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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Jurnal Ilmu Pertanian BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Journal of Politic and Government Studies Jurnal Sumberdaya Lahan Buletin Palawija Jurnal Teknologi Informasi dan Ilmu Komputer AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Penelitian Karet JOIN (Jurnal Online Informatika) JOIV : International Journal on Informatics Visualization Jurnal AGROSAINS dan TEKNOLOGI Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Journal of Tropical Crop Science Journal of Tropical Horticulture JURNAL AGRONIDA Jurnal Kelautan Nasional Molekul: Jurnal Ilmiah Kimia Jurnal Jamu Indonesia Agroekoteknologi Tropika Lembab Indonesian Journal of Electrical Engineering and Computer Science Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Buletin Palawija Jurnal Risalah Kebijakan Pertanian dan Lingkungan Buletin Agroteknologi Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Jurnal Pusat Inovasi Masyarakat Indonesian Journal of Jamu

Edi Santosa

Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (IPB University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia

Author-ID : 370636

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Social Sciences Veterinary Other

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Cocoa Production Stability in Relation to Changing Rainfall and Temperature in East Java, Indonesia Edi Santosa; Ginanjar Pramudya Sakti; Muhamad Zainul Fattah; Sofyan Zaman; Ade Wahjar
Journal of Tropical Crop Science Vol. 5 No. 1 (2018): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Climate change as indicated by rising temperature and changing rainfall pattern has been known to affect cacao production in many production countries. However, studies on the effects of rainfall and temperature variability on the cacao production are rarely reported in Indonesia. Hence, the objective of this study is to evaluate the stability of cocoa production in relation to rainfall and temperature variability in order to develop sustainable production under climate change scenario. Research was conducted at a state owned company in Jember District, East Java, Indonesia from February to June 2015. Production and climatic data of 2010-2015 were evaluated using simple regression and correlation analysis. Results revealed that productivity fluctuated among months and among years. However, the fluctuation among months (s2 = 117.076) was lower than among years (s2 = 311.225). Rainfall and temperature showed variability among months and among years; and the fluctuation among months was lower in both rainfall and temperature. Rainfall at one to four months before harvest correlated with production (r=0.400-0.671; P= 0.000 to 0.001) and temperature at two to four months before harvest determined cocoa production (r=0.371-0.412; P=0.001-0.003). High monthly cocoa production coincided with decreasing temperature and rainfall for 4 to 5 months during pod development. The presented study implies that both short and long term strategies should be implemented under climatic variability to sustain cocoa production. It is recommended to apply production technology to stabilize micro climate temperature and to minimize the impact of high rainfall such as shade plant and canopy manipulation.

Production of Fruits and Leafy Vegetables Solanum nigrum Linn under Different Shade Levels Nani Yulianti; Edi Santosa; Anas Dinurrohman Susila
Journal of Tropical Crop Science Vol. 5 No. 2 (2018): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Fruits and young shoot of Solanum nigrum Linn are harvested and consumed as indigenous vegetables by different Indonesian ethnics. Preharvest factors and harvesting methods to maximize the quality of S. nigrum produce is still unknown. In this study S. nigrum was grown in full irradiance and under shading and assessed for their growth, and fruit and shoot yields. The experiment was conducted at the Leuwikopo Experimental Farm in Bogor Agricultural University, Indonesia from April-July 2017. The results demonstrated that plants produced more fruits and shoots in full irradiance, i.e., 687.9 g and 211.1 g per plant, whereas only 331.1 g and 116.9 g per plant were produced in 50% shading. Although fruit and shoot production were superior under full irradiance, shoot-harvested plants had healthier leaves and life span of about 2 months longer thus facilitating longer availability. Canopy of shoot-harvested plants formed a columnar shape with 23 to 45 cm in height, in contrast to spherical shape with 48 to 203 cm in height of the fruit-harvested plants. It is likely that shading level might contribute to farmers’ decision to harvest the shoots or fruits of S. nigrum. Further studies are needed to determine the effects of shading levels on nutritional quality of the shoots and fruits of S. nigrum. Keywords: African nightshade, canopy architecture, harvesting method, indigenous vegetable, intercropping

Sensory Evaluation of the Quality of Kaffir Lime (Citrus hystrix DC.) Leaves Exposed to Different Postharvest Treatments Rahmat Budiarto; Roedhy Poerwanto; Edi Santosa; Darda Efedi; Andria Agusta
Journal of Tropical Crop Science Vol. 8 No. 02 (2021): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.8.02.71-79

This study aimed to evaluate the sensory attributes such as aroma, color and texture of kaffir lime leaves in response to various post-harvest treatment. The hedonic test approach was conducted by inviting 70 untrained panelists on seven post-harvest treatments, i.e. (D1) post-sortation fresh leaves, (D2) pre-sortation fresh leaves, (D3) cold-storage leaves, (D4) low temperature-storage leaves, (D5) brown dry leaves, (D6) fresh leaf-flour, and (D7) brown dry leaf-flour. The result showed that most of panelist agreed that aroma was the most important quality attribute that determined the level of preference in kaffir lime leaf products. Among seven tested products, the aroma, color, texture and overall impression of D1 was the most favorite one, while D4, D5, and D7 were assessed as low preference products. This work showed the importance of sortation and cold storage to maintain consumer likeliness. The criteria for sortation were green, clean, pest-disease free, scar free, high uniformity and fresh condition of leaves. Cold-storage at -20oC maintained the color and texture of kaffir lime leaves better than low temperature storage (5oC). To make leaf flour, the use of fresh green leaves was significantly better than brown dry ones. This finding might become the baseline data for the development of kaffir lime leaf product in the future.

The Effects of Preharvest Mild Shading on the Quality and Production of Essential Oil from Kaffir Lime Leaves (Citrus hystrix) Rahmat Budiarto; Roedhy Poerwanto; Edi Santosa; Darda Efendi; Andria Agusta
Journal of Tropical Crop Science Vol. 9 No. 01 (2022): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.9.01.15-21

Kaffir lime (Citrus hystrix DC) is a less popular citrus species commonly used as a food spice and a source of essential oil. Early studies report the success of preharvest mild shading to increase leaf yield, although there is still limited information on the effect of preharvest shading on the quality of essential oil produced. The aim of this current study is to evaluate the effect of preharvest mild shading factors on the yield, physical characteristics, and metabolite fingerprinting of kaffir lime leaves essential oil (KLLEO). One-year-old kaffir lime trees were sampled in two preharvest treatments, i.e., open sun and mild shading (24% light reduction) at Pasir Kuda experimental field, Bogor, Indonesia. Statistical analysis showed that there was no significant effect of preharvest treatment on yield and physical characteristics (color, specific gravity, and refractive index) of KLLEO. In contrast, there was a metabolite fingerprinting variation of KLLEO as an effect of mild shading. The relative percentage of bergamol, citronellol, caryophyllene oxide, citronellic acid, isopulegol, isopulegyl formate, limonene, linalool, and linalool oxide was increased by mild shading. On the other hand, the main metabolite (citronellal) was significantly reduced by about 10% in shading treatment, as compared to the open-sun ones.

Forage Potential of Plant Species Found in Various Ecosystems in Musi Banyuasin Regency, South Sumatera, Indonesia Putri Irene Kanny; M.A. Chozin; Edi Santosa; Dwi Guntoro; Sofyan Zaman; Suwarto Suwarto; Ani Kurniawati
Journal of Tropical Crop Science Vol. 9 No. 01 (2022): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.9.01.68-76

Forage is an important component in sustainable smallholder livestock. The purpose of the study was to identify the diversity of natural plant species in various ecosystems, as well as their potential as forage. Based on our surveys of palm oil plantation, rubber plantation, and home gardens using the quadrant method, we identified approximately 50 species comprising the natural vegetation of our study area. Out of 50, we identified 39 broad-leaved species, 9 grasses (Poaceae) species, and 2 sedges (Cyperaceae) species. The palm oil plantation had 29 species dominated by Ottochloa nodosa (11.92%) and Asystasia gangetica (11.40%); 25 species were found in the rubber plantation dominated by Cynodon dactylon (28.42%) and Panicum repens (9.20%), and home gardens contained 30 species dominated by Eleusine indica (13.39%) and Ageratum conyzoides (9.60%). Among the 29 species found in the palm oil plantation, 13 were observed to have low palatability scores, and 16 species have high palatability scores. Based on their high palatability scores, the following species can be utilized as forage for Balinese cattle: Cyrtococcum acrescens, Eleusine indica, Centrosema pubescens, Paspalum conjugatum, and Sida rhombifolia.

Metabolic Profiling of Three Species of Amorphophallus (Araceae) Edi Santosa; Muhammad Fatah; Lianah Kuswanto; Krisantini Krisantini
Journal of Tropical Crop Science Vol. 9 No. 02 (2022): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.9.02.105-113

A study was conducted to determine the metabolic contents of corms of three species of Amorphophallus, A. muelleri, A. paeoniifolius, and A. variabilis using gas chromatography mass spectrometry (GCMS) with water as polar solvent. The corms were collected from plants cultivated at the Leuwikopo Experimental Station, IPB University, Darmaga, Bogor, Indonesia. Metabolic profiling conducted at the Jakarta Regional Health Laboratory, Indonesian Ministry of Health, demonstrated that the three species of Amorphophallus vary in metabolic content, specifically for 12 compounds belonging to antioxidants, vitamins, saturated fatty acids, polyunsaturated fatty acids, phytosterol, alcohol, aldehyde, and alkane. Our study had shown that metabolic profiling is a potentially useful method of differentiating or determining species markers that in turn could be efficient way for genetic conservation and development of future food source.

Grain Quality of Three Rice Genotypes Grown in Organic and Non-Organic Systems Dulbari Dulbari; Jaenudin Kartahadimaja; Ajeng Aulia Martina; Edi Santosa
Journal of Tropical Crop Science Vol. 11 No. 01 (2024): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.11.01.49-54

Grain quality is essential for assessing the overall quality of the grain produced and determining the market value of the final product. The objective of this study was to evaluate the physical quality of grains cultivated using both organic and non-organic methods. The research employed grains from red, white, and black rice genotypes planted during the third period. Each sample consisted of 100 grams, with three replicates. Data analysis involved variance testing using T and BNT tests, with a significance level set at 5%. Parameters for assessing the physical quality of grains included moisture content, empty grains, damaged kernels (yellow), calcified kernels (young kernels), foreign matter, other varieties, odors, and pests. The research took place at the Polytechnic Organic Farm and Plant Laboratory of Politeknik Negeri Lampung from January to April 2022. The findings indicated that the grain yields of red, white, and black rice genotypes quantitatively exhibited lower levels of yellow/damaged kernels and calcified/young kernels when cultivated organically compared to non-organic methods. However, for other analyses, the results did not show significant differences between the two cropping systems. Nevertheless, the grains of red, white, and black rice genotypes met the quality standards outlined in SNI 01-0224-1987, classified as grade II for organic cultivation and grade III for non-organic cultivation.

Water Footprint Analysis of Different Techniques of Cocoa Propagation Edi Santosa; Supijatno Supijatno; Ade Wachjar; Fadil Rohman; Soetanto Abdoellah
Journal of Tropical Crop Science Vol. 10 No. 03 (2023): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.10.03.153-165

The nursery phase plays a crucial role in rejuvenating cocoa plantations as it significantly impacts the quality and productivity of the mature trees in the field. However, despite its significance, there remains a lack of understanding regarding its contribution to the water footprint (WF) in cocoa production. This study aims to assess the WF of various propagation techniques to promote sustainable nursery practices. Data on nurseries were collected at the Indonesian Coffee and Cocoa Research Institute in Jember, East Java, Indonesia, from June 2017 to January 2018. The results revealed that propagation accounted for a total WF ranging from 74.28 to 319.41 m3.ha-1 of established cocoa trees, with an average of 186.68 m3. This total WF consisted of 9.02 to 12.89 m3 (7.69%) attributed to seed production and 61.39 to 283.34 m3 (92.30%) attributed to the nursery phase. Among the different nursery techniques studied, the production of true seedlings exhibited the lowest WF, followed by side grafting. To optimize cocoa rejuvenation and minimize WF, it is crucial to carefully select the appropriate nursery technique. Further evaluation is necessary to explore the potential benefits of implementing precision irrigation techniques to reduce WF during the nursery phase. By focusing on sustainable nursery practices, we can enhance the overall sustainability of cocoa production.

Quality and Production Potentials of Various Types of Taro Cormel Rafi Fauzan; Eny Widajati; Endah Retno Palupi; Edi Santosa
Journal of Tropical Crop Science Vol. 11 No. 02 (2024): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.11.02.137-146

Taro is a promising food crop that can be developed as a significant source of carbohydrates; however, a major obstacle is the unavailability of high-quality planting materials. Due to the difficulty in obtaining seeds, taro cultivation generally relies on vegetative propagation materials such as cormels, cormlets, and stolons. The advantage of using vegetative propagation material is that it retains the same characteristics as the parent plant. This research aimed to evaluate the quality of various types of cormels as taro planting material, study the potential of different types of cormels on the growth and production of taro plants, and investigate the growth, development, and time required to produce cormels from various types of cormels and their potential in cormel seed production. The research consisted of two experiments: the first experiment evaluated the quality of several types of cormels from two taro accessions (S24 and S28) using a completely randomized design with two factors (accession and types of cormels—primary, secondary, and tertiary), while the second experiment studied the growth and development of cormels from various types of cormels. The best quality seeds were obtained from primary cormels directly attached to the main tubers, with the germination rate highest for primary cormels at 53.25%, followed by secondary cormels at 51.59%, and tertiary cormels at 39.42%. Accession S24 showed a faster emergence rate (30.26 days) compared to S28 (58.08 days), and in S24, there was no significant difference between types of cormels for this parameter. In contrast, in S28, primary cormels had a significant emergence advantage (33.65 days) over secondary and tertiary cormels (62.57 and 78.02 days, respectively). Additionally, primary cormels were formed 8 weeks after planting, while secondary and tertiary cormels appeared 12 weeks after planting. These findings suggest that primary cormels should be prioritized for use in taro propagation to improve growth, development, and yield, highlighting their potential in cormel seed production and offering a viable solution to the challenge of seed availability in taro cultivation.

Yield and Physicochemical Characteristics of Kaffir Lime Leaf Essential Oils Subjected to Different Post-Harvest Treatment Rahmat Budiarto; Roedhy Poerwanto; Edi Santosa; Darda Efendi; Andria Agusta; Muhamad Abdul Rofiq
Journal of Tropical Crop Science Vol. 11 No. 02 (2024): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.11.02.97-104

The importance of kaffir lime leaf as essential oils (EOs) raw material is starting to get attention because of its commercial value; however, there is no quality reference for kaffir lime leaf EOs, especially in response to various post-harvest handlings. This study aimed to describe the physicochemical characteristics and yield of kaffir lime EOs subjected to different post-harvest. Bogor originated-kaffir lime leaf was prepared to be subjected to several post-harvest treatments, i.e., control/fresh green leaves (P1); milling to produce green leaf flour (P2); drying to produce dry brown leaf (P3), and milling and drying to produce brown leaf flour (P4). The result showed that post-harvest treatment generally decreases an oil yield and increases darkness color, specific gravity and refractive index of tested EOs. Additionally, post-harvest treatment also changes metabolite profile revealed by GCMS analysis. The relative percentage of caryophyllene and citronellol tends to increase, while the linalool and citronellal levels decrease due to tested post-harvest treatment. It was implied that for the benefit of the fragrance industry with a high citronellal requirement, EOs should be made from fresh green leaves and the leaves should be avoided from drying and powdering treatment.

Co-Authors , Hariyadi , Kholidi , Krisantini , Susilawati . SUBOWO Abdoellah, Soetanto Abdul Gani Gani Tarigan Abdul Harris Burhan Achmad Taufiq Ade Wachjar Ade Wachjar Ade Wahjar Aditama, Ravi Aditya Wira Tantra Adolf P. Lonto Adolf Pieter Lontoh, Adolf Pieter Agik Suprayogi Agus Buono Agus Sufyan Ahmad Fadli Alghifari AHMAD JUNAEDI Ahmad Zamzami Ajeng Aulia Martina Akmal, Ajmir Almas Lathuf Assyura Anas D. Susila Anas D. Susila Anas Dinnurrohman Susila Anas Dinurrohman Susila Anas Miftah Fauzi Andi Gunawan Andreas Kefi Andria Agusta ANDRIA AGUSTA Andria Agusta Ani Kurniawati Ani Kurniawati Anita Hazimah Putri Anung Wahyudi Aptika Hana Prastiwi Nareswari Arief Hartono Ariny Jihan Thifany Arisa Noguchi Arjuna, Rizka Tri Atang Sutandi Ayu Diah Putu Laksmi Putri Bambang S. Purwoko Bambang Sapta Purwoko Bobot Sudoyo Candra Budiman Careca Sepdihan Rahmat Hidayatullah Chairunnisak, Chairunnisak Chun Lan Lian Chusyairi, Ahmad Darda Efedi Deden Derajat Matra Deden Drajat Matra Delvi Maretta Desta Wirnas Dhika Prita Hapsari Diaguna, Ridwan Didy Sopandie Diny Dinarty Dulbari Dulbari Dulbari, Dulbari Dwi Guntoro Dwi Sutari Laksono Efendi, Darda Eko Sulistyono Elda Kristiani Paisey Elly Kristiati Agustin, Elly Kristiati Elsanti, . Endah Retno Palupi Endang Gunawan Eny Widajati Fadil Rohman Fajar Delli Wihartiko Faqih Udin Fatkhunnisa, Ratu Fifin Nashirotun Nisya Gatot Pramuhadi Gerson Hans Maure Ginanjar Pramudya Sakti Gunar Widiyanto, Gunar HAJRIAL ASWIDINNOOR Haniefan, Nafarain Agung Hariyadi Hariyadi, Hariyadi Herdhata Agusta Herman Wafom Tubur I Wayan Astika Imam Fauzi Fauzi Tanjung Imdad Julian Purwanto Imron Gempur Saputro Ince Raden Indra Mario Stefano Intan Dewi Puspitasari Irfan Rabani Irfanda, Munandar Is Helianti Iswandi Anas Iswandi Anas Jaenudin Kartahadimaja Joan Joulanda Grace Kailola Juang Gema Kartika Karmanah, Karmanah Kazi Liaquat Hossain Ken Takahata Ken Takahata Ken Takahata, Ken Khamdanah, . Lianah Kuswanto Luh Putu Ratna Sundari Lutfy Ditya Cahyanti, Lutfy Ditya M A Chozin M.A. Chozin Machfud Machfud Maghfirah Marchella Putriantari Martini Aji Maryarti Sari Maryati Sari Mathias Prathama Mathias Prathama Md. Abdul Wadud Md. Abul Kashem Md. Shajahan Ali Memen Surahman Miftakhur Rizki Hidayat Febrianto Mochamad Hasjim Bintoro Mochamad Hasjim Bintoro Djoefrie Mohamad Rahmad Suhartanto Mohammad Abdul Wadud Muhamad Abdul Rofiq Muhamad Zainul Fattah Muhammad Fatah Muhammad Ihsan Fatawa Muhammad Raihan Ferdiansyah Muhammad Thamrin Munandar Irfanda Munif Ghulamahdi Nabila Syarfina Aryani Nadia Dwi Kartika Nani Yulianti Ni Made Armini Wiendi Nina Ariesta Nindita, Anggi Nobuo Sugiyama Nobuo Sugiyama Nobuo Sugiyama Nobuo Sugiyama Nurlela, Nurlela Nurul Hidayah NURUL HIDAYAH Nurul Khumaida Okti Syah Isyani Permatasari Panca Dewi Manu Hara Karti Purwanto, Imdad Julian Purwono Purwono Purwono Purwono Purwono Putri Irene Kanny Rafi Fauzan Rahayu Safitri Rahman Rahmat Budiarto Rahmayanti, Fetty Dwi Ramadhani, Detri Ardi Rd. Selvy Handayani Rezky Puryan Ramadhani Rianto, Dwi Fajar Riska sukmawati Ritonga, Arya Widura Rizka Tri Arjuna Roedhy Poerwanto Roelly Ainul Yaqin Rohman, Fadil Rosdiana, Siska Rosyad, Astyani Samudra, Ferdianto Budi Sandra Arifin Aziz Santun RP Sitorus Sembiring, Wildan Kahfi Shafira Pratiwi Sigit Pramono Sinaga, Falencia Siska Rosdiana Siti Halimah Slamet Susanto Sobir Sobir Soekisman Tjitrosemito Soetanto Abdoellah Sofyan Zaman Sri Nurdiati Sri Suryo Sukoraharjo Sri Wahjuni SUBOWO GITOSUWONDO Sufiatul Maryana Sugiyanta Sulassih, . Supijatno Surono, . Suwarto Suwarto Suwarto Syaiful Anwar Syaiful Anwar Tantra, Aditya Wira Tjahja Muhandri Ulfha Junita Ulinnuha, Zulfa Utami Prawati Wijaya, Aldi Kamal Winarso D. Widodo Winarso Drajad Widodo Yoko Mine Yoko Mine Yoko Mine Yoko Mine Yonny Koesmaryono Yunus, Ismadi

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