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Use of a complexation of tebuconazole with beta-cyclodextrin for controlling foot and crown rot of durum wheat incited by Fusarium culmorum

Balmas, Virgilio and Delogu, Giovanna and Sposito, Simonetta and Rau, Domenico and Migheli, Quirico (2006) Use of a complexation of tebuconazole with beta-cyclodextrin for controlling foot and crown rot of durum wheat incited by Fusarium culmorum. Journal of Agricultural and Food Chemistry, Vol. 54 (2), p. 480-484. eISSN 1520-5118. Article.

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DOI: 10.1021/jf0523014

Abstract

The methodology for the inclusion of tebuconazole (TBC) in beta-cyclodextrin (betaCD), spectroscopic characterization of the inclusion complex, and its activity for the control of a major soilborne disease of wheat caused by Fusarium culmorum are reported. Controlled release measured by chemical shift of the diagnostic protons H3 and H5 of betaCD confirmed stability of the complex at the solid state and in aqueous solution. Greenhouse and field experiments were conducted on durum wheat (Triticum durum cv. Prometeo) sown in substrate or in soil artificially infested with a virulent strain of F. culmorum. The inclusion complex betaCD-TBC, applied as seed dressing in combination or not with carboxymethylcellulose, reduced the disease incidence caused by F. culmorum and improved grain yield, showing effects that were generally comparable to those observed upon application of a commercial formulation of TBC. In the field experiment, only seed treatment with the inclusion complex betaCD-TBC allowed yield that was not different from that obtained from the uninoculated control. These results prove that by the use of the betaCD-TBC complex it is possible to obtain release of TBC and bioavailabilty of the fungicide without compromising its effectiveness.

Item Type:Article
ID Code:722
Status:Published
Refereed:Yes
Uncontrolled Keywords:Tebuconazole, beta-cyclodextrin, inclusion complex, wheat, crown and foot rot, Fusarium culmorum
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/07 Genetica agraria
Area 07 - Scienze agrarie e veterinarie > AGR/12 Patologia vegetale
Divisions:001 Università di Sassari > 02 Centri > Centro di eccellenza interdisc. sviluppo ricerca biotecnologica e studio biodiversità della Sardegna e dell'area mediterranea
001 Università di Sassari > 01 Dipartimenti > Protezione delle piante
002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di chimica biomolecolare, Sassari
Publisher:American Chemical Society
eISSN:1520-5118
Deposited On:18 Aug 2009 10:03

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