Abstract
A study was undertaken to characterize and manage pathogens associated with fruit rot of immature cucumber fruits in greenhouses in Oman. A survey over five growing seasons from 2008 to 2010 in 99 different greenhouses in Oman showed that the disease was prevalent in 91 (92%) greenhouses and resulted in losses of 10 to 60% (avg. 33%) of immature fruits per plant. Incidence of the disease was not found to be affected by growing seasons, which could be attributed to the limited fluctuations in ambient temperatures in greenhouses. Isolations from diseased cucumber fruits yielded Alternaria alternata (isolation frequency = 52%), Fusarium equiseti (40%), Cladosporium tenuissimum (27%), Botrytis cinerea (6%), F. solani (6%), Corynespora cassiicola (3%), Aspergillus spp. (2%), Curvularia sp. (1%) and Bipolaris sp. (1%). With the exception of the Curvularia and Bipolaris species, all other fungi were pathogenic on cucumber fruits, with F. equiseti being the most aggressive, followed by Co. cassiicola, B. cinerea and A. alternata. Cladosporium and Aspergillus spp. were found to be weakly pathogenic. Comparing the efficacy of foliar and soil applications of carbendazim fungicide on fruit rot of cucumber showed that foliar applications significantly reduced fruit rot and increased cucumber yield when compared to soil application or to untreated experimental controls (P
| Original language | English |
|---|---|
| Pages (from-to) | 421-429 |
| Number of pages | 9 |
| Journal | Phytopathologia Mediterranea |
| Volume | 50 |
| Issue number | 3 |
| Publication status | Published - 2011 |
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Keywords
- Aggressiveness
- Gray mold
- ITS rDNA
ASJC Scopus subject areas
- Plant Science
- Horticulture
- Agronomy and Crop Science
Cite this
Occurrence, characterization and management of fruit rot of immature cucumbers under greenhouse conditions in Oman. / Al-Sadi, Abdullah Mohammed; Al-Said, Fahad AlJulanda; Al-Kaabi, Saif Mohammed; Al-Quraini, Suad Mohammed; AL-Mazroui, Safa Said; Al-Mahmooli, Issa Hashil; Deadman, Mike Leonard.
In: Phytopathologia Mediterranea, Vol. 50, No. 3, 2011, p. 421-429.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Occurrence, characterization and management of fruit rot of immature cucumbers under greenhouse conditions in Oman
AU - Al-Sadi, Abdullah Mohammed
AU - Al-Said, Fahad AlJulanda
AU - Al-Kaabi, Saif Mohammed
AU - Al-Quraini, Suad Mohammed
AU - AL-Mazroui, Safa Said
AU - Al-Mahmooli, Issa Hashil
AU - Deadman, Mike Leonard
PY - 2011
Y1 - 2011
N2 - A study was undertaken to characterize and manage pathogens associated with fruit rot of immature cucumber fruits in greenhouses in Oman. A survey over five growing seasons from 2008 to 2010 in 99 different greenhouses in Oman showed that the disease was prevalent in 91 (92%) greenhouses and resulted in losses of 10 to 60% (avg. 33%) of immature fruits per plant. Incidence of the disease was not found to be affected by growing seasons, which could be attributed to the limited fluctuations in ambient temperatures in greenhouses. Isolations from diseased cucumber fruits yielded Alternaria alternata (isolation frequency = 52%), Fusarium equiseti (40%), Cladosporium tenuissimum (27%), Botrytis cinerea (6%), F. solani (6%), Corynespora cassiicola (3%), Aspergillus spp. (2%), Curvularia sp. (1%) and Bipolaris sp. (1%). With the exception of the Curvularia and Bipolaris species, all other fungi were pathogenic on cucumber fruits, with F. equiseti being the most aggressive, followed by Co. cassiicola, B. cinerea and A. alternata. Cladosporium and Aspergillus spp. were found to be weakly pathogenic. Comparing the efficacy of foliar and soil applications of carbendazim fungicide on fruit rot of cucumber showed that foliar applications significantly reduced fruit rot and increased cucumber yield when compared to soil application or to untreated experimental controls (P
AB - A study was undertaken to characterize and manage pathogens associated with fruit rot of immature cucumber fruits in greenhouses in Oman. A survey over five growing seasons from 2008 to 2010 in 99 different greenhouses in Oman showed that the disease was prevalent in 91 (92%) greenhouses and resulted in losses of 10 to 60% (avg. 33%) of immature fruits per plant. Incidence of the disease was not found to be affected by growing seasons, which could be attributed to the limited fluctuations in ambient temperatures in greenhouses. Isolations from diseased cucumber fruits yielded Alternaria alternata (isolation frequency = 52%), Fusarium equiseti (40%), Cladosporium tenuissimum (27%), Botrytis cinerea (6%), F. solani (6%), Corynespora cassiicola (3%), Aspergillus spp. (2%), Curvularia sp. (1%) and Bipolaris sp. (1%). With the exception of the Curvularia and Bipolaris species, all other fungi were pathogenic on cucumber fruits, with F. equiseti being the most aggressive, followed by Co. cassiicola, B. cinerea and A. alternata. Cladosporium and Aspergillus spp. were found to be weakly pathogenic. Comparing the efficacy of foliar and soil applications of carbendazim fungicide on fruit rot of cucumber showed that foliar applications significantly reduced fruit rot and increased cucumber yield when compared to soil application or to untreated experimental controls (P
KW - Aggressiveness
KW - Gray mold
KW - ITS rDNA
UR - http://www.scopus.com/inward/record.url?scp=84857890425&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857890425&partnerID=8YFLogxK
M3 - Article
VL - 50
SP - 421
EP - 429
JO - Phytopathologia Mediterranea
JF - Phytopathologia Mediterranea
SN - 0031-9465
IS - 3
ER -