Silicon application did not influence the dry weight of rice plants in the wet treatment.
Upon expose to drought stress, rice growth decreased significantly, while exogenously
applied 1.5 mM silicon significantly increased plant dry matter. The shoot dry weight in the
dry/Si+ treatment increased by 103.2% for w-14 and 97.4% for w-20 compared with dry /Si−
treatment (Table 1). Root and total dry weight were similarly affected by Si and drought
treatment in both lines.