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Effect of Egyptian broomrape (Orobanche aegyptiaca) seed-burial depth on parasitism dynamics and chemical control in tomato
Year:
2007
Source of publication :
Weed Science
Authors :
Achdari, Guy
;
.
Eizenberg, Hanan
;
.
Hershenhorn, Joseph
;
.
Landa, Tal
;
.
Roichman, Asia
;
.
Volume :
55
Co-Authors:
Eizenberg, H., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Lande, T., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Achdari, G., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Roichman, A., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Hershenhorn, J., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Facilitators :
From page:
152
To page:
156
(
Total pages:
5
)
Abstract:

Broomrapes (Orobanche spp.) are chlorophyll-lacking root parasites of many dicotyledonous species that cause severe damage to vegetables and field crops worldwide. Egyptian broomrape is common throughout Israel, where it parasitizes a wide range of crops. The main damage caused by this parasite is to processing tomatoes. The objectives of this study were to determine (1) the relationship between the parasitism process on tomato roots and Egyptian broomrape seed depth, and (2) the effect of herbicide application on Egyptian broomrape control at depths of 0 to 30 cm. The study was conducted in controlled conditions in 25-L pots containing soil that was artificially infested with Egyptian broomrape seeds. Seeds (1-cm layer) were infested at soil surface and at depths of 6, 12, 18, 24, and 30 cm. Sulfosulfuron was applied PRE to Egyptian broomrape shoots, 14 and 42 d after tomato planting. Egyptian broomrape emergence was highly correlated to the depth of the seed infestation: the deeper the seeds were buried, the more pronounced the delay in Egyptian broomrape emergence. A four-parameter sigmoid equation was found that describes the relationship between Egyptian broomrape parasitism and seed depth. No Egyptian broomrape shoots were observed aboveground when sulfosulfuron was applied on tomato foliage. However, live and dead attachments were observed at different levels in all seed-depth treatments. No significant difference in the efficacies of sulfosulfuron at rates of 37.5 and 75 ai ha was observed at depths of 6, 12, and 18 cm. The best control was obtained at a depth of 6 cm at both sulfosulfuron rates. At depths of 24 and 30 cm, no broomrape control was achieved at 37.5 ai g ha-1 sulfosulfuron, and only low control efficacy was obtained at 75 ai g ha-1. Nomenclature: Sulfosulfuron; Egyptian broomrape, Orobanche aegyptiaca Pers. ORAAE; tomato, Lycopersicon esculentum Mill.

Note:
Related Files :
chemical control
Orobanche
Orobanche control
Parasitic weeds
vegetable
Weed
weed control
Show More
Related Content
More details
DOI :
10.1614/WS-06-135
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
21435
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:44
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Scientific Publication
Effect of Egyptian broomrape (Orobanche aegyptiaca) seed-burial depth on parasitism dynamics and chemical control in tomato
55
Eizenberg, H., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Lande, T., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Achdari, G., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Roichman, A., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Hershenhorn, J., Department of Phytopathology and Weed Research, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30095, Israel
Effect of Egyptian broomrape (Orobanche aegyptiaca) seed-burial depth on parasitism dynamics and chemical control in tomato

Broomrapes (Orobanche spp.) are chlorophyll-lacking root parasites of many dicotyledonous species that cause severe damage to vegetables and field crops worldwide. Egyptian broomrape is common throughout Israel, where it parasitizes a wide range of crops. The main damage caused by this parasite is to processing tomatoes. The objectives of this study were to determine (1) the relationship between the parasitism process on tomato roots and Egyptian broomrape seed depth, and (2) the effect of herbicide application on Egyptian broomrape control at depths of 0 to 30 cm. The study was conducted in controlled conditions in 25-L pots containing soil that was artificially infested with Egyptian broomrape seeds. Seeds (1-cm layer) were infested at soil surface and at depths of 6, 12, 18, 24, and 30 cm. Sulfosulfuron was applied PRE to Egyptian broomrape shoots, 14 and 42 d after tomato planting. Egyptian broomrape emergence was highly correlated to the depth of the seed infestation: the deeper the seeds were buried, the more pronounced the delay in Egyptian broomrape emergence. A four-parameter sigmoid equation was found that describes the relationship between Egyptian broomrape parasitism and seed depth. No Egyptian broomrape shoots were observed aboveground when sulfosulfuron was applied on tomato foliage. However, live and dead attachments were observed at different levels in all seed-depth treatments. No significant difference in the efficacies of sulfosulfuron at rates of 37.5 and 75 ai ha was observed at depths of 6, 12, and 18 cm. The best control was obtained at a depth of 6 cm at both sulfosulfuron rates. At depths of 24 and 30 cm, no broomrape control was achieved at 37.5 ai g ha-1 sulfosulfuron, and only low control efficacy was obtained at 75 ai g ha-1. Nomenclature: Sulfosulfuron; Egyptian broomrape, Orobanche aegyptiaca Pers. ORAAE; tomato, Lycopersicon esculentum Mill.

Scientific Publication
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