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چکیده
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The present study is aimed at investigating the effects of zinc oxide nanoparticles (Nano-ZnO) and Zinc-Nitrate (Zn (NO3)2) on the germination characters varieties of Mung bean (Vigna radiate L.) and Vetch (Vicia sativa L.). This experiment was done as a factorial experiment in a complete randomized block design (RCBD) with three replicationsand 24 treatments including four varieties and seven Zn concentrations. The results showed that nano-ZnO, Zn (NO3)2 and variety had significant effect (P ≤ 0.01 ) on the root length and shoot length, shoot and root dry weight, shoot and root fresh weight, germination rate, germination percentage and germination index.Tand the interaction between the two factors was significant in all parameters are examined in this study. Maximum length and root dry weight correspondeds to Nano-ZnO 500 ppm concentration and Austrian Mungbean variety, while the lowest amount of root length was related to Zn (NO3)2 500 ppm concentration and Vetch. Changing procedure of shoot length was increasing with the increase in concentration of Zn (NO3)2 in Austrian and Gotondri Mungbean varieties, whereas in Fereiduni Mungbean variety and Vetch it was declined. In Fereiduni and Austria Mungbean varieties germination rate initially increased and then decreased with increasing concentration of Zn (NO3)2 up to 100 ppm. Although different concentrations of Nano-ZnO and Zn (NO3)2,incompared withto control treatment, had no significant effect on seed germination percentage in Vetch and Gotondri Mungbean variety seeds, but they caused significant increase in germination percentage other Mungbean genotypes. In general, treatment of nanoparticles was improved the germination characteristics of Gotvand Mungbean variety as compared with other varieties.
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