The effect of Nano silver foliar application on the physico-biochemical responses of French parsley (Tagetes patula L.) under salinity stress conditions

Document Type : Full Paper


1 Department of Horticulture, Faculty of Agriculture, Lorestan university, Khorramabad, Iran

2 Department of Plant medicine, Faculty of Agriculture, Saravan university, Saravan, Iran


Salinity is one of the main environmental stresses that affects the establishment of seedlings and the performance of green space plants. The application of silver nanoparticles in abiotic stresses and in various ways improves the tolerance of plants against stresses. For this purpose, in order to investigate the effect of silver nanoparticles on flower characteristics and some physico-biochemical characteristics of French parsley under salinity stress conditions, a factorial experiment was conducted in the form of a completely randomized design with 4 replications. The first factor included salinity treatment at four levels (0, 25, 50 and 100 mM) and the second factor was the foliar application of silver nanoparticles at 4 levels (0, 10, 50 and 100 ppm). The results of the investigation showed that the use of nanosilver in concentrations of 10 and 50 ppm significantly improved the evaluated parameters under stress conditions. The above concentrations, in the condition without salinity (0 mM), the maximum quantum efficiency of photosystem II (0.820), the relative water content (86.40 %) and the least ion leakage (30.36 %) and increased the ornamental characteristics of parsley including the number of flowers (by 27.27%), flower diameter (by 10.27%) and flower life (5.75 days) under salt stress conditions became. The present results showed that parsley flower was sensitive to extreme salinity (100 mM) and was unable to produce large flowers under extreme salinity conditions, and other plant characteristics were also affected at this salinity level.


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Articles in Press, Accepted Manuscript
Available Online from 09 June 2024
  • Receive Date: 17 November 2023
  • Revise Date: 20 January 2024
  • Accept Date: 16 February 2024