Journal of Food, Agriculture and Environment

Influence of arbuscular mycorrhizal fungi (Glomus mosseae (T. H. Nicolson & Gerd) Gerd. &Trappe) on some physiological responses of cassava (Manihot esculenta Crantz) to drought and salinity


Olusola Jacob Oyetunji,  Samuel Kennedy Banja

Recieved Date: 2019-10-22, Accepted Date: 2019-12-06


Environmental stresses such as drought and salinity are major constraints to plant productivity. Arbuscular Mycorrhizal Fungi (AMF) over the years has been used to ameliorate several environmental conditions capable of constraining plant productivity. This present study aimed to assess the enhancement of cassava (TME 419) tolerance to both salinity and drought using arbuscular mycorrhizal fungi. A factorial experiment was set up at the screen house of the Department of Botany, University of Ibadan, where three levels of salinity (0 mM, 80 mM and 100 mM, and four levels of water regime (1 daily, 2/wk, 1/wk, and 1[2wks] and 20 g of crude inoculum of AMF and 0 g (as control) were applied to the cassava plant to monitor its physiological responses for the period of three months. Data for chlorophyll, relative water, proline and phenolic acid content was collected and analysed. The results of physiological parameters showed an increase in chlorophyll (a, b and total chlorophyll) content at higher drought (1[2wks] watering once in two weeks) level but had lowest in higher salinity level (100 mM NaCl). The accumulation of proline increased from 0.94  to 1.47 mg/g with an increase in drought but decreased from 1.38 to 1.28 mg/g with an increase in salinity while phenolic acid content decreased with an increase in drought and salinity. Physiological parameters such as chlorophyll content, proline, and phenolic content were also higher in AMF- treated plants, indicating an improvement in the level of cassava tolerance to both salinity and drought


Water regime, stress, drought, salinity, AMF

Journal: Journal of Food, Agriculture and Environment
Year: 2020
Volume: 18
Issue: 1
Category: Environment
Pages: 51-57

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