Incidence of root rot of muskmelon in different soil management practices
| Autor: | Beatriz Letícia Silva da Cruz, Andréa Mirne de Macêdo Dantas, Márcia Michelle de Queiroz Ambrósio, Washington Luís da Silva, Rui Sales Júnior, Francisco Cláudio Lopes de Freitas, Paula Gracielly Morais Lima do Nascimento |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
No-tillage Monosporascus cannonballus Plant Science Horticulture 01 natural sciences Rhizoctonia solani Cucumis melo Root rot Cover crop Fusarium solani Conventional tillage biology fungi food and beverages 04 agricultural and veterinary sciences Crop rotation biology.organism_classification Macrophomina phaseolina 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV |
| ISSN: | 1573-8469 0929-1873 |
| Popis: | The objective of this study was to estimate the effects of tillage systems and cover crops on the incidence of root rot in melon and to identify the fungal pathogens associated with the disease. Two consecutive trials were carried out in a randomized complete block design with four replications in each trial. The treatments were arranged in split-plots. Two tillage systems (no-tillage (NT) and conventional tillage (CT)) were assigned in the main plots and in the subplot the six types of ground cover crops were tested (sunn hemp, pearl millet, sunn hemp + pearl millet, corn + brachiaria, spontaneous vegetation, spontaneous vegetation + polyethylene film) or bare soil. At the end of the trials all melon plants were collected and assessed for disease incidence, isolations from symptomatic plants were made for fungal identification. Root rot incidence was lower in the NT treatments with sunn hemp, pearl millet, and spontaneous vegetation. The main fungi isolated from symptomatic roots were Fusarium solani, Macrophomina phaseolina, Monosporascus cannonballus and Rhizoctonia solani, but F. solani was the most frequently isolated fungus in both tillage systems. The results suggest that the NT system has the potential to control incidence of root rot of muskmelon, but is necessary to realize crop rotation between the planting cycles. |
| Databáze: | OpenAIRE |
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