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Title
Mollifying Salt Depression on Anethum graveolens L. by the Foliar Prescription of Nano-Zn, KNO3, Methanol, and Graphene Oxide
Type of Research Article
Keywords
Anethum graveolens · Nutrient content · Essential oil · Proline content
Abstract
The aim of the study was to assay the salinity impacts on Anethum graveolens by the foliar application of nano-Zn, KNO3, methanol, and graphene oxide in hope to mitigate the stressor side effects. NaCl salinity (0, 50, and 100 mM) and foliar spray with graphene oxide, methanol, KNO3, and nano-zinc were examined to evaluate the growth and physiological responses, antioxidant enzyme activity, and the essential oil content and constituents of Anethum graveolens. The results revealed that salinity × foliar combinations significantly affected N, P, and Na content of plants. The top recorded data for K+/ Na+, catalase activity, and chlorophyll a content belonged to control plants. Control and 50-mM salinity treatments attained the highest aerial part dry weights, total chlorophylls, and essential oil yield. One hundred-millimolar salinity induced the greatest malondialdehyde, H2O2, and proline content. Foliar treatment of methanol, KNO3, and nano-zinc added up K+ content. GC/MS analysis revealed the occurrence of 21 constituents in the oil. Dill-apiol (24.06–88.5%) was the major constituent; NaCl100mM× methanol treatment attained the highest dill-apiol content. In conclusion, Anethum graveolens was tolerable to 50-mM salinity without remarkable loss in the growth characteristics and yield. Moreover, foliar treatment of KNO3 and nano-zinc partially ameliorated the adverse side effects of salinity.
Researchers Mohammad Bagher Hassanpouraghdam (First Researcher)، lamia Vojodimehrabani (Second Researcher)، Mohammad Reza Rahvar (Third Researcher)، Leila Khoshmaram (Fourth Researcher)، Amir Soltanbeigi (Fifth Researcher)