000 03143nab a22004097a 4500
001 G89583
003 MX-TxCIM
005 20240919020945.0
008 210803s2006 xxu|||p|op||| 00| 0 eng d
022 _a1435-0653 (Online)
024 8 _ahttps://doi.org/10.2135/cropsci2006.04.0227
040 _aMX-TxCIM
041 _aeng
090 _aCIS-4852
100 1 _aCotes, J.M.
_921792
245 1 2 _aA bayesian approach for assessing the stability of genotypes
260 _aUSA :
_bCSSA :
_bWiley.
_c2006.
340 _aComputer File|Printed
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 _aSeveral statistical models can be used for assessing genotype × environment interaction (GEI) and studying genotypic stability. The objectives of this research were to show how (i) to use Bayesian methodology for computing Shukla's phenotypic stability variance and (ii) to incorporate prior information on the parameters for better estimation. Potato [Solanum tuberosum subsp. andigenum (Juz. & Bukasov) Hawkes], wheat (Triticum aestivum L.), and maize (Zea mays L.) multi environment trials (MET) were used for illustrating the application of the Bayes paradigm. The potato trial included 15 genotypes, but prior information for just three genotypes was used. The wheat trial used prior information on all 10 genotypes included in the trial, whereas for the maize trial, noninformative priors for the nine genotypes was used. Concerning the posterior distribution of the genotypic means, the maize MET with 20 sites gave less disperse posterior distributions of the genotypic means than did the posterior distribution of the genotypic means of the other METs, which included fewer environments. The Bayesian approach allows use of other statistical strategies such as the normal truncated distribution (used in this study). When analyzing grain yield, a lower bound of zero and an upper bound set by the researcher's experience can be used. The Bayesian paradigm offers plant breeders the possibility of computing the probability of a genotype being the best performer. The results of this study show that although some genotypes may have a very low probability of being the best in all sites, they have a relatively good chance of being among the five highest yielding genotypes.
536 _aGenetic Resources Program
546 _aText in English
591 _aCrop Science Society of America (CSSA)
594 _aCCJL01
650 7 _2AGROVOC
_92624
_aStatistical methods
650 7 _2AGROVOC
_94013
_aBayesian theory
650 7 _2AGROVOC
_91994
_aFood crops
650 7 _2AGROVOC
_91134
_aGenotypes
650 7 _2AGROVOC
_96345
_aStability
700 1 _aCrossa, J.
_gGenetic Resources Program
_8CCJL01
_959
700 1 _921793
_aSanches, A.
700 1 _99555
_aCornelius, P.L.
773 0 _tCrop Science
_n634482
_gv. 46, no. 6, p. 2654-2665
_dUSA : CSSA : Wiley, 2006.
_wG444244
_x1435-0653
856 4 _yAccess only for CIMMYT Staff
_uhttps://hdl.handle.net/20.500.12665/334
942 _cJA
_2ddc
_n0
999 _c26522
_d26522