01883naa a2200289 a 450000100080000000500110000800800410001910000160006024500480007626000090012452010860013365000160121965000180123565000140125365000240126765300270129165300230131865300180134165300150135965300380137465300150141270000180142770000240144570000170146970000170148677300900150314279842010-10-22       2009    bl uuuu     u00u1 u    #d1 aBONI, T. A.  aInheritance of aluminum tolerance in maize.  c2009  aThe purpose of this study was to investigate aluminum tolerance in maize. For this purpose, a nutrient solution was used with the tolerant (L922) and sensitive (Ast214) homozygous parental lines, with the segregating generation F2 and with the F2:3 lines derived thereof. Seeds were germinated on paper and seedlings transferred to a nutrient solution containing 4.5 mg L-1 aluminum. In the experiments involving F2:3 derived lines groups of rows with F2:3 plants were intercropped with rows of eight seedlings of the parental lines in a completely randomized block design. Results of the F2 generation demonstrated a bimodal distribution of relative frequencies, with approximately three times more seedlings in the tolerant group. This suggests the participation of only one locus in tolerance inheritance. The narrow-sense heritability (F2, F2:3) of seminal root length of F2 plants and means of F2:3 lines was 0.49, which partially explained the bimodal frequency distribution of means of F2:3 lines, but was not accurate enough to differentiate tolerant from sensitive groups.  aAgricultura  aBiotecnologia  aGenética  aSolução Nutritiva  aDistribuição bimodal  aHerança genética  aHerdabilidade  aPlântulas  aTolerância ao alumínio em milho  aZea mays L1 aPRIOLI, A. J.1 aPRIOLI, S. M. A. P.1 aLUCIO, L. C.1 aMELLO, R. de  tCrop Breeding and Applied Biotechnology, Londrinagv. 9, n. 2, p. 147-153, June 2009.