Effects of submergence period in saline water and cured under soil flooding and unflooding condition with fresh water on growth and mortality of Pinus thumbergii and Taxodium distichum seedlings

Abstract

In this study, saplings of Taxodium distichum and Pinus thumbergii were grown under flooded/unflooded condition following total submergence in saline water for various periods to compare their growth and mortality. The morality of T. distichum was 30 % in saplings of 12hr submergence with unflooded recovery treatment. The survived T. distichum saplings were also inhibited the growth increment. The mortality of P. thumbergii remained 14% in saplings submerged for 24hr when de-submerged saplings were grown under unflooded condition. However, the mortality of P. thumbergii saplings under flooding environment is very high regardless of submergence period.