01879naa a2200385 a 450000100080000000500110000800800410001910000180006024500800007826000090015850001210016752007530028865000130104165000220105465000130107665000130108965000120110265000220111465000260113665000350116265000090119765000140120665300140122065300150123465300230124965300160127265300140128865300160130265300150131865300260133365300200135965300120137965300120139177300900140321219292020-04-29       1994    bl uuuu     u00u1 u    #d1 aSPEHAR, C. R.  aScreening soybean germplasm for aluminium tolerance using cluster analysis.  c1994  aTítulo em português: Emprego da análise de agrupamento quanto à tolerância ao alumínio em germoplasma de soja.  aPrincipal component and cluster analyses were carried out to assess diversity on soybean germplasm selected to cultivation in the Brazilian Savannas (Cerrados). The results indicated that aluminium tolerance was attained in the breeding material which showed variability when tested in the high-Al environment. The ample tolerance may have been a consequence of breeding and selecting soybeans in improved soils that were still Al-rich in deeper layers, although the varieties were homogeneous for agronomic characters, as shown by the analysis of data from the low-Alenvironment. This method can be successfully employed in genetic studies and in breeding programmes for crop improvement when parents of different clusters are chosen for crossing.  abreeding  achemical elements  aGenetics  asavannas  aCerrado  aElemento Químico  aInteração Genética  aMelhoramento Genético Vegetal  aSoja  aVariedade  aAdaptacao  aAdaptation  aElementos quimicos  aImprovement  aInteracao  aInteraction  aInteration  aMelhoramento genetico  aMineral element  aSoybean  aVariety  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 29, n. 1, p. 113-122, jan. 1994.