Hamideh Azad; Baratali Fakheri; nafiseh mahdinezhad; Qhasem Parmoon
Abstract
In order to study the effect of foliar application of nano iron chelated on antioxidant enzymes activity and yield of chamomile genotypes under drought stress condition, a factorial experiment based on randomized complete block design with three replications was conducted at the research greenhouse of ...
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In order to study the effect of foliar application of nano iron chelated on antioxidant enzymes activity and yield of chamomile genotypes under drought stress condition, a factorial experiment based on randomized complete block design with three replications was conducted at the research greenhouse of the University of Zabol in 2014. Experimental treatments included drought stress (at 2 levels of control or 90% of field capacity and 70% of field capacity) and nano iron chelate (at 2 levels of control and 2 mg/l) and genotypes, including (Isfahan, Mashhad, Shiraz, Kerman, Arak and Safashahr). The results showed that the drought stress according to the genotype had different effects on antioxidant enzyme activities so that the enzymes activities increased in some of the genotypes and decreased in some of them. Water stress caused to increasing in catalase activity in genotypes of Arak, Kerman and Safashahr, peroxidase and increasing in ascrobats peroxidase activity in genotypes of Isfahan, Mashhad, Arak and Kerman, and increasing in polyphenol oxidase and guaiacol peroxidase in genotypes of Shiraz and Safashahr.The highest the economic yield were observed in Esfahan genotype. Generally, it could be said that stress causes damaging effects on the plant and using of nano-chelate can increase the plant̕ s tolerance to stress and application of Isfahan and Mashhad genotypes are suitable for stress conditions.