Seasonal Changes in Extent of Colonization of Citrus Root Tissue by Phytophthora citrophthora and P. parasitica

Persistent Link:
http://hdl.handle.net/10150/215750
Title:
Seasonal Changes in Extent of Colonization of Citrus Root Tissue by Phytophthora citrophthora and P. parasitica
Author:
Matheron, M.; Matejka, J.
Issue Date:
Jan-1991
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Citrus Report
Abstract:
For 24 consecutive months, root pieces were collected from field -grown Lisbon lemon trees established on Citrus aurantium (sour orange), C. jambhiri (rough lemon), and C. volkameriana rootstocks. Root segments were wounded, inoculated with Phytophthora citrophthora or P. parasitica, and incubated for 96 hr in moist chambers. Smaller lesions developed during Jan -Feb than during Jul-Oct on root pieces of all tested rootstocks inoculated with P. citrophthora as well as root pieces of C aurantium inoculated with P. parasitica. Apparently there is a seasonal variation in the susceptibility of citrus rootstocks to colonization by Phytophthora. This information could be useful for more effective timing of fungicide applications.
Keywords:
Agriculture -- Arizona; Citrus fruits -- Arizona; Citrus fruits -- Diseases
Series/Report no.:
370085; Series P-85

Full metadata record

DC FieldValue Language
dc.titleSeasonal Changes in Extent of Colonization of Citrus Root Tissue by Phytophthora citrophthora and P. parasiticaen_US
dc.contributor.authorMatheron, M.en_US
dc.contributor.authorMatejka, J.en_US
dc.date.issued1991-01-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCitrus Reporten_US
dc.description.abstractFor 24 consecutive months, root pieces were collected from field -grown Lisbon lemon trees established on Citrus aurantium (sour orange), C. jambhiri (rough lemon), and C. volkameriana rootstocks. Root segments were wounded, inoculated with Phytophthora citrophthora or P. parasitica, and incubated for 96 hr in moist chambers. Smaller lesions developed during Jan -Feb than during Jul-Oct on root pieces of all tested rootstocks inoculated with P. citrophthora as well as root pieces of C aurantium inoculated with P. parasitica. Apparently there is a seasonal variation in the susceptibility of citrus rootstocks to colonization by Phytophthora. This information could be useful for more effective timing of fungicide applications.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCitrus fruits -- Arizonaen_US
dc.subjectCitrus fruits -- Diseasesen_US
dc.identifier.urihttp://hdl.handle.net/10150/215750-
dc.relation.ispartofseries370085en_US
dc.relation.ispartofseriesSeries P-85en_US
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