The Effects of Micro Elements of Iron and Zinc on Morphological Characteristics of Mycorrhized Barley (Hordeum vulgare L.)

Subject Areas : Journal of Crop Ecophysiology

Shahab Khaghani ¹ ( Department of Agronomy and Plant Breeding, Arak Branch, Islamic Azad University, Arak, Iran )

Received: 2015-02-08 Accepted : 2017-03-09 Published : 2016-06-21

Keywords: barley, Zinc, micronutrients, Iron, Glomus intraradices,

Abstract :

Deficiency of micro-nutrients in human diet may cause health problems. To increase the amount of these elements in the edible parts of the plants would eliminate the incidence of these health problems. Thus, the effects of iron and zinc on seed yield and morphological characteristics of mycorrhized barley (cv. Bahman) root was studied in Karaj, Iran, during growing season of 2013-14. It was carried out in afactorial experiment based on randomized complete block design with three replications. Treatments consisted two levels of mycorrhiza, non-inoculation (M0) and inoculation with 10 kg/ha of Glomus intraradices (M1), and three levels of iron from Fe-EDDHA (Sequestrene138) as control (F0), 2.5 kg/ha (F1) and 5kg/ha (F2) and three levels of zinc as zinc sulphate (ZnSO4) as control (Z0), 25 kg/ha (Z1) and 50 kg/ha (Z2). The results showed that application of mycorrhiza increased parameters like total root length (TRL), root length density (RLD), specific root length (SLR), root colonization percentage and grain yield by 900.6 cm, 0.52 cm/cm3, 1738.1 cm/g, 5.41% and 1ton/ha respectively. Mean comparisons also revealed that using iron, mycorrhiza and without Zn application increased levels of root dry weight (RDW) by 2.81 g.

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