ABSTRACT

Nanoparticle (NP) use is becoming important alternative in different branches of science such as in agriculture, used as new source of fertiliser. In this study, it was tested iron (Fe) NP, applied as corn seed priming. In order to evaluate the early growth and development of the corn seedling a factorial experiment (5 × 3) was performed in a complete random way design with 4 replications. One of the factors were concentrations of (0, 20, 40, 80, 160 mg L⁻¹) related to iron inside and the factor with three levels were sources (Fe₃O₄ NP, Fe₃O₄ bulk and FeCl₃). 50 sterile seeds were the plot composition, which were soaked in the different Fe concentration solution containing a total volume of 200 mL for 8 h. Germination and biometric development were evaluated. Fe NPs promoted beneficial responses for seedling growth compared to other Fe sources tested here. It was realised that Fe₃O₄ NP concentration beneficial effects was lower compared to the other tested sources. Particle size had an important assignment in the bioavailability. The plant response reached in this research indicated iron NPs can consist efficiency for corn seed priming when applied between 50 and 70 mg L⁻¹ concentration based on interpolation.

抽象的

纳米颗粒（NP）的使用正在成为不同科学领域的重要替代方法，例如在农业中用作肥料的新来源。在这项研究中，测试了铁（Fe）NP用作玉米种子的底涂剂。为了评估玉米幼苗的早期生长和发育，采用完全随机方式设计并进行了4次重复试验，进行了阶乘实验（5×3）。其中一个因素是与铁内部有关的（0、20、40、80、160 mg L ^-1）浓度，三个水平的因素是铁的来源（Fe ₃ O ₄ NP，Fe ₃ O ₄体积和FeCl _3）。）。50个无菌种子是样地组合物，将其浸泡在总体积为200 mL的不同Fe浓度溶液中8小时。评估了发芽和生物特征的发展。与此处测试的其他铁源相比，铁纳米颗粒促进了幼苗生长的有益反应。已经认识到，与其他测试来源相比，Fe ₃ O ₄ NP浓度有益效果更低。粒度对生物利用度有重要影响。在这项研究中达到的植物反应表明，基于插值法，当铁NP的浓度在50至70 mg L ^-1之间时，铁NP可以构成玉米种子引发的效率。