“…The reduction in dry matter (Figures 1A and B) may be related to the detrimental effects of the salt stress, since high concentrations of sodium salts negatively Table 2 -Summary of the analysis of variance for leaf dry matter (LDM), stem dry matter (STDM), root dry matter (RDM), shoot dry matter (SDM), total dry matter (TDM), and the root/shoot ratio (R/S) in soursop seedlings irrigated with saline water and submitted to different methods of hydrogen peroxide application, 145 days after sowing ns, **, * respectively, not significant, significant at p<0.01 and significant at p<0.05 affect the physiological aspects of the plant, promoting ionic, osmotic, hormonal and nutritional changes, thereby causing a reduction in growth and, consequently, in biomass accumulation (SÁ et al, 2019). In research developed by Silva et al (2019b), in soursop seedlings under salt stress (ECw ranging from 0.7 to 3.5 dS m -1 ), the authors also found a reduction in dry matter accumulation for increases in the electrical conductivity of the irrigation water.…”