PJB-2020-370
Influence of biosynthesized ZnO nanoparticles on seed germination and seedling growth of Zea mays
Weidong Huang
Abstract
Bamboo leaf extract was used to biosynthesize ZnO nanoparticles, and the optimal synthesis condition was ascertained. The influence of zinc acetate, bulk ZnO, and ZnO nanoparticles on seed germination and seedling growth of zea mays was also determined. The results showed that the three tested materials did not exhibit lethal damage to Zea mays, and there existed a relationship of concentration dependent. The germination rate was obviously enhanced by zinc acetate and ZnO nanoparticles at 800 and 200 μg/mL. All the tested materials at any concentration increased number of root. In addition, seedling growth indexes including shoot length, root length, shoot dry weight, and root dry weight were positively affected by zinc containing materials. Comparing with zinc acetate and bulk ZnO, ZnO nanoparticles exhibited less toxicity to Zea mays especially at higher concentration. The results would provide a reference for screening efficient and economic micronutrient for zea mays growth.
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