TY  - JA
AU  - Gallais,A.
TI  - Breeding methods and selection theory
SN  - 0723-7812
U1  - 94-075508 
PY  - 1984///
KW  - Breeding methods
KW  - AGROVOC
KW  - Progeny
KW  - Selection
KW  - Taxa
KW  - Plant breeding
N1  - 3 tables; 16 ref. Summary (En)
N2  - A comprehensive strategy of varietal development appears to be with two main axes: population improvement by recurrent selection and varietal development. The aim of population improvement must be to improve the varietal ability of the population(s), i.e., the expected value of all varieties of a given type which can be derived from the populations(s). The aim of varietal development will be to extract the best possible varieties from a given generation of the breeding population(s). So it is clear that the system of testing in population improvement must be adapted to the type of variety. To develop hybrids the combining ability has to be improved, for
T2  - Vortraege fuer Pflanzenzuechtung
ER  -