Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidade Estadual de Maringá
2021
|
| Soggetti: | |
| Accesso online: | https://www.redalyc.org/articulo.oa?id=303067924004 https://www.redalyc.org/journal/3030/303067924004/ https://www.redalyc.org/journal/3030/303067924004/html/ https://www.redalyc.org/journal/3030/303067924004/303067924004.epub https://www.redalyc.org/journal/3030/303067924004/movil |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
Sommario:
- Control of the fungi Lasiodiplodia theobromae, the causal agent of dieback, in cv. syrah grapevines Carine Rusin Fábio Rossi Cavalcanti Patrícia Carla Giloni de Lima Cacilda Márcia Duarte Rios Faria Marcus André Kurtz Almança Renato Vasconcelos Botelho Agrociencias pruning protection biological control Trichoderma harzianum Grapevine trunk diseases are among the most important limiting factors of worldwide viticulture. In this context, we aimed to verify the effect of chemical fungicides, biological agents and plant extracts on the control of Lasiodiplodia theobromae in pruning wounds and their physiological effects in cv. Syrah grapevines. Plant extracts (clove, cinnamon, garlic, rosemary and lemongrass), commercial fungicides (difeconazole, tebuconazole, mancozeb, sulfur, pyraclostrobin, fosetyl-Al, and azoxystrobin), chitosan, Trichoderma harzianum and Bacillus subtilis were used for the in vitro trials. The protection of pruning wounds in the potted vines was studied using fosetyl-Al, tebuconazole, Trichoderma harzianum, Bacillus subtilis, garlic extract and clove extract. The experiments were carried out through two vegetative cycles: 2015/2016 and 2016/2017. The length of wood discoloration, pathogen re-isolation percentage, fresh mass of the pruning material, peroxidase activity, fluorescence, chlorophyll index, phenological stages, shoot length and leaf area were evaluated. The treatments with clove, garlic extract, tebuconazole, pyraclostrobin, mancozeb, fosetyl-Al and B. subtilis reduced mycelial growth by more than 90%. In the grapevines, the use of T. harzianum decreased the re-isolation of L. theobromae, but no differences were verified for the other plant evaluations. We concluded that the use of T. harzianum would be a potential option for wound protection without altering the physiological aspects of cv. Syrah grapevines. 2021 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303067924004 https://www.redalyc.org/journal/3030/303067924004/ https://www.redalyc.org/journal/3030/303067924004/html/ https://www.redalyc.org/journal/3030/303067924004/303067924004.epub https://www.redalyc.org/journal/3030/303067924004/movil 10.4025/actasciagron.v43i1.44785 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Vol.43