The effect of 1.5% v/v Ca-lignosulphonate (Ca-Ls) amendment to two different organic substrates on the viability of Sclerotinia sclerotiorum sclerotia was investigated. Sclerotia were buried in Ca-Ls amended substrates for 30 days. Non amended substrates and sterile sand were used as controls. The viability of sclerotia recovered from organic substrates was reduced by 50-42% compared to controls. The Ca-Ls enhanced the activity of the indigenous mycoparasitic fungi Fusarium oxysporum, Mucor spp and Trichoderma spp. Therefore the biocontrol ability of Ca-Ls against sclerotia was due to the stimulation of microbial activity and therefore it is strictly dependent on the microbial composition of the substrate.
Ca-Lignosulphonate and sclerotial viability of Sclerotinia sclerotiorum / Montanari M.; Innocenti G.. - In: PHYTOPATHOLOGIA MEDITERRANEA. - ISSN 0031-9465. - ELETTRONICO. - 50:3(2011), pp. 384-391. [10.14601/Phytopathol_Mediterr-9348]
Ca-Lignosulphonate and sclerotial viability of Sclerotinia sclerotiorum
INNOCENTI, GLORIA
2011
Abstract
The effect of 1.5% v/v Ca-lignosulphonate (Ca-Ls) amendment to two different organic substrates on the viability of Sclerotinia sclerotiorum sclerotia was investigated. Sclerotia were buried in Ca-Ls amended substrates for 30 days. Non amended substrates and sterile sand were used as controls. The viability of sclerotia recovered from organic substrates was reduced by 50-42% compared to controls. The Ca-Ls enhanced the activity of the indigenous mycoparasitic fungi Fusarium oxysporum, Mucor spp and Trichoderma spp. Therefore the biocontrol ability of Ca-Ls against sclerotia was due to the stimulation of microbial activity and therefore it is strictly dependent on the microbial composition of the substrate.File | Dimensione | Formato | |
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