title: [A contribution to an evalution of general combining ability of alfalfa clones].
abstract: Recombinational performance of different clones of alfalfa was compared in two types of seed : (a) produced by systematic mating of the clones and (b) produced by the polycross procedure. No basic differences between the two types of progeny were found for the characteristics investigated. Thus neither greater objectivity nor greater test efficiency of the polycross technique was demonstrated.Factors determining objective evaluation of general combining ability of alfalfa by means of the polycross test technique are discyssed.
authors.affiliation: Institut für Ackerbau, Abteilung für Feldversuchswesen und Biometrie, Hrušovany bei Brno, und Lehrstuhl für Pflanzenzüchtung der Landwirtschaftlichen Universität in Brno, Czech Republic.
authors.forename: J
authors.initials: J
authors.lastname: Crod