Health quality and reduction of pathogenic transmission in tomato seeds using plant extracts
| Autor: | Maria Rosangela Malheiros Silva, Erlen Keila Candido e Silva, Raimunda Nonata Santos de Lemos, Anna Christina Sanazário de Oliveira, Antônia Alice Costa Rodrigues, Natalia de Jesus Ferreira Costa, Leonardo de Jesus Machado Gois de Oliveira, Mônica Shirley Brasil dos Santos e Silva |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0303 health sciences biology 030306 microbiology food and beverages Aspergillus flavus Plant Science Fungus biology.organism_classification 01 natural sciences Eucalyptus Aspergillus fumigatus 03 medical and health sciences chemistry.chemical_compound Horticulture chemistry Germination Seed treatment Cultivar Agronomy and Crop Science Incubation 010606 plant biology & botany |
| Zdroj: | APRIL 2019. 13:635-641 |
| ISSN: | 1835-2707 1835-2693 |
| DOI: | 10.21475/ajcs.19.13.04.p1680 |
| Popis: | The objective of the present study was to assess the seed health quality, quantification of seed-seedling pathogen transmission and the effect of plant extracts in reducing plant pathogens in the seeds of the tomato varieties San Marzano and Ipa 6. For the seed health, the samples were disinfested, plated and assessed after seven days, according to the Brazilian Seed Analysis Rule. For the transmission rate, 12 trays were prepared with 100 seeds each and assessed at 7, 14 and 21 d.a.s. (days after seeding) using 100 seedlings. The plant (main root, stalk and leaves) tissues were plated in PDA culture medium and assessed after seven days of incubation. Aqueous extracts were prepared from cinnamon, basil, neem and eucalyptus with 0.5% concentration and the seeds were immersed in each solution for 10 minutes. Then, they plated and assessed after seven days. The health test showed that biggest incidences of Aspergillus fumigatus (26 %) and Aspergillus flavus (26 %) were occurred in the seeds of the varieties Ipa 6 and San Marzano, respectively. The fungi A. flavus, A. fumigatus, A. niger, R. stolonifer and Curvularia sp. were detected in quantification of transmission in the seeds of the two tomato varieties. The treatment with basil extract resulted in the least fungus incidence in the transmission quantification of ‘San Marzano’ tomato seeds, while on Ipa 6 seeds the eucalyptus treatment performed better. The interference of treatments was not observed in tomato seed germination. However, there was decrease in incident of pathogens in seeds treated with the plant extracts and different effects was observed based on type and species of the pathogen. |
| Databáze: | OpenAIRE |
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