Phenotypic plasticity and water flux rates of Citrus root orders under salinity

摘要: Knowledge about the root system structure and uptake efficiency of orders is critical to understand adaptive plasticity plants towards salt stress. Thus, this study describes phenological physiological Citrus volkameriana rootstocks under severe NaCl stress on level orders. Phenotypic traits known influence processes, for example frequency orders, specific area, cortical thickness, xylem traits, did not change homogeneously throughout system, but changes after 6 months 90 mM were order specific. Chloride accumulation significantly increased with decreasing order, Cl(-) concentration in lower exceeded those leaves. Water flux densities first-order roots decreased <20% salinity recover release. The water higher changed marginally 2- 6-fold second third short-term Changes frequency, morphology, anatomy indicate rapid major modification C. systems Reduced was related among reduced surface areas. importance from tips order-specific reflect differences vulnerability (indicated by accumulation) ontogenetic status, point functional high salinity.