Mitigation of Salt Stress in Camelina sativa by 24-epibrassinolide and/or Salicylic acid Treatments

Abstract

Abstract This research was conducted to determine the effects of various hormones EbR and SA applied under salt stress on the growth and development of the camelina plant (Camelina sativa) under greenhouse conditions. Various parameters were evaluated in this study, including FW, DW, PWC, RWC, MP, Ch a, Ch b and carotenoids. The results revealed that salt stress significantly reduced plant growth and productivity of all genotypes in most parameters. The addition of SA and EbR + SA improved the performance of RWC and carotenoid parameters under salt stress, while the addition of EbR increased RWC alone. The highest FW (5.49 g) and DW (1.31 g) were obtained for the NaCl + EbR + SA treatment group after the control group. The highest values of MP were obtained for the NaCl treatment group in Arslanbey genotype and for the NaCl + EbR + SA treatment group for the other two genotypes. Furthermore, the highest increase in Ch a, Ch b and carotenoid contents was obtained for PI-650142 genotype. However, more research is required to fully understand the mechanisms and effects of these compounds when applied together. Overall, SA and EbR have promising potential for improving the productivity of crops grown under salt-stress conditions. Further studies should be performed by considering the sensitivity of genotypes with low salt tolerance.