Effect of mycorrhiza fungi on growth of coriander under lead stress

To study the effect of Mycorrhiza on the growth of Coriander (Coriandrum sativum) under lead stress conditions to a factorial experiment based on completely randomized design with four replications was conducted in research greenhouse of Mohaghegh Ardabili University at 2015-2016. Experimental factors included soil contamination by lead (0, 500, 1000, 1500 ppm) and inoculation with mycorrhiza. During this experiment traits such as plant height, plant dry and fresh weight, leaf number, diameter stem, and root dry weight were measured. Results showed that the interaction between stress and the use of lead and mycorrhiza has been significant traits. The highest Pb treatment (1500 ppm) had decreased 57, 50, 20, 41, 15, 42, 25 % shoot weight, stem diameter, root diameter, root length, Plant height, leaf area and root dry weight and control was highest in all factors compare other treatments. The Pb concentration had not effect on root weight and stem dry weight. Mycorrhiza inoculation had significant effect on coriander plant characteristic except in root weight and stem diameter. The interaction between Lead contamination and mycorrhiza inoculation had significant effect on all characteristic expect of root weight, stem diameter and dry stem diameter.

Keywords:

coriander , lead stress , mycorrhiza