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African Journal of Agricultural Research Volume 12 Number 43 26 October, 2017 ISSN 1991-637X ABOUT AJAR The African Journal of Agricultural Research (AJAR) is published weekly (one volume per year) by Academic Journals. African Journal of Agricultural Research (AJAR ) is an open access journal that publishes high- quality solicited and unsolicited articles, in Engli sh, in all areas of agriculture including arid soil research and rehabilitation, agricultural gen omics, stored products research, tree fruit production, pesticide science, postharvest biology and technology, seed science research, irrigation, agricultural engineering, water resources management, marine sciences, agronomy, animal science, physiology and morphology, aquaculture, crop science, dairy science, entomology, fish and fisheries, fore stry, freshwater science, horticulture, poultry science, soil science, systematic biology, ve terinary, virology, viticulture, weed biology, agricultural economics and agribusiness. All artic les published in AJAR are peer- reviewed. Contact Us Editorial Office: [email protected] Help Desk: [email protected] Website: http://www.academicjournals.org/journal/AJAR Submit manuscript online http://ms.academicjournals.me/ . Editors Dr. Bampidis Vasileios National Agricultural Research Foundation Prof. N.A. Amusa (NAGREF), Animal Research Institute 58100 Editor, African Journal of Agricultural Research Giannitsa, Academic Journals. Greece. Dr. Panagiota Florou-Paneri Dr. Zhang Yuanzhi Laboratory of Nutrition, Laboratory of Space Technology, Faculty of Veterinary Medicine, University of Technology (HUT) Kilonkallio Espoo, Aristotle University of Finland. Thessaloniki, Greece. Dr. Mboya E. Burudi Prof. Dr. Abdul Majeed International Livestock Research Institute Department of Botany, University of (ILRI) P.O. Box 30709 Nairobi 00100, Gujrat,India, Director Horticulture, Kenya. and landscaping. Dr. Andres Cibils India. Assistant Professor of Rangeland Science Dept. of Animal and Range Sciences Prof. Suleyman TABAN Box 30003, MSC 3-I New Mexico State University Department of Soil Science and Plant Las Nutrition, Faculty of Agriculture, Cruces, Ankara University, NM 88003 (USA). 06100 Ankara-TURKEY. Dr. MAJID Sattari Prof.Hyo Choi Rice Research Institute of Graduate School Iran, Amol-Iran. Gangneung-Wonju National University Gangneung, Dr. Agricola Odoi Gangwondo 210- University of Tennessee, 702, Korea. TN., USA. Dr. MATIYAR RAHAMAN KHAN Prof. Horst Kaiser AICRP (Nematode), Directorate of Department of Ichthyology and Fisheries Science Research, Bidhan Chandra Krishi Rhodes University, PO Box Viswavidyalaya, P.O. Kalyani, Nadia, PIN- 94, South Africa. 741235, West Bengal. India. Prof. Xingkai Xu Institute of Atmospheric Physics, Prof. Hamid AIT-AMAR Chinese Academy of University of Science and Technology, Sciences, Beijing 100029, Houari Bouemdiene, B.P. 32, 16111 EL-Alia, China. Algiers, Algeria. Dr. Agele, Samuel Ohikhena Department of Crop, Soil and Pest Prof. Sheikh Raisuddin Management, Federal University of Department of Medical Elementology and Technology Toxicology,Jamia Hamdard (Hamdard University) PMB 704, New Akure, Delhi, Nigeria. India. Dr. E.M. Aregheore Prof. Ahmad Arzani The University of the South Pacific, Department of Agronomy and Plant Breeding School of Agriculture and Food Technology College of Agriculture Alafua Campus, Isfahan University of Technology Apia, SAMOA Isfahan-84156, Iran. Dr. Mohamed A. Dawoud Editorial Board Water Resources Department, Terrestrial Environment Research Centre, Dr. Bradley G Fritz Environmental Research and Wildlife Development Agency Research Scientist, (ERWDA), Environmental Technology Division, P. O. Box 45553, Battelle, Pacific Northwest National Laboratory, Abu Dhabi, 902 Battelle Blvd., Richland, United Arab Emirates. Washington, USA. Dr. Phillip Retief Celliers Dept. Agriculture and Game Management, Dr. Almut Gerhardt LimCo PO BOX 77000, NMMU, International, University of PE, 6031, Tuebingen, Germany. South Africa. Dr. Celin Acharya Dr. Rodolfo Ungerfeld Dr. K.S.Krishnan Research Associate (KSKRA), Departamento de Fisiología, Molecular Biology Division, Facultad de Veterinaria, Bhabha Atomic Research Centre (BARC), Lasplaces 1550, Montevideo 11600, Trombay, Mumbai-85, Uruguay. India. Dr. Timothy Smith Dr. Daizy R. Batish Department Stable Cottage, Cuttle Lane, of Botany, Panjab University, Biddestone, Chippenham, Chandigarh, Wiltshire, SN14 7DF. India. UK. Dr. Seyed Mohammad Ali Razavi Dr. E. Nicholas Odongo, University of Ferdowsi, 27 Cole Road, Guelph, Department of Food Science and Technology, Ontario. N1G 4S3 Mashhad, Canada. Iran. Dr. D. K. Singh Dr. Yasemin Kavdir Scientist Irrigation and Drainage Engineering Division, Canakkale Onsekiz Mart University, Central Institute of Agricultural Engineeinrg Department of Soil Sciences, Terzioglu Bhopal- 462038, M.P. Campus 17100 India. Canakkale Turkey. Prof. Hezhong Dong Professor of Agronomy, Prof. Giovanni Dinelli Cotton Research Center, Department of Agroenvironmental Science and Shandong Academy of Agricultural Sciences, Technology Jinan 250100 Viale Fanin 44 40100, Bologna China. Italy. Dr. Ousmane Youm Prof. Huanmin Zhou Assistant Director of Research & Leader, College of Biotechnology at Inner Mongolia Integrated Rice Productions Systems Program Agricultural University, Africa Rice Center (WARDA) 01BP 2031, Inner Mongolia Agricultural University, No. 306# Cotonou, Zhao Wu Da Street, Benin. Hohhot 010018, P. R. China, China. African Journal of A gricultural Research Table of Contents: Volume 12 Number 43, 26 October, 2017 ARTICLES Rice false smut and its management in major rice growing areas in Ashanti region of Ghana 3129 Daniel Dokie Tokpah, Charles Kwoseh, Eric Saye Tokpah and David Kolleh Performance of the Brachiaria hybrid ‘Mulatto II’ under different doses and forms of limestone application in the Amazon 3137 Ana Caroline Messias de Magalhães, Luís Henrique Ebling Farinatti, Maurifran Oliveira Lima, Edson Alves de Araújo and Fernando Bezerra Lopes Relative competitiveness of Phaseolus vulgaris with Bidens pilosa 3144 Pedro Valério Dutra Moraes, Andressa Camana, Jhessica Bortolotti, Maira Cristina Schuster, Cristiana Bernardi Rankrape, Lucas da Silva Domingues and Paulo Fernando Adami Influence of pre-germination treatments on germination seed in Melanoxylon brauna Schott 3149 Juliana Müller Freire, Thasso José Silva e Sousa, Glauciana da Mata Ataíde, Tiago Böer Breier and Janaína Ribeiro Costa Rouws The effect of vegetation covers on the physical properties of a red latosol 3154 Mauro Eloi Nappo, Reginaldo Sérgio Pereira, Eder Pereira Miguel, Ricardo de Oliveira Gaspar, Eraldo Aparecido Trondoli Matricardi, Humberto Angelo, Milton Serpa de Meira Junior, Ailton Teixeira do Vale and Ildeu Soares Martins The effects of interest rates on access to agro-credit by farmers in Kaduna State, Nigeria 3160 B. M. Ali, F. U. Agbo, I. C. Ukwuaba and C. J. Chiemela Vol. 12(43), pp. 3129-3136, 26 October, 2017 DOI: 10.5897/AJAR2017.12508 Article Number: 6B42F7D66472 African Journal of Agricultural ISSN 1991-637X Copyright ©2017 Research Author(s) retain the copyright of this article http://www.academicjournals.org/AJAR Full Length Research Paper Rice false smut and its management in major rice growing areas in Ashanti region of Ghana Daniel Dokie Tokpah1*, Charles Kwoseh2, Eric Saye Tokpah1 and David Kolleh1 1Central Agricultural Research Institute (CARI), P. O. Box 3929, Suakoko, Bong County, Liberia. 2Department of Crop and Soil Sciences, Kwame Nkrumah University of Science and Technology, Ghana. Received 8 June, 2017; Accepted 10 August, 2017 Ustilaginoidea virens, the pathogen that causes rice false smut (RFS) disease induces infertility in infected spikelets, reduces grain weight and caused up to 75% yield loss. Surveys on RFS disease were conducted from September to December, 2015 in 60 rice farms within three districts: Ejisu-Juaben, Ejura- Sekyedumase and Asante Akim-North, in the Ashanti region of Ghana. Incidence and severity, as well as farmers’ perception of the disease were obtained using questionnaires. Symptomatic rice panicles were collected from farms for identification of associated pathogen in the laboratory. Effect of four inorganic fungicides: Mancozan super, Suncozeb, Nordox and Sidalco Defender on mycelial growth and sporulation of the RFS pathogen were studied using the food poisoning method. Fourteen rice varieties were evaluated for their response to the disease. The surveys revealed that most (60%) of the farmers had no knowledge of the disease. The highest incidence of RFS disease was observed at Duampompo (23.3%) in Ejisu-Juaben Municipal/District, Ntemaso (23.3%) in Ejura-Sekyedumase District, and Habitat (38.0%) in Asante-Akim North District. The highest severity was observed at Ntemaso (5.0) in Ejura- Sekyedumase and Habitat (7.6) in Asante-Akim North District, with Bomfa recording the highest severity (5.0) in the Ejisu-Juaben Municipal. U. virens was isolated from diseased rice samples collected from the surveyed fields. The four fungicides evaluated exhibited 100% inhibition on the growth of U. virens mycelium eight days after inoculation in vitro however, Nordox was the most efficient after 23 days inoculation and the Mancozan super was the least efficient. Evaluation on rice varieties response to U. virens should be repeated and the effectiveness of fungicides should be tested under the field-infected plants in order to sustain the present results. Key words: Ustilaginoidea