Figure 2From: Forward screening for seedling tolerance to Fe toxicity reveals a polymorphic mutation in ferric chelate reductase in rice Distribution of responses to Fe toxicity of 4,500 M 4 lines in Fe-toxic (pH 3.0, FeEDTA 300 ppm) nutrient solution at the five-leaf seedling stage. The outcome of A) the 1st round of screening and B) the 2nd round of screening on 152 M4 mutants consisting of 95 tolerant and 57 intolerant M4 lines selected from the first round of mutants.Back to article page