Pradeep Kumar Maharana, Uday Chand Basak
Abstract: The experiment was conducted for both morphological and non enzymatic parameters observation in two vegetatively propagated back mangrove species i.e. Excoecaria agallocha and Cerbera manghas during hardened against different concentration of NaCl under shade-net house conditions. Variation was observed during this experimental study. Both these species survived during salt stress for period of 28 days experiments. But the growth status of C. manghas was negligible or affected in comparison E. agallocha at higher concentration of salt stress. Again E. agallocha showed more content of total Phenolic, total Flavonoid, Proline and Reducing power activity at high salinity than C. manghas. While, IC50 of DPPH scavenging of E. agallocha was comparatively lower and show more scavenging power of free radicals. So, E. agallocha is more adaptive in different salinity regime than C. manghas. The baseline data may facilitate further course of research on successful re-establishment of other salt-sensitive mangrove species in the wild.
Keywords: E agallocha, C manghas, NaCl treatments, hardening, morphological growth, non-enzymatic assay