caa a22 4500 47713419X CHVBK 20180405111713.0 cr unu---uuuuu 170330e19970101xx s 000 0 eng 10.1023/A:1002991915978 doi (NATIONALLICENCE)springer-10.1023/A:1002991915978 Temporal stability of multivariate genetic divergence in cacao ( Theobroma cacao L.) in Southern Bahia conditions [Elektronische Daten] [Luiz Antônio dos Santos Dias, Paulo Kageyama] Stability of the genetic divergence among five non-commercial cacao cultivars at advanced ages was investigated over a five-year period (1986-1990). Cluster analysis was performed on five yield components measured on harvests from each crop year and on the data pooled over five years. The temporal stability was assessed by using clustering procedure, which involved the calculation Mahalanobis distance (D2) and of Tocher's algorithm applied to the distance matrix. The comparison of D2 and of clusters based upon pooled analysis, and taken as the standard, with D2 values and clusters obtained from each year showed a stable clustering pattern in the most favourable year. For the rest of the years, inconsistency in number and composition of clusters formed was observed. An optimum environment was shown to be important for better expressing divergence by D2. Consequently, the evaluation of the genetic divergence among the studied cultivars may be conducted based on a single favourable year. This will result in considerable savings in man power, financial resources, and time which would be wasted should the evaluation be extended for several years. Kluwer Academic Publishers, 1997 cacao cultivars nationallicence genetic divergence nationallicence genetic improvement nationallicence cluster analysis nationallicence temporal stability of divergence nationallicence Theobroma cacao nationallicence Antônio dos Santos Dias Luiz Estação Experimental 'Filogônio Peixoto', Centro de Pesquisas do Cacau, Brasil aut Kageyama Paulo Departamento de Ciências Florestais, Escola Superior de Agricultura 'Luiz de Queiroz', Universidade de São Paulo, C.P. 09, 13.418-900, Piracicaba, SP, Brasil aut Euphytica Kluwer Academic Publishers 93/2(1997-01-01), 181-187 0014-2336 93:2<181 1997 93 10681 https://doi.org/10.1023/A:1002991915978 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002991915978 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Antônio dos Santos Dias Luiz Estação Experimental 'Filogônio Peixoto', Centro de Pesquisas do Cacau, Brasil aut NATIONALLICENCE 700 1- Kageyama Paulo Departamento de Ciências Florestais, Escola Superior de Agricultura 'Luiz de Queiroz', Universidade de São Paulo, C.P. 09, 13.418-900, Piracicaba, SP, Brasil aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 93/2(1997-01-01), 181-187 0014-2336 93:2<181 1997 93 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer