Effects of biogenic zinc oxide nanoparticles on seed germination and seedling vigor of maize (Zea mays)
2020
Itroutwar, Prerna Dilip | Kasivelu, Govindaraju | Raguraman, Vasantharaja | Malaichamy, Kannan | Sevathapandian, Subramanian Kizhaeral
In the present study, biogenic synthesized zinc oxide (ZnO) nanoparticles using as a nano-priming agent for enhancing seed germination and seedling growth parameters of maize (Zea mays) were determined. The results of the present study carried out in paper roll towel method shown that ZnO nano-primed seeds @ 100 mg/L showed highest improved seed germination rate and seedling parameters viz., shoot length (13.0 cm), shoot width (3.4 mm); root length (20.7 cm), root width (1.0 mm); leaf length (60 mm), width (16.0 mm); vigor index (2931.9) and dry matter production (5.33 gm) than ionic control (zinc acetate) and normal control (hydro-priming). In addition, HR-SEM analysis reveals the absorption of ZnO nanoparticles on the endosperm regions of seed. Taken together, the aforementioned results also showed that the use of ZnO nanoparticles could alleviate zinc deficiency and improved the agronomical characters of maize seedling.
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