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Caraka Tani: Journal of Sustainable Agriculture
Published by Universitas Sebelas Maret
ISSN : 26139456     EISSN : 25992570     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Caraka Tani: Journal of Sustainable Agriculture publishes original articles, review articles, case studies and short communications on the fundamentals, applications and management of Sustainable Agriculture areas in collaboration with Indonesian Agrotechnology / Agroecotechnology Association (PAGI), Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network), and Indonesian Agricultural Higher Education Communication Forum (FKPTPI). This journal has two issues in a year and it will be published in April and October.
Arjuna Subject : -
Articles 17 Documents
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Search results for , issue "Vol 39, No 1 (2024): April" : 17 Documents clear
Potato Virus Y and Shallot Latent Virus of Kajoran Horticultural Production Center, Magelang Regency, Indonesia: Molecular Characterization Case Study Adyatma Irawan Santosa; Adenisa Hanifah Irbati; Krisnanda Surya Dharma; Belinda Winona; Reko Saputra Jaya; Annisa Lisa Andriyani; Chilya Qurrota A'yun
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.76737

Abstract

Kajoran Sub-district is a horticultural production center that supplies horticultural commodities for Central Java Province, especially Magelang. However, plant viral diseases of Kajoran have not been studied. This paper aimed to identify plant viral diseases in this horticultural production center. Some samples were taken: three potatoes (Solanum tuberosum) and three shallots (Allium cepa var. aggregatum), then tested respectively with RT-PCR, using two pairs of universal primers to detect Potyvirus and Carlavirus. The result showed two potato samples were infected by Potyvirus (potato virus Y/PVY) and three shallot samples by Carlavirus (shallot latent virus/SLV). GenBank accession no. OR180052 to OR180056 were assigned to the obtained partial sequences of the five isolates. The phylogenetic analysis makes the two new PVY Indonesian isolates in strain N group thus confirmed the presence of the first PVYN in Indonesia. The constructed SLV phylogenetic tree clusters the new three isolates with eight shallot isolates in a group and separated it from isolates from other plant species. The tested PVY isolates shared 95.2 to 100% nucleotide identities among them, while 78.9 to 98.5% identities were estimated among compared SLV isolates. This study expands our understanding of the genetic variation of PVY and SLV in Indonesia, potentially leading us to find the perfect management for the viruses.
Diversity of Knowledge-Sharing Behavior to Encourage the Practice of Robusta Coffee Red-Picking (Case Study of Temanggung Robusta Coffee Farmer, Indonesia) Hanifah Ihsaniyati; Sarwititi Sarwoprasodjo; Pudji Muljono; Dyah Gandasari
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.82647

Abstract

Red-picking is the key to good coffee quality and is essential for increasing farmers’ income, added value, competitiveness, and development. Knowledge-sharing is one solution to improve the knowledge confidence of farmers and the reach of dissemination of red-picking practices. This research aims to determine the diversity of knowledge-sharing behavior related to red-picking practices according to farmers’ socio-economic status. This research was conducted in a constructivist paradigm with a qualitative approach and case study strategy. According to specific characteristics, seven primary informants were determined by staged, purposive, and peer group discussions. Temanggung coffee stakeholders take part as supporting informants. Interviews, focus group discussions, social media and document observations, expert discussions, peer group discussions, literature reviews, and documentation were used to collect research data. The data were analyzed qualitatively using the NVivo 12 Plus. Research has found that diversity of knowledge-sharing tends to encourage red-picking practices. The research findings also stated that group farmers with an area of land ≤ 1 ha, younger generation group farmers, group farmers with roles as gathering traders, and group farmers who use social media have more diverse knowledge-sharing behaviors. The practice of red-picking can be encouraged by supporting farmers in carrying out knowledge-sharing activities with other farmers with different characteristics. This study implies that the resulting findings will enrich the concept of knowledge-sharing by describing how people utilize social and offline media in sharing knowledge to encourage red-picking practices.
Traditional Ecological Knowledge and Farm Household Resilience to Natural Hazards Arini Wahyu Utami; Nadila Puspa Arum Widjanarko; Didik Indradewa; Aura Dhamira; Mutiarra Ridyo Arum; Fathi Alfinur Rizqi; Nurul Amri Komarudin; Din Prabaningtyas
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.79774

Abstract

This study portrays the roles of Traditional Ecological Knowledge (TEK) in the mitigation of natural hazards. Menoreh Hill in Kulon Progo experienced more than 200 landslides in 2022 and its communities implemented TEK to mitigate them. Hence, this research quantitatively analyzes the role of agriculture-related TEK, especially those applied in hilly areas, to support household resilience to natural hazards. Authors surveyed 106 farm households and interviewed eight key informants in Banjararum and Sidoharjo Villages, Kalibawang and Samigaluh Sub-districts, Kulon Progo Regency, D.I. Yogyakarta. The data were then analyzed using descriptive statistics and binary logistic regression. The descriptive statistics showed that farmers in both villages are highest in practicing alley cropping and integrated farming, while also applying mixed cropping, multiple cropping and locally based planting schedule (pranata mangsa). From binary logistic regression, authors found that TEK practices of multiple cropping, alley cropping and pranata mangsa support farm household resilience to natural hazards, especially landslides. The TEK practices serve as sources of buffer and adaptation capacity in the development of farm household resilience. Interestingly, mixed cropping and membership in farmer groups tend to weaken resilience, as mixed cropping often complicates the recovery efforts in the farmlands, and farmers’ groups are not conditioned to act promptly during hazards or disasters. While TEK has been proven to take roles in the mitigation and adaptation to natural hazards, there is a need to integrate scientific knowledge to improve its optimum benefits.
Utilization of Stenotrophomonas koreensis and Bacillus amyloliquefaciens for Improving Growth, Reducing Nitrogen Fertilization and Controlling Bipolaris sorokiniana in Wheat Md. Motaher Hossain
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.79208

Abstract

Wheat (Triticum aestivum L.), a vital cereal, faces significant challenges from common root rot and spot blotch diseases caused by Bipolaris sorokiniana. This study aimed to explore the potential of plant growth promoting rhizobacteria (PGPR) to enhance wheat growth, reduce fertilizer input, and combat Bipolaris diseases. Two PGPR isolates, selected for their superior antagonistic properties, were identified as Stenotrophomonas koreensis RB11 and Bacillus amyloliquefaciens RB12. These PGPR strains displayed multiple plant growth promoting and biocontrol attributes, including phosphate solubilization, indole-3-acetic acid production, nitrogen fixation and antagonism against B. sorokiniana and other fungi. Wheat seed priming with the PGPR significantly improved germination, plant growth, nutrient content and biomass carbon accumulation in the rhizosphere soil. Importantly, the application of RB11 and RB12 allowed for a 25% and 50% reduction in nitrogen fertilizer usage, respectively, without compromising the yield. RB11 and RB12 also demonstrated potent inhibitory effects on B. sorokiniana conidial germination and significantly controlled common root rot and spot blotch in wheat, similar to those observed with the fungicide Protaf 250EC. Overall, this study underscores the multifaceted roles of S. koreensis RB11 and B. amyloliquefaciens RB12 in promoting wheat growth, reducing fertilizer inputs and effectively suppressing wheat pathogens. These findings contribute to the development of PGPR-based strategies for sustainable crop production and disease control.
Pectinase Production by Rhizopus stolonifer A3 Isolated from Apple Peels Siti Lusi Arum Sari; Wida Puspa Tanjung; Klara Rizky Amilia; Ratna Setyaningsih; Artini Pangastuti
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.77610

Abstract

The application of pectinase in industries will continue to be developed. To broaden the applicability of enzyme manufacturing in new industries, more research to investigate pectinolytic microorganisms with high activity and stability is still required. Therefore, this study aimed to obtain pectinolytic fungi that have the potential as pectinase producers. Pectinolytic fungi were isolated from rotten apple peels and selected based on clear zone formation on pectic agar media after cetyl trimethyl ammonium bromide (CTAB) staining. Pectinolytic fungi were identified based on 18S rRNA partial gene sequences and morphological characteristics. Pectinase production used Mandels and Weber medium with citrus pectin 20 g l-1 addition. Pectinase activity was determined based on the measurement of reducing sugars by a colorimetric method. A total of 5 fungal isolates were successfully isolated. All of the isolates had pectinolytic activities with clear zone diameters ranging between 0.99 to 7.32 mm. The isolate A3 showing the highest pectinolytic activity was identified as Rhizopus stolonifer. Microscopically, R. stolonifer A3 showed typical characteristics for Rhizopus, characterized by the presence of rhizoids, stolons and sporangiophores bearing a single spherical sporangium. The pectinase production of R. stolonifer A3 was optimum at initial pH 5.0, temperature 35 °C and incubation period of 3 days with pectinase activity of 14.75 U ml-1. R. stolonifer A3 produced acidic pectinase having optimum activity at pH 5.0 and temperature 50 °C. Thus R. stolonifer A3 has the potential to be used as a producer of acidic pectinase appropriate for use in the processing of fruit products.
Phytohormone-Based Biostimulants as an Alternative Mitigating Strategy for Horticultural Plants Grown Under Adverse Multi-Stress Conditions: Common South African Stress Factors Zenzile Khetsha; Elmarie Van der Watt; Maxson Masowa; Lesetja Legodi; Sanelisiwe Satshi; Lethabo Sadiki; Kenoni Moyo
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.80530

Abstract

Worldwide, it has been recorded extensively that plants are subjected to severe abiotic and biotic stressors. The scientific research community has widely reported that multi-abiotic stressors cause horticultural crop losses, accounting for at least 50 to 70% of the crop yield and quality losses. Therefore, this review focused on the detrimental effects caused by abiotic stress factors occurring in single-, combined- and multi-cell stresses on horticultural plants worldwide, along with the best production systems practices for mitigation during and post-single and combined abiotic or multi-stress damages. A conclusion and recommendation could be reached using the pool of research material, which constituted research articles, reviews, book chapters, thesis, research short communications and industrial short communications from at least twenty-five years ago. Findings showed that some of the leading abiotic stresses are single- and combined abiotic stressors like water deficit, salinity, soil pH, phosphate deficiency, wounding, soil density and pot size. Established commercial and smallholder farmers are globally adapting to plant growth regulators and biostimulants as part of their production systems. However, as much as the effectiveness of biostimulants containing humic acids, algal extracts, plant growth-promoting microorganisms and phytohormones has been reported to promote plant development under multi-stress, only a few studies are focusing on organic phytohormone-based biostimulants on horticultural crops grown under adverse multi stress factoring. In conclusion, the review recommends alternative solutions for emerging South African farmers and growers who cannot afford agricultural insurance options and energy alternatives on the common single- and combined abiotic- or multi-stress-factors.
New Challenges and Opportunities of Indonesian Crude Palm Oil in International Trade Andi Amran Sulaiman; Achmad Amiruddin; Abd Haris Bahrun; Kanazawa Yuna; Mathurada Keela
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.81957

Abstract

Indonesia is one of the largest palm oil producers in the world. The palm oil industry must look at the market competition map, starting from competing countries and other export opportunities to absorb palm oil products to increase state revenues. This paper analyzes the new challenges and opportunities for Crude Palm Oil (CPO) in Indonesia in international trade. Analytical tools were Revealed Comparative Advantage (RCA), Revealed Symmetric Comparative Advantage (RSCA), Dynamic Product Export and X-model Potential Export. The results showed that Indonesian and Malaysian palm oil commodities obtained an RCA value of more than 1 and an RSCA value of close to 1. Indonesia is more competitive than Malaysia. The X-model showed that Indonesian CPO market share optimism is only in India and the rest is less potent. Malaysian CPO market share also has less potential. Therefore, Indonesia’s new challenges are export tariffs, obstructed access, insufficient downstream production and a black campaign. The opportunity for participation in the CPO export market is only in India compared to Malaysia, which has less potential. The two countries have less potential in destinations such as the Netherlands, USA, China and Kenya. Indonesia can take external policies by establishing cooperation with export destination countries, such as trade agreements, so that information about Indonesian palm oil is well received. Meanwhile, internal policies strengthen domestic downstream industry policies, such as the food, health, and renewable energy industries, to strengthen the domestic economy and improve the welfare of Indonesian palm oil farmers.

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