SciELO - Scientific Electronic Library Online

vol.62 issue1Field calibration of capacitive probes, physical-hydric propriety and variation of water storage in soil cultivated with cactus forageAttractiveness of Chrysoperla externa (Hagen, 1861) adults to volatile compounds of coriander, dill and fennel (Apiaceae) in laboratory conditions author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Ceres

Print version ISSN 0034-737X


NASCIMENTO, Moysés et al. Multiple centroid method to evaluate the adaptability of alfalfa genotypes. Rev. Ceres [online]. 2015, vol.62, n.1, pp.30-36. ISSN 0034-737X.

This study aimed to evaluate the efficiency of multiple centroids to study the adaptability of alfalfa genotypes (Medicago sativa L.). In this method, the genotypes are compared with ideotypes defined by the bissegmented regression model, according to the researcher's interest. Thus, genotype classification is carried out as determined by the objective of the researcher and the proposed recommendation strategy. Despite the great potential of the method, it needs to be evaluated under the biological context (with real data). In this context, we used data on the evaluation of dry matter production of 92 alfalfa cultivars, with 20 cuttings, from an experiment in randomized blocks with two repetitions carried out from November 2004 to June 2006. The multiple centroid method proved efficient for classifying alfalfa genotypes. Moreover, it showed no unambiguous indications and provided that ideotypes were defined according to the researcher's interest, facilitating data interpretation.

Keywords : principal components; genotype x environment interaction; Medicago sativa L..

        · abstract in Portuguese     · text in English     · English ( pdf )