The effect of mulch and fertilizers on broccoli (Brassica oleracea L. Var. Italica) oxidants and antioxidants

Ali Husain Jasim and Wassan M. Abu Al-Timmen

Net Journal of Agricultural Science
Published: November 19 2014
Volume 2, Issue 4
Pages 124-130

Abstract

Factorial field experiments was conducted during 2012/2013 growth season to study the effect of soil mulch (mulch and without mulch) and some fertilizers (control, sulfur, organic and high potash fertilizer) on H2O2 content and the activity of catalase (CAT), superoxide dismutase (SOD), and glutathione (GSH) oxidative enzymes of broccoli leaves and flowers. The results showed that using mulch, fertilizer treatment and the interaction between mulch and high potash treatment led to a significant increase in CAT and SOD activity. Furthermore, high potash and sulfur supplementation caused a significant increase in broccoli antioxidants both in leaves and flowers respectively. We conclude that mulch and high potash treatment led to increase plant tolerance to salt stress by increasing antioxidant mechanisms.

Keywords: Mulch, broccoli, oxidants, antioxidants.

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