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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Prosiding SNATIF AGRIVITA, Journal of Agricultural Science Jurnal Penelitian Pertanian Terapan SAINS TANAH - Journal of Soil Science and Agroclimatology JURNAL AGRI-TEK Akta Agrosia Makara Journal of Science Jurnal Ilmu-Ilmu Pertanian Agroscript: Journal of Applied Agricultural Sciences
Prapto Yudono
Fakultas Pertanian, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education

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IDENTIFIKASI SIFAT BENIH KAWISTA (Feronia limonia (L.) Swingle) UNTUK TUJUAN PENYIMPANAN Murrinie, Endang Dewi; Yudono, Prapto; Purwantoro, Azis; Sulistyaningsih, Endang
Prosiding SNATIF 2017: Prosiding Seminar Nasional Teknologi dan informatika (BUKU 1)
Publisher : Prosiding SNATIF

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Abstract

AbstrakPenanganan benih yang tepat dapat mempertahankan mutu benih selama penyimpanan atau dapat menekan laju kemunduran benih seminimal mungkin. Dalam terminologi penanganan benih terdapat tiga kelompok benih yaitu benih ortodoks, rekalsitran dan intermediate. Sampai saat ini belum diketahui apakah benih kawista masuk dalam kelompok ortodoks, rekalsitran atau intermediate sehingga dalam rangka untuk mempertahankan viabilitasnya selama dalam penyimpanan perlu dilakukan identifikasi sifat benih kawista. Tujuan penelitian adalah mengidentifikasi sifat benih kawista untuk tujuan penyimpanan. Benih kawista yang digunakan berasal dari Desa Dasun, Kecamatan Lasem, Kabupaten Rembang. Pengujian sifat benih dengan menggunakan metode yang dikemukakan Hong & Ellis (1996). Selain itu juga dilakukan pengamatan terhadap bobot kering dan kadar air benih selama perkembangan benih mulai dari antesis sampai benih masak. Hasil penelitian menunjukkan benih kawista termasuk dalam kriteria benih ortodoks, karena tetap menunjukkan viabilitas yang tinggi yang ditunjukkan oleh persentase perkecambahan yang tetap tinggi dan tidak berbeda nyata pada beberapa tingkat kadar air. Persentase perkecambahan berkisar antara 96,0-98,5% pada semua kadar air, yaitu kadar air 40,6% (kadar air setelah ekstraksi); 10,5% dan 5,5% (baik sebelum maupun setelah disimpan tiga bulan pada suhu -20 0C) dengan bobot kering kecambah yang tidak berbeda nyata.  Kata kunci: benih, kawista, ortodoks, rekalsitran
Karakterisasi Pola Mineralisasi N Pupuk Organik Pada Tanah Sawah Organik Winarni, Marti; Yudono, Prapto; Indradewa, Didik; Hendro Sunarminto, Bambang
JURNAL AGRI-TEK Vol 16, No 1 (2015): JURNAL AGRI-TEK
Publisher : JURNAL AGRI-TEK

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Abstract

Organic rice cultivation rely only source of nutrients of organic fertilizers and other natural inputs. One way to meet the needs of nitrogen in organic rice cultivation is to utilize the organic fertilizers. The purpose of this study was to examine the influence of the type of organic fertilizers on N-available content in the soil, the characterization of the pattern of mineralization of N-available from types of organic fertilizer, and determine the three types of organic fertilizer which has a pattern of fast nitrogen mineralization, medium and slow. This research was conducted through experimental methods in greenhouse Faculty of Agriculture of Gadjah Mada University from November 2012 until May 2013. Experiments using randomized completely design (RCD), consisting of 1 factor and 3 replications. These factors is incubation organic fertilizer in soil organic lowland, consisting of 10 types: Callyandra callothyrsus, Leucaena leucocephala, Sesbania grandiflora, Albizia falcata, Cassia siamea, Gliricidia sepium, Samania saman, Herocarpus indica, manure, and control (without organic fertilizer). The results showed that the use of organic fertilizers can improve the content of N-available in the soil as compared to manure and without organic fertilizer. In general, the pattern of nitrogen mineralization of organic fertilizers on soil organic lowland started 3 weeks after incubation and increased up to 9 weeks after incubation, and then decreased 12 weeks after incubation period. Sesbania grandiflora, Gliricidia sepium and Leucaena leucocephala, respectively, have the character pattern nitrogen mineralization fast, medium and slow.Keywords: organic fertilizers, N mineralization, soil organic lowland
Effect of Acetic Acid as Pre-Emergence Herbicide on Maize Germination Pujisiswanto, Hidayat; Yudono, Prapto; Sulistyaningsih, Endang; Sunarminto, Bambang Hendro
Jurnal Penelitian Pertanian Terapan Vol 15, No 1 (2015)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.136 KB) | DOI: 10.25181/jppt.v15i1.113

Abstract

Profitable crop production starts with a weed control program that includes pre-emergence herbicides to deliver long-lasting, residual weed control. Pre-emergence herbicides are applied to prevent the germination of weed seeds. The study was conducted to determine the effect of acetic acid as a pre-emergence herbicide on maize germination. Pots experiment was conducted on August until September 2012. The experimental design used was Completely Randomized Design (CRD) single factor in four replicates. The application of pre-emergence acetic acid at several concentration, i.e. control (no acetic acid) 0%, 10% acetic acid and 20% acetic acid. The result showed that the pre-emergence aplication at 10% and 20% of the glacial acetic acid solution lowered pH were 5,12 and 5,43 respectively at one week after application, so that inhibited maize germination. No shoots and roots were grew. This was due to the increase of electrical conductivity (EC) or electrolyte leakage caused by the high permeability of the damaged membrane of seed. The EC of control treatment was 11?S/cm g, compared to 10 and 20% treatment of acetic acid were 36 ?S / cm g and 55 ?S / cm g EC respectively. Increasing concentration of acetic acid caused the higher of protein content leaked, i.e. 7,95%, 7,32% and 7,03% respectively for without acetic acid treatment, 10% and 20% acetic acid. Acetic acid also inhibited respiration rate of maize seed, where the higher concentration of acetic acid produced the lower respiration rate, i.e. 31.63 mg/g/hour, 12.38 mg/g/hour and 2,75 mg/g/hour respectively for without acetic acid treatment, 10% and 20% acetic acid. Keywords : Acetic Acid, Maize (Zea mays L.), Germination, Pre-Emergence Herbicide
Effects of auxin and cytokinin levels on the success of air layering in tea plant clones of GMB 7 and GMB 9 using husk charcoal, cocopeat and moss media Widyastuti, Ika Betty; Yudono, Prapto; Putra, Eka Tarwaca Susila
Jurnal Ilmu Pertanian Vol 5, No 2 (2020): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2848.866 KB) | DOI: 10.22146/ipas.53019

Abstract

The research aimed to propagate tea plants by air layering in order to obtain new plants with shorter immature plants period (TBM), which is 1.5 years, by utilizing wasted branches from routine clean pruning activities in tea plantations. The research was conducted from August 2018 to January 2019 at tea plantation of PT. Pagilaran, Batang, Central Java. Experiment using single factor treatment was arranged in a Completely Randomized Design with three replications. The treatment was layering media, consisting of husk charcoal, moss, and cocopeat, which were applied on GMB 7 and GMB 9 clones. The results showed significant effects of the layering media on the levels of auxin and cytokinin in GMB 7. The highest levels were found in the husk charcoal and moss media. Analysis of sucrose, glucose and total sugar as well as the physiological analysis of the air layering roots showed no significant difference in the fresh weight, dry weight, volume, surface area, diameter, and length of the roots. Husk charcoal resulted in the highest success rate of the air layering in GMB 7, which was 100%. Meanwhile, GMB 9 showed significant difference only in the auxin levels. There was no significant effect of layering media on the analysis of sucrose, glucose and total sugar as well as on the physiological analysis of the air layering roots. Both husk charcoal and moss media resulted in the highest success rate of the air layering in GMB 9, which was 58.33%.   
Physiological Responses of Jatropha to Drought Stress in Coastal Sandy Land Conditions Parwata, I Gusti Made Arya; Indradewa, Didik; Yudono, Prapto; Kusmarwiyah, Rukmini
Makara Journal of Science Vol. 16, No. 2
Publisher : UI Scholars Hub

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Abstract

Jatropha curcas L., an important tropical biofuel crop, is reputed for its drought resistance, however, its ability to perform in dry conditions has still hardly been investigated. Changes in leaf water status, chlorophyll content, leaf surface temperature, stomatal conductance, proline and abcisic acid (ABA) content, transpiration and photosynthetic rate were studied in four Jatropha genotypes (IP-1A, IP-2M, Local superior and Yellow leaf) and subjected to drought stress in coastal sandy land conditions in Central Java, Indonesia. Drought stress significantly decreased the leaf water status, leaf chlorophyll content, stomatal conductance, transpiration and photosynthetic rate, and increased leaf temperature, proline and ABA content. Resistant genotypes (IP-1A and IP-2M) had significantly higher leaf water status, chlorophyll content and photosynthetic rate than susceptible genotypes (Local superior and Yellow leaf). There were no differences between the Jatropha genotypes on leaf temperature, stomatal conductance and transpiration rate
Pengaruh Bentuk Formulasi dan Waktu Aplikasi Kulit Buah Jengkol pada Pertumbuhan Padi Sawah Asal Bibit Nurjanah, Uswatun; Yudono, Prapto; Suyono, A.T; Shieddiq, Dja’far
Akta Agrosia Vol 17 No 2 (2014)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Jengkol pod exocarp can be used as anorganic fertilizer for rice cultivation. A research aimed to determine an appropriate formulation and application time of jengkol pod exocarp on paddy rice seedling growth. Thisstudy consisted of 2 factors. The first factor was formulation, namely liquid, powder or granules. The second factor was time of application, namely at planting, 1 or 2 weeks after planting. These treatments were arrangedin a Completely Randomized Design with 3 replications. The results showed that the application of jengkol pod exocarp in the form of granule improved root growth, N, P, K uptake, photosynthesis rate, but not dry weight. Thetime application of jengkol pod exocarp two weeks after planting increased N and P uptake, transpiration rate, photosynthesis rate and root dry weight.
UPAYA PENINGKATAN HASIL BENIH PADI ORYZA SATIVA. L) PADA BERBAGAI TARAF GENANGAN AIR DAN TAKARAN VERMIKOMPOS DI LAHAN SAWAH IRIGASI ENTISOL Nugrohotomo, Nugrohotomo; Yudono, Prapto; Syukur, Abdul
Jurnal Ilmu-Ilmu Pertanian Vol. 5 No. 2 (2009): Desember
Publisher : Politeknik Pembangunan Pertanian Yogyakarta-Magelang

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Abstract

The field research that was designed to study the effect of submerged level and vermicompost dosage to the quantity and quality of paddy seeds (Oryza sativa L) yield on irigated Entisol rice field was conducted from February 10"', 2007 to May 28'', 2007 in the Kadirojo farmer's ricefield, Purwomartani village, Kalasan District, Sleman, Yogyakarta. The location of experiment had entisol soil type, the average annual rainfall of 2075 millimeters in Oldeman, C3 climate classification, at an elevation of 110 meters above sea level. The research was carried out using 3 x 3 factorial experiment regulated by three replication of Split Plot Design. The level of submerged rice soil in vegetative phase (A) is main factor consisting of three level treatments, namely A1 = 6 days damp + 3 days submerged condition, A2=12 damp + 3 days submerged condition and A3= completely submerged condition in vegetative phase. The dosage in vermicompost as the sub factors consisted of three. level of treatments (T) that is T1 = 1 ton, T2 = 2 tons, and T3 = 4 tons hectare-1 The result of the experiment showed that among submerged rice soil vegetative phase treatments, A2 treatment provided the highest paddy seeds yield (6,97 tons hectares-1 a=5%) and among the dosage of vermicompost treatment T2 = 2 tons and T3 = 4 ton tons hectares-1 had significant influence to obtain the highest paddy seeds yield (6,75 and 7,12 tons hectares-t a=5%). Submerged level treatment and vermicompost dosage had no effect on the quality of paddy seed. There wes no interaction treatment between submerged level rice soil vegetative phase and the dosage of vermicompost.
Incidence of Soybean Mosaic Disease in East Java Province Andayani, Wuye Ria; Sumardiyono, Y. B.; Hartono, Sedyo; Yudono, Prapto
AGRIVITA Journal of Agricultural Science Vol 33, No 1 (2011)
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.v33i1.34

Abstract

The objectives of this study were: 1) to identify the mosaic symptom severity and the incidence the virus and relate these to soybean yield reduction is four regions of East Java; 2) diagnostic of the symptom using Indirect ELISA, RT-PCR and electron microscope observation. Results from experiments indicated that soybean plants infected with SMV and CMMV, alone or in combination produced mosaic symptom. Incidence of the virus, as judged by symptomatology, ranged from mild to severe infection the percentage of plants being from 13.42-30.10%. Soybean plants with mosaic symptom caused SMV from an early stage of development (14-28 days after planting). Soybean mosaic virus belongs to the virus family Potyviridae. Specific DNA fragment of 1687 bp was successfully amplified from soybean infected by SMV isolate Ngawi, Madiun, Magetan, and Ponorogo. Specific DNA fragment of 1385 bp was successfully amplified from SMV by CI coding region. The mosaic symptom on soybean plant (28-42 days after planting) caused CMMV. Flexious virus particle 650 nm in length was observed on electron microscope. It caused local lesions on Chenopodium amaranticolor, but not detected by I ELISA with antiserum SMV and RT-PCR with universal primer. Keywords: SMV, CMMV, I.ELISA, RT-PCR.
Permeabilitas dan Perkecambahan Benih Aren (Arenga pinnata (Wurmb.) Merr.) Widyawati, Nugraheni; Tohari, ,; Yudono, Prapto; Soemardi, Issirep
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (51.493 KB) | DOI: 10.24831/jai.v37i2.1408

Abstract

The characteristics of seed coat delay the germination of sugar palm seeds. A research was carried out to investigate the permeability of sugar palm seeds and accelerate the germination. The research consists of four experiments with purposes: 1. to investigate the distribution of water content of sugar palm seed (RCBD Factorial between part of seed : whole seed, seed coat, endosperm and embryo under three conditions: control; soaking in water and germinate, 5 replications); 2. to investigate seed permeability (RCD, 6 soaking periods, 4 replications); 3. to investigate the content of lignin and tannin in seed (RCD, 8 seed ages, 4 replications); 4. to accelerate seed germination (RCBD, 6 treatments of scarification, 4 replication).  The results showed that the permeability of sugar palm seeds to water absorption declined with seed maturity because of the increasing in lignin and tannin content. Seed germination can be accelerated with scalding on the operculum site to increase water absorption.   Key words: Sugar palm, seeds, permeability, germination
Pengelompokan Genotipe Jarak Pagar Berdasarkan Ketahanannya terhadap Kekeringan pada Fase Pembibitan di Lahan Pasir Pantai Parwata, I Gusti Made Arya; Indradewa, Didik; Yudono, Prapto; Kertonegoro, Bambang Djadmo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 2 (2010): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.724 KB) | DOI: 10.24831/jai.v38i2.1801

Abstract

Extension of jatropha planting on coastal sandy soil is an effort to look for an alternatif area to other soil types, this experiment is one of a series experiment aiming to classify jatropha based on their drought resistance, and to determine watering interval causing drought stress. The experiment was arranged using Split Plot Design with watering interval (once in 1, 3, 5, 7, and 9 day (s)) as main plot, and jatropha genotypes (IP-1A, IP-1M, IP-1P, IP-2A, IP-2M, IP-2P, Unggul Lokal (NTB), Gundul and Daun Kuning) as sub plot. The seeds of genotypes were planted in black polybag with coastal sandy soil media. The parameters observed were plant height, stem diameter, number of leaf, leaf width and plant dry weight, and the data collected were analyzed using Analysis of Variance, DMRT, Regrression and Cluster Analysis. The result showed that IP-1A, IP-2M, Gundul and IP-1M are the resistant genotypes, whereas Unggul Lokal, Daun Kuning, IP-2A and IP-2P are the susceptible genotypes. Once in one and three day (s) are optimum watering intervals, and once in nine days is a watering interval causing drought stress. Keywords : jatropha, drought, watering, coastal sandy soil
Co-Authors , Tohari Abdul Syukur Adileksana, Cahyo Azis Purwantoro Bambang Djadmo Kertonegoro Bambang Hendro Sunarminto Bambang Hendro sunarminto Benito Heru Purwanto Dewi Hs, Endang Sri Didik Indradewa Eka Tarwaca Susila Putra Endang Sulistyaningsih Hidayat Pujisiswanto I Gusti Made Arya Parwata Issirep Soemardi Nugraheni Widyawati Nugrohotomo, Nugrohotomo Nurjanah, Uswatun Putra, Fajrin Pramana Rukmini Kusmarwiyah SEDYO HARTONO Shieddiq, Dja’far Susilaputra, Eka Tarwaca Suyono, A.T Syamsul Arifin Toyip Toyip Waluyo, dan Sriyanto Widyastuti, Ika Betty Wijoyo, Rachmanto Bambang Winarni, Marti Wuye Ria Andayani Y. B. Sumardiyono