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All Journal Techno LPPM Jurnal AGROSAINS dan TEKNOLOGI AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Biologi Tropis AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Indonesian Community Journal Jurnal Riset Perkebunan (JRP) Agroista: Jurnal Agroteknologi Buletin Dharmas Andalas
Avianto, Yovi
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Analyzing the Influence of Altitudinal Gradients on Clove Physiology and Yield in the Menoreh Highlands Avianto, Yovi; Pratama, Ananta Bayu; Noviyanto, Amir; Fauzi, Firman Rahmat
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7562

Abstract

Clove (Syzygium aromaticum) is a significant industrial crop commodity in Indonesia whose yield and essential oil quality are influenced by altitude. Variations in altitude lead to differences in microclimatic conditions, which in turn affect plant physiological activities and productivity. This study aimed to investigate the impact of altitude on the physiological activity, yield, and essential oil content of clove plants. The research was conducted in the lower (345 m asl), middle (612 m asl), and upper (872 m asl) zones of the Menoreh Highlands from March to August 2022. Results indicated that altitude significantly influenced microclimatic conditions, thereby affecting the physiological status and yield of clove plants. The middle zone exhibited optimal physiological performance and flower yield, with a balanced rate of photosynthesis and transpiration. Higher proline levels in the lower and upper zones suggested temperature stress, which reduced photosynthetic rate and yield. Essential oil production and eugenol content were also influenced by altitude, with the middle zone yielding the highest oil volume, although eugenol content was higher in the upper zone. Correlation analysis revealed that temperature and relative humidity were the dominant factors determining clove yield and quality.
The Impact of Calcium Supplementation on Physiological Activity and Cherelle Wilt Reduction in Cocoa (Theobroma cacao L.) Avianto, Yovi
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8292

Abstract

Cocoa production in Indonesia has been challenged by declining productivity due to various factors, including cherelle wilt. Cherelle wilt, a condition characterized by the premature dropping of cocoa cherelle, is attributed to hormonal imbalances, nutrient deficiencies, and abiotic stresses. Calcium, as an essential nutrient, plays a crucial role in plant growth and can help mitigate the incidence of cherelle wilt. This study aimed to investigate the efficacy of calcium application in enhancing fruit set and reducing cherelle wilt in cocoa trees. The research was conducted from August 2020 to September 2022 at PT Pagilaran's Segayung Utara cocoa plantation, utilizing the RCC70 clone. Calcium chloride (CaCl2) was applied at rates of 0, 100, 200, 300, and 400 grams per tree per year. Results indicated that calcium fertilization improved the physiological performance of cocoa trees, as evidenced by enhanced chlorophyll fluorescence (Fv/Fm) and photosynthetic rate. These physiological improvements led to increased flower and fruit production, as well as a reduction in the incidence of cherelle wilt, particularly at application rates of 200-400 grams per tree per year. Consequently, overall yield and productivity were significantly increased at these rates.
The Influence of Gibberellin-Rich Phytohormones in Monkey Fern (Cibotium barometz) Extract on Mitigating Cherelle Wilt in Cocoa Plants Saputra, Branmanda Fardhaza; Anggara, Muhammad Tri; Prinandra, Rizkyza; Avianto, Yovi
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8496

Abstract

Cocoa is one of Indonesia’s main export commodities, but its production has declined due to cherelle wilt disease and environmental stress. Gibberellin hormones have been proven effective in preventing cherelle wilt, but their use is limited by high costs. Extracts from monkey fern leaves offer an economical alternative as a natural source of gibberellin. This study aims to examine the effect of monkey fern extract on the development of cocoa cherelles. The research was conducted from January 2024 to January 2025 on smallholder cocoa farms managed by the Hargomulyo farmer group in Gunungkidul. The treatments compared were foliar spraying of monkey fern extract and a control group. The results showed that the application of monkey fern extract increased the number of healthy cherelles compared to the control. Although total chlorophyll content showed no significant difference, low chlorophyll fluorescence values indicated that the plants experienced heat stress. This condition can disrupt photosynthetic efficiency, but the extract still enhanced carbohydrate accumulation in the seeds. Meanwhile, sucrose, reducing sugar, lipid, and protein contents showed no significant changes.
Unraveling the Physiological Mechanisms and Bioaccumulation Efficacy of Lemna perpusilla for Heavy Metal Phytoremediation in Yogyakarta River Wastewater Avianto, Yovi; Riyadi, Fajar; Hasibuan, Selvianyi Br; Nababan, Jeremia Gustian
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4b.10387

Abstract

Heavy metal pollution in Yogyakarta's rivers, caused by textile industries, sand mining, and domestic waste, poses significant environmental and health risks. While conventional water treatment methods face limitations, phytoremediation using Lemna offers a sustainable solution due to its ability to absorb heavy metals efficiently. This study assessed the impact of varying Lemna biomass (control, 20 g, 30 g, 40 g, 50 g per container) on reducing As, Cd, Cr, and Pb in textile, sand mining, and domestic wastewater over three weeks. Heavy metal concentrations were measured using an Atomic Absorption Spectrophotometer (AAS), and Lemna’s growth rates were analyzed using ANOVA followed by Tukey’s HSD. Results showed that Lemna perpusilla effectively adsorbs As, Cd, Cr, and Pb from domestic, sand mining, and batik textile wastewater, with higher biomass leading to improved removal efficiencies. Maximum heavy metal adsorption was observed in batik textile wastewater, achieving over 70% removal for all metals, while domestic and sand mining wastewater showed variable adsorption rates depending on the metal and Lemna biomass. Optimal biomass for growth and adsorption varied: 30 g for domestic, 50 g for sand mining, and 40 g for batik textile wastewater.
Comparison of Various Control Techniques for Clove Stem Borer (Nothopeus hemipterus) in Samigaluh, Kulon Progo Sidiq, Muhamad Fajar; Wisnubroto, Muhammad Parikesit; Handru, Alan; Avianto, Yovi; Putri, Diyona
Jurnal Riset Perkebunan Vol. 6 No. 1 (2025): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.6.1.25-35.2025

Abstract

The clove stem borer (Nothopeus hemipterus) is a major pest causing significant economic losses in clove cultivation. In Samigaluh, most farmers rely on chemical pesticides for control. However, essential oils and entomopathogenic fungi offer safer and more sustainable alternatives. This study aimed to evaluate their effectiveness and determine the most suitable control method. The research was conducted in Kayugedhe Hamlet, Samigaluh, Kulon Progo, Yogyakarta, from April to September 2022. A randomized completely block design was used with different pest control treatments, including chemical pesticides (fipronil, acephate, and profenofos), botanical pesticides (10% neem oil and 10% citronella oil), biological pesticides (Beauveria bassiana at 1 × 10⁸ CFU/mL), and a control. The pesticides were applied using a hydraulic pump and a wax-sealing method on larval entry holes. Larval mortality was recorded weekly for four weeks. The results showed that the application of entomopathogenic fungi (Beauveria bassiana) and citronella oil led to larval mortality rates of 78% and 75%, respectively, which were comparable to the effectiveness of fipronil (80%) and acephate (81%). In contrast, N. hemipterus larvae exhibited lower susceptibility to profenofos, with a mortality rate of only 47%, suggesting potential resistance. These findings indicate that B. bassiana and citronella oil extract could serve as effective and environmentally friendly alternatives for controlling the clove stem borer.
Pengaruh Aplikasi Pupuk Kasgot dan NPK 16:16:16 terhadap Pertumbuhan Bibit LCC (Mucuna bracteata) Anyi, Patrisius; Avianto, Yovi; Rahayu, Enny
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 2 (2025): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i2.1950

Abstract

One of the most crucial phases for successful oil palm plantations is replanting management. One way to suppress weed growth in immature plantations (TBM) is by using tissue culture methods, namely planting legume cover crops (LCC). One type of LCC that grows very quickly is Mucuna bracteata. This study aimed to determine the effect of organic compost and NPK 16:16:16 fertilizer on the growth of Mucuna bracteata LCC seedlings. The study was conducted from October to December 2024 at KP2 INSTIPER Yogyakarta in Wedomartani Village, Depok District, Sleman Regency. The average temperature was 27°C to 30°C, and the elevation was 118 meters above sea level. This study used a completely randomized design (CRD) method with two factors. The first factor was the dose of Kasgot organic fertilizer consisting of four levels, namely control (0 g/plant), 4 g/plant, 8 g/plant, and g/plant. The second factor was the dose of NPK 16:16:16 fertilizer with four levels, namely control (0 g/plant), 2 g/plant, 4 g/plant, and 6 g/plant. The research data were analyzed using the analysis of variance (ANOVA) test at a 5% significance level and the DMRT further test. The results showed that there was no significant interaction between the dose Kasgot fertilizer and NPK fertilizer in influencing the growth of Mucuna bracteata. In addition, none of the treatments had a significant effect on plant growth.
Morphophysiological and Vanillin Quality Evaluation of Vanilla Plants (Vanilla planifolia Andr.) under Water Stress Avianto, Yovi
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 9 No 2 (2025): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v9i2.882

Abstract

Vanilla (Vanilla planifolia Andr.) is a globally popular flavoring cultivated in tropical regions such as Madagascar, Indonesia, and Mexico. Due to global climate change, particularly the El Niño phenomenon, droughts have become more frequent, impacting water availability and quality for vanilla plants. This study addresses these challenges by examining the plant’s responses to drought at a vanilla plantation in Yogyakarta, Indonesia, over two years. A completely randomized design was used, testing five water stress levels (100%, 50%, 25%, 150%, and 200% field capacity). Variables measured included relative water content, physiological activity, chlorophyll, proline content, leaf total acid, photosynthesis efficiency, and morphological traits. Data analysis was performed using ANOVA and Tukey’s HSD test. Vanilla plants exhibited significant physiological and morphological changes in response to varying water conditions. Severe drought (25% water stress) led to reduced relative water content, chlorophyll levels, and CO₂ assimilation, alongside increased proline accumulation. Moderate drought (50% water stress) had a lesser impact. Under field capacity (100%) and excess water (150% and 200%), plants maintained higher relative water content and chlorophyll levels, efficient CO₂ assimilation, and optimal morphological traits. The presence of proline under excess water suggests a dual stress response to drought and waterlogging. Beans from severely drought-stressed plants showed a significant decrease in vanillin content and weight. Identifying and developing vanilla varieties with greater tolerance to water scarcity is essential to ensure sustainable production in the face of climate change.
Co-Authors Afrilia, Devina Alan Handru Anggara, Muhammad Tri Anyi, Patrisius Fajar Riyadi Fauzi, Firman Rahmat Gea, Putra Jaya Hasibuan, Selvianyi Br Hernowo Hernowo Jajang Agus Sonjaya Jaya, Galang Indra Maharani, Wayan Laudya Cintya Marlina Marlina Muhammad Hafizh Muhammad Parikesit Wisnubroto Nababan, Jeremia Gustian Noviyanto, Amir Novyanto, Amir Pratama, Ananta Bayu Prinandra, Rizkyza Putri, Diyona Rahayu, Enny Rahmadani, Ahmad Rahmawati, Lingga Saputra, Branmanda Fardhaza Setyaningsih, Fitrianoor Sidiq, Muhamad Fajar Sidiq, Muhammad Fajar