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פותח על ידי קלירמאש פתרונות בע"מ -
Alternaria diseases of citrus - Novel pathosystems
Year:
2003
Source of publication :
Phytopathologia Mediterranea
Authors :
סולל, צבי
;
.
Volume :
42
Co-Authors:
Timmer, L.W., Institute of Food and Agricultural Sciences, Citrus Research and Education Center, Department of Plant Pathology, University of Florida, Lake Alfred, FL 33850, United States
Peever, T.L., Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, United States
Solel, Z., Department of Plant Pathology, Agricultural Research Organization, The Volcani Center, Bet Dagan 50250, Israel
Akimitsu, K., Laboratory of Plant Pathology, Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
Facilitators :
From page:
99
To page:
112
(
Total pages:
14
)
Abstract:
Citrus is affected by four diseases caused by Alternaria spp. Brown spot of tangerines, leaf spot of rough lemon, postharvest black rot of fruit occur widely in citrus areas of the world and are caused by different pathotypes of A. alternata. Mancha foliar occurs only on Mexican lime in western Mexico and is caused by A. limicola. Tangerine and rough lemon pathotypes produce host-specific toxins that affect membranes and respiration, respectively. Black rot is always associated with wounds and is caused by most citrus-associated isolates of A. alternata that produce endopolygalacturonase. Alternaria brown spot is a serious disease of susceptible tangerines and their hybrids in semi-arid Mediterranean climates as well as in more humid areas. Conidia, produced on lesions on mature and senescent leaves and stems under humid conditions, are dispersed by wind, and infect all juvenile tissues of susceptible cultivars when temperature and leaf wetness conditions are favorable. Commercially acceptable cultivars resistant to brown spot are being developed. Disease severity can be reduced by planting disease-free nursery stock on wider spacings, pruning tree skirts, and reducing irrigation and nitrogen fertilization. However, fungicides such as dithiocarbamates, triazoles, strobilurins, iprodione, or copper fungicides are used in most areas for disease control. A disease-forecasting model, the Alter-Rater, has been developed in Florida to assist in timing fungicide sprays.
Note:
Related Files :
Alter-Rater
Alternaria
Alternaria limicola
Citrus jambhiri
Citrus limon
Citrus reticulata
Disease models
toxins
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
סקירה
;
.
Language:
אנגלית
Editors' remarks:
ID:
18496
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:22
Scientific Publication
Alternaria diseases of citrus - Novel pathosystems
42
Timmer, L.W., Institute of Food and Agricultural Sciences, Citrus Research and Education Center, Department of Plant Pathology, University of Florida, Lake Alfred, FL 33850, United States
Peever, T.L., Department of Plant Pathology, Washington State University, Pullman, WA 99164-6430, United States
Solel, Z., Department of Plant Pathology, Agricultural Research Organization, The Volcani Center, Bet Dagan 50250, Israel
Akimitsu, K., Laboratory of Plant Pathology, Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
Alternaria diseases of citrus - Novel pathosystems
Citrus is affected by four diseases caused by Alternaria spp. Brown spot of tangerines, leaf spot of rough lemon, postharvest black rot of fruit occur widely in citrus areas of the world and are caused by different pathotypes of A. alternata. Mancha foliar occurs only on Mexican lime in western Mexico and is caused by A. limicola. Tangerine and rough lemon pathotypes produce host-specific toxins that affect membranes and respiration, respectively. Black rot is always associated with wounds and is caused by most citrus-associated isolates of A. alternata that produce endopolygalacturonase. Alternaria brown spot is a serious disease of susceptible tangerines and their hybrids in semi-arid Mediterranean climates as well as in more humid areas. Conidia, produced on lesions on mature and senescent leaves and stems under humid conditions, are dispersed by wind, and infect all juvenile tissues of susceptible cultivars when temperature and leaf wetness conditions are favorable. Commercially acceptable cultivars resistant to brown spot are being developed. Disease severity can be reduced by planting disease-free nursery stock on wider spacings, pruning tree skirts, and reducing irrigation and nitrogen fertilization. However, fungicides such as dithiocarbamates, triazoles, strobilurins, iprodione, or copper fungicides are used in most areas for disease control. A disease-forecasting model, the Alter-Rater, has been developed in Florida to assist in timing fungicide sprays.
Scientific Publication
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