Bragantia (2012) 71, 235-238

Marcelo Vivas, Silvaldo Felipe da Silveira, Janieli Maganha Silva Vivas and Messias Gonzaga Pereira (2012)
Patometria, parâmetros genéticos e reação de progênies de mamoeiro à pinta-preta
[Pathometry, genetic parameters and papaya progenies reaction to black-spot disease]
Bragantia 71 (2), 235-238
Abstract: Genetic resistance is a sustainable alternative to control diseases in crops, being indispensable the enlargement of the genetic base to introduce new resistance genes on developing cultivars. This study reports the phenotypic evaluation of 24 papaya progenies, originated of landraces cultivated for small farmers in south of the Espírito Santo State, Brazil. Characteristics related to the resistance to black-spot disease, induced by the fungi Asperisporium caricae were evaluated. For comparison one genotype resistant ('Maradol') and one susceptible ('Golden') to black-spot disease were included on the study. Based on the genetic parameters estimated, the studied population has genetic variability for resistance to black spot diseases appropriates for use of recurrent selection as crop breeding method.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Silvaldo Felipe da Silveira

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Asperisporium caricae	Papaya (Carica papaya)	Brazil (south)