Evaluation of different indices tolerance to drought based on multivariate analysis

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Tony Boicet Fabre
Michel Baldaquín Hernández
Ana D. Boudet Antomarchi
Yanitza Merino Hernández
Alejandro Alarcón Zayas
Wilmer Almarales Frías

Abstract

Under two different irrigation conditions, yield of ten Cubans cultivars of bean (Phaseolus vulgaris L.), were evaluated with the objective of evaluating different drought tolerance indices based on multivariate analysis in such a way that contribute to the interpretation of its effectiveness to discriminate tolerance variety to drought. The experimental design was completely randomized and four replications, grain yield under drought and irrigated conditions was evaluated and used to calculate stress indices: tolerance indice (TOL), stress susceptibility indice (SSI), geometric mean production (MPG), mean production (MP), stress tolerance indice (STI), drought resistance indice (DI), relative drought indice (RDI), sensitivity drought indice (SDI) and abiotic tolerance indice (ATI), principal component, cluster, correlation and descriptive analysis between grain yield in both conditions were calculated. In this study softly demonstrated that each indice contribute to identify variety with drought tolerance, and multivariate analysis contribute to interpreter of indices effectiveness, and it is advisable to combine the multivariate analysis and use several indices, due to difference in occasion of the results obtained in the discrimination of variety to drought.

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How to Cite
Boicet Fabre, T., Baldaquín Hernández, M., Boudet Antomarchi, A. D., Merino Hernández, Y., Alarcón Zayas, A., & Almarales Frías, W. (2018). Evaluation of different indices tolerance to drought based on multivariate analysis. Cultivos Tropicales, 39(1), 61–67. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/1423
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