Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide
Nanofertilizers are increasingly explored for sustainable micronutrient delivery in agriculture. Pre-treating seeds with nanofertilizers prior to planting (i.e., seed priming) reduces concerns about nanoparticle (NP) fertilizer non-target dispersion; however, priming formulations and concentrations...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/2/307 |
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| author | Michel Esper Neto David W. Britt Lorena Moreira Lara Anthony Cartwright Rayssa Fernanda dos Santos Tadeu Takeyoshi Inoue Marcelo Augusto Batista |
| author_facet | Michel Esper Neto David W. Britt Lorena Moreira Lara Anthony Cartwright Rayssa Fernanda dos Santos Tadeu Takeyoshi Inoue Marcelo Augusto Batista |
| author_sort | Michel Esper Neto |
| collection | DOAJ |
| description | Nanofertilizers are increasingly explored for sustainable micronutrient delivery in agriculture. Pre-treating seeds with nanofertilizers prior to planting (i.e., seed priming) reduces concerns about nanoparticle (NP) fertilizer non-target dispersion; however, priming formulations and concentrations must be carefully selected to avoid germination inhibition and toxicity. Here we investigate changes in corn seed germination and seedling development after seed priming with ZnO NPs, ZnO bulk and ZnCl<sub>2</sub>. To evaluate the effects sterile seeds were immersed in priming solutions of 0, 20, 40, 80, 160 mg L<sup>−1</sup> Zn for the three Zn sources. Following an 8 h priming the seeds were evaluated for germination and vigor for 5 days on germination paper. Root and shoot lengths were measured as well as fresh and dry biomass. Compared to the control, the ZnO NP and ZnCl<sub>2</sub> seed priming promoted beneficial effects. ZnO NP seed-priming exhibited a concentration dependent profile in improving seedling growth, with greatest benefit around 80 mg L<sup>−1</sup>, providing 17%, 25% and 12% higher values than control for germination, root length, and dry biomass production, respectively. In contrast, seeds primed with bulk ZnO did not differ from the control. These findings support NP-seed priming as an alternative to delivery of essential micronutrients, such as zinc, to corn seedlings. |
| first_indexed | 2024-12-16T17:58:28Z |
| format | Article |
| id | doaj.art-ac3357325b424295a32a2293c6cf40a4 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-12-16T17:58:28Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-ac3357325b424295a32a2293c6cf40a42022-12-21T22:22:07ZengMDPI AGAgronomy2073-43952020-02-0110230710.3390/agronomy10020307agronomy10020307Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc OxideMichel Esper Neto0David W. Britt1Lorena Moreira Lara2Anthony Cartwright3Rayssa Fernanda dos Santos4Tadeu Takeyoshi Inoue5Marcelo Augusto Batista6Agronomy Department, Maringá State University (UEM), Maringá, PR 87020-900 BrazilBiological Engineering Department, Utah State University (USU), Logan 84322-4105, UT, USACrop Department, Viçosa Federal University (UFV), Peter Henry Rolfs Avenue, Viçosa, MG 36570-900, BrazilBiological Engineering Department, Utah State University (USU), Logan 84322-4105, UT, USAAgronomy Department, Maringá State University (UEM), Maringá, PR 87020-900 BrazilAgronomy Department, Maringá State University (UEM), Maringá, PR 87020-900 BrazilAgronomy Department, Maringá State University (UEM), Maringá, PR 87020-900 BrazilNanofertilizers are increasingly explored for sustainable micronutrient delivery in agriculture. Pre-treating seeds with nanofertilizers prior to planting (i.e., seed priming) reduces concerns about nanoparticle (NP) fertilizer non-target dispersion; however, priming formulations and concentrations must be carefully selected to avoid germination inhibition and toxicity. Here we investigate changes in corn seed germination and seedling development after seed priming with ZnO NPs, ZnO bulk and ZnCl<sub>2</sub>. To evaluate the effects sterile seeds were immersed in priming solutions of 0, 20, 40, 80, 160 mg L<sup>−1</sup> Zn for the three Zn sources. Following an 8 h priming the seeds were evaluated for germination and vigor for 5 days on germination paper. Root and shoot lengths were measured as well as fresh and dry biomass. Compared to the control, the ZnO NP and ZnCl<sub>2</sub> seed priming promoted beneficial effects. ZnO NP seed-priming exhibited a concentration dependent profile in improving seedling growth, with greatest benefit around 80 mg L<sup>−1</sup>, providing 17%, 25% and 12% higher values than control for germination, root length, and dry biomass production, respectively. In contrast, seeds primed with bulk ZnO did not differ from the control. These findings support NP-seed priming as an alternative to delivery of essential micronutrients, such as zinc, to corn seedlings.https://www.mdpi.com/2073-4395/10/2/307nano-fertilizerseed-primingphytotoxicitycharacterizationxrdtem |
| spellingShingle | Michel Esper Neto David W. Britt Lorena Moreira Lara Anthony Cartwright Rayssa Fernanda dos Santos Tadeu Takeyoshi Inoue Marcelo Augusto Batista Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide Agronomy nano-fertilizer seed-priming phytotoxicity characterization xrd tem |
| title | Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide |
| title_full | Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide |
| title_fullStr | Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide |
| title_full_unstemmed | Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide |
| title_short | Initial Development of Corn Seedlings after Seed Priming with Nanoscale Synthetic Zinc Oxide |
| title_sort | initial development of corn seedlings after seed priming with nanoscale synthetic zinc oxide |
| topic | nano-fertilizer seed-priming phytotoxicity characterization xrd tem |
| url | https://www.mdpi.com/2073-4395/10/2/307 |
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