Incidence and severity of anthracnose in breeding lines and crosses of papaya (Carica papaya).
Abstract
The objective
of this study was to determine the incidence and severity of
papaya fruit anthracnose (Colletotrichum gloeosporioides).
The experiment was carried out in Guápiles, Limón, Costa
Rica, between the years 2010 and 2011. Five lines and
four crosses were evaluated in a randomized complete
block design with three replications. Evaluated traits were
incidence and severity of anthracnose, fruit firmness and
total soluble solids content of the pulp. Results suggest
that the crosses have intermediate characteristics to those
of their parent lines for these traits. In the specific case of
anthracnose, evidence also suggests that the resistance to this
disease tends to be inherited in a dominant manner.
Keywords:
Colletotrichum gloeosporioides, postharvest life of papaya fruit, anthracnose resistance in papaya.