Fig. 4From: Maghemite Nanoparticles Acts as Nanozymes, Improving Growth and Abiotic Stress Tolerance in Brassica napus Photos of plants after rewatering after 5 days of drought stress. a Control plants irrigated with nutrient solution. b Plants irrigated with nutrient solution containing 0.8 mg/ml IONs. c Plants irrigated with nutrient solution containing 2 mg/ml IONsBack to article page