Powdery Mildew Control on Greenhouse Tomatoes by Chitosan and Other Selected Substances

Borkowski, Jan; Szwonek, E.

doi:10.17660/actahortic.2004.633.53

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another inducing molecule is chitosan, a derivative of the deacetylation of chitin, considered an efficient biopolymer in the prevention of fungal diseases, since it interferes directly on fungal growth or by activating defenses in plants (Iriti et al, 2011). Borkowski and Szwonek (2004) report that chitosan displays high levels of effectiveness in the control of powdery mildew in tomato plants, (Oidium lycopersicum Cooke & Massee), and when applied on the leaves of barley (Hordeum vulgare L.), it induces resistance against Blumeria graminis (DC.) Speer.…”

mentioning

confidence: 99%

Identificación y alternativas de manejo de la cenicilla del rosal

Serrano

Velasco

Mora‐Herrera

et al. 2015

RMF

View full text Add to dashboard Cite

Resumen. La cenicilla del rosal causada por Podosphaera pannosa afecta todas las partes aéreas de la planta, lo que repercute en su calidad como principal componente de la pérdida económica. En el presente trabajo, se confirmó la identidad del agente causal de la cenicilla en rosa y se evaluó el efecto del fosfito de potasio (K 3 PO 3 ), silicio, quitosano y acetato de dodemorf sobre la incidencia y severidad de la enfermedad, así como, su respuesta en la calidad de tallos florales. Se realizaron dos ensayos (febrero-abril y mayo-julio). Las caracterís-ticas morfométricas y moleculares del agente causal de la cenicilla correspondieron a Podosphaera pannosa. El K 3 PO 3 , silicio y quitosano redujeron Abstract. Rose powdery mildew caused byPodosphaera pannosa affects all aerial parts of the plant, which affects their quality as a major component of economic loss. In this work, the causal agent of powdery mildew of rose was identity and confirmed, the effect of potassium phosphite (K 3 PO 3 ), silicon, chitosan and dodemorph acetate on the incidence and severity of the disease was evaluated, as well as their response in the quality of flower stalks. Two trials (February to April and from May to July) were performed. The morphometric and molecular characteristics of the causal agent corresponded to Podosphaera pannosa. The K 3 PO 3 , silicon and chitosan they reduced incidence and severity compared to the control for both assays, however, only the K 3 PO 3 and silicon, exhibited a control similar to provided by the fungicide dodemorph acetate. The treatment with chitosan increased the length and diameter of the stem and flower bud in contrast to K 3 PO 3 and silicon, but was not significant to the control in both tests. Based on the results, the K 3 PO 3 , silicon and

show abstract

mentioning

confidence: 99%