Statistical analysis for Al tolerance traits in six subpopulations (Q).

Q1, guinea accessions from western Africa and guinea margaritiferum; Q2, caudatum accessions from Africa and group of transplanted caudatum and durra accessions from Lake Chad region; Q3, Lines from Embrapa collection and US; Q4, kafir accessions from southern Africa; Q5, durra, bicolor and caudatum accessions from eastern Africa and Asia; Q6, guinea accessions from southern Africa and Asia.Statistical analysis for Relative Net Root Growth (RNRG) after 3 and 5 days of Al exposure, Visual Root Damage (VRD) and Induction of Root Growth (IRG) in six sorghum subpopulations. Means followed by the same lower-case letters are not statistically different by the non-parametric least significant difference (lsd) test (P