Nejatzadeh Fatemeh
Department of Horticulture, Khoy Branch, Islamic Azad University, Khoy, Iran.
Heliyon. 2021 Feb 12;7(2):e05981. doi: 10.1016/j.heliyon.2021.e05981. eCollection 2021 Feb.
This study to evaluate the effects of silver nanoparticles on the salinity tolerance of ( L.). The study done based on factorial experiment using a completely randomized design, in a laboratory and greenhouse in Islamic Azad University of Khoy, Iran in 2015. Silver nanoparticles concentrations were 0, 40, 60, and 80 ppm and salt concentrations 0, 30, 60, 90, and 120 mM l. Germination seeds of were counted twice a day for 14 days at laboratory. Then seedling transferred to the greenhouse and their growth continued. Traits measured were seedling weight, seedling lengths, germination rates, germination averages, germination potentials, and percentages of germination. Results showed that the silver nanoparticles improved significantly germination average; plants shoot length and increased plants resistance to salinity. Results showed that a significant reduction in germination percent and seedling growth due to the salinity stress while significantly increased with nano-particles application. In control treatment (without silver nanoparticle) and low level of salinity (0 mM l) increased seed germination percentage, while the high levels of salinity inhibited the seed germination significantly. The results showed that the effect of silver nanoparticles was significant on germination percentage in ≤ 0.05. Overall, application of silver nanoparticles was beneficial in improving salinity tolerance in the seedling and its application may stimulate the differences defense mechanisms of plants against salt toxicity.
本研究旨在评估银纳米颗粒对（物种名称未给出）耐盐性的影响。该研究于2015年在伊朗霍伊伊斯兰阿扎德大学的实验室和温室中，基于析因试验采用完全随机设计进行。银纳米颗粒浓度分别为0、40、60和80 ppm，盐浓度分别为0、30、60、90和120 mM l。在实验室中，每天对（物种名称未给出）的发芽种子计数两次，持续14天。然后将幼苗转移到温室中继续生长。测量的性状包括幼苗重量、幼苗长度、发芽率、发芽平均值、发芽势和发芽百分比。结果表明，银纳米颗粒显著提高了发芽平均值；增加了植株地上部分长度，并提高了植株对盐分的抗性。结果表明，盐分胁迫导致发芽率和幼苗生长显著降低，而施用纳米颗粒后显著增加。在对照处理（不添加银纳米颗粒）和低盐度水平（0 mM l）下，种子发芽率增加，而高盐度水平显著抑制种子发芽。结果表明，银纳米颗粒对发芽率的影响在P≤0.05时显著。总体而言，施用银纳米颗粒有利于提高（物种名称未给出）幼苗的耐盐性，其应用可能会激发植物对盐毒性的不同防御机制。
