Field applications of three different classes of known host plant defence elicitors did not suppress infection of Geraldton waxflowwer by Botrytis cinerea

Dinh, S. -Q., Joyce, D. C., Irving, D. E. and Wearing, A. H. (2007) Field applications of three different classes of known host plant defence elicitors did not suppress infection of Geraldton waxflowwer by Botrytis cinerea. Australasian Plant Pathology, 36 2: 142-148. doi:10.1071/AP07001


Author Dinh, S. -Q.
Joyce, D. C.
Irving, D. E.
Wearing, A. H.
Title Field applications of three different classes of known host plant defence elicitors did not suppress infection of Geraldton waxflowwer by Botrytis cinerea
Journal name Australasian Plant Pathology   Check publisher's open access policy
ISSN 0815-3191
Publication date 2007
Sub-type Article (original research)
DOI 10.1071/AP07001
Volume 36
Issue 2
Start page 142
End page 148
Total pages 7
Place of publication Australia
Publisher CSIRO Publishing
Collection year 2008
Language eng
Subject 300304 Post Harvest Technologies
620209 Ornamentals, Australian natives and nursery plants
C1
Abstract Ethylene-mediated flower abscission caused by Botrytis infection afflicts cut Geraldton waxflower stems. Preharvest spray applications of three known host plant defence elicitors, benzothiadiazole (BTH), methyl jasmonate (MeJA) or silicon (Si), were applied to Geraldton waxflower cvv. Mullering Brook and My Sweet Sixteen. Their individual efficacy in postharvest suppression of Botrytis disease developmentwas assessed. Field applications of BTH or Si generally had no significant (P > 0.05) effect on Botrytis disease severity on either cultivar. MeJA sprays did not significantly (P > 0.05) reduce disease severity on cv. Mullering Brook, but slightly and significantly (P < 0.05) suppressed Botrytis on cv. My Sweet Sixteen at concentrations of 500 and 750 mu M MeJA. One Si treatment, 1500 mg SiO2/L, significantly (P < 0.05) reduced. oral abscission on cv. Mullering Brook. Overall, field applications of these three host plant defence elicitor chemicals as spray treatments had little effect on vase life, water uptake and relative fresh weight of the cut flower sprigs. Moreover, they did not suppress Botrytis or associated postharvest. oral abscission in cut Geraldton wax flower flowers.
Keyword Plant Sciences
Chamelaucium uncinatum
Q-Index Code C1
Q-Index Status Confirmed Code

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 11 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Mon, 21 Apr 2008, 08:47:04 EST by Kaye Hunt on behalf of Faculty Of Nat Resources, Agric & Veterinary Sc