ASSIS, J. S. de

COSTA, J. G. da

SANTOS, C. A. F.

It was observed a huge genetic divergence among accessions, suggesting a large genetic variability among them for many agronomic traits

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Selection of mango germplasm for cross breeding program based on multivariate analysis in theBrazilian Semi-aridJoão Gomes da Costa, Carlos Antônio Fernandes Santos, Joston Simão de AssisEmbrapa Semi-Árido, C.P.23, CEP 56302-970, Petrolina-PE, Brazil, jgomes@cpatsa.embrapa.brIn order to identify mango accessions for a cross breeding program, multivariate analysis was applied in agermplasm collection to estimate the genetic divergence among them. 48 accessions of the Embrapa Semi-AridMangoes Germplasm Bank, located at Juazeiro, BA, Brazil were evaluated for seven fruit quantitative traits. Themultivariate technique was Tocher cluster, based on the averaged Euclidian distance of the standardized originaldata. It was observed a huge genetic divergence among accessions, suggesting a large genetic variability amongthem for many agronomic traits. The largest and the shortest genetic divergence were observed between thecultivar Parwin and Favo de Mel, and Bonita and Dama de Ouro, respectively. Taking in account the geneticdistance and the agronomic performance, the crosses between Parwin x Espada Ouro, Parwin x Eldon, Parwin xMaia, Parwin x GI Proc. 006, Parwin x Favo de Mel, Palmer x Maçã, Palmer x Espada, Palmer x GI Proc 006,Palmer x Espada Ouro, Palmer x Pêssego, Manzanillo x Carabao, Smith x Foice and Momi-K x Kensington shouldresult in a good genetic combinations, and therefore they are recommended for mango breeding program in theBrazilian Semi-Arid Region.

Selection of mango germplasm for cross breeding program based on multivariate analysis in the brazilian semi-árid.

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