Alternative control of stem-end rot in mango
| Autor: | Thiago Alves Santos de Oliveira, Severina Rodrigues de Oliveira Lins, Sônia Maria Alves de Oliveira, Alice Maria Gonçalves Santos, Elizabeth Rodrigues Alexandre |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Mineralogy
chemistry.chemical_element Plant Science lcsh:Plant culture Calcium postharvest chemistry.chemical_compound Potassium phosphate lcsh:Botany Ultraviolet light lcsh:SB1-1110 manegement Lasiodiplodia theobromae pós-colheita Mycelium biology Inoculation Mangifera indica biology.organism_classification lcsh:QK1-989 Horticulture Split plot chemistry visual_art visual_art.visual_art_medium manejo Bark |
| Zdroj: | Summa Phytopathologica, Vol 37, Iss 3, Pp 121-126 (2011) Summa Phytopathologica, Volume: 37, Issue: 3, Pages: 121-126, Published: SEP 2011 Summa Phytopathologica v.37 n.3 2011 Summa phytopathologica Grupo Paulista de Fitopatologia instacron:GPF |
| ISSN: | 0100-5405 |
| DOI: | 10.1590/s0100-54052011000300007 |
| Popis: | O objetivo dessa pesquisa foi verificar o efeito de produtos alternativos em mangas inoculadas com Lasiodiplodia theobromae e a influência desses sobre o crescimento micelial do fitopatógeno. Mangas foram tratadas com fosfato de potássio (FP) (50, 100 e 150), ácido hidroxidobenzóico (AH) (5, 10 e 15), cloreto de cálcio (CC) (0,13, 0,26 e 0,39) (em milimolar), Luz ultravioleta (LUV) (10; 20 e 30 min.), extratos de alho (EA), melão-de-são-caetano (EM), casca de manga (ECM) (25, 50 e 75%) e água (testemunha). Inoculou-se 10m de suspensão de 10(6) conídios/mL de L. theobromae imediatamente (T1), 12 horas (T2) e 24 horas, após os tratamentos (T3). No T1, os melhores tratamentos foram FP (50 mmol) e CC (0,13 mmol). No T2 foram CC (0,13 mmol), AH (5 mmol), EA (25%) e FP (100 mmol). No T3 não houve diferença entre os tratamentos. In vitro, os produtos foram misturados ao meio de cultura. Após solidificação, depositaram-se no centro de cada placa, estruturas do fitopatógeno. Quarenta e oito horas após, mediu-se o diâmetro da colônia. Os melhores tratamentos foram FP (100 e 150 mmol), ECM (50 e 75%) e EA (50%). The aim of this study was to evaluate the effect of alternative products in mango sleeves inoculated challenged with Lasiodiplodia theobromae and its influence on the mycelial growth of the pathogen in vitro. Mangoes were treated with: potassium phosphate (50, 100 and 150), hidroxidobenzóico acid (5, 10 and 15), calcium chloride (0.13, 0.26 and 0.39) (in mmol), ultraviolet light ( 10, 20 and 30 min.), extracts of garlic, melons of the Caetano, bark of mango (25, 50 and 75%) and water (control). The design was a split plot. 10(6) con./mL was inoculated immediately after each treatment (T1), twelve hours after (T2) and twenty-four hours after (T3). In T1, the best treatments were PO (50 mmol) and CC (0.13 mmol). T2 in there were CC (0.13 mmol), AH (5 mmol), EA (25%) and FP (100 mmol). In T3 there was no difference between treatments. In vitro treatments were mixed into the culture medium. After solidification it was placed in the center of each plate, structures of the phythopathogen. The model was in DIC with 6 replications. After 48 hours it was measured the diameter of the colony. The best treatments were FP (100 and 150 mmol), ECM (50 and 75%) and EA (50%). |
| Databáze: | OpenAIRE |
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