TITLE:
Zinc Sulphate and Nano-Zinc Oxide Effects on Some Physiological Parameters of Rosmarinus officinalis
AUTHORS:
Sasan Mohsenzadeh, Seyedeh Sara Moosavian
KEYWORDS:
Nanoparticle, Physiological Response, Rosemary, Zinc
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.8 No.11,
October
12,
2017
ABSTRACT: In the present study, the effects of foliar application of zinc sulphate and nano-zinc oxide
on physiological indices (chlorophyll and carotenoids content, antioxidant
activity, total phenolic content, proline, lipid peroxidation and sugar) of
rosemary were evaluated. Greenhouse cultivation experiment in a randomized
complete block with three levels of foliar zinc and three levels of foliar nano-zinc
oxide and control treatment, each with three replications, was carried out. The results showed that low concentrations of zinc and
nano-zinc oxide significantly increased chlorophyll and carotenoid compared to
the control. Whereas with the high concentration of nano-zinc oxide,
chlorophyll and carotenoid decreased compared to the control. Antioxidant
enzymes activity increased with zinc and nano-zinc oxide compared to control
plants. In addition, proline, membrane lipid peroxidation, soluble sugar and
phenolic compounds increased in the treated plants. Proline and plant
antioxidant enzymes to scavenge free radicals have increased. Two levels of
zinc increased the total phenolic compounds of rosemary leaves significantly
but nano-zinc oxide did not show a significant difference compared to the
control.