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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Lahan Suboptimal AGRIVITA, Journal of Agricultural Science Jurnal Agroekoteknologi Jurnal Wasian Jurnal Segara Klorofil: Jurnal Penelitian Ilmu-Ilmu Pertanian Akta Agrosia Berkala Penelitian Hayati SRIWIJAYA JOURNAL OF ENVIRONMENT BIOVALENTIA: Biological Research Journal Jurnal Locus Penelitian dan Pengabdian Jurnal Wasian Journal of Smart Agriculture and Environmental Technology

Rujito Agus Suwignyo

Department Of Agronomy, Faculty Of Agriculture, Sriwijaya University, Indonesia

Author-ID : 221585

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Veterinary

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RICE RATOON YIELD RESPONSE TO MAIN CROPS CUTTING HEIGHT IN TIDAL SWAMP USING DIRECT SEEDING SYSTEM Evriani Mareza; Zainal Ridho Djafar; Rujito Agus Suwignyo; Andi Wijaya
AGRIVITA, Journal of Agricultural Science Vol 38, No 2 (2016): JUNE
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.v38i2.502

This study was aimed to evaluate the effect of main crops harvest cutting height on the yield of rice ratoon in the tidal swamp by using direct seeding system. The experiment was conducted in Telang Sari village, District of Tanjung Lago, Banyuasin, South Sumatra Province from November 2013 to April 2014. It measured plots 4 x 5 m through a randomized block design with 5 replications. The treatment was main crops harvest cutting height of 10, 20, 30, 40 and 50 cm above the soil surface. The results showed that the effect of cutting height on rice ratoon yield depends on the condition of photosynthetic and the amount of remaining nodes on the main crops stubble as an emergence ratoon shoots. The main crops cutting height of 20-40 cm above the soil surface increased the number of productive tillers, grain weight per hill, yield per plot, ratoon ability to grow per plot, and the rice ratoon/main crops yield ratio in tidal land by using direct seeding system.

HUBUNGAN LUAS DAUN TERHADAP PERTAMBAHAN BERAT KERING RUMPUT GAJAH DI BERBAGAI PERLAKUAN DI MEDIA TAILING TIMAH Nyayu Siti Khodijah; Rujito Agus Suwignyo; M. Umar Harun
Jurnal Agroekoteknologi Vol 10, No 1 (2018)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/j.agrtek.v10i1.5463

Elephant grass (Pannisetum purpureum) can grow in various types of land conditions and produces and is resistant to environmental stress. The predominant sand tin tailing conditions and poor nutrients cause limited plant growth above them. This research tested some kind of fertilizer treatment on sand tailing media after tin addition by using elephant grass plants. The results showed that the type of fertilizer had significant effect on the specific leaf area variant, the ratio of leaf area and the leaf weight ratio. Overall growth were greatly depressed on the 100% tailings treatment. Lime applied in conjunction with NPK fertilizer was not show the total leaf weight that was different from the addition of NPK alone. NPK fertilizers better influence the growth of elephant leaves in tin tailings than organic fertilizers. The best treatment was obtained on organic fertilization with NPK inorganic fertilization. The association of total dry weight of elephant grass with specific area of elephant grass leaf was only visible in organic fertilization treatment together with NPK inorganic fertilizer. In the best condition of elephant grass growth, the specific leaf area had a significant role to increase the total weight of the plant with the value of r2 = 0.864 or LDS will affect the total dry weight of elephant grass in the tailings medium with the addition of organic and inorganic materials NPK of 86.4 percent the remaining 13.6% increase in total dry weight was influenced by factors other than specific leaf area.

Reproductive phenology of Bruguiera sexangula (Lour.) Poir. in Berbak and Sembilang National Park, South Sumatra Sarno Sarno; Rujito Agus Suwignyo; Zulkifli Dahlan; Munandar Munandar; Moh Rasyid Ridho
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 23 No 2 (2018): June 2018
Publisher : The East Java Biological Society

Phenology is the study of the period phases which occured naturally in plants. Information about phenology is essential for the sustainable management of mangrove area. During these phases was significantly influenced by the circumstances surrounding environment as ever shines, temperature, and humidity. Observations of the phenology is devoted on mangrove Bruguierasexangula, especially since the phenology information about B. sexangula is still restricted in Berbak and Sembilang National Park, South Sumatra. Research was carried out in February-September 2016. The methods used in this research is a tagging method or labelling on flower buds and observed till the stage of being a mature propagule. Initiation of flowering B. sexangula was occurring in February, the next step was the flowering that occurs from April to June, while the bear season occured from late June-July. The stage of maturation of propagule until October. Harvest time of propagule B. sexangula was conducted in October. Flower initiation of B. sexangula stage to propagule maturity stage takes about 7 months.

Potensi Simpanan Karbon pada Biomassa Tegakan dan Akar Mangrove di Kawasan Lindung Pantai Pulau Payung, Kabupaten Banyuasin Septi Hermialingga; Rujito Agus Suwignyo; Tengku Zia Ulqodry
Jurnal Segara Vol 16, No 3 (2020): Desember
Publisher : Pusat Riset Kelautan

Mangrove sangat efektif mengurangi karbon di atmosfer yang kemudian disimpan dalam bentuk biomassa. Penelitian ini bertujuan untuk melakukan estimasi simpanan karbon pada tegakan dan akar mangrove. Penelitian ini dilakukan pada Bulan Februari 2020 di Pulau Payung, Kecamatan Banyuasin menggunakan metode purposive sampling. Perhitungan biomassa mangrove menggunakan metode persamaan allometrik. Hasil estimasi simpanan karbon dari biomassa tegakan dan akar mangrove yang terbesar yaitu jenis mangrove A. alba sedangkan yang terkecil yaitu jenis mangrove X. granatum. Biomassa dan stok karbon tegakan mangrove tiap stasiun yang tertinggi terdapat pada stasiun 2 dan terendah terdapat pada stasiun 6. Tegakan mangrove memiliki nilai rata-rata biomassa dan simpanan karbon yaitu 124,4 ton/ha dan 58,47 tonC/ha. Akar mangrove memiliki nilai rata-rata biomassa dan simpanan karbon yaitu 71,44 ton/ha dan 33,58 tonC/ha.

Carbon Storage Estimation in Mangrove Sediment at Payung Island, South Sumatera Septi Hermialingga; Rujito Agus Suwignyo; Tengku Zia Ulqodry
Sriwijaya Journal of Environment Vol 5, No 3 (2020): ENVIRONMENTAL MANAGEMENT
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (400.994 KB)

Mangrove is a plant generally located in tropical regions. It grows in areas with salinated to fresh water and affected by tidal along with anaerobic soil conditions, where many grow in areas that are filled with mud and contain organic material. In the process of photosynthesis, mangrove captures carbon in the atmosphere and are stored in biomass and sediment. Sediment can store carbon greater than biomass and is rich of organic matter. Research regarding carbon storage in mangrove sediment on Payung Island has never been carried out which made this research aimed to estimate carbon storage in mangrove sediment on Payung Island. This research was conducted in October 2020 on Payung Island, South Sumatra and sediment samples were analyzed by the Walkley-Black oxidation method and the sediment texture was analyzed by the Shepard triangle method. The calculation results show the dominant sediment texture was in the clay category, the average value at each station for % C organic is 5,04% and % organic matter is 8,18% and carbon deposits in sediment are 129,6 tonC/ha.

Implementation of Life-Support Plantation Partnership Area Management Policy of PT. Bumi Mekar Hijau And Farmers Association (Gapoktan) Riding Bersatu In Riding Village, Ogan Komering Ilir District, South Sumatera Province Deni Priatna Priatna; Rujito Agus Suwignyo; Ardiyan Saptawan
Sriwijaya Journal of Environment Vol 5, No 2 (2020): NEW ENVIRONMENTAL ISSUES
Publisher : Program Pascasarjana Universitas Sriwijaya

Management of life-support plantation partnership area held by PT. BMH and Farmers Association (Gapoktan) Riding Bersatu had not yet effective because the management realization and community’s welfare had not yet improved. The purpose of this research was to analyze policy implementation effectiveness and arrange policy strategy to increase the realization of life-support plantation partnership area management. Unsuccessful program was influenced by program which did not successfully achieve the given benefit. In addition, program executor did not have agroforestry activity capability; executor’s commitment, and executor’s power, interest, also strategy in implementing agroforestry activity were not considerably play a role in realizing the success of the program. All stakeholders’ obedience and response also became an extremely important thing. If policy content variable did not reach the determined target, the program implementation would not generate optimal result. Therefore, strategy performed to optimize the program was by synchronizing policy content with the policy context in integrated policy system.

The Changes in Vast Mangrove Area of Pantai Air Telang Protected Forest Banyuasin District using Landsat Imagery Data Time Series Vina Fitriana; Rujito Agus Suwignyo; Siti Fauziyah
Jurnal Wasian Vol 4, No 2 (2017): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

This study aimed to obtain data about far-reaching changes on the total area of mangrove at Air Telang Beach Protected Forest through the interpretation of Landsat 7 imagery data using open source software (Ilwis 2000) in years 2000, 2003, 2006, 2009 and 2012. In the first phase, mangrove identification was conducted through cropped imagery data based on the research area which is path 124 raw 62 using RGB543 composite band. Then, mangrove and non-mangrove area are separated using unsupervised classification method. The next phase, mangrove density analysis is directed by applying NDVI formula. The results showed that the total area of mangrove has decreased over a period of 12 years by 10.72 % of total mangrove area on 2000 (7,968.54 ha) with 7,147.12 on 2012. Vegetation Index analysis shows high density mangrove is dominated although it continues to decrease, followed by increasing mangrove area with medium density.Keywords: Air Telang Beach Protected Forest, imagery data, mangrove total area, density.

IMPROVEMENT OF SEED VIABILITY AND VIGOR OF SEVERAL RICE VARIETIES WITH VARIOUS PRIMING METHODS Putri, Sheila Izdihar Hendra; Suwignyo, Rujito Agus; Negara, Zaidan Panji; Sulaiman, Firdaus; Irmawati, Irmawati
BIOVALENTIA: Biological Research Journal Vol. 9 No. 2 (2023)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.9.2.2023.392

Rice serves as Indonesia's main food source, but inadequate storage conditions can lead to seed deterioration and diminished germination performance. To enhance the viability and vigor of stored seeds, this study explores various priming methods' effects on multiple rice varieties. Employing a completely randomized design (CRD) with two factors, the first factor involves rice varieties (V) categorized by germination ranges: 41–50% (V1 = Toyonishiki, V2 = Yoneshiro), 51–60% (V3 = Jaya, V4 = IR50), 61–70% (V5 = Fortuna, V6 = Sulutan), and 71–80% (V7 = IR 24, V8 = Inpago 5). The second factor is seed priming (P), including control, hydropriming, and osmopriming. Results indicate that priming enhances maximum growth potential, germination percentage, vigor index, growth speed, plumule and radicle length, as well as fresh and dry weight. Hydropriming outperforms osmopriming, particularly in vigor index, growth speed, plumule and radicle length, and dry weight. Priming proves more effective in improving maximum growth potential, germination percentage, vigor index, and growth speed at lower germination percentage ranges (41–60%). The most significant priming-induced increases in radicle length, fresh weight, and dry weight occur in higher germination percentage ranges (61–80%)

Growth Evaluation of Backcross Progenies BC2F1 Experiencing Submergence and Non-submergence at BC1F1 and its Parents Jati, Winggi Anggun; Agus Suwignyo, Rujito; Susilawati; Muhardiyanto, Cahya
BIOVALENTIA: Biological Research Journal Vol. 10 No. 1 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.1.2024.431

The utilization of dual-resistant varieties that are resistant to soaking and drought in certain periods is an alternative to rice cultivation in swampy land. Inpara 8 is a variety that is confirmed to have SUB 1 gene, resistant to submerged stress and Inpago 5 is identified to be resistant to drought stress. Crosses were made between Inpara 8 (donor parent) with Inpago 5 (recipient parent), resulting in F1, then F1 was crossed back with Inpago 5 and produced BC1F1, then crossed back with Inpago 5 to become BC2F1. This paper contains an evaluation of the growth of BC2F1, which in the BC1F1 stage experienced submerged stress in the vegetative phase and which did not experience submerged stress. The research was carried out in August 2021 - January 2022 at the Greenhouse of the Department of Agricultural Cultivation, Faculty of Agriculture, Sriwijaya University. The results showed that in the vegetative phase, progeny BC2F1 TR has an average value of the highest per plant (113.64 cm) and the average per plant height Inpara 8 (3.93). In the generative phase, the fastest flowering time on the accession of BC2F1 TR (68 days), the fastest harvest time on Inpara 8 (122.93 days), while for the amount of grain per panicle, the amount of grain per clump, and dry weight on Inpago 5 (529.60 g, 2648 g, and 11.62 g). The average yield of BC2F1 progeny is more similar to Inpago 5 as the recipient parent. Both progeny have the same Sub 1 gene in them and can survive to produce, but Accessions that have experienced previous submerged stress are more vulnerable to growth so they have an impact on the resulting production.

Growth Evaluation of Selfcrossed Progenies BC1F2 Experiencing Submerged and Non-submerged at BC1F1 and its Parents Maulidya, Azzah; Agus Suwignyo, Rujito; Susilawati; Muhardiyanto, Cahya
BIOVALENTIA: Biological Research Journal Vol. 10 No. 1 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.1.2024.432

Abstract: A non-tidal swamp can increase rice cultivation and production, but its use is still dependent on natural conditions, making plants vulnerable to submergence and drought stress. Developing dual-tolerant varieties is essential for rice cultivation in non-tidal swamps. Inpara 8 carries the SUB1 gene, providing tolerance to submergence stress, while Inpago 5 is tolerant to drought stress. This study aimed to evaluate the growth of BC1F2 progeny from a cross between Inpara 8 and Inpago 5 under submerged stress, along with their parents (Inpago 5 and Inpara 8). The research was conducted in the greenhouse of the Agriculture Faculty at Sriwijaya University at coordinates 3°13'11.1"S 104°38'49.4"E from July 2021 to January 2022. Inpago 5 exhibited the highest average plant height (145.81 cm), the most tillers (4.73), the most productive tillers (3.87), the highest total grain per clump (720.87 grains), the heaviest clump grain weight (15.86 g), and the lowest percentage of empty grains (33.47%). The donor parent Inpara 8 had the highest average total grain per panicle (192.08) and the highest dry weight (20.69 g). BC1F2 Submerged progeny showed the highest average 1000-grain weight (25.26 g) and the fastest harvest age (114.50 DAP). The BC1F2 self-cross progeny subjected to submergence stress displayed characteristics similar to its parents, with no significant differences in observed parameters.

Co-Authors , Munandar Andi Wijaya Andi Wijaya Andi Wijaya ANDI WIJAYA Andi Wijaya Ardiyan Saptawan Asmawati Asmawati Damayanti, Rosa dan Andi Wijaya Deni Priatna Priatna Dr. Susilawati Susilawati Dwi Putro Priadi Entis Sutisna Halimi Evriani Mareza Fauziyah Firdaus Sulaiman, Firdaus Fitra, Mahturai Rian Gribaldi Gribaldi Hasmeda, Mery Hermialingga, Septi Hesty Sihombing I. Rahmawati Irmawati Irmawati Irmawati Irmawati Jati, Winggi Anggun M. Umar Harun M. Umar Harun Maulidya, Azzah Mery Hasmeda Mery Hasmeda Mery Hasmeda Moh Rasyid Ridho Muhardiyanto, Cahya Munandar Munandar Munandar Munandar Oktatora, Emilia Priatna, Deni Priatna Putranto, Dinar DA. Putri, Sheila Izdihar Hendra Sarno Sarno Septi Hermialingga Septi Hermialingga Sopiana, Rina Sulaiman Sulaiman Susilawati, Susilawati Tengku Zia Ulqodry Tengku Zia Ulqodry Vina Fitriana Wijaya Mardiansyah, Wijaya Zaidan Panji Negara Zainal Ridho Djafar Zainal Ridho Djafar Zulkifli Dahlan

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