The effect of selenium and silicon nanoparticles on increasing the growth and productivity of peppermint (Mentha piperita L.) under salinity stress

Subject Areas : Developmental biology of plants and animals , development and differentiation in microorganisms

Vahidreza Jalali ^{1 *} , Mahdi Javaheri ²

1 - shirvan faculty of agriculture, university of Bojnord
2 - Department of Horticultural Science and Landscape Architecture- Ferdowsi University of Mashhad, Mashhad, Iran.

Received: 2022-02-20 Accepted : 2022-04-16 Published : 2022-05-22

Keywords: Morphological Characteristics, Essential oils, lamiaceae, nano-fertilizer, saline water,

Abstract :

Irrigation water salinity is one of the growing problems in the path of agricultural and horticultural production that researchers must determine different solutions to this problem and provide it to farmers. In this regard, silicon and selenium due to their positive role, both structurally and as cofactors of enzymes related to the metabolism of various antioxidants can play an effective role in increasing plant tolerance to salinity stress. For this purpose, a factorial experiment was conducted in a completely randomized design including four salinity levels and three fertilizer sources of silicon and selenium compounds in normal and nano size in Shirvan Faculty of Agriculture, Bojnourd University. Statistical analysis showed that the main effect of salinity stress, as expected, had a significant reducing effects on all studied traits (except essential oil). In these variables, although the main effect of fertilizer type was not statistically significant, but at different levels of silicon and selenium consumption, an increasing trend of these variables was observed, indicating the positive effect of simultaneous use of these two elements in reducing the effect of salinity. Also the main effects of salinity and fertilizer sources on leaf length and width factors, fresh and dry weight of stem, number of sub-branches, number of leaves and leaf area index were significant. In all these indicators, the application of silicon and selenium elements in nano size has always been more effective than the normal size of these elements, which should be considered as a management strategy in salinity stress conditions.