Pathogenicity of Macrophomina phaseolina in cultivars and accessions of Cucumis melo
| Autor: | Márcia Michele Queiroz Ambrósio, R. Sales, Andréia Mitsa Paiva Negreiros, Luan Vítor Nascimento, Naama Jessica de Assis Melo, Alricélia Gomes de Lima |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology Inoculation Melon food and beverages Sowing Plant Science Fungus biology.organism_classification 01 natural sciences humanities 03 medical and health sciences Horticulture 030104 developmental biology Macrophomina phaseolina Cultivar Cucumis 010606 plant biology & botany Hybrid |
| Zdroj: | Journal of Plant Pathology. 103:969-972 |
| ISSN: | 2239-7264 1125-4653 |
| DOI: | 10.1007/s42161-021-00832-2 |
| Popis: | The productivity of melon crops is affected by several soilborne pathogens. The objective of this work was to assess the susceptibility of different melon hybrids to infection by the fungus Macrophomina phaseolina. Seeds of 42 melon genotypic accessions were sown in 750 mL plastic vessels with a mixture of Tropstrato® substrate and Ecofertil® compost in a 3:1 ratio. Inoculations were carried out 10 days after sowing using toothpicks colonised by the pathogen. A completely randomised design with 42 treatments and four replications was used in two successive trials. Plant health was scored using a 0–5 diagrammatic scale, 45 days after sowing. All melon genotypes developed disease symptoms but susceptibility varied across accessions. While 42.8% of tested accessions were highly susceptible, 50.0% were susceptible, and 7.2% were moderately resistant. No genotypes were resistant to M. phaseolina. Although the results presented here may lower the overall disease severity in melon crops, melon breeding programs need to identify sources of resistance to this pathogen. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink