Urmia University Forest Research and Development 2476-3551 7 4 2022 02 20 The effect of carbon nanotubes on height growth, leaf and soil nutrient uptake in Iranian oak seedlings in greenhouse environment The effect of carbon nanotubes on height growth, leaf and soil nutrient uptake in Iranian oak seedlings in greenhouse environment 561 575 121136 10.30466/jfrd.2022.121136 FA Farhad Ghasemi Aghbash Assistant Professor, Department of Nature Engineering, Faculty of Natural Resource and Environment, ‎Malayer University, Malayer, I. R. Iran‎ Iman Pazhouhan Assistant Prof., Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University 0000-0002-5605-3107 Zahra Rostami Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University Journal Article 2020 08 24 Despite the widespread and growing use of nanotechnology, especially in plant science, many of the effects and functions of nanoparticles on plant mechanisms are still unknown. The present study was conducted to investigate the effect of carbon nanotube treatments, calcium chloride 1% and potassium nitrate 1% on leaf nutrients and height growth of Iranian oak seedlings. This experiment was performed in a completely randomized with three replications in the research greenhouse of Malayer University. For this purpose, the seeds were primed in the first treatment included five levels of concentration of carbon nanotubes (10, 25, 50, 75, 100 mg/l) for six hours, the second treatment of calcium chloride 1% for 48 hours and the third treatment Potassium nitrate for 24 hours and control treatment (non-priming). At the end of a six-month period, the growth rate and nutrient levels of sodium, potassium, calcium and phosphorus, and carbon in the leaves and soil under the seedlings were measured. According to the results, the highest concentration of soil nutrients was observed in low concentrations of nanoparticles. Findings showed that in compared to the other treatments, the greatest effect of potassium nitrate 1% was in increasing soil carbon. Also, the Findings showed that the amount of nutrients in the leaves decreased with increasing concentration of carbon nanotubes. According to the results, the use of carbon nanotubes with a concentration of 50 mg/l has good conditions in increasing the concentration of nutrients in the leaves. Also, the use of concentrations of 50 and 75 mg/l of carbon nanotubes increases the height growth of oak seedlings‎. Despite the widespread and growing use of nanotechnology, especially in plant science, many of the effects and functions of nanoparticles on plant mechanisms are still unknown. The present study was conducted to investigate the effect of carbon nanotube treatments, calcium chloride 1% and potassium nitrate 1% on leaf nutrients and height growth of Iranian oak seedlings. This experiment was performed in a completely randomized with three replications in the research greenhouse of Malayer University. For this purpose, the seeds were primed in the first treatment included five levels of concentration of carbon nanotubes (10, 25, 50, 75, 100 mg/l) for six hours, the second treatment of calcium chloride 1% for 48 hours and the third treatment Potassium nitrate for 24 hours and control treatment (non-priming). At the end of a six-month period, the growth rate and nutrient levels of sodium, potassium, calcium and phosphorus, and carbon in the leaves and soil under the seedlings were measured. According to the results, the highest concentration of soil nutrients was observed in low concentrations of nanoparticles. Findings showed that in compared to the other treatments, the greatest effect of potassium nitrate 1% was in increasing soil carbon. Also, the Findings showed that the amount of nutrients in the leaves decreased with increasing concentration of carbon nanotubes. According to the results, the use of carbon nanotubes with a concentration of 50 mg/l has good conditions in increasing the concentration of nutrients in the leaves. Also, the use of concentrations of 50 and 75 mg/l of carbon nanotubes increases the height growth of oak seedlings‎. https://jfrd.urmia.ac.ir/article_121136_ac438415c671bcaaef39a0b928ac9d2d.pdf