Fig. 3From: Micronutrients (Zn/Mn), seaweed extracts, and plant growth-promoting bacteria as cold-stress protectants in maizeRoot length density of maize plants exposed to a root zone temperature of 12–14 °C for two weeks in a cooling system. 0-Ctrl untreated control, Prox Proradix, Afect Algafect. Data represent means and SE of five independent replicates for each treatment. Significant differences (Tukey test, α < 5 %) are marked with different letters Back to article page