Fig. 1From: Arabidopsis seedlings respond differentially to nutrient efficacy of three rock meals by regulating root architecture and endogenous auxin homeostasisGrowth indices of 2-week-old Arabidopsis thaliana seedlings growing on three rock meals. a-b photographs of Arabidopsis seedlings; c fresh weight; d primary root length; e lateral root length; f lateral root density; g root hair length; h root hair density; i photographs showing root hairs. Data are presented as mean (n = 30) ± SD. Different letters (a, b, c, and d) indicate significance with p < 0.05Back to article page