male flower increased beetle population by 2,667 individuals per hectare. However, relationship between beetle population and parthenocarpy bunches was not significant (R² = 0.114, p > 0.05), indicating complexity of pollination factors. Variety and planting year differences showed no significant effect. This study recommends maintaining anthesis male flower availability >5% per hectare for optimal natural pollinator beetle population.
Efektivitas Atraktan Terhadap Aktivitas Elaeidobius Kamerunicus untuk Meningkatkan Produksi Kelapa Sawit Hanjaya Hanjaya; Astuti, Yohana Th. Maria; Valensi Kautsar
Botani : Publikasi Ilmu Tanaman dan Agribisnis Vol. 2 No. 3 (2025): September: Botani: Publikasi Ilmu Tanaman dan Agribisnis
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/botani.v2i3.468

Abstract

This study aims to examine the effectiveness of attractants on the activity of the pollinating beetle Elaeidobius kamerunicus and its impact on the efficiency of pollination and palm oil (Elaeis guineensis) production at PT Menthobi Makmur Lestari, Lamandau Regency, Central Kalimantan. The study was conducted from May to July 2025 using a factorial randomized block design with two factors: topography (flat 0–8% and hilly 15–25%) and attractant doses (0, 1, 2, and 3 ml/ha) with three replications.The parameters observed included the frequency of E. kamerunicus visits to female flowers and the percentage of fruit set. The results showed that the topography factor, attractant dose, and their interaction significantly affected the number of E. kamerunicus visits and fruit set (p < 0.01). The combination of flat land with high attractant doses resulted in the highest visits (69.04 beetles/spike) and maximum fruit set (75.11%), while the hilly land without attractants showed the lowest results (34.60 beetles/spike; 61.22%). The application of attractants increased fruit set by more than 20% compared to the control, leading to an increase in bunch weight (BJR) of approximately 5.67 kg/bunch, additional production of about 1,151 kg FFB/ha per 1.5 months, and a potential income of Rp 3,683,200/ha, far exceeding the application cost of Rp 211,638/ha. These results indicate that the use of attractants is an effective and efficient agronomic strategy to improve palm oil productivity. Thus, attractants have proven to significantly enhance pollination efficiency and palm oil production, providing substantial economic benefits to farmers and supporting the sustainability of palm oil plantations. This approach offers an applicable and sustainable solution for agricultural practices, which can be applied to various locations with similar topographical conditions.  
Co-Authors Afiantoro, Febri Budiharjo, Kadarwati Hanjaya Hanjaya Ismiasih, Ismiasih Sinaga, Toni Athory Sri Gunawan Tarmana, Tarmana Toni Athory Sinaga Valensi Kautsar Yusup Paisol