The nanoparticles have the potential ability of the passing cell membrane because of their size in nano meters. The SiO2 nanoparticles are one of the major and frequently used engineered oxide nanoparticles. In present investigation, the potential effect of SiO2 (10-20 nm) nanoparticles on maize seed viability were studied. We observed quick result of seed viability as well as increases in seed viability percentage in presence of Gibberellic acid (GA3) encapsulated silica nanoparticles. Three concentrations (0.5, 0.2 and 0.1%) of tetrazolium salts were used for staining of living tissue. The seeds preconditioned in 150 ppm GA3 encapsulated nanosilica and tested in 0.5% tetrazolium salt gave maximum viable seeds which were due to the increased availability of GA3 and showed quick staining over 0.2% and 0.1% concentration. Among the varieties, var. Navin imbibed in 150 ppm gibberellic acid encapsulated nanosilica showed a higher value of viable seed under 0.5% tetrazolium solution due to better availability of GA3. Gibberellic acid enhances metabolic activity of seed by secretion of α-amylase enzyme which is important for quick staining of embryonic tissue.

中文翻译：

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GA3封装的纳米二氧化硅对玉米种子活力的影响

由于纳米颗粒的大小，纳米颗粒具有通过细胞膜的潜在能力。SiO2 纳米粒子是主要和常用的工程氧化物纳米粒子之一。在目前的调查中，研究了 SiO2 (10-20 nm) 纳米粒子对玉米种子活力的潜在影响。我们观察到在赤霉酸 (GA3) 包封的二氧化硅纳米粒子存在下种子活力的快速结果以及种子活力百分比的增加。三种浓度（0.5、0.2 和 0.1%）的四唑盐用于活组织染色。在 150 ppm GA3 封装纳米二氧化硅中预处理并在 0.5% 四唑盐中测试的种子产生最大存活种子，这是由于 GA3 的可用性增加，并且在 0.2% 和 0.1% 浓度下显示快速染色。在品种中，var。吸收在 150 ppm 赤霉酸封装的纳米二氧化硅中的 Navin 在 0.5% 四唑鎓溶液下显示出更高的可存活种子值，因为 GA3 的可用性更高。赤霉酸通过分泌对胚胎组织快速染色很重要的α-淀粉酶来增强种子的代谢活性。