The L-ascorbic acid (AsA) content of six genotypes of blackcurrant (Ribes n
igrum L.) representative of the available genetic resources for this crop,
was measured in relation to berry development. The main period of AsA accum
ulation coincided with the berry expansion phase, soon after fertilization,
and genotypic rankings of AsA content established in this early stage rema
ined constant thereafter. No correlation was found between AsA content, sol
uble solids content or sugar levels.