Login

Join for Free!
114687 members
table of contents table of contents

A study was carried out to determine the effect of these substances …


Biology Articles » Botany » Gray mold severity and vase life of rose buds after pulsing with citric acid, salicylic acid, calcium sulfate, sucrose and silver thiosulfate

Abstract
- Gray mold severity and vase life of rose buds after pulsing with citric acid, salicylic acid, calcium sulfate, sucrose and silver thiosulfate

Gray mold severity and vase life of rose buds after pulsing with citric acid, salicylic acid, calcium sulfate, sucrose and silver thiosulfate

Guy de CapdevilleI; Luiz A. MaffiaII, *; Fernando L. FingerIII; Ulisses G. BatistaII

IEmbrapa Recursos Genéticos e Biotecnologia, CEP 70770-900 Brasília, DF, Tel.: +11 55 61 4484707; Fax: +11 55 61 3403658, E-mail: guy@cenargen.embrapa.br
IIDepartamentos de Fitopatologia
IIIFitotecnia, Universidade Federal de Viçosa, CEP 36570-000 Viçosa, MG

Gray mold of roses (Rosa hibrida) caused by Botrytis cinerea requires many management strategies for its control. The effect of pulsing rose cv. Kiss with solutions of citric acid, salicylic acid, sucrose, calcium sulfate, and silver thiosulfate (STS) on disease severity and vase life of the flowers was evaluated. The solutions were applied to cut stems at different stages of harvest, the variation in the opening stage of harvest did not affect the results. Pulsing with STS reduced the values of area under the disease progress curve (AUDPC) and of severity of disease by 15% and 55%, respectively, and increased the vase life of the flowers by 20%. Calcium sulfate consistently reduced AUDPC by 66% and maximum severity by 88%, and increased vase life of the flowers by 37%. Therefore, pulsing rose buds with solutions of STS and calcium sulfate is potentially useful in reducing losses due to gray mold after harvest and in extending the vase life.

Additional keywords: cut flowers, Rosa hybrida, Botrytis, Calcium, Silver thiosulfate, Postharvest.

Fitopatol. bras. vol.28 no.4  Brasília July/Aug. 2003


rating: 4.25 from 4 votes | updated on: 15 Jun 2007 | views: 6972 |

Rate article:







excellent!bad…