versión On-line ISSN 1806-9991
GATTI, I.; LOPEZ ANIDO, F.; PICARDI, L. y COINTRY, E.. Parent selection in asparagus. Hortic. Bras. [online]. 2003, vol.21, n.2, pp. 163-166. ISSN 1806-9991. http://dx.doi.org/10.1590/S0102-05362003000200008.
The principal aim of this experiment was to ascertain what the variables are which best explain the variations among individuals within the populations of asparagus which originates from the cultivar Argenteüil and as a result select better plants to form new populations. The test, using 1,280 plants, was carried out at he experimental farm in the Facultad Ciencias Agrarias de la Universidad Nacional de Rosario, Santa Fé, Argentina, in 1996. During 1997 and 1998 the number of spears per plant (TU), the mean weight of spears (PM), mean diameter of spears (DI) total yield (RE), marketable yield (RM), days to first harvest (DAC), number of stalks (NUTA), plant height (ALT) and fresh weight of the fern (MASAV) were measured. According to an analysis of the principal components, the variables RE, RM, PM, DI and TU were responsible for 60% of the variation that exists within the population evaluated.
Palabras clave : Asparagus officinalis L.; principal components; cluster analysis.