Author(s): LESSA, M. S. C. de M.; AMARAL, T. M.; LEAO, P. C. de S.; OLIVA, J. T.

Summary: Developing new table grape cultivars that exhibit high yield and superior fruit quality is imperative to meet the escalating demands of the consumer market in the Lower-Middle S˜ao Francisco River Valley. The primary objective of Embrapa Semi´arido’s Active Germplasm Banks (AGB) for grapes is the conservation of Vitis sp. germplasm under semi-arid climatic conditions to make it available for research, particularly for the breeding and development of novel grape cultivars. This study aims to use Multi-Criteria Decision Analysis (MCDA), specifically the Preference Ranking Organization Method for Enrichment Evaluation (Promethee) II, to rank the grape genotypes of the Embrapa Semi´arido’s AGB, considering multiple criteria to define the primary grape varieties for the breeding program. The decision maker (DM) participated in all process stages, from validating qualitative and quantitative criteria to evaluating the criteria weights, and the decision matrix had 106 seeded and 50 seedless grape genotypes with 14 criteria. For visual analysis, we generated the GAIA Plane using the Visual Promethee Software. In the group of seeded grape cultivars, the three top- ranked genotypes were ’Italia Clone I?, ’Dona Maria’, and ’Italia Muscat’, while in the seedless group, the best-rated were ’BRS ´Isis’, ’BRS Linda’, and ’BRS Morena’. Our research demonstrated, for the first time, the evaluation of grape genotypes using MCDA method with qualitative and quantitative criteria.

Publication year: 2024

Types of publication: Journal article

Unit: Embrapa Semi-arid Region

Keywords: Análise de decisão multicritério, Bancos Ativos de Germoplasma, Genótipo, Genótipos de uva, Melhoramento Genético Vegetal, Tomando uma decisão, Uva, Uva de mesa