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008 210907s2004 xxu|||p|op||| 00| 0 eng d
022 _a1435-0653 (Online)
024 8 _ahttps://doi.org/10.2135/cropsci2004.1163
040 _aMX-TxCIM
041 _aeng
072 0 _aE16
072 0 _aF30
090 _aCIS-4071
100 1 _91659
_aLillemo, M.
245 1 0 _aAssociations among International CIMMYT bread wheat yield testing locations in high rainfall areas and their implications for wheat breeding
260 _aUSA :
_bCSSA :
_bWiley,
_c2004.
340 _aComputer File
500 _aPeer review
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X
520 _aA good understanding of how the target environments for a breeding program differentiate the germplasm with respect to yield is crucial and allows plant breeders to better target their germplasm. To determine the relationships among high rainfall yield testing locations, yield data from 8 yr of CIMMYT's High Rainfall Wheat Yield Trial (HRWYT) were analyzed by shifted multiplicative model (SHMM) and incremental sum of squares (ISS) classification analyses to group sites within and across years. In the cumulative cluster analysis, about half of the sites clustered into a group characterized by increasing temperature toward maturity. The SHMM analysis identified several sites with high overall association with other sites around the world, and which can be considered as good predictors of global yield performance within the high rainfall megaenvironment. These are autumn-sown locations, which fall into the biggest group of the cumulative cluster analysis with increasing temperature during the growing season. On the other hand, remarkably low associations with global yield ranking were shown for Sta. Catalina (Ecuador) and CIMMYT's primary high rainfall yield-testing location at Toluca (Mexico), which in contrast experience decreasing temperatures toward maturity. Although excellent sites for disease screening, this analysis shows that they do not associate well with the world's high rainfall wheat growing areas for yield.
546 _aText in English
591 _a0407|Crop Science Society of America (CSSA)|AL-Wheat Program
650 7 _aBread
_91027
_2AGROVOC
650 7 _aEnvironmental factors
_2AGROVOC
_94558
650 7 _aGermplasm
_2AGROVOC
_91136
650 7 _aGrowth period
_2AGROVOC
_96142
650 7 _91313
_aYields
_2AGROVOC
650 7 _aPlant breeding
_gAGROVOC
_2
_91203
700 1 _aGinkel, M. Van
_997
700 1 _9341
_aTrethowan, R.M.
700 1 _922785
_aHernandez, E.
700 1 _9661
_aRajaram, S.
773 0 _tCrop Science
_n630022
_gv. 44, no. 4, p. 1163-1169
_dUSA : CSSA : Wiley, 2004.
_wG444244
_x1435-0653
856 4 _yAccess only for CIMMYT Staff
_uhttps://hdl.handle.net/20.500.12665/1296
942 _cJA
_2ddc
_n0
999 _c24778
_d24778