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Potentials of Arbuscular Mycorrhiza Fungus in Tolerating Drought in Maize (<i>Zea mays</i>L.)

American Journal of Plant Sciences 2014年第6期5卷 779-786页

作者： Odunayo Joseph Olawuyi Adegboyega Christopher Odebode Busayo Joshua Babalola Ezekiel Taiwo Afolayan chidinma pauline onu Biology Department Federal College of Education Abeokuta Abeokuta Nigeria Department of Biosciences and Biotechnology Babcock University Ilisan-Remo Lagos Nigeria Department of Botany University of Ibadan Ibadan Nigeria

Maize is one of the most important cereal crops widely grown for food, feed, and fodder/forage throughout the world in a range of agroecological environments. Drought stress continues to haunt the maize farmers across south western part of Nigeria, thereby leading to low quantity of this essential staple food in the market. Efforts have been made to enhance the growths and yields in maize by investigating the influence of Arbuscular mycorrhizal fungus (Gigaspora gigantea) on the tolerance of maize to drought stress. The experiment was conducted in the teaching and research farm of Babcock University, Ilishan-Remo, Nigeria. The experiment was laid out in a complete randomized design with four replicates. Data were collected on eight morphological drought related characters. The objective of this research work was to evaluate the morpho-agronomic responses and potential of Gigaspora gigantea colonization in maize drought tolerance, and also to select parents in maize breeding for improved yield related components. The combined analysis of variance showed significant (P 0.05) treatment effect on majority of the traits evaluated. The treatments of Arbuscular Mycorrhiza Fungus (AMF) produced significant higher growth related traits suggesting that AMF treated plants had higher potential in influencing the tolerance to drought. Accession 3 was considered best for most of the traits studied and can be selected as parents in maize breeding for yield related components.

关键词： Maize Gigaspora gigantea Drought Stress Tolerance Growth Yields

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