Shenzhou Space Biology Science and Technology Corporation, Ltd, Beijing, China.
IET Nanobiotechnol. 2021 Oct;15(8):674-679. doi: 10.1049/nbt2.12064. Epub 2021 Jul 29.
Neutral nanoparticles (NPs) of copper (Cu), iron (Fe) and zinc (Zn) are widely used in agriculture. Polymer seed coating with different metal NPs may supply important nutrients during plant growth and consequently enhances yields. In this research, three kinds of metal NPs were conducted to optimize the optimal concentration through seed coating for improving plant growth and productivity of tomato. Seeds of Venice tomato cultivars were coated by polymer-based mixture with different concentrations of Cu, Fe and Zn NPs, respectively. At harvest, seed germination, internode length, average weight of single fruit, yield and fruit shape index were measured. When compared with control, the internode length increased by 7.3% and 6.8% with low concentration of Fe NPs and Zn NPs, respectively. The average weight per fruit improved over control by 10.2% and 7.5% with low concentration of Cu NPs and Fe NPs, respectively. The yield with low concentration of Cu NPs and Fe NPs increased the yield by 10.7% and 6.5% compared with control. These results indicated that polymer seed coating with low concentration of metal NPs may promote the uptake of some nutrient and thus improve the productivity of tomato.
中性纳米粒子（NPs）的铜（Cu），铁（Fe）和锌（Zn）被广泛应用于农业。用不同的金属 NPs 对聚合物种子进行涂层处理可能会在植物生长过程中提供重要的营养物质，从而提高产量。在这项研究中，通过种子涂层处理，对三种金属 NPs 进行了优化，以确定提高番茄生长和生产力的最佳浓度。用不同浓度的 Cu、Fe 和 Zn NPs 的聚合物基混合物对威尼斯番茄品种的种子进行了涂层处理。收获时，测量了种子发芽率、节间长度、单果平均重量、产量和果实形状指数。与对照相比，低浓度的 Fe NPs 和 Zn NPs 使节间长度分别增加了 7.3%和 6.8%。低浓度的 Cu NPs 和 Fe NPs 使单果平均重量比对照分别提高了 10.2%和 7.5%。低浓度的 Cu NPs 和 Fe NPs 的产量与对照相比分别提高了 10.7%和 6.5%。这些结果表明，用低浓度金属 NPs 对聚合物种子进行涂层处理可能会促进某些营养物质的吸收，从而提高番茄的生产力。
