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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/6747

Title: Establishing the basis for drought tolerance in maize (zea mays L.) using some secondary traits in the field
Authors: Obeng-Bio, E.
Bonsu, M.
Obeng-Antwi, K.
Akromah, R.
Keywords: Zea mays
drought tolerance
water stress
non water stress
Issue Date: Oct-2011
Publisher: African Journal of Plant Science
Citation: African Journal of Plant Science Vol. 5(12), pp. 702-709
Abstract: A field experiment was carried out from October, 2009 to February 2010, to determine the drought tolerance levels of ten maize (Zea mays L.) genotypes and to establish a basis for the development of drought tolerant hybrids. The soil used belongs to the Asuansi series (Ferric Acrisol). Six inbred lines and four varieties with different genetic backgrounds were used. A total of 80 plots were prepared in the field, from which 50% constituted the water stressed site where water was withdrawn 6 weeks after planting (6 WAP) and the remaining 50% formed the non water stressed site where the crops received water until end of grain filling. Data were collected on leaf relative water content, leaf rolling, leaf senescence, anthesis-silking interval, ears per plant and grain yield. Pairwise comparison of means of water stressed and non stressed genotypes was done, drought intensity and indices were also formulated based on grain yield. Entries 24 and 5 were identified as apparently tolerant among the inbred lines while Mamaba, among the varieties appeared as relatively tolerant. The five secondary traits mentioned above for the ranking procedure proved to be effective indicators for the selection of drought tolerant maize genotypes.
Description: African Journal of Plant Science Vol. 5(12), pp. 702-709, 27 October, 2011 Available online at http://www.academicjournals.org/AJPS ISSN 1996-0824 ©2011 Academic Journals
URI: http://hdl.handle.net/123456789/6747
Appears in Collections:College of Agric and Natural Resources

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