01754naa a2200277 a 450000100080000000500110000800800410001910000200006024500630008026000090014352009590015265000350111165000100114665000130115670000180116970000290118770000280121670000200124470000210126470000270128570000240131270000170133670000180135370000190137177300860139018713942018-05-29       2010    bl uuuu     u00u1 u    #d1 aTEIXEIRA, F. F.  aEvaluation of maize core collection for drought tolerance.  c2010  aThe maize genebank (GBmaize) preserves nearly 4,000 accessions for conservation and use. The use is however restricted because the accessions do not performs as well as the elite genotypes. This problem can be reduced by pre-breeding, i. e., by extending the information on germplasm and introgressing useful alleles. Since irregular rainfall distribution and drought induce maize yield losses, drought tolerance is a man breeding target. In this study, the GBmaize accessions were evaluated for drought tolerance. Environmental factors, genotypes and the respective interactions influence the phenotypic expression. There was however no interaction genotype-irrigation level, so no accessions with different performance under the two water regimes could be identified. The performance of the following accessions was promising for a number of traits: SP154, BA166, MG099, CE002, SE025, BA154, BA194, BA085, MG076, PRO053, Roxo Macapá, SE016, and AL018.  aMelhoramento genético vegetal  aMilho  aZea mays1 aGOMIDE, R. L.1 aALBUQUERQUE, P. E. P. de1 aANDRADE, C. de L. T. de1 aLEITE, C. E. P.1 aPARENTONI, S. N.1 aGUIMARAES, P. E. de O.1 aGUIMARAES, L. J. M.1 aSILVA, A. R.1 aBASTOS, E. A.1 aCARDOSO, M. J.  tCrop Breeding and Applied Biotechnology, Londrinagv. 10, n. 4, p. 312-320, 2010.