Investigation of the Effects of Metal Nanoparticles Priming on Germination Indices of Tanacetum parthenium L. (Feverfew)

Application of seed nanoprimation improves the growth and development of medicinal plants, and increases productivity and better quality of metabolites. The aim of this study was to investigate the effect of different concentrations of iron oxide and titanium dioxide nanoparticles on germination characteristics of Feverfew in a complete randomized design with ۴ replications. The treatments consisted of four concentrations of each of the nanoparticles of iron oxide and titanium dioxide (control, ۱/۱۰۰۰, ۱.۵/۱۰۰۰ and ۲/۱۰۰۰). The results showed that Feverfew seed priming with nano-iron oxide had a significant effect on radicle length, germination rate, epicotyl length and vigor index, but did not have a significant effect on germination percentage and mean germination time. Priming with nano-titanium dioxide also showed that it had a significant effect on radicle length, germination rate and vigor index and did not show a significant effect on other traits. Concentration of ۲/۱۰۰۰ of nano-iron oxide reduced the epicotyl length compared to the control by ۱۵.۶% and increased the radicle length, vigor index and germination rate compared to the control by ۶۴.۹, ۱۸.۴ and ۲۷.۷%, respectively. Furthermore, the concentration of ۱.۵/۱۰۰۰of nano-titanium dioxide increased the shoot length and vigor index compared to the control by ۴۸.۹ and ۱۹.۸%, respectively, and its concentration of ۲/۱۰۰۰ increased the germination rate compared to the control by ۳۹.۰۳%.

Keywords:

Tanacetum parthenium , Nanoparticles , Nanopriming