000 02476nam a22004457a 4500
001 65847
003 MX-TxCIM
005 20190401213004.0
008 121211s ||||f| 0 p|p||0|| |
020 _a968-6923-93-4
040 _aMX-TxCIM
072 0 _aF30
072 0 _aH50
082 0 4 _a633.153
_bEDM
100 1 _aBeck, D.L.
_uDeveloping Drought- and Low N-Tolerant Maize. Proceedings of a Symposium; El Batan, Tex. (Mexico); 25- 29 Mar 1996
110 2 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 0 0 _aFrom landrace to hybrid:
_b Strategies for the use of source populations and lines in the development of drought tolerant cultivars
260 _aMexico, DF (Mexico)
_bCIMMYT :
_c1997
340 _aPrinted
520 _aSignificant yield reductions caused by drought are common occurrences in maize production fields throughout the world. Although breeding efforts aimed at developing drought-tolerant cultivars are justified in many of these regions, the complexity of the task and the scarcity of resources are often prohibitive. This paper will present principles learned and give an account of germplasm developed, based on our experience with drought-tolerant breeding at CIMMYT. Strategies discussed leading to more efficient development of drought tolerant cultivars include: a)field management of drought stress; b) source population development; c) utilization and introgression of "exotic" drought tolerant sources; d) appropriate recurrent selection schemes; e) use of secondary traits and selection indices; f) line development; and g) hybrid formation and testing.
536 _aGenetic Resources Program|Research and Partnership Program
546 _aEnglish
591 _a9802|AGRIS 9702|anterior|R97-98PROCE|FINAL9798
593 _aJose Juan Caballero
594 _aINT1888|INT3242
595 _aCPC
650 1 0 _aDrought resistance
650 1 0 _91081
_aDrought stress
_gAGROVOC
653 0 _aCIMMYT
650 1 0 _91127
_aGenetic resources
650 1 0 _91314
_aZea mays
_gAGROVOC
650 1 0 _91151
_aHybrids
_gAGROVOC
650 1 0 _91203
_aPlant breeding
_gAGROVOC
700 1 _aBetrán, F.J.,
_ecoaut.
700 1 _aEdmeades, G.O.,
_ecoaut.
700 1 _aEdmeades, G.O.|Banziger, M.|Mickelson, H.R.|Peña-Valdivia, C.B.
_eeds.
700 1 _9908
_aWillcox, M.
_gGlobal Maize Program
_8INT3242
_ecoaut.
700 1 _9834
_aBanziger, M.
_gResearch & Partnership Program
_8INT1888
_ecoaut.
942 _cPRO
999 _c3738
_d3738