Morpho-agronomic variability of artichoke seed-propagated hybrids.

DE NARDI, F.S.; CALVETE, E.O.; REOLON-COSTA, A.; COSTA, R.C.; CRAVERO, V.P.; SCHEFFER-BASSO, S.M.

La Plata

Simposio; IX International Symposium on Artichoke, Cardoon and their wild relatives; 2015

ISHS

Using artichoke seed-propagated hybrids increase yield and reduce implementation costs what ensure the expansion of this crop. Morpho-agronomic characterization allows a thorough knowledge of each material enabling the producer to select the hybrid that meets the environmental conditions and the consumer market. Thus, the objective of this study was to evaluate the morpho-agronomic variability of four artichoke hybrids propagated by seed, based on qualitative (multicategorical) and quantitative traits. Study used the hybrid Concert F1, Madrigal F1, Opal F1 and Symphony F1, distributed in a completely randomized design with two replications. Analysis of variance was performed for quantitative characters and multivariate for both characters. Ward´s clustering method, from Euclidean distance average was used for both characters. Both multicategorical and quantitative traits allowed the formation of three groups. Among the multicategorical traits studied, maximum contribution (47.58%) for clustering was made by leaf size, bracts density and central head format. Among the quantitative traits, the growing season determined the clustering among the hybrids, with a relative contribution of 93.81%. There is variability among hybrids, which allows the producer to growth the most suitable material to environmental condition and meets the needs of consumer market.