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003 MX-TxCIM
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040 _aMX-TxCIM
041 _aeng
072 0 _aF03
072 0 _aF30
090 _aCIS-3878
100 1 _aCordova, H.
_95333
111 2 _aArnel R. Hallauer International Symposium on Plant Breeding
_cMexico, D.F. (Mexico)
_d17-22 Aug 2003
245 1 0 _aHybrid ability and yield stability of tropical quality protein maize white lines
260 _aMexico, DF (Mexico) :
_bCIMMYT,
_c2003.
300 _a2 pages
340 _aPrinted
520 _aForty-two million hectares of white endosperm maize is planted annually throughout the developing world. Ninety-five percent of this harvest is used for human consumption. Quality protein maize (QPM) could provide a good source of quality protein and, thereby, reduce the impact of malnutrition for the 70 million people living in Africa, Latin America, and Asia. CIMMYT's newly developed QPM is receiving increasing importance in the developing world. After five years of promotion of new QPM hybrids and synthetics, 18 countries have released cultivars covering more than 600,000 hectares (Cordova 2001). The availability of good QPM germplasm in the public and private sectors in the developing world will play an important role in the future of QPM hybrid development efforts. Since CIMMYT first released 56 QPM lines in 1992, no further releases have been completed. It is therefore necessary to accumulate information on combining ability for future releases, as well as yield stability in the single cross hybrids. Design II crosses have been used extensively in maize breeding research to: identify superior hybrids; investigate general combining abilities (GCA) of the parents; differentiate the best parent for hybrid formation; and determine material for new sources of heterotic groups (HG). The additive main effects and multiplicative interaction analysis (AMMI) have been reported to understand the complex genotype x environment (GE) interactions (Gauch and Zobel 1988; Ebdon and Gauch 2002).
546 _aText in English
591 _a0309|AGRIS 0301|AL-Maize Program
595 _aCSC
650 1 7 _aCross-breeding
_2AGROVOC
_926603
650 1 7 _aDeveloping countries
_2AGROVOC
_93229
650 1 7 _91097
_aEndosperm
_2AGROVOC
650 1 7 _aGermplasm
_2AGROVOC
_91136
650 1 7 _aMaize
_2AGROVOC
_91173
650 1 7 _aSeed production
_91253
_2AGROVOC
650 1 7 _91134
_aGenotypes
_2AGROVOC
650 1 7 _aPlant breeding
_gAGROVOC
_2
_91203
700 _aTrifunovic, S.
_97290
700 _aVergara, N.
_97291
700 1 _aRamirez, A.
_927980
700 1 _aSierra-Macias, M.
_eMexico, DF (Mexico) : CIMMYT, 2003
_93741
700 1 _aAvila, G.
_97190
773 _dMexico, DF (Mexico) : CIMMYT, 2003
_gp. 110-111
_tBook of abstracts : Arnel R. Hallauer international symposium on plant breeding
_wG76572
_z970-648-106-0
942 _cSUM
_2ddc
999 _c7038
_d7038