The interactive effects of cadmium and gibberellin on growth, protein content and potassium concentration in onion (Allium cepa L.) plant
2003
Ghorbanli, M, Members or Scientific Board of Azad Islamic University-NorTh Tehran, | Majd, A, Members or Scientific Board of Azad Islamic University-NorTh Tehran,
In this investigation, the main effects of cadmium (Cd(NO 3 ) 2 , 4H 2 O) and interaction of cadmium and gibberellin (GA 3 ) on root and shoot growth, proteins and potassium concentration in onion (Allium cepa L. cv. Red Azarshahr) plants were studied. Plants were grown for 10 days in Hoagland nutrient solution containing variable Cd 2+ concentrations (0, 0.1, 0.2, 0.4 mM) and GA 3 (0, 0.03 mM). The ANOVA results showed that, with increasing cadmium concentration in nutrient solution, significantly (p0.01) root and shoot growth, protein content of shoot and potassium concentration decreased. The addition of gibberellin significantly reduced the toxic effects of cadmium on onion.
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