Widodo Haryoko
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ONE OF THE CAUSES OF THE LOW PRODUCTIVITY OF RICE GROWN ON PEAT SOILS WAS THE HIGH LEVELS OF OF TOXIC PHENOLIC COMPOUNDS IN THE SOIL. DEVELOPMENT OF TOLERANT RICE VARIETIES IS ONE OF STRATEGIES TO GROW RICE ON PEAT SOILS. THE AIMS OF THIS RESEARCH WERE TO SELECT RICE VARIETIES TOLERANT TO PEAT SOILS AND TO STUDY THE CORRELATION BETWEEN THE PLANT PHENOLIC ACID CONTENT WITH PLANT TOLERANCE TO PEAT SOIL. THIS RESEARCH WAS CONDUCTED AT THE SEED FARM CENTRE LUBUK MINTURUN, PADANG FROM FEBRUARY TO JUL Haryoko, Widodo; Kasli, ,; Suliansyah, Irfan; Syarif, Auzar; Prasetyo, Teguh Budi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 40 No. 2 (2012): 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 | DOI: 10.24831/jai.v40i2.6358

Abstract

One of the causes of the low productivity of rice grown on peat soils was the high levels of of toxic phenolic compounds in the soil. Development of tolerant rice varieties is one of strategies to grow rice on peat soils. The aims of this research were to select rice varieties tolerant to peat soils and to study the correlation between the plant phenolic acid content with plant tolerance to peat soil. This research was conducted at the Seed Farm Centre Lubuk Minturun, Padang from February to July 2009. The research consisted of two experiments i.e. in peat soil and in mineral soil. The experiments used a completely randomized design using 21 varieties of rice as treatments which were replicated four times. The results showed that there were nine rice varieties categorized as tolerant to peat soil. These tolerant varieties showed higher stress tolerance index (STI), demonstrated by a high level of phenolic acids (coumaric, syringic, and ferulic) in the plant tissues. The STI value had positive correlation with the content of plant phenolic acids, thus the level of plant phenolic acids can be used as an indicator to determine tolerant rice varieties in peat soils. Keywords: peat soil, phenolic acids, tolerant rice, STI
PENAPISAN VARIETAS PADI TOLERAN SALINITAS PADA LAHAN RAWA DI KABUPATEN PESISIR SELATAN Utama, M. Zulman Harja; Haryoko, Widodo; Munir, Rafli; Sunadi, ,
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 (44.131 KB) | DOI: 10.24831/jai.v37i2.1401

Abstract

The experiment was aimed to determine the most suitable method for selection of salt-tolerant, and to investigate the agronomic characteristics of salt-tolerant rice variety.  Two experiments were conducted to study the tolerance of 18 varieties to salt: 1) in situ screening of salt-tolerant varieties using completely randomized design, and 2) screening of salt-tolerant varieties using factorial experiment (varieties and salinity) with completely randomized design. The experiment showed that screening of rice variety that tolerant and sensitive to salt stress can be determined by comparing root dry weights in salt stressed condition and in unstressed condition, and in term of agronomical aspect, salt stress-tolerant rice showed good growth when planted in the saline field.   Key words: Screening, rice, swamp areas and salt stress
EFFECT MODIFICATION OF THE RICE TECHNOLOGY PACKAGE TO IMPROVE PRODUCTION GRIPPED IRON Utama, M Zulman Harja; Sunadi, .; Haryoko, Widodo
Journal of Tropical Soils Vol 18, No 3: September 2013
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2013.v18i3.%p

Abstract

Rice is an important food crop in the world?s second after wheat and estimated rice demand in 2015 reached 55.8 million Mg.  Ministry of health stated that approximately 100 million people in Indonesia are suffer micronutrient deficiencies (iron and iodine), because they cannot afford to buy nutritious food but rely solely on the nutritional intake of rice. This study aimed to get the rice technology package to increase rice production that gripped the iron. This study consisted of two experiments which were test technology package with sri cultivation system and test modification technology packet with conventional cropping system. The experiment was arranged in a factorial with a completely randomized design and  three replications. The experiments were conducted from May to October 2012 in Koto Baru of Dharmasraya District, West Sumatra. In rice cultivation gripped Fe2+ with the system rice intensificatin (SRI).  The results showed thta the best package technology was the combination of: Krueng Aceh + peat soil (saphrict) 20 Mg ha-1 + square (10 × 10) × 30 cm with one seed per hole (age 10 days) + 5.0 mg kg-1 auxin. In this package technology, production of milled rice was 7.06 Mg ha-1, while the iron content in rice grain varieties Krueng Aceh and Tukad Balian were 31.44 mg kg-1 and 34.99 mg kg-1, respectively.Keywords: Auxin,  Fe2+, rice package technology [How to Cite: Utama MZH, Sunadi and W Haryoko. 2013. Effect Modification of the Rice Technology Package toImproveProduction Gripped Iron. JTrop Soils 18 (3): 195-202. Doi: 10.5400/jts.2013.18.3.195][Permalink/DOI: www.dx.doi.org/10.5400/jts.2013.18.3.195]REFERENCESAmang B dan  MH Sawit. 1999. Kebijakan beras dan pangan nasional, pelajaran dari orde baru dan era reformasi. IPB, Bogor (in Indonesian). Anonymous. 2007. Kabupaten Dharmasraya dalam angka. Bappeda Dharmasraya dan BPS, Sumbar (in Indonesian). Anonymous. 2012. Padi berkadar besi tinggi dari kedelai, upaya mengatasi anemia.  Kompas, 22 November 2012 (in Indonesian). Audebert A and KL Sahrawat. 2000. Mechanisms for iron toxicity tolerance in lowland rice. J Plant Nutr 23: 1877-1885.Barchia MF. 2009. Agroekosistem tanah mineral masam. UGM, Press. Yokyakarta (in Indonesian).Becker M and F Asch. 2005. Iron toxicity in rice-condition and management concept. J Plant Nutr Soil Sci. 168: 558-573.Bilman  WS. 2008. Modifikasi lingkungan melalui sistem penanaman serta penambahan bahan organik dan zat pengatur tumbuh dalam upaya peningkatan produktifitas padi gogo (Oryza sativa L.). Disertasi, Unand. Padang (in Indonesian).Delhaize E and  PR  Ryan. 1995. Aluminum toxicity and tolerance in plants. Plant physiol. 107: 315-321.Dorlodot S, S Lutts, and P Bertin. 2005. Effect of ferrous iron toxicity on the growth and mineral competition of an interspecific rice. J Plant Nutr. 28: 1-20. Haryoko W, Kasli, I. Suliansyah,  A Syarif and TB Prasetyo. 2012. Toleransi beberapa varietas padi sawah gambut berkorelasi dengan kandungan asam fenolat. J Agron Indon 40: 112-118 (in Indonesian).Hopkins WG. 1995. Introduction to Plant Physiology. The University of  Western Ontario. John Wiley and Sons, INC.Finesso GM. 2012. Mencari padi berzat besi tinggi, memanen matahari. Kompas, 12 Juni 2012 (in Indonesian).ageria NK, AB Santos, MPB Filho and CM Guimaraes. 2008. Iron toxicity in lowland rice. J Plant Nutr 31:  1676-1697.Ma JF. 2000. Role of organic acids in detoxification of aluminum in higher plants. Plant Cell Physiol 41: 383-390.Noor A, I Lubis, M Ghulamahdi, MA Chozin, K Anwarand and D. Wirnas. 2012. Pengaruh konsentrasi besi dalam larutan hara terhadap gejala keracunan besi dan pertumbuhan tanaman padi. J Agron Indonesia 40: 91-98Peng XX and M Yamauchi. 1993.  Ethylene production in rice bronzing leaves induced by ferrous iron. Plant Soil 149: 227-234.Rengel Z. 2000. Mineral nutrition of crops, fundamental mechanisms and implications. Food production press, Binghamton.Sahrawat  KL. 2004. Iron toxicity in wetland rice and the role of other nutrients. J Plant Nutr 27: 1471-1504.Sahrawat KL. 2010. Reducing iron toxicity in lowland rice with tolerant genotypes and plant nutrition. J Plant Stress 4:70-75.Salisbury FB and CW Ross. 1992. Plant physiology. Fourth edition. Wadsworth, Belmont, California. 681 p.Sunadi, M Kasim, A Syarif and N Akhir. 2006. Pertumbuhan dan hasil padi sawah dalam metode SRI dengan pengaturan jumlah bibit rumpun per rumpun  sistem tanam satu-satu. J Gakuryoku 12: 120-123 (in Indonesian).Sunadi,  I Wahidi and  MZH Utama. 2010. Penapisan varietas padi toleran cekaman Fe2+ pada sawah bukaan baru dari aspek agronomi dan fisiologi. J Akta Agrosia 13: 16-23 (in Indonesian).Utama MZH. 2008. Mekanisme fisiologi toleransi cekaman aluminium  pada spesies  legum penutup tanah  terhadap metabolisme Nitrat (NO3-), amonium (NH4+), dan nitrit (NO2). Bull Agron  36: 175-179 (in Indonesian). Utama MZH. 2010a. Penapisan varietas padi gogo toleran cekaman aluminium. J Agron Indon 38: 163-169 (in Indonesian).Utama  MZH. 2010b. Effect of  NaCl-stress on metabolism of NO3-, NH4+ and NO2- at several rice varieties. J Trop Soils 15: 189-194.  doi: 10.5400/jts.2010.15.3.189.Utama MZH,  W Haryoko, R  Munir  and  Sunadi. 2009. Penapisan varietas padi toleran salinitas pada lahan rawa  di  Kabupaten  Pesisir  Selatan. J Agron Indon 37: 101-106 (in Indonesian). Utama MZH,  I  Wahidi and Sunadi. 2012. Response of some rice cultivars seized with Fe2+  new opening paddy fields with multi package technology. J Trop Soils 17: 239-244. doi: 10.5400/jts.2012.17.3.239.Yang  J,  S  Peng,  Z  Zhang,  Z  Wang,  RM  Visperas, Q  Zhuand  and L Liu. 2002. Grain and dry matter yields and partitioning of assimilates in japonica/indica hybrid rice. Crop Sci 42: 766-772.Yayock  JY,  G Lombin and JJ Owonuhi. 1997.  Crop Science and production in warm climates. Mac Millan Intermediate Agriculture series. General of ochapa in Ozomi.
MEKANISME ADAPTASI JAGUNG TERHADAP CEKAMAN NACL: POLA SERAPAN ANION DAN KATION Utama, Muhammad Zulman Harja; Haryoko, Widodo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 3 (2019): 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 (437.417 KB) | DOI: 10.24831/jai.v47i3.25439

Abstract

Salt solubility is the abiotic pressure which has the most effect on the loss of plant quantity and quality. Salinity not only makes plants stressful but also presents severe constraints on crop production so an attempt to understand plant adaptation mechanisms is important for expanding agricultural production on saline soils. This study aimed to obtain a mechanism for the adaptation of hybrid and composites maize to NaCl stress through anion and cation absorption patterns. The experiments were carried out at the LLDikti Region X Laboratory from May to August 2016. The experiments were arranged in a factorial complete randomized design with three replications. The first factor was corn varieties, namely: hybrid corn (Pioneer 22 and Bisi 12), and composite corn (Bisma and Sukmaraga). The second factor was level of NaCl, namely: 0.0 mg kg-1 NaCl pH 5.0, and 4,000 mg kg-1 NaCl pH 5.0. Measurement of anions and cations using Spectroquant Thermoreator TR Nova 420. The adaptability of hybrid maize and composites to NaCl stress occurred through the mechanism of anion absorption and cation metabolism. The difference in the percentage of NO3-, NO2-, PO4-, NH4+, and K+ levels between hybrid maize varieties and composites showed a difference in the adaptation ability of maize varieties to salinity stress. Keywords: abiotic, mechanism, salinity, varieties
RESPON VARIETAS KACANG TANAH (ARACHIS HYPOGAEA L.) TERHADAP PERLAKUAN PUPUK KANDANG SAPI Surya, Rinny Agri; Haryoko, Widodo; Utama, M. Zulman Harja
Jurnal Sains Agro Vol 4, No 1 (2019): Jurnal Sains Agro
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.704 KB) | DOI: 10.36355/jsa.v4i1.249

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This study aims to determine the effect of interactions between peanut varieties and treatment of cow dung. This research was conducted in Kalumbuk Village, Padang City, West Sumatra from September to December 2018. The study was conducted using Factorial Completely Randomized Design. The experimental treatment consisted of two factors. The first factor consisted of 3 peanut varieties, namely varieties of Talam 1, Takar 2 and Tala 1. The second factor was cow dung which consisted of 4 levels namely 0 tons ha-1, 5 tons ha-1, 10 tons ha-1 and 15 ton ha-1. The combination of each treatment obtained 9 units with replications 3 times. The parameters observed were plant height, number of primary branches, number of nodules, age of flower appearance, number of pods, percentage of soft pods, weight of pods per clump, number of seeds, weight of 100 seeds, dry pod weight per plot and per hectare. The results showed that the interaction of peanut varieties with cow manure treatment on the parameters of the number of nodules and the production of the weight of dry pods per hectare was highest, namely in the Talam 1 variety with 15 tons ha-1 cow dung. Keywords: Cow Manure, Peanut Varieties