The effect of different concentrations of Nano calcium and Nano silicium spraying before harvest on some morphological and physiological traits Dianthus caryophyllus and Chrysanthemum

Chrysanthemums with scientific name, Chrysanthemum a plant of the Asteraceae/ Compositae family and spray carnation with scientific name, Dianthus Caryophyllus of the Caryophyllaceae in Iran and the world of high economic value. Flower stem solidity, importance in longevity and marketing goals and improve their quality. Pre harvest spraying Nano Ca and Nano Si have a important role in Flower stem solidity. In this research, Nano Ca and Nano Si, each with tree levels of 10,20 and 40 mM and the pot without spraying was considered as control. Pots, tree times in the week of spraying was conducted on the same basis. quantitative and qualitative traits such as flowers longevity on plant, flower fresh weight and dry weight, phenyl alanin amonialyase and superoxid dismutase activity, leaf si and ca, were evaluated. The results showed all of evaluated traits at 1% statistical level had significant effect.