[en] In order to investigate the growth and yield potential of narbon vetch (Vicia narbonensis L.), to elucidate the possible associations of plant traits, to inquire the basics of responses shown by genotypes across years through examining of genotype × year interaction effect, and to extrapolate the nature of adaptation, 27 accessions were evaluated for yield and yield related characters over four subsequent cropping seasons (1994-98) in the central Turkey. Days to harvest, biomass, seed yield, and harvest index were measured, and the results were analyzed by multiple statistical procedures: principal component analysis, linear regression analysis, cluster analysis, descriptive statistics, analysis of variance and additive and multiplicative model analysis. Four year effects were grouped into three classes (good, fairly-good and poor). Seed yield was positively correlated with days to harvest in the first (p&lt;0.05) and fourth (p&lt;0.001) years, and with biomass in all years, which made them plastic and fixed traits respectively. For seed yield, the 27 genotypes were separated into four groups, and year and interaction effects were found to be highly significant (p&lt;0.001). Certain genotypes behaved differently; G25 and G11 were more suitable for specific adaptation, while G2, G4, G6 and G27 were best for broad adaptation. These selected genotypes could be used as a set of reference lines in the evaluation of narbon vetch germplasm for better yield and adaptation. The enhanced developmental flexibility through adjusting plant growth-longevity combined well with higher biomass and harvest index is the primary form of narbon vetch adaptation to the semi-arid central Turkey and similar environments in the Mediterranean area.

[es] Con el fin de investigar el crecimiento y el rendimiento potencial de la Veza de Narbona (Vicia narbonensis L.), dilucidar las posibles asociaciones de caracteres de las plantas, investigar los fundamentos de la respuesta mostrada por los genotipos a trav&eacute;s de los a&ntilde;os mediante un examen del efecto de la interacci&oacute;n genotipo&times;a&ntilde;o, y extrapolar la naturaleza de la adaptaci&oacute;n, 27 accesiones fueron evaluados para rendimiento, y los caracteres relacionados con el rendimiento evaluados durante cuatro temporadas (1994-98). Se midieron los d&iacute;as a cosecha, la biomasa, rendimiento de semillas e &iacute;ndice de cosecha. Los resultados se analizaron por varios procedimientos estad&iacute;sticos: an&aacute;lisis de componentes principales, an&aacute;lisis de regresi&oacute;n lineal, an&aacute;lisis de grupos, estad&iacute;stica descriptiva, an&aacute;lisis de varianza y AMMI. Los efectos de los 4 a&ntilde;os se agruparon en tres clases (buenos, bastante buenos y malos). El rendimiento de semillas se correlacion&oacute; positivamente con los d&iacute;as a cosecha en el primer (p&lt;0,05) y cuarto (p&lt;0,001) a&ntilde;o, y con la biomasa todos los a&ntilde;os, lo que les hace caracteres pl&aacute;sticos y fijos, respectivamente. Los 27 genotipos se diferencian en cuatro grupos seg&uacute;n el rendimiento de semillas, y los efectos del a&ntilde;o y su interacci&oacute;n fueron altamente significativos (p&lt;0,001). Ciertos genotipos se comportaron de manera diferente, G25 y G11 son m&aacute;s adecuados para una adaptaci&oacute;n espec&iacute;fica, mientras que G2, G4, G6 y G27 fueron mejores para una adaptaci&oacute;n amplia. Estos genotipos pueden utilizarse como referencia para la evaluaci&oacute;n de germoplasma de Veza de Narbona para un mejor rendimiento y adaptaci&oacute;n. Una mayor flexibilidad en el desarrollo del crecimiento de las plantas combinada con mayor biomasa e &iacute;ndice de cosecha es la forma primaria de adaptaci&oacute;n de la Veza de Narbona en la Turqu&iacute;a central semi&aacute;rida y ambientes similares del &aacute;rea mediterr&aacute;nea.