Faculty of Biology, University of Latvia
EEB
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Env Exp Biol (2012) 10: 113–116
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Environmental and
Experimental
Biology

Env Exp Biol (2012) 10: 113–116

Original Article

Effects of salicylic acid levels and irrigation intervals on growth and yield of coriander (Coriandrum sativum) in field conditions

Sadra Hesami1, Esmaeil Nabizadeh2, Abdolrahman Rahimi3, Asad Rokhzadi3*
1Former M.Sc. Student of Agronomy, Mahabad Branch, Islamic Azad University, Mahabad, Iran
2Department of Agronomy & Plant Breeding, Mahabad Branch, Islamic Azad University, Mahabad, Iran
3Department of Agronomy & Plant Breeding, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran3
*Corresponding author, E-mail: asadrokh@yahoo.com

Abstract

Salicylic acid (SA) is known as a signaling molecule that is involved in plant resistance and tolerance to biotic and abiotic stresses. This study was carried out to evaluate the effects of salicylic acid application and irrigation intervals on growth and yield of coriander using a split-plot layout in a randomised complete block design with three replications. Two levels of irrigation including irrigation every 4th day (a1) and irrigation every 8th day (a2) were compared in main plots. Four levels of salicylic (SA) were assigned in sub-plots at 0 (distilled water), 0.01, 0.1 and 1 mM SA (as b1, b2, b3 and b4, respectively). Results showed that the reduction of irrigation interval from 8 to 4 days statistically improved plant height, seed yield and plant biomass. Application of SA significantly affected seed yield and plant biomass. The highest rate of seed yield was obtained at 0.01 mM SA and the other levels of SA were placed in a class. The interaction effect of SA × irrigation on seed yield was significant. The greatest amount of seed yield was produced by a1b2 treatment (every four days irrigation with 0.01 mM application of SA).

Key words: coriander, Coriandrum sativum, irrigation, salicylic acid, yield.

 
Env Exp Biol (2012) 10: 113–116
 DOI: http://doi.org/10.22364/eeb
EEB

Editor-in-Chief
Prof. Gederts Ievinsh



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