Selection of Diploid and Tetraploid Banana Hybrids Resistant to Pseudocercospora fijiensis

• DOI: 10.3390/agronomy11122483
• Publication Date: 2021-12-07T14:52:29Z
• Authors: Zalmar Santana Go...; Anelita de Jesus ...; Fernando Haddad; Vanusia Batista d...; Claudia Fortes Fe...; Edson Perito Amorim
• Keywords: hybrids; 2. Zero hunger; 0303 health sciences; 03 medical and health sciences; genetic resistance; improvement; hybrids; black Sigatoka; <i>Musa</i> sp.; genetic resistance; S; <i>Musa</i> sp.; Agriculture; black Sigatoka; improvement

Black Sigatoka, a disease caused by the fungus Pseudocercospora fijiensis, can lead to complete loss of banana and plantain production in absence chemical control. The development resistant cultivars is focus many breeding programs an alternative use fungicides. In order define refined method selection genetic programs, this study evaluated 23 improved diploids, seven tetraploids, two commercial presence P. fijiensis. Four criteria were considered: means severity index (ID) area under progress curve (AUDPC) estimated over total period experiment, only summer, winter, emission harvesting bunches. genotypes was more effective evaluation four leaves no. 3 emitted after six months growth efficient at differentiating susceptible genotypes. For diploids tetraploid hybrids, DI varied from 0.0 48.8 15.1 63.5, respectively, AACPD for hybrids 2439.5 1000.2 3717.7, respectively. hybrid Prata-type CNPMF0906 cultivar, which BRS Princesa Silk type, showed quantitative resistance be used producers. Results suggest that guidelines adopted black Sigatoka may include methodologies reduce time. addition, new sources influence its inheritance future crosses found.