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Does the Sleman Chili Auction Market Affect the Local, Regional and National Market Prices in Indonesia? Jamhari, Jamhari; Nasir, Muh Amat; Nugroho, Agus Dwi; Ismiasih, Ismiasih; Yonekura, Hitoshi
AGRARIS: Journal of Agribusiness and Rural Development Research Vol 8, No 2: July-December 2022
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/agraris.v8i2.15654

Promoting the horticultural auction market as an alternative outlet is becoming more popular. The horticultural auction market has some benefits, such as reducing price volatility and controlling inflation. This research used a case study in Sleman Regency, which established a horticultural auction market to manage volatile chili prices. The daily price data with ECM-GARCH analysis was used to investigate market integration between the Sleman chili auction market and other markets. The result showed that the Sleman auction market had a beneficial impact on the price decline in the local markets. This impact indicated that the auction market controls inflation at the regional level. However, only 5% to 13% of daily variations of the long-term equilibrium of the auction market to other markets were adjusted. There was information efficiency of the chili prices in Indonesia based on the GARCH model. This study proves that auction markets promote control of macro inflation. This study was the first to manage horticultural product price risk from a chili auction market perspective. Moreover, the model applied in this study expands the ECM-GARCH model to improve the validity of an ECM's significance tests and the efficiency of standard ECM parameter estimation.

Rantai Nilai Kopi dari Sistem Agroforestri di Jawa Barat: Menyeimbangkan Konservasi dan Komersialisasi Widada, Arif Wahyu; Nasir, Muh Amat; Anggraini, Anila Indrianti
Jurnal Ilmu Ilmu Agribisnis: Journal of Agribusiness Science Vol 12, No 4 (2024)
Publisher : Lampung University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jiia.v12i4.9451

Agroforestry, as an agroecological practice that integrates various production components in one system, has become an important approach in organic coffee cultivation in West Java, Indonesia. This study aims to_identify, analyse, and provide a financial assessment of the organic coffee value chain in agroforestry systems in the region. Using a mixed-methods approach, the study involved a survey of 60 agroforestry-implementing organic coffee farmers, in-depth interviews with local market players, and focus group discussions in Bandung and Sumedang districts. Data collection was conducted through purposive sampling for farmers, and snowball sampling for market actors. The results show that in agroforestry systems, farmers integrate coffee with other cash crops, with planting patterns changing from annuals to perennials over time. Smallholders have consistent knowledge of the coffee market, but show high interest in joining cooperatives. Coffee traders with varying scales of business, dominate farm-level sales. Few farmers sell directly to cooperatives or BUMDes. These findings provide important insights into the dynamics of organic coffee value chains in agroforestry systems in West Java, which can inform policy development to improve the economic and ecological sustainability of coffee agroforestry systems. Key words: value chain, coffee, household farmers

Rantai Nilai Kopi dari Sistem Agroforestri di Jawa Barat: Menyeimbangkan Konservasi dan Komersialisasi Widada, Arif Wahyu; Nasir, Muh Amat; Anggraini, Anila Indrianti
Jurnal Ilmu Ilmu Agribisnis: Journal of Agribusiness Science Vol. 12 No. 4 (2024)
Publisher : Lampung University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jiia.v12i4.9451

Agroforestry, as an agroecological practice that integrates various production components in one system, has become an important approach in organic coffee cultivation in West Java, Indonesia. This study aims to_identify, analyse, and provide a financial assessment of the organic coffee value chain in agroforestry systems in the region. Using a mixed-methods approach, the study involved a survey of 60 agroforestry-implementing organic coffee farmers, in-depth interviews with local market players, and focus group discussions in Bandung and Sumedang districts. Data collection was conducted through purposive sampling for farmers, and snowball sampling for market actors. The results show that in agroforestry systems, farmers integrate coffee with other cash crops, with planting patterns changing from annuals to perennials over time. Smallholders have consistent knowledge of the coffee market, but show high interest in joining cooperatives. Coffee traders with varying scales of business, dominate farm-level sales. Few farmers sell directly to cooperatives or BUMDes. These findings provide important insights into the dynamics of organic coffee value chains in agroforestry systems in West Java, which can inform policy development to improve the economic and ecological sustainability of coffee agroforestry systems. Key words: value chain, coffee, household farmers

Molecular Identification of Three Potyviruses Infecting Allium cepa var. aggregatum and Allium sativum in Central Cultivation Areas of Indonesia Santosa, Adyatma Irawan; Nasir, Muh Amat; Çelik, Ali; Farooq, Tahir; Subiastuti, Aprilia Sufi
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.86146

One hundred and twenty shallot (Allium cepa var. aggregatum) and 22 garlic (Allium sativum) samples were collected from major growing regions and markets to determine the distribution and molecular diversity of 3 potyviruses: leek yellow stripe virus (LYSV), onion yellow dwarf virus (OYDV), and shallot yellow stripe virus (SYSV) in Indonesia. The results of reverse transcription-polymerase chain reaction (RT-PCR) showed that 83% of shallot and all garlic samples were infected by at least 1 virus species. Coat protein (CP) region of 8 Indonesian LYSV, 19 OYDV, and 10 SYSV isolates were sequenced and given accession nos. OR772038-OR772082 in NCBI GenBank. Five isolates were recombinants according to analysis using the Recombination Detection Program (RDP v5.30). The phylogenetic tree deduced that 6 LYSV Indonesian and 2 China imported isolates belong to S-type. All tested OYDV isolates, including the 19 isolates, were clustered separately according to their respective hosts: onion and garlic. The 10 Indonesian SYSV isolates were clustered together in the same group and thus shown to be closely related. All isolates tested in this study were estimated to be still within their respective species demarcation according to percentage identity analysis. This was the most comprehensive molecular study on LYSV, OYDV, and SYSV that may help to find sustainable management strategies according to conditions in Indonesia and contribute to the global knowledge on the genetic diversity of the 3 viruses.

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