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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Overwintering and epidemiology of Puccinia dracunculina, the causal agent of rust in open tarragon fields
Year:
2013
Source of publication :
Plant Pathology
Authors :
וינטל, חיים
;
.
כהן, רוני
;
.
שטיינברג, דני
;
.
Volume :
62
Co-Authors:
Cohen, R., Department of Plant Pathology and Weed Science, Agricultural Research Organization, Newe Yaar Research Center, Ramat Yishay 30093, Israel
Anikster, Y., Institute for Cereal Crops Improvement, Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
Vintal, H., Department of Plant Pathology and Weed Science, Agricultural Research Organization, Newe Yaar Research Center, Ramat Yishay 30093, Israel
Manisterski, J., Institute for Cereal Crops Improvement, Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
Shtienberg, D., Department of Plant Pathology and Weed Science, Agricultural Research Organization, Newe Yaar Research Center, Ramat Yishay 30093, Israel
Facilitators :
From page:
41
To page:
48
(
Total pages:
8
)
Abstract:
Rust, caused by Puccinia dracunculina, is the main foliar disease of open-field tarragon (Artemisia dracunculus) crops in Israel. As not much is known about the biology or epidemiology of this pathogen, the long-term objective of the current study was to accumulate the knowledge needed to develop an effective, environmentally friendly means of adequately managing the disease. Puccinia dracunculina is an autoecious brachy-form pathogen, but it is not known whether the life cycle is completed under field conditions in Israel. Field observations and greenhouse studies revealed that although the telial stage is produced, the pathogen overwinters in the uredinial stage. In vitro experiments were used to quantify the temperature and wetness requirements for urediniospore germination and to calculate the daily duration of conducive weather (DDCW); DDCW was defined as the number of hours during which temperature ranged between 15 and 25°C and RH was >90%. Cumulative DDCW values (CDDCW) were a good predictor of disease under natural conditions in two growing seasons. Disease onset occurred when CDDCW values reached a level of 10 and the relationship between log CDDCW values and season-long severity values (in logit) was highly significant, explaining 90·6% of the variation. © 2012 BSPP.
Note:
Related Files :
Artemisia dracunculus
epidemiology
germination
growing season
host-pathogen interaction
Israel
life cycle
weather
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1365-3059.2012.02630.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
30209
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:52
You may also be interested in
Scientific Publication
Overwintering and epidemiology of Puccinia dracunculina, the causal agent of rust in open tarragon fields
62
Cohen, R., Department of Plant Pathology and Weed Science, Agricultural Research Organization, Newe Yaar Research Center, Ramat Yishay 30093, Israel
Anikster, Y., Institute for Cereal Crops Improvement, Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
Vintal, H., Department of Plant Pathology and Weed Science, Agricultural Research Organization, Newe Yaar Research Center, Ramat Yishay 30093, Israel
Manisterski, J., Institute for Cereal Crops Improvement, Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
Shtienberg, D., Department of Plant Pathology and Weed Science, Agricultural Research Organization, Newe Yaar Research Center, Ramat Yishay 30093, Israel
Overwintering and epidemiology of Puccinia dracunculina, the causal agent of rust in open tarragon fields
Rust, caused by Puccinia dracunculina, is the main foliar disease of open-field tarragon (Artemisia dracunculus) crops in Israel. As not much is known about the biology or epidemiology of this pathogen, the long-term objective of the current study was to accumulate the knowledge needed to develop an effective, environmentally friendly means of adequately managing the disease. Puccinia dracunculina is an autoecious brachy-form pathogen, but it is not known whether the life cycle is completed under field conditions in Israel. Field observations and greenhouse studies revealed that although the telial stage is produced, the pathogen overwinters in the uredinial stage. In vitro experiments were used to quantify the temperature and wetness requirements for urediniospore germination and to calculate the daily duration of conducive weather (DDCW); DDCW was defined as the number of hours during which temperature ranged between 15 and 25°C and RH was >90%. Cumulative DDCW values (CDDCW) were a good predictor of disease under natural conditions in two growing seasons. Disease onset occurred when CDDCW values reached a level of 10 and the relationship between log CDDCW values and season-long severity values (in logit) was highly significant, explaining 90·6% of the variation. © 2012 BSPP.
Scientific Publication
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