Effects of exogenously applied salicylic acid on the induction of multiple stress tolerance and mineral nutrition in maize ( Zea mays L.)

Authors: Gunes, Aydin; Inal, Ali; Alpaslan, Mehmet; Cicek, Nuray; Guneri, Esra; Eraslan, Figen; Guzelordu, Tutku

Source: Archives of Agronomy and Soil Science, Volume 51, Number 6, Number 6/December 2005 , pp. 687-695(9)

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Abstract:

It has been proposed that salicylic acid (SA) acts as an endogenous signal molecule responsible for inducing environmental stress tolerance in plants. In this study, the effects of seed soaked (1.0 mM for 24 h) and soil incorporated (0.1 mM and 0.5 mM) salicylic acid (SA) supply on growth and mineral concentrations of maize ( Zea mays L., Hamidiye F 1 ) grown under either salt, boron toxicity or drought-stressed conditions were investigated. Exogenously applied SA either with seed soaked (SS) or soil incorporated (SI) increased plant growth significantly in all the stresses conditions. Salicylic acid inhibited Na and Cl accumulation in saline conditions, and 0.5 mM of soil incorporated SA decreased B significantly in boron toxicity treatment. Except in drought condition, SA treatments stimulated N accumulation in plants. And P, K, Mg and Mn concentrations of SA received plants were increased in the stress conditions. These results suggest that SA regulates the response of plants to the environmental stresses and could be used as a plant growth regulator to improve plant growth and stimulate mineral nutrient concentrations under stress conditions.

Keywords: Salicylic acid; boron toxicity; salinity; drought; maize; mineral nutrition

Document Type: Research article

DOI: http://dx.doi.org/10.1080/03650340500336075

Affiliations: 1: Department of Soil Science and Plant Nutrition, Faculty of Agriculture, University of Ankara, Ankara, Turkey

Publication date: 2005-12-01

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