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All Journal Journal of Agricultural Science and Biotechnology AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) SEAS (Sustainable Environment Agricultural Science) Agriwar Journal Biodiversitas Journal of Biological Diversity
Ni Kadek Desy Andya Dewi
Agrotechnology Department, Faculty Of Agricultural, Science And Technology, Warmadewa University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Energy Environmental Science

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UJI EFEKTIVITAS RIZOBAKTERI SEBAGAIA GEN ANATGONIS Sclerotium rolfsii PENYEBAB PENYAKIT BUSUK BATANG PADA TANAMAN KACANG TANAH (Arachis hypogea L.) Ni Kadek Desy Andya Dewi; Dewa Ngurah Suprapta; Khamdan Khalimi
Journal of Agricultural Science and Biotechnology Vol 8 No 1 (2019)
Publisher : Journal of Agricultural Science and Biotechnology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.778 KB)

Abstract

Groundnut (Arachis hypogea L.) is one of important commodities in Indonesia, however the production of groundnut is still relatively low which ispartly because of the plant disease i.e. stem rot disease caused by Sclerotium rolfsii. Rhizobacteria is one of the solutions to be used as the biological controlagent against S. rolfsii. The aim of this study is to know the effectiveness of rhizobacteria to control stem rot disease caused by S. rolfsii. The results the studyshowed that among 130 isolates of rhizobacteria tested against S. rolfsii, 11 isolates showed inhibitory activity, and among them one isolate, BjTk11 fromexposed the highest inhibitory activity (96.09%) against S. rolfsii. On a green house experiment, treatment with formula of isolate BjTk 11 at doses of 5 g, 10 g,15 g and 20 g per polybag effectively controlled the pre emergence damping off (disease incidence = 0%) while the disease incidence on control was 23.5%. Nopost emergence damping off symptom was observed on groundnut treatment with formula of isolate BjTk11, while the disease incidence on control was 75%. The number of sclerotia in soil of control was 79/gram of soil which is obviously higher than those of treatments. The mode of action the rhizobacteria isolatesBjTk11 in inhibiting the growth of S. rolfsii is through antibiosis where the rhizobacteria produce the antifungal compound Butanedial, R - (-) - 1,2propanediol, 2,3-Butanediol, Isopropyl Alcohol, Acetic acid, anhydride with formic Acid , 2-bromohexane, 4,5-Diamino-6-hydroxypyrimidine, 4H-Pyran-4one, 3-hydroxy-2-methyl and Cyclotrisiloxane, hexamethyl-. The presence of these compounds probably closely related to the inhibitory activity against S. rolfsii.
The Effectiveness of Pruning and Atonic in Improving the Reproductive Development of Coffee Plants Ni Luh Putu Sulis Dewi Damayanti; I Gusti Bagus Udayana; Yohanes Parlindungan Situmeang; Ni Kadek Desy Andya Dewi
SEAS (Sustainable Environment Agricultural Science) Vol. 10 No. 1 (2026)
Publisher : Warmadewa University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/seas.10.1.14303.13-19

Abstract

Decline in Arabica coffee productivity in the Kintamani highlands indicates agronomic constraints affecting the plant's reproductive phase. Pruning and the application of growth regulators are two essential approaches to improving the physiological balance that supports flower and fruit formation. This study aims to assess the effectiveness of pruning and Atonik application in promoting shoot, leaf, flower, and fruit-bud growth in Arabica coffee plants. The study was conducted over 12 weeks using a factorial design with a combination of pruning treatments and several Atonik dosage levels. Data were analysed using ANOVA and follow-up tests to determine the differences between treatments. The results showed that pruning consistently increased shoot regeneration and improved canopy structure, thereby optimising light capture efficiency and photosynthetic product distribution. The Atonik application strengthened the plants' physiological response by increasing meristem activity and nutrient absorption. The combination of both treatments produced the highest number of flowers and fruit buds compared to either treatment alone. Scientifically, these findings indicate that the enhancement of the generative phase is highly dependent on vegetative conditions, which are strengthened by canopy management and hormonal stimulation. This study makes an essential contribution to the development of coffee cultivation strategies that integrate pruning practices and hormone regulation to sustainably increase productivity.
Effects of Eco-Enzyme Concentrations and Growing Media on the Growth Performance of Pakcoy Microgreens Ni Kadek Desy Andya Dewi; Adellia Novianti; I Gusti Bagus Udayana; I Nengah Muliarta; Ni Luh Putu Sulis Dewi Damayanti
SEAS (Sustainable Environment Agricultural Science) Vol. 10 No. 1 (2026)
Publisher : Warmadewa University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/seas.10.1.14317.74-81

Abstract

Microgreens are young vegetable seedlings valued for their high nutritional content and rapid growth cycle. Pakcoy microgreens (Brassica rapa chinensis L.) have strong potential for sustainable urban agriculture. This study aimed to evaluate the effects of different eco-enzyme concentrations and growing media on the growth performance of pakcoy microgreens. The experiment was conducted using a factorial completely randomized design with two factors: eco-enzyme concentration and growing media type. Several growth parameters were observed, including plant height, number of leaves, fresh weight, and overall growth vigor. The results showed that both eco-enzyme concentration and growing media not  significantly influenced the growth of pakcoy microgreens. Higher eco-enzyme concentrations generally promoted better vegetative growth, particularly when combined with suitable growing media. The interaction between eco-enzyme application and growing media played an important role in optimizing microgreen growth performance. These findings indicate that eco-enzyme can be utilized as an environmentally friendly input to enhance pakcoy microgreen production. The use of appropriate growing media further improves growth outcomes, supporting sustainable and efficient microgreen cultivation systems. This study provides practical insights for small-scale growers and urban farmers seeking to improve microgreen productivity using eco-friendly alternatives.
Biopesticides to Control Anthracnose Disease in Chili Pepper (Capsicum annuum L.): A Review Ni Kadek Desy Andya Dewi; Ni Luh Putu Sulis Dewi Damayanti; Anak Agung Sagung Putri Risa Andriani
Agriwar Journal Vol. 5 No. 2 (2025): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

Anthracnose disease is one of the most destructive diseases affecting chili pepper (Capsicum annuum L.). The impact of anthranose on production worldwide results in significant yield and quality losses during both pre-harvest and post-harvest stages. Control of this disease has relied use traditional technic with synthetic fungicides. Synthetic fungicides have caused pathogen resistance, environmental contamination, and food safety concerns. Therefore, biopesticides are considered an environmentally friendly and sustainable alternative. This review aims to critically summarize recent studies published between 2015 and 2025 on the application of biopesticides to controlling anthracnose disease in chili pepper. Scientific literature was collected from major databases, including Scopus, ScienceDirect, and Google Scholar. The review highlights the effectiveness of biopesticides from microbial and botanical pesticides. Microbial pesticides such as Trichoderma spp., Bacillus, and Pseudomonas spp. Contribute to disease suppression by producing antimicrobial metabolites and inducing systemic resistance in host plants. Botanical pesticides based on plant extracts and essential oils have antifungal activity by inhibiting spore germination, disrupting fungal cell structures, and antimicrobial chemical compounds. Although biopesticides potential to control anthracnose disease, but remains inconsistent due to environmental factors and formulation constraints. Therefore, improved formulation technologies and integration into integrated disease management strategies are essential to enhance their reliability and adoption in sustainable chili production systems.
Application of Light Color and Lighting Height on the Growth and Yield of Chrysanthemum Cut Flowers (Dendranthema grandiflora Tzelev) Yeo Vinco; I Gusti Bagus Udayana; Made Sri Yuliartini; I Gusti Made Arjana Arjana; Ni Luh Putu Sulis Dewi Damayanti; Ni Kadek Desy Andya Dewi
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 2 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i2.1044

Abstract

Chrysanthemum is a highly valuable commercial cut flower. Providing supplemental lighting at an optimal height is crucial to enhancing plant growth and flower quality. This study evaluated the effects of light color, lighting height, and their interaction on the growth and yield of chrysanthemum (Dendranthema grandiflora). The experiment was conducted in a greenhouse at Agro Pudak Lestari Farm, Buleleng, Bali, utilizing a factorial Randomized Block Design (RBD) with two factors: light color (white [Wp], purple [Wu], and yellow [Wk]) and lighting height (1 m [T1], 2 m [T2], and 3 m [T3]), replicated three times. Although the interaction between the two factors had no significant effect on any of the observed variables, each factor individually exhibited significant to highly significant effects. Yellow light (Wk) yielded superior plant growth, stronger stems, enhanced visual quality, and the highest economic fresh weight at 77.91 g—a 30.9% increase compared to white light (Wp). Meanwhile, a lighting height of 2 meters optimized growth variables by 4.7–7% and increased economic fresh weight by 15.1%. Consequently, applying yellow light at a height of 2 meters is highly recommended to maximize the growth and yield of chrysanthemum cut flowers. Contribution to Sustainable Development Goals (SDGs):SDG 8: Decent Work and Economic GrowthSDG 9: Industry, Innovation, and Infrastructure
Short communication: Coconut fiber mats enhance microbial abundance and vegetation establishment on post-eruption degraded land in Mount Batur, Bali, Indonesia NI KADEK DESY ANDYA DEWI; NI LUH PUTU SULIS DEWI DAMAYANTI; ANAK AGUNG SAGUNG PUTRI RISA ANDRIANI; I GEDE PUTU WIRAWAN
Biodiversitas Journal of Biological Diversity Vol. 27 No. 3 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270330

Abstract

Abstract. Dewi NKDA, Damayanti NLPSD, Andriani AASPR, Wirawan IGP. 2026. Short communication: Coconut fiber mats enhance microbial abundance and vegetation establishment on post-eruption degraded in Mount Batur, Bali, Indonesia. Biodiversitas 27 (3): d270330. https://doi.org/10.13057/biodiv/d270330. Degraded land affected by volcanic eruptions requires specific technologies to support revegetation. In the caldera of Mt. Batur, Bali, Indonesia, mats made from coconut fiber adapted from technology developed by Takino Filter Inc., Japan, were installed on sandy and rocky volcanic substrates to reduce surface soil erosion, limit surface runoff, retain organic matter, increase soil water retention capacity, and create favorable conditions for plant growth. This study aims to evaluate the impact of coconut fiber mats on soil microorganisms, arbuscular mycorrhizal fungus (AMF) and vegetation development in young volcanic soil. This study used exploratory comparative field observation due to limited replications. Soil microorganism abundance, AMF presence, and vegetation development were evaluated using microbiological, mycorrhizal, and molecular approaches. The results showed that the culturable soil microorganisms on PDA increased significantly under coconut fiber mats, reaching 7,976±16.88 CFU g⁻¹, which was much higher than in control plots without mats, which recorded 10.00±2.00 CFU g⁻¹. Four AMF genera (Glomus, Gigaspora, Acaulospora, and Scutellospora) were identified in soil under coconut fiber mats. Vegetation establishment included Gmelina, Leucaena leucocephala, Edelweiss, and grasses. The findings suggest that coconut fiber mats show promising preliminary evidence for enhancing soil biological recovery and promoting revegetation on degraded volcanic landscapes. This study was an exploratory comparative field observation with limited replication and without baseline data; therefore, the findings should be interpreted as associative evidence.
Co-Authors Adellia Novianti Anak Agung Sagung Putri Risa Andriani ANAK AGUNG SAGUNG PUTRI RISA ANDRIANI Dewa Ngurah Suprapta I GEDE PUTU WIRAWAN I Gusti Bagus Udayana I Gusti Bagus Udayana I Gusti Bagus Udayana I Gusti Made Arjana Arjana I Nengah Muliarta Khamdan Khalimi Made Sri Yuliartini Ni Luh Putu Sulis Dewi Damayanti Yeo Vinco Yohanes Parlindungan Situmeang