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All Journal Cropsaver : Journal of Plant Protection Jurnal Fakultas Pertanian Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Agro Kultivasi JURNAL PANGAN Jurnal Agrotek Indonesia Gunung Djati Conference Series Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat
Aep Wawan Irwan
Prodi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Social Sciences Other

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Effectiveness of Tamarind (Tamarindus indica L.) Leaf Water Extract Against Root-Knot Disease (Meloidogyne spp.) on Tomato Plants Sunarto, Toto; Sudarjat, Sudarjat; Irwan, Aep Wawan; Fatonah, Siti
CROPSAVER Vol 8, No 2 (2025)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v8i2.68786

Abstract

Root-knot disease is a major disease that attacks tomato plants. This disease is caused by the Root-knot nematode (Meloidogyne spp.), which can lead to significant losses in tomato crops. Farmers commonly use synthetic nematicides to control these nematodes, but excessive use of chemical agents can have negative effects. Tamarind leaf is a potential alternative that can be used as a botanical nematicide to control the nematodes that cause root-knot disease in tomato plants because it contains various secondary metabolite compounds, such as flavonoids. This research was conducted to determine the effectiveness of various concentrations of tamarind leaf aqueous extract in controlling Meloidogyne spp. nematodes. The experiment was carried out from May to July 2025 in the Plant Nematology Laboratory Division and Greenhouse of the Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran. The experiment used a Randomized Block Design (RBD) with seven treatments and four replications, consisting of a control, tamarind leaf aqueous extract at 2%, 4%, 6%, 8%, 10%, and carbofuran at 2g/tanamn. The results showed that the application of Tamarindus indica leaf water extract was effective in suppressing root-knot disease (Meloidogyne spp.) in tomato plants. T. indica leaf water extract at a concentration of 6% can suppress the number of galls on tomato plant roots by up to 64.91% and can suppress the number of second juvenile (J2) Meloidogyne spp. in 100 ml of soil by up to 71.18%.
Analisis jalur antara dosis pupuk kalium dengan fisiologi, pertumbuhan, dan hasil hanjeli pulut Fiky Yulianto Wicaksono; Qinthara Nail Haysa; Yuyun Yuwariah; Aep Wawan Irwan; Tati Nurmala; Uum Umiyati
Jurnal AGRO Vol. 12 No. 2 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.52192

Abstract

Kalium merupakan unsur hara yang berperan penting pada produksi tanaman serealia, namun peranannya pada tanaman hanjeli pulut (Coix lacryma-jobi L. var. ma-yuen) masih belum diungkapkan dengan jelas. Penelitian ini bertujuan untuk mencari pengaruh langsung maupun tidak langsung pupuk kalium terhadap karakter fisiologi, pertumbuhan, dan hasil tanaman hanjeli. Percobaan dilakukan dari bulan Januari sampai Mei 2024 di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran, pada ketinggian 750 m di atas permukaan laut dengan ordo tanah Inceptisols. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK), yang terdiri dari enam perlakuan dan empat ulangan. Perlakuan yang diberikan adalah dosis pupuk KCl, yaitu 0; 62,5; 125; 250; 375; dan 500 kg ha-1. Pengamatan dilakukan pada indeks kandungan klorofil, konduktansi stomata, indeks luas daun, bobot biomassa, nisbah pupus akar, jumlah srisip, jumlah anakan, jumlah anakan produktif, jumlah malai per anakan, jumlah biji per malai, bobot 100 butir, dan bobot biji per tanaman. Analisis data menggunakan korelasi Pearson dan Analisis Jalur. Hasil penelitian menunjukkan bahwa dosis pupuk kalium berpengaruh langsung terhadap indeks kandungan klorofil, konduktansi stomata, jumlah srisip per anakan, jumlah malai per anakan, jumlah biji per malai, dan bobot biji per tanaman. Pengaruh tidak langsung dosis pupuk kalium terjadi pada komponen pertumbuhan, yaitu tinggi tanaman, jumlah anakan, nisbah pupus akar, dan indeks luas daun, melalui jalur komponen fisiologi. Dosis pupuk kalium juga mempengaruhi jumlah anakan produktif secara tidak langsung melalui jalur komponen fisiologi dan komponen pertumbuhan. Penelitian ini memberikan implikasi bahwa kekurangan kalium dapat dilihat lebih dini melalui pengukuran komponen fisiologi. ABSTRACT Potassium is a nutrient that plays a crucial role in cereal crop production, but its role in Job's tears (Coix lacryma-jobi L.) remains unclear. This study aims to find the direct and indirect effects of potassium fertilizer on the physiological characteristics, growth, and yield of Job's tears. The experiment was conducted from January to May 2024 at the Experimental Garden of the Faculty of Agriculture, Padjadjaran University, at an altitude of 750 m above sea level, with Inceptisols as the soil order. The experimental design employed a Randomized Block Design (RBD), comprising six treatments and four replications. The treatments applied were KCl fertilizer doses, namely 0, 62.5, 125, 250, 375, and 500 kg ha-1. Observations were made on the chlorophyll content index, stomatal conductance, leaf area index, biomass weight, shoot-to-root ratio, number of shoots, number of tillers, number of productive tillers, number of panicles per tiller, number of seeds per panicle, weight of 100 grains, and weight of seeds per plant. Data analysis used Pearson correlation and Path Analysis. The results showed that potassium dose directly affected the chlorophyll content index, stomatal conductance, number of shoots per tiller, number of panicles per tiller, number of seeds per panicle, and seed weight per plant. The potassium dose affected growth components, including plant height, number of tillers, root drop ratio, and leaf area index, indirectly through the physiological component pathway. The dose of potassium fertilizer also affected the number of productive tillers indirectly through the physiological and growth components pathway. The results of this study indicated that early detection of potassium deficiency is possible by assessing physiological components.
RELATIONSHIPS BETWEEN PHYSIOLOGY, GROWTH, AND YIELD OF CEREAL CROPS UNDER WATERLOGGING STRESS Erlinda Diantini; Hidya Nurlita; Aep Wawan Irwan; Fiky Yulianto Wicaksono
Gunung Djati Conference Series Vol. 66 (2026): The International Conference on Perennial Crops 2026
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/gdcs.v66i.3393

Abstract

Global food security is increasingly threatened by abiotic stresses, particularly waterlogging, which poses significant challenges to cereal crop production. Waterlogging is one of the primary abiotic stresses that significantly influence the interrelationships among plant physiology, growth, and yield. This review aims to examine the relationships among these three aspects in cereal crops, with an emphasis on the response mechanisms to waterlogging stress. Findings from the reviewed literature indicate that waterlogged conditions induce hypoxia in the root zone, leading to reduced photosynthetic rates, impaired nutrient uptake, and increased production of reactive oxygen species (ROS), which trigger cellular damage. These effects result in reduced plant growth and yield. Nevertheless, plants exhibit various adaptive mechanisms, such as aerenchyma formation, adventitious root development, and proline accumulation, which enhance tolerance to stress. Variations in tolerance levels among cereal species also influence the extent of yield reduction. Overall, improving plant tolerance to waterlogging stress requires an integrated approach through physiological understanding, genetic improvement, and the application of appropriate agronomic management.
EFFECTS OF POTASSIUM ON MUNG BEAN YIELD COMPONENTS, YIELD, AND YIELD QUALITY UNDER DROUGHT STRESS Zavira Nurul Rachmaniar; Eka Kartina; Aep Wawan Irwan; Fiky Yulianto Wicaksono
Gunung Djati Conference Series Vol. 66 (2026): The International Conference on Perennial Crops 2026
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/gdcs.v66i.3396

Abstract

Mung bean (Vigna radiata L.) is an important crop contributing to global food security. However, its productivity is severely affected by drought stress, particularly during the growth and grain filling stages. Drought stress reduces yield components such as pod number, seeds per pod, and grain weight due to disruptions in physiological and metabolic processes. It also negatively impacts crop quality by limiting nutrient accumulation and grain development. Potassium plays an important role in increasing plant tolerance to drought stress through various mechanisms. At the physiological level, potassium increases the efficiency of photosynthesis, regulates stomatal function, and maintains cellular osmotic balance, allowing plants to maintain turgor and metabolic activity under conditions of water deficit. At the biochemical level, potassium activates antioxidant enzymes that mitigate oxidative damage caused by reactive oxygen species. Furthermore, potassium supports the translocation of assimilates from source to recipient organs, thus promoting pod formation and grain filling. Adequate potassium supply also improves crop quality, including better nutrient content and grain uniformity. The interaction between potassium and water availability exhibits a synergistic effect, with optimal potassium levels increasing water use efficiency and mitigating the negative impacts of drought stress. Therefore, proper potassium management combined with efficient irrigation strategies is crucial for maintaining mung bean productivity and quality under drought conditions, thus supporting a more adaptive and sustainable agricultural system.
EFFECT OF POTASSIUM FERTILIZATION ON PHYSIOLOGYCAL, GROWTH, PHENOLOGY PERFORMANCE OF MUNG BEAN UNDER LOW WATER AVAILABILITY Eka Kartina; Zavira Nurul Rachmaniar; Aep Wawan Irwan; Fiky Yulianto Wicaksono
Gunung Djati Conference Series Vol. 66 (2026): The International Conference on Perennial Crops 2026
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/gdcs.v66i.3406

Abstract

Mung bean (Vigna radiata L.) is an important legume crop that plays a strategic role as a source of plant-based protein, a functional food ingredient, and an adaptive crop widely cultivated in various tropical and subtropical regions. Mung bean are a legume crop with high agronomic potential, mung bean productivity still faces several challenges, particularly due to climate change and rainfall patterns. These environmental changes can reduce water availability in agricultural lands and increase the risk of drought stress. Low water availability is one of the primary limiting factors in mung bean cultivation because it impedes overall plant performance, such as growth, phenological development, and physiological functions. Water deficit can disrupt plant biological processes through reduced tissue water status, impaired nutrient uptake and distribution, decreased metabolic activity, and increased oxidative stress, which eventually leads to reduced productivity. Under drought stress conditions, potassium (K) plays a crucial role as an essential nutrient that helps improve plant tolerance to water limitations. Potassium contributes to maintaining osmotic balance, improve water use efficiency, support physiological stability, and strengthening plant adaptation mechanisms against drought stress. Therefore, proper potassium management can be a potential strategy to improve mungbean resilience and maintain plant performance under low water availability conditions.
Co-Authors Abdulah Hafiz Ade Ismail Ade Ismail Agung Karuniawan Agus Wahyudin Alan Randall Anas Anas, Anas Andala Muhamad Nurdin Anne Nuraini Annisa Sarah Utami Putri Annisa Sarah Utami Putri, Annisa Sarah Utami D. Veronika D. Veronika, D. Damanik, Martha C. Dedi Ruswandi Dedi Widayat Efrida Ariani Eka Kartina Eka Kartina Erlinda Diantini Fadhillah, Farhan Fiky Yulianto Wicaksono Gheanofany Ramadayanty Hidya Nurlita Khairunnisa, Salma Linda Wahyu Setianingrum Linda Wahyu Setianingrum, Linda Wahyu Martha C. Damanik Muhammad Syafi'i Putri, Yuliar Syelvia Qinthara Nail Haysa Randall, Alan Rizka Fitriani Rizka Fitriani Ruminta Ruminta Siti Fatonah Sudarjat Sudarjat T. K. Putri T. K. Putri, T. K. Tati Nurmala Tati Nurmala Tati Nurmala Tati Nurmala Tati Nurmala Tati Nurmala Tati Nurmala Tati Nurmala Tia Dian Nira Tia Dian Nira, Tia Dian Toto - Sunarto Toto Sunarto Toto Sunarto Tyas, Widya Wening Uum Umiyati Wahyu Daradjat Natawigena, Wahyu Daradjat Wahyudin, Agus Warid Ali Qosim Wawan Sutari Yakup Antonius Surbakti Yudithia Maxiselly Yuyun Yuwariah Yuyun Yuwariah Yuyun Yuwariah Yuyun Yuwariah Yuyun Yuwariah Zavira Nurul Rachmaniar Zavira Nurul Rachmaniar