Figure 5From: Nitrogen limitation and high density responses in rice suggest a role for ethylene under high density stressExpression levels of ethylene biosynthesis genes ACC synthase 1 , ACC synthase 2 and ACC oxidase 7 of rice plants grown under high density (HD) and low density (LD) at 21 and 31 days. All data is mean ± SEM. For statistical significance (*) t-test was applied for every pair of means for a given gene at a given time point (p < 0.05, n = 3).Back to article page