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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Hortikultura Indonesia (JHI) Forum Pasca Sarjana Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Agrikultura Journal of Tropical Soils Agrovigor: Jurnal Agroekoteknologi Jurnal Hortikultura Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Buletin Penelitian Tanaman Rempah dan Obat AGRIVITA, Journal of Agricultural Science Planta Tropika Caraka Tani: Journal of Sustainable Agriculture EnviroScienteae Jurnal Penelitian Pertanian Tanaman Pangan Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Journal of Tropical Crop Science JURNAL PANGAN ZIRAA'AH MAJALAH ILMIAH PERTANIAN Buletin Penelitian Tanaman Rempah dan Obat Jurnal Agrotropika

Maya Melati

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

Author-ID : 318484

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Social Sciences

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The Effect of Heavy Pruning and Organic Fertilizer to Biomass and Flavonoid Production Orange Jessmine Leaves at the First and Second Harvest Eman Ayu Sasmita Jati, Gusti; Arifin Aziz, Sandra; Melati, Maya
Jurnal Hortikultura Indonesia (JHI) Vol. 10 No. 2 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Pemanenan kemuning (Murraya paniculata (L.) Jack.), dengan cara pangkas di ketinggian yang sama terus-menerus dapat menyebabkan penurunan produksi. Penerapan pangkas berat terhadap tanaman kemuning belum pernah dilaporkan sebelumnya. Penelitian ini bertujuan untuk menentukan ketinggian pangkas dan dosis pupuk yang sesuai untuk mempertahankan atau meningkatkan produksi daun kemuning dan flavonoid. Penelitian dilakukan dari bulan Juli 2015 sampai Juli 2016. Percobaan dilakukan di Kebun Percobaan Organik Institut Pertanian Bogor di Cikarawang, Bogor. Percobaan menggunakan rancangan acak kelompok dengan dua faktor dan empat ulangan. Faktor pertama adalah tinggi pemangkasan yang terdiri atas 45, 60 dan 75 cm di atas permukaan tanah. Ketinggian 75 cm didesain sebagai kontrol. Faktor kedua adalah kombinasi dosis pupuk kandang ayam (PA) dan abu sekam (AS), yaitu: tanpa pupuk (kontrol), 7 kg PA + 3 kg AS, dan 14 kg PA + 6 kg AS per tanaman per tahun. Panen dilakukan dua kali dengan interval empat bulan. Hasil penelitian menunjukkan bahwa ketinggian pangkas 60 cm di atas permukaan tanah merupakan pemangkasan berat terbaik untuk pertumbuhan, produksi, dan produksi total flavonoid daun tanaman kemuning yang berusia 45-57 bulan setelah tanam (BST) setelah 4-6 kali panen, sementara perlakuan pemupukan tidak memberikan hasil yang berbeda nyata. Kata kunci: abu sekam, kandungan pigmen, pupuk kandang ayam, tinggi pangkasan

GROWTH AND YIELD OF ORGANIC RICE WITH COW MANURE APPLICATION IN THE FIRST CROPPING SEASON Sudarsono, Wahyu Arif; Melati, Maya; Aziz, Sandra Arifin
AGRIVITA Journal of Agricultural Science Vol 36, No 1 (2014)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v36i1.334

The study was addressed to investigating the effect of cow manure application rate on organic rice growth and yield in the first cropping season. The study was conducted from January to April 2012 in Blora, Central Java, Indonesia. The experiment was arranged in Randomized Complete Block Design, consisting of four treatments and four replications. There were two types of control treatments i.e. organic fertilizer treatments (statistically analyzed) and conventional fertilizer (not statistically analyzed). The treatments were corn biomass, corn biomass+cow manure (7.5 tons ha-1), corn biomass+cow manure (10 tons ha-1) and cow manure (10 tons ha-1) with square spacing of 20 cm x 20 cm. The organic control treatments were corn biomass+sheep manure (7.5 tons ha-1) with spacing of 20 cm x 20 cm and corn biomass+cow manure (7.5 tons ha-1) with double-row spacing of 40 cm x 25 cm x 15 cm. For every treatment, the rate of corn biomass was 3 tons ha-1. All organic treatments were also added with 3 tons rice hull ash ha-1. The application of cow manure (10 tons ha-1) with square spacing or corn biomass+cow manure (7.5 tons ha-1) with double-row spacing resulted in better performance than those of other treatments.Keywords: corn biomass, grumosol, organic farming, rice hull ash, sheep manure

Enrichment of Organic Manure with Plant Growth Promoting Rhizobacteria Improved the Root and Shoot Growth of Okra (Abelmoschus esculentus L. Moench.) Magana, Richard Elisha; Melati, Maya; Purnamawati, Heni; Pratiwi, Etty
Journal of Tropical Crop Science Vol. 7 No. 03 (2020): 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.7.03.137-147

A well-structured root system is essential to ensure optimal plant growth and yield. Two experiments were conducted to determine the effects of plant growth promoting rhizobacteria (PGPR) on the root system of okra plant. These experiments were arranged with a completely randomized design. The first experiment was conducted in the growth chamber with 8 different bacterial isolates consisting of Methylobacterium sp., Bacillus sp., Bacillus methylotrophicus, Flavobacterium tirrenicum, Providencia stuartii, Azotobacter vinelandii, Methylocystis parvus and PGPR consortium. The second experiment was conducted in the greenhouse and examined the effects of four poultry manure rates, i.e. 0, 6, 12 and 18 ton ha-1, or equivalent to 0, 75, 150 and 225% of recommended rates and how these are altered with the presence or absence of PGPR. The results of the experiments showed that, PGPR significantly improved root architecture; the number and length of lateral roots was increased by 242.86% and 777.79% respectively, as well as the dry weight of the roots and shoots of okra plant by 236.36% and 333.33%, respectively. Moreover applying 150% (12 t.ha-1) of the recommended rate of poultry manure enriched with PGPR was found to be most effective in terms of improving the growth and root attributes of okra plants.

Plant Growth and Morphological Characters of Sonchus arvensis L. from Different Chicken Manure Rates and Harvest Intervals with Ratooning Practices Melati, Maya; Ari, Ahmad Nur Hidayat Gena; Aziz, Sandra Arifin
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.8.02.60-70

Sonchus arvensis L., commonly known as perennial sow thistle, field milk thistle, among other names, is a weedy species that has medicinal values. Belongs to the Daisy family (Asteraceae), S. arvensis has a rosette form and it can be harvested more than once. The determination of harvest interval for ratoon of S. arvensis is necessary because ratooning can save time to produce the consecutive plant biomass, but the second harvest must be conducted at the correct time as it will determine the quantity and quality of leaves. As source of herbal medicine, cultivation of S. arvensis with organic fertilizer is preferred, and determination of organic fertilizer rates is also important for ratooning. The purpose of the study was to evaluate the plant growth response and yield with different chicken manure rates and different harvest intervals. The field experiment was conducted at IPB experimental station in Cikarawang, Darmaga Bogor, Indonesia. The study used a randomized complete block design with different manure rates (0, 7, 14, 21 ton.ha-1) and various harvest intervals (6, 8, and 10 weeks after the first harvest) as treatments. The results showed that for the first harvest, the effect of chicken manure rates was linear almost on all variables. For the ratoon (second harvest), manure rate of 14 ton.ha-1 (for first harvest) added with 4 ton.ha-1 (after first harvest) was enough for leaf production. The results indicate that ratoon should be harvested at 10 weeks after the first harvest to obtain the highest yield. The interaction between manure rates and harvest interval was not significant for growth variables of the second harvest.

Identification of Secondary Metabolite Compounds in Two Varieties of Young Winged Beans (Psophocarpus tetragonolobus L.) at Two Harvest Ages Susanti, Destia; Melati, Maya; Kurniawati, Ani
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.9.01.52-67

The winged bean (Psophocarpus tetragonolobus L.) is a member of the Fabaceae family (beans). Winged bean is developed as a vegetable, and young winged bean pods can be consumed fresh, steamed, fried, or pickled. In Southeast Asia, winged bean pods are generally cooked or consumed as side dishes or salad. Winged bean contains high protein content equivalent to soybean seed. Besides being rich in protein, vitamins, and minerals, the winged bean also has secondary metabolites, including phenolics and flavonoids. This study aimed to identify secondary metabolites in young pods of two varieties, “Fairuz” and “Sandi”, at two different harvest ages of 8 and 10 days after anthesis (DAA) and provide the biological activity on each identified compound. The experiment was conducted at the IPB experimental field at Leuwikopo, Bogor, from September 2020 to February 2021. The identification of secondary metabolites of the young green pods “Fairuz”, and the young purple pods “Sandi”, was performed using the GCMS method at the Regional Health Laboratory (KESDA) DKI Jakarta. The results of the GCMS analysis showed that 1,2-enzenedicarboxylic acid, mono(2-Ethylhexyl) ester was the most abundant compound identified from pods harvested at 8 DAA in both varieties, namely 42.26% in “Fairuz” and 26.66% in “Sandi”. Other compounds, 9,12,15-Octadecatrienoic acid, ethyl ester, (Z, Z, Z) (Linoleic acid ester), were found in “Fairuz”, whereas (9E,12E)-9,12-Octadecadienoic acid (Linoleic acid) was found in “Sandi”; these compounds are hydroxyl group and phenolic glucoside compounds and are found in pods harvested at 10 DAA.

Enhancing Leaf Flavonoid Production in Indian Camphorweed (Pluchea indica Less.) through the Provision of Chicken Manure Indriani, Yulia; Aziz, Sandra Arifin; Melati, Maya
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.11.01.55-63

Indian camphorweed (Pluchea indica Less.) leaves exhibit antioxidant, antibacterial, anti-inflammatory, and antimicrobial activities, indicating significant potential for the pharmaceutical industry. This research aimed to determine the optimal rates of chicken manure for enhancing leaf and total flavonoid production in Pluchea indica. The study took place at the IPB Experimental Station in Bogor, Indonesia,spanning from July to October 2023. A completely randomized block design with a single factor (chicken manure doses) was employed: 0, 2.5, 5, or 7.5 kg per plant. Each treatment comprised three replications, each consisting of 20 plants. The results revealed that the application of chicken manure at 2.5 kg per plant led to significantly taller plants, more leaves, and tertiary branches compared to the control group. Specifically, the 2.5 kg dosage significantly increased the nitrogen content of the 7th leaf and the potassium content of the 3rd leaf. Meanwhile, the application of 5 kg of chicken manure per plant significantly boosted phosphorus content in the 3rd and 7th leaves and potassium content in the 5th and 7th leaves. However, no significant differences were observed in total flavonoid and antioxidant activity across all leaf positions with chicken manure application. Plants receiving 5 kg of manure demonstrated the highest fresh leaf weight (81.64 g) and dry weight (38.27 g), which were significantly greater than those receiving 2.5 kg per plant or no manure. Despite these variations, flavonoid production per plant did not show a significant difference with manure application.

Twice Applications of Laying Hens Manure Produced the Highest Yield of Organic Okra Pods (Abelmoschus esculentus L. Moench.) Fhonna, Tasya Nurizki; Melati, Maya; Aziz, Sandra Arifin
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.10.03.176-185

The optimal okra cultivation using organic fertilizers remains a subject of limited information. This study aimed to assess the impact of applying 18 t.ha-1 of laying hens' organic fertilizer on the morphological and physiological traits of the "Naila IPB" green okra variety. The study was conducted between September and December 2022 at the IPB organic experimental field at Cikarawang, Bogor, West Java, Indonesia. A randomized complete block design with a single factor namely frequency of organic fertilizer application, was employed. The factor consisted of four levels: no organic fertilization, 1-, 2-, and 3-times applications. The results demonstrated that a single application of organic fertilizer led to an increase in plant height at 5, 7, and 9 weeks after planting (WAP), leaf number at 5 WAP, root dry weight at 4 WAP, stem dry weight at 10 WAP, and an acceleration in the onset of flowering. This resulted in a flowering period lasting 29.6 days, with a total flowering duration of 69.33 days. In contrast, a two-times application of organic fertilizer resulted in elevated plant height at 11 WAP, an increased leaf number at 11 WAP, heightened leaf potassium content, a greater number of pods per plant, and a higher yield of young pod okra. These findings contribute to our understanding of the effects of organic fertilizer application frequency on the growth and yield of young pod okra, aiding in the formulation of improved cultivation strategies.

Leaf Pruning Increased Seed Yield and Leaf Production of Cowpea (Vigna unguiculata L. Walp) Hartini Kilbaren, Muji; Purnamawati, Heni; Melati, Maya
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.10.03.213-223

The leaves and pods of cowpea (Vigna unguiculata L. Walp) have potential uses as vegetables. This research aimed to assess the impact on cowpea growth and seed yield through different pruning times, methods, intensities, and their interactions. Conducted at the Cikabayan Experimental Field, IPB University, between April and August 2022, the study employed a randomized complete block design with three factors and three replications. The first factor, pruning time (5 and 7 weeks after planting, WAP), represented vegetative and generative phases. The second factor involved pruning methods (leaf and shoot), while the third focused on pruning intensity (0, 10, 30, and 50% of leaf numbers). This resulted in 16 treatment combinations, replicated three times, yielding 48 experimental plots. Measured variables included pruned leaf count, pruned leaf weight, total leaf count, plant fresh and dry weights, cowpea plant C/N ratio analysis, pod wet and dry weights, pod count, pod length, seeds per pod count, 100-seed weight, dry seed weight per plant, dry seed weight per plot, and cowpea seed productivity. Results highlighted significant effects of pruning time, method, and intensity on leaf count, shoot fresh and dry weights, and C/N ratio of cowpea plants after two weeks of pruning. However, the treatments did not significantly influence cowpea seed yield. Pruning cowpea leaves led to an average pruned leaf weight of 30 g per plant, offering a nutritious vegetable source without compromising cowpea seed yield. These leaves commanded a market price of approximately Rp. 6000 per kg, transforming them into a valuable economic asset when utilized as vegetables, thus contributing to the sale of nutritious food.

Plant Growth, Fruit Production and Total Terpenoid Compounds in Bitter Gourd (Momordica charantia L.) at Various Levels of Phosphorus Fertilization Rizva, Dian Novira; Melati, Maya; Aziz, Sandra Arifin
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.11.02.184-194

Bitter gourd (Momordica charantia L.) fruits have been reported to have pharmacological functions such as anti-bacterial, lowering blood sugar, and preventing cardiovascular disease. Terpenoids are the bioactive compounds that play a role in those functions. The phosphorus is essential in the biosynthesis of terpenoids. This research aimed to determine plant growth characteristics, fruit production, and terpenoid production in bitter gourds fertilized with various phosphorus. The experiment was conducted at the IPB experimental station in Cikarawang, 6o32’58.3” S south latitude and 106o43’54.8” E east longitude, Bogor, Indonesia, from July to October 2023. The experiment used a completely randomized block design with a single factor: fertilizer treatments and three replications. The treatments were without fertilizer, chicken manure only, and varying dosages of SP-36 (0, 20, 40, 60 g per plant). Plants treated with 40 g SP-36 per plant significantly had longer stems at four weeks after planting (WAP) (153.5 cm), substantially more female flowers at 5 WAP (6.4 flowers), heavier fresh weight per fruit (243.98 g), and higher fruit carotene level (86 μg.g-1). Plants treated with 60 g SP-36 per plant had the heaviest fresh fruit weight per plant (2,820.9 g). On the other hand, chicken manure fertilizer resulted in an elevated number of female flowers at 7 WAP (6.8 flowers), leaf potassium content (3.41%), chlorophyll a (250 μg.g-1), chlorophyll b (114 μg.g-1), and total chlorophyll concentration (363 μg.g-1). There were no significant differences in IC50, terpenoid content, and terpenoid production; however, plants treated with 60 g SP-36 per plant tended to have lower IC50 (1,347.67 ppm) and terpenoid content (95,227 μmol NE.g-1 dry fruit). In contrast, plants treated with 40 g SP-36 per plant tended to have higher terpenoid production (15,995 mmol NE per plant) than other treatments.

Aktivitas Nitrogenase, Serapan Hara dan Pertumbuhan Dua Varietas Kedelai pada Kondisi Jenuh Air dan Kering Ghulamahdi, Munif; Aziz, Sandra Arifin; Melati, Maya; Dewi, Nurwita; Rais, Sri Astuti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The objective of this experiment was to study nitrogenase activity, nutrient uptake, and growth of two soybean varieties under saturated and dry soil conditions. The experiment was conducted in the plastic house at IPB Experimental Station, Babakan Sawah, Bogor, from August to November 2001. The experiment used the complete randomized design with four replications. The first factor was variety, consisted of Wilis and Bromo. The second factor was water condition, consisted of continuous saturated, saturated-dry, and dry conditions. Wilis and Bromo were not significantly different in nitrogenase activity; P and K uptake; nodule, stalk, leaf, pod, and seed dry weight. Wilis and Bromo were significantly different in root dry weight and leaf N uptake at 3 weeks after planting. Root dry weight and leaf N uptake of Wilis was lower than those of Bromo.The levels of nitrogenase activity, nutrient uptake, and plant weight under different water conditions were in the following order, from low to high, dry, saturated-dry, continuous. Under continuous saturated condition, nitrogenase activity, N uptake, P uptake, K uptake, nodule, root, stalk, leaf, and pod dry weight were 6800 %, 265 %, 320 %, 288 %, 1386 %, 362 %, 289 %, 265 %, 329 % of those under dry condition, respectively at 9 weeks after planting. Key words: Soybean, saturated culture, dry culture, nitrogenase activity, nutrient uptake

Co-Authors , Hariyadi -, Bachtiar A.A. Ketut Agung Cahyawan W Adwiyani, Pustika AHMAD JUNAEDI Ahmad Nur Hidayat Gena Ari Ai Asiah Alce Ilona Noyaa Alifiya Herwitarahman Ani Kurniawati Aplugi, Dewie Maria Agustien Ari, Ahmad Nur Hidayat Gena Arinal Haq Izzawati Nurrahma Arinal Haq Izzawati Nurrahma Atang Sutandi Atika Romalasari Bachtiar Bachtiar Bambang S. Purwoko Bayu Aditya Sinuraya Danner Sagala Delyani, Rista Denti Dewi Gatari Devi Rianawati Didy Sopandie Dwi Guntoro Dwiwanti Sulistyowati Efendi, Darda Eman Ayu Sasmita Jati, Gusti Etty Pratiwi, Etty Fajri, Atikah Faqih Udin Faridah, dan Didah Nur Febjislami, Shalati Fhonna, Tasya Nurizki Fitri Galih Kurnia Fred Rumawas Hanessa Putry, Regata Ringga Hartini Kilbaren, Muji Haryanto, Pesol Hasan, Fardyansjah Herik Sugeru Hilda Susanti Hilda Susanti Ilona Noyaa, Alce IPG Widjaja Adhi Irdika Mansur Irdika Mansur Irsyad, Reza Fathianto Iskandar M. Lapanjang Isna Tustiyani Isna Tustiyani Jamil, Anna Moslihat Juang Gema Kartika Justika S Baharsjah Karimuna, Siti Rahmah Kurnia, Fitri Galih Kurniawati, Ari Kurniawati, Ari Leo Mualim Lia Desyrakhmawati, Lia Liana, Devi M A Chozin Magana, Richard Elisha Manik, Auhge Eva Sari Manullang, Nadya Inri Marlin Sefrila Melia Fetiandreny Mohamad Rafi Mohammad Rafi Muchamad Hartanto Muhamad Syukur Muhammad Syukur Muhimmatul, Husna Muis, Ridwan Munif Ghulamahdi Nasution, Siti Nurminah Ngui, Marianus Nofi Anisatun Rokhmah Nurbani, Hilmi Nuri Andarwulan Nurwita Dewi Parwito Purwono Purwono Purwono Purwono, Purwono Purwono, dan Purwono, Purwono Putri, Fiadini Raden Ajeng Diana Widyastuti Rahmi Taufika Ramadhani, Elrisa Rizva, Dian Novira Sandra A. Aziz Sandra A. Aziz Sandra A. Aziz Sandra Arifin Azis Sandra Arifin Aziz Sari, Siti Hapita Sefrila, Marlin Sinuraya, Bayu Aditya Slamet Susanto Sri Astuti Rais Sri Ayu Dwi Ayu Dwi Lestari, Sri Ayu Dwi Ayu Dwi Sri Wilarso Sri Wilarso Budi Sugiyanta Sugiyanta , Sugiyanta Sugiyanta Suntari Susanti, Destia Suwarto Suwarto Tatik Raisawati Tatik Raisawati Tiara Aninditha Titi Candra Sunarti Totong Siwanto, Totong Undari, Desti Wahyu Arif Sudarsono Wahyu Arif Sudarsono Wahyu Fikrinda Wahyudin, Cecep Ijang Willy Bayuardi Suwarno Wisdiyastuti Andriyani Wiwik Hartatik Yoga Yuniadi Yudiwanti Wahyu E. Kusumo Yulia Indriani Yulisda Eka Wardani

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