Physiological and biochemical responses of Tanacetum balsamita L. to the foliar application of Dobogen biostimulant, glucose and KNO3 under salinity stress

Abstract

Salinity is one of the predominant abiotic stress factors that influence the growth and productivity of plants. Salinity adversely impacts the growth responses via ionic toxicity, osmotic stress, impaired nutrients uptake, hormonal disparity, and the over-production of reactive oxygen species. To study the effects of salinity stress (0, 50, 100, and 150 mM) and foliar treatments (dH2O, 2 g L−1 Dobogen biostimulant, 2 g L−1 KNO3, and 2 g L−1d-glucose) on the growth and physiological responses of Tanacetum balsamita, a factorial experiment was conducted based on the completely randomized design at the research greenhouse of Azarbaijan Shahid Madani University, Iran. The results showed the significant interaction effects of salinity and foliar sprays on chlorophyll a, K+, Na+, Mg2+, Fe2+, Zn2+, Mn2+, and Si content, K/Na ratio, and total phenolics and flavonoids content. The highest phenolic content was acquired with 100 mM salinity and foliar spray of Dobogen and glucose, 50 mM NaCl × KNO3 application, and 50 mM salinity × no-foliar application. The highest K/Na ratio was observed in control plants and controls × KNO3 and/or Dobogen application. The greatest Si content was recorded with no-salinity × Dobogen and KNO3 applications and no-saline × no-foliar (control) plants. The independent effects of treatments influenced malondialdehyde, flavonoids, proline contents, and catalase activity. Chlorophyll b and superoxide dismutase were affected by the salinity. Total soluble solids and Ca2+ content were responsive to the foliar applications. Malondialdehyde and proline content was the highest at 150 mM salinity. Salinity adversely affected the physiological responses of costmary. However, foliar treatments partially ameliorated the salinity effect, and the results with more detailed studies would be advisable to the extension section and pioneer farmers.

Enhancing drought, heat shock, and combined stress tolerance in Myrobalan 29C rootstocks with foliar application of potassium nitrate

“…However, KNO 3 -treated rootstocks showed higher morphological parameters than non-treated ones under stress and recovery conditions. This indicates that KNO 3 application improved plant morphology under stress conditions by providing additional sources of K and N that are essential for plant growth and development [ 35 , 36 ]. Moreover, potassium and nitrogen application enhanced plant morphology by stimulating cell division, expansion, differentiation, and senescence [ 37 – 39 ].…”

Tanacetum species: Bridging empirical knowledge, phytochemistry, nutritional value, health benefits and clinical evidence

“…In the Persian pharmacopeia, the leaves and flowerheads in the form of decoction, infusion, and floral water of costmary have been used as a general tonic, antiallergic, anticancer, hepatoprotective, sedative, flatulent, and cardiotonic, whereas in Serbia, the leaves’ tea aids to ease terrible migraines and female issues during the menopause ( Hassanpouraghdam, 2009 ; Jarić et al, 2015 ; Hassanpouraghdam et al, 2022 ). Moreover, the decoction of the leaves and stems was applied topically as a rheumatism ointment, antipyretic, and a menstrual regulator ( Güneş and Özhatay, 2011 ).…”