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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Zuriat BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Hortikultura Jurnal Penelitian Tanaman Industri Jurnal Tanaman Industri dan Penyegar Pelita Perkebunan AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Planta Tropika Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Biologi Tropis ANNALES BOGORIENSES Journal of Tropical Crop Science AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Martabe : Jurnal Pengabdian Kepada Masyarakat NUSANTARA : Jurnal Ilmu Pengetahuan Sosial JOURNAL OF SCIENCE AND SOCIAL RESEARCH CORD Jurnal Penelitian Tanaman Industri (Littri) Buletin Palma TEACHING : Jurnal Inovasi Keguruan dan Ilmu Pendidikan Tut Wuri Handayani : Jurnal Keguruan dan Ilmu Pendidikan Buitenzorg: Journal of Tropical Science Jurnal Natur Indonesia Annales Bogorienses
Dewi Sukma
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor. Jl. Meranti, Kampus IPB Dramaga, Bogor, 16680, Indonesia
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Journal : Journal of Tropical Crop Science

 1 
Controlling Poinsettia (Euphorbia pulcherrima Will.) Height with Growth Retardant Application in West Java, Indonesia Sukma, Dewi; Megawati, Gina
Journal of Tropical Crop Science Vol 3 No 3 (2016): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.141 KB) | DOI: 10.29244/jtcs.3.3.89-92

Abstract

A study was conducted to evaluate the effects of the growth retardant Cycocel application in the growth and development of poinsettia (Euphorbia pulcherrima) ‘Freedom Red’.  Cycocel was applied by spraying plant shoots at the concentrations of 1000, 1500, 2000, 2500 ppm. The increase in cycocel concentrations reduced plant height, leaf size, internodal length, plant spread and the number of flowering plants. All cycocel concentrations resulted in an ideal potted plant height. The optimum spray concentration of Cycocel used to obtain compact and uniformly flowering plants under tropical West Java environment was 1000 ppm.
Improvement of Shelf Life and Sensory Quality of Pummelos by Fruit Waxing and Wrapping Aji, Titistyas Gusti; Susanto, Slamet; Sukma, Dewi; Ardie, Sintho Wahyuning
Journal of Tropical Crop Science Vol 4 No 1 (2017): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.349 KB) | DOI: 10.29244/jtcs.4.1.13-20

Abstract

The aims of this study were to evaluate the physical and chemical change of pummelo fruit during storage with waxing and wrapping, and to determine the effect of waxing and wrapping and their  its interaction in affecting shelf life of pummelo fruits. This research was arranged in a randomized complete block design with two factors and three replications. The first factor was waxing consisted of without waxing, 10% beeswax, 5% beeswax, and chitosan. The second factor was wrapping consisted of without wrapping and wrapping using either transparent yellow or white plastic wrap. Pummelo fruits experience weight loss, reduced total soluble solid (TSS), decrease in firmness and total acidity during 48 days of storage in room temperature. Waxing using beeswax or wrapping using plastic wraps significantly suppressed weight loss and maintained fruit firmness compared to those without waxing and wrapping. However, waxing and wrapping did not significantly affect the quality of pummelo fruits. Based on the fruit’s weight loss, firmness, and panelist preferences, 5% or 10% bees wax can be used as waxing. Both transparent yellow and white plastic wraps can be used to maintain fruit weight, firmness, and appearances during storage. 
Evaluation of Agronomic and Genetic Diversity in M2V1 Generation of Marigold (Tagetes erecta L.) Nabilah, Noorfakhriyah Ahsanti; Aisyah, Syarifah Iis; Muhamad Syukur; Dewi Sukma
Journal of Tropical Crop Science Vol. 11 No. 03 (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.11.03.278-286

Abstract

Marigold (Tagetes erecta L.) is an ornamental plant widely used as a potted or cut flower due to its vibrant colors and diverse flower shapes. High genetic diversity is essential for successful breeding programs aimed at developing superior varieties. Genetic information can be obtained by estimating variance components and heritability values, key parameters in plant breeding. A high heritability value suggests that genetic factors influence a plant's characteristics more than environmental factors. This study assessed the genetic diversity and performance of vegetative propagation from 2nd generation mutant plants (M2V1). The research was conducted at the Pasir Sarongge experimental field in Cianjur Regency from July to October 2023, using a randomized complete block design with 17 genotypes and three replicates. The genotypes included 14 from vegetative propagation of M2V1 mutant plants and three comparison varieties: “Maharani”, “BAIP 2”, and “BAIP 3”. Data analysis was performed using PKBT-STAT 3.1 software, followed by the honest significant difference (HSD) test at the 5% level. The results revealed significant differences among genotypes in plant height, stem diameter, canopy width, leaf width, flower weight, flower diameter, number of flowers per plant, total flower weight per plant, and flower stalk length. Floret types observed were either all ligulate or all tubuligulate, with flower colors ranging from orange to yellow to white. Traits such as canopy width, flower weight, flower diameter, and stalk length, which exhibited broad genetic diversity and high heritability, can be used for selection in future marigold breeding programs.
Dynamics of Nutrient Concentrations, Endogenous Hormones, Photosynthetic Capacity, and Phenological Changes in Black Orchid (Coelogyne pandurata Lindl.) from the Vegetative to Generative Phase Heriansyah, Pebra; Aziz, Sandra Arifin; Sukma, Dewi; Nurcholis, Waras
Journal of Tropical Crop Science Vol. 12 No. 01 (2025): 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.12.01.215-234

Abstract

The black orchid (Coelogyne pandurata Lindl.) is one of the native Indonesian orchids from Borneo island. This study analyzed the dynamics of pigments, photosynthetic capacity, endogenous hormones, nutrient concentrations, and phenology across the vegetative to generative stages of the black orchid. The plant materials are one-year-old plants after splitting from the mother plants. Endogenous hormones, nutrient and pigment concentrations, and leaf photosynthetic capacity were measured during vegetative and generative phases. Chlorophyll, anthocyanins, and carotenoids were analyzed using UV-VIS spectrophotometry, Nitrogen (N) was analyzed by the Kjeldahl method, phosphorus (P) and potassium (K) by the Bray 1 method and Flame Photometry, and organic carbon by the Walkley- Black method with titration. The hormone levels were analyzed using HPLC, and photosynthetic capacity was determined using a Li-Cor 6800 system. Phenological changes in leaves, bulbs, and flowers were recorded. Results showed total chlorophyll increased from 1.96 to 2.36 mg/g from the vegetative to the generative stage while carotene slightly declined. Leaf nitrogen rose from 1.54% to 1.70%, bulb nitrogen decreased from 0.67% to 0.45%, whereas the C/N ratio increased from 65.24 to 85.36 from the vegetative to the generative phase. Flower nitrogen was 1.50%, and phosphorus was 0.17%. IAA in leaves decreased from 25.12 to 21.37 ng.g⁻¹ dry weight post-flowering, while gibberellin in bulbs increased from 12.28 to 12.96 ng.g⁻¹ dry weight. Zeatin in bulbs declined from 10.52 to 8.81 ng g⁻¹ dry weight. Photosynthesis peaked at 2.73 μmol. m⁻².s⁻¹ in early generative stages and then declined. Photosynthetic photon flux density and stomatal conductance decreased, reducing water and CO₂ exchange efficiency, while net assimilation and transpiration rates showed no significant changes. These physiological adjustments, including increased chlorophyll levels, changes in nitrogen allocation, and fluctuations in hormone concentrations, reflect the plant’s adaptive strategies to meet higher energy demands during reproductive growth, ensuring efficient resource distribution for flowering.
Optimizing Tissue Culture for Yellow Dragon Fruit (Selenicereus megalanthus) Propagation: Enhancing Shoot and Root Induction Dirga, Kate Tiffany; Maryuandini, Ufi; Sachio, Sachio; Sukma, Dewi
Journal of Tropical Crop Science Vol. 12 No. 03 (2025): 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.12.03.663-671

Abstract

Yellow dragon fruit (Selenicereus megalanthus) "Palora" variety is a tropical cactus recognized for its yellow pericarp, white mesocarp, and black seeds. Dragon fruits are also known as pitaya. The yellow pitaya variant is regarded as the sweetest and most nutrient-dense, with high commercial value among the commonly cultivated pitaya types. However, large-scale cultivation of yellow dragon fruit remains limited by propagation constraints. The conventional propagation method using vegetative stem cuttings is labour-intensive and results in inconsistent growth and genetic variability. Tissue culture has emerged as a viable biotechnological alternative, enabling rapid multiplication of genetically uniform and disease-free plantlets under controlled conditions. The study aimed to optimize tissue culture medium for enhancing shoot induction on yellow dragon fruit. The experiments were conducted in two steps. The first step evaluated the explant response in MS medium containing 3 mg.L-1 BAP and varying NAA concentrations (0.1, 0.2, 1, 2, and 3 mg.L-1). The results showed that an elevation in NAA concentration promoted progressive growth in shoots, roots, and callus. However, when NAA was further augmented to 3 mg.L-1, shoot and root formation were repressed, while callus formation increased. The second step evaluated the combined effects of auxin and cytokinin on shoot formation. A factorial treatment design was applied using combinations of three NAA concentrations (1, 2, and 3 mg.L-1) and three BAP concentrations (1, 2, and 3 mg.L-1), resulting in nine treatment combinations, with the lowest concentration (NAA 1 mg.L-1 + BAP 1 mg.L-1) as the control. Statistical analysis revealed that NAA, BAP, and their interaction had a significant effect on the number of shoots. The optimal treatment for producing the highest number of shoots is a combination of NAA at 3 mg.L-1 and BAP at 2 mg.L-1.
Assessment of Yellow and White Fleshed Cassava Tuberous Root Cultivars Reveals Different Responses to Post-harvest Physiological Deterioration Rahmawati, Rika Sri; Fathoni, Ahmad; Sukma, Dewi; Ardie, Sintho Wahyuning; Sudarsono, Sudarsono
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.11.01.64-73

Abstract

Identification of post-harvest physiological deterioration (PPD) tolerance in cassava is crucial, as PPD significantly hampers the cassava tuberous root industry by shortening storage periods post-harvest and diminishing product quality. Characteristics linked to PPD tolerance encompass high carotenoid levels and low dry matter content (DMC). This study aimed to evaluate the PPD responses of six yellow fleshed and ten white-fleshed cassava tuberous roots and determine the source of PPD tolerance. PPD and DMC assessments were conducted using standard methods at three storage periods: 2, 5, and 10 days after harvest (DAH). The k-means clustering analysis revealed six clusters, each corresponding to distinct PPD symptom patterns and tolerance statuses. Cluster 1, comprising three yellow-fleshed and three white-fleshed cassava cultivars, demonstrated PPD tolerance with minimal symptoms up to 5 DAH. Clusters 2 and 3 exhibited a moderate PPD response with elevated symptoms at 5 DAH, comprising three yellow-fleshed and three white-fleshed cassava cultivars. Clusters 4 to 6 displayed a sensitive response to PPD, showcasing a significant increase in symptoms at 5 and 10 DAH, with four white-fleshed cassava cultivars identified within this cluster. These findings underscored the presence of PPD tolerance in both yellow-fleshed and white-fleshed cassava tuberous roots. The correlation between PPD and DMC was significant only at 2 DAH, displaying a moderate positive correlation. Consequently, this study identified three cultivars, “Carvita-25”, “Manggu”, and ““Ubi Kuning””, with high DMC and low PPD incidence at 5 DAH, suggesting their suitability for further breeding programs.
Co-Authors , Krisantini , Nazi , Rustikawati ,, Giyanto ABDUL MUNIF Abdullah bin Arif Adil Akbar Muhammad Adimas Krishardianto Affif Andra Saputro Agus Purwito Agus Rachmat Agus Rachmat Ahmad Bukhori, Ahmad Ahmad Fathoni Aji, Titistyas Gusti Akbar, Machmul Alam Sani, Fajri Ali Husni Alvianti Yaufa Desita Alwi, Ahmad Andi Zahira Al Humairoh Andri, Eldrida Antony Demas Apriliani, Elisa Aqilla Fadia Wahono Arifah Rahayu Arrin Rosmala Ary Setiawati Assyifa Fauzia Atra Romeida Avisena, Dimas Lutfi Azmi, Tubagus Kiki Kawakibi Budi Marwoto Chaireni Martasari Cici Tresniawati Daffa Rafiandra Haryono Daulay, Delfina Deden Derajat Matra Deden Sukmajaya Demas, Antony Dewa Ngurah Suprapta DINI NURDIANI Dini Nurdiani Dirga, Kate Tiffany Dodi Saputra, Muhammad Dwi Utami Nur Usmani Efendi, Darda Eka Martha Della Rahayu Elina, Juanita Elis Nina Herliyana Elizabeth Handini ELSJE T. TENDA ELSJE T. TENDA, ELSJE T. ENNY RANDRIANI Erick Raynalta Erick Raynalta, Erick Erna Sulistiana Erna Sulistiana Fadillah, Anggun Fajar Pangestu Fauziah, Ni'mah Fawaz, Ataya Thalita Fuady Dharma Harahap, Andes Giyanto, dan Gustaaf Adolf Wattimena HAJRIAL ASWIDINNOOR Halimatussakdiyah, Halimatussakdiyah Handini, Aline Sisi Hasibuan, Nadia HENGKY NOVARIANTO Hengky Novarianto Hengky Novarianto Hermanto, Catur Hidayatullah, Deden Husein Nst, Ahmad I MADE ARTIKA Ika Roostika Indira Ariesta Ira Fauziah Noer Irawati Irawati Islami, Muhammad Randy ISMAIL MASKROMO Ismail Maskromo Ismail Maskromo Ismiati, Mely Isnaini Harahap, Fitri Iswari S. Dewi Juang Gema Kartika Kartiman, Roni Kartiman, Roni Khoiruddin Khoiruddin Khoiuruddin, Khoiruddin Krishardianto, Adimas KRISTIANTO NUGROHO, KRISTIANTO Kultsum, Fifit Lestari Koto, Putri Lolliani Lubis, Uchti Nuzul Qhinanti M. Syukur Maria Swastika Maryuandini, Ufi MASKROMO, ISMAIL MASKROMO, ISMAIL Mastur Mastur Megawati, Gina MEITY A. TULALO MEITY A. TULALO, MEITY A. Mia Kosmiatin Mira Humaira Muhamad Rizal Martua Damanik Muhamad Syukur Muhammad Hamzah Aditama Muhammad Syukur Muhammad Syukur Muthi'ah Khairun Nisa Muthi’ah Khairun Nisa Nabilah, Noorfakhriyah Ahsanti Nasution, Fery Endang Ni'mah Fauziah Noer, Ira Fauziah NOVARIANTO, HENGKY NOVARIANTO, HENGKY Nur Ajijah NUR AJIJAH Nurgravisi, Primanisa Nurul Khumaida OKTA ROSFIANI Pebra Heriansyah Pratama, Syilvia Nosya PUJI LESTARI Pulungan, Darmasyah Pulungan, Nurpadilah Putri, Astrid Aditya Putri, Halida Adistya Putri, Yane Riana Rahmawati, Rika Sri rawati ,, rawati Razaq, Sahid Muhammad Refa Firgiyanto REFLINUR REFLINUR Risda Rizkillah, Risda Riski Ananda, Ihwan Rizal, Syamsi Roedhy Poerwanto RUBIYO RUBIYO Rusmiyati, Henny S. Sudarsono Sachio, Sachio Safri Hasibuan, Iskandar Saidah, Marwatu Sandi, Gunawan Sandra A. Aziz Sandra Arifin Aziz Saputra, Galang Rafly Yus Sari, Novila Satya Nugroho Satya Nugroho Sauri Nasution, Sofyan Shandra Amarilis Shandra Amarillis Siberakuno, Roberdi Sihombing, Novi Silviyani Siregar, Sindi Simatupang, Juli Simatupang, Juliana Sintho Wahyuning Ardie Siti Salamah Slamet Susanto Sormin, Darlina Sudarsono Sudarsono SUDARSONO SUDARSONO SUDARSONO SUDARSONO Sudarsono Sudarsono Sudarsono, dan SUDARSONO, nFn SUDARSONO, nFn Sudarsono, Sudarsono Sugianto, Pingkan Sukendah SUKENDAH SUKENDAH SUKENDAH SUKENDAH, SUKENDAH SUKENDAH, nFn SUKENDAH, nFn Sukmana, Bayu Surjono Hadi Sutjahjo Suryo Wiyono Suskandari Kartikaningrum Sutanto, Agus Swastika, Maria Swastika, Maria Syafa, Naila Syarifah Iis Aisyah Syilvia Nosya Pratama Tony Liwang TRI JOKO SANTOSO Tya Wulandari Ucu Sumirat Wahyu Arif Sudarsono Wahyu Arif Sudarsono Waras Nurcholis Willy Bayuardi Suwarno Yafqori Ardigusa Yasmin, Zahra Fadhlia Yoshua Shandy Yudha Yudhi, Joshinjitsu Fatirizqina Yustia Yulianti Zahra Fadhlia Yasmin Zulfa, Aqila