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Reduced volume application of fungicides for the control of onion rots
Year:
1992
Source of publication :
Phytoparasitica
Authors :
Elad, Yigal
;
.
Frankel, Harry
;
.
Grinstein, Avi
;
.
Riven, Yehudit
;
.
Temkin-Gorodeiski, Naomi
;
.
Volume :
20
Co-Authors:
Grinstein, A., Lab. of Pesticide Application Research, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Elad, Y., Dept. of Plant Pathology, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Temkin-Gorodeiski, N., Dept. of Fruit and Vegetable Storage, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Rivan, Y., Lab. of Pesticide Application Research, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Frankel, H., Lab. of Pesticide Application Research, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
293
To page:
300
(
Total pages:
8
)
Abstract:
A survey was conducted to define the fungi population contaminating onion bulbs in Israel during three growing seasons. Significant rots were found to be caused by Botrytis allii, B. cinerea and Aspergillus niger. All the onion stocks tested showed infections, but the severity and identity of the pathogens varied between seasons. B. cinerea and B. allii were the most prevalent fungi in winter-harvested onions. Species of Aspergillus, Penicillium, Fusarium, Rhizopus and Trichoderma were also isolated. The first two were the only species found on summer onions. High fungal contamination had been the main factor affecting an attempt to improve the storage quality and shelf life of the harvested bulbs. Chemical disinfection using a reduced-volume application (RVA) technique was efficient in controlling the major storage rots (caused by A. niger and B. cinerea) of the bulbs, without the major disadvantages of the dipping method. The rate of control was directly correlated with the cover density of the deposited fungicide, but not with the amount deposited. The RVA technique should enable prolongation of postharvest shelf life and storability of onion bulbs. © 1992 Springer Science + Business Media B.V.
Note:
Related Files :
Allium cepa
Botrytis allii
Botrytis cinerea
onion
protectant fungicides
RVA
shelf life
storage rots
Show More
Related Content
More details
DOI :
10.1007/BF02980850
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
22782
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:54
Scientific Publication
Reduced volume application of fungicides for the control of onion rots
20
Grinstein, A., Lab. of Pesticide Application Research, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Elad, Y., Dept. of Plant Pathology, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Temkin-Gorodeiski, N., Dept. of Fruit and Vegetable Storage, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Rivan, Y., Lab. of Pesticide Application Research, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Frankel, H., Lab. of Pesticide Application Research, ARO, The Volcani Center, Bet Dagan, 50250, Israel
Reduced volume application of fungicides for the control of onion rots
A survey was conducted to define the fungi population contaminating onion bulbs in Israel during three growing seasons. Significant rots were found to be caused by Botrytis allii, B. cinerea and Aspergillus niger. All the onion stocks tested showed infections, but the severity and identity of the pathogens varied between seasons. B. cinerea and B. allii were the most prevalent fungi in winter-harvested onions. Species of Aspergillus, Penicillium, Fusarium, Rhizopus and Trichoderma were also isolated. The first two were the only species found on summer onions. High fungal contamination had been the main factor affecting an attempt to improve the storage quality and shelf life of the harvested bulbs. Chemical disinfection using a reduced-volume application (RVA) technique was efficient in controlling the major storage rots (caused by A. niger and B. cinerea) of the bulbs, without the major disadvantages of the dipping method. The rate of control was directly correlated with the cover density of the deposited fungicide, but not with the amount deposited. The RVA technique should enable prolongation of postharvest shelf life and storability of onion bulbs. © 1992 Springer Science + Business Media B.V.
Scientific Publication
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