November 2017 Vol. 5 No.11

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Abd El-Samad HM
Taha RM

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Original Research Article

The Synergistic Effect of Zinc and Nickel with Osmotic Stress on Growth of Four Wheat Cultivars

^*1Hamdia M. Abd El-Samad, ²Hassanein A. M., ³Mostafa D. and ⁴Rania M. Taha

^{1, 3, 4}Botany and Microbiology Department, Faculty of Science, Minia University, El-Minia, Egypt
²Botany and Microbiology Department, Faculty of Science, Sohag University, Sohag, Egypt.

*Corresponding Author’s E-mail: hamdia10yahoo.com
 
Accepted October 20, 2017

Abstract

The present work was conducted to investigate the salt tolerance and strategy of synergistic effect with either 20 µM or 200 µM of Zn and Ni with either concentration of 1 µM or 100 µM on fresh, dry matter, water content and length in shoot and root of four wheat cultivars 94, Gimiza 11, Gimiza 10 and Giza 168. Fresh, dry matter, length and water content were decreased as increasing salinization levels according to their salt tolerance. Wheat cultivars can be ranked as follows cv. Sakha> cv. Gimiza 11> cv. Gimiza 10> cv. Giza 168. Cv. Sakha 94 was the higher water content and cv. Giza 168 was the lower water content. Cv. Gimiza 11 and cv. Gimiza 10 were intermediate in their salt tolerance. When treated cv. Sakha 94 with either 20 µM or 200 µM of Zn and Ni with either concentration 1 µM or 100 µM results an inhibition effect in fresh, dry matter, length and water content in shoot and root at all levels of NaCl. In cv. Giza 168, there is a slight increase in fresh and dry matter of shoot with 1 µM Ni and in root with Ni 100 µM. Whereas in cv. Gimiza 11 and cv. Gimiza 10, these treatments were significantly activated in fresh and dry matter in shoot and root especially at lower and moderate salinity levels and in shoot than in root.

Keywords: Wheat, Zn, Ni, NaCl levels