נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Frateuria defendens reduces yellows disease symptoms in grapevine under field conditions
Year:
2021
Source of publication :
Journal of Grapevine Research
Authors :
Bahar, Ofir
;
.
Mozes-Daube, Netta
;
.
Zchori-Fein, Einat
;
.
Volume :
60
Co-Authors:
  • V. Naor
  • T. Zahavi
  • R. Barkai 
  • N. Weiss 
  • N. Mozes-Daube 
  • O. Dror
  • C. Finkelstein 
  • S. Aharon 
  • O. Bahar 
  • E. Zchori-Fein
  • L. Iasur-Kruh
Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Yellows diseases in grapevine, associated with the presence of different phytoplasmas, are a major problem for growers, with no environmentally friendly means of control. Frateuria defendens (Frd), a bacterium with endophytic traits, has been shown to reduce yellows symptoms in grapevine plantlets under laboratory conditions. The objective of this study was to test whether similar effects could be achieved under field conditions. A trial was conducted in a heavily infected vineyard in northern Israel for two consecutive years. A suspension of Frd cells (108·mL-1) was applied bi-weekly by foliar spray on grapevines from bud burst to leaf senescence. Frd penetrated the leaves during the growing period but not during leaf senescence and could be detected in the leaves by PCR analysis up to 14 days post-spraying. The rate of yellows infection was lower in the treated grapevines compared to its increase in untreated grapevines and the yield of symptomatic plants was improved by 10 to 20 %. Taken together, the results suggest Frd acted as a biological control agent in vineyards under the experimental conditions tested.

Note:
Related Files :
Frateuria defendens
Grapevine
yellows disease
Yellows diseases
Show More
Related Content
More details
DOI :
10.5073/vitis.2021.60.109-117
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
56384
Last updated date:
02/03/2022 17:27
Creation date:
29/09/2021 23:43
You may also be interested in
Scientific Publication
Frateuria defendens reduces yellows disease symptoms in grapevine under field conditions
60
  • V. Naor
  • T. Zahavi
  • R. Barkai 
  • N. Weiss 
  • N. Mozes-Daube 
  • O. Dror
  • C. Finkelstein 
  • S. Aharon 
  • O. Bahar 
  • E. Zchori-Fein
  • L. Iasur-Kruh
Frateuria defendens reduces yellows disease symptoms in grapevine under field conditions

Yellows diseases in grapevine, associated with the presence of different phytoplasmas, are a major problem for growers, with no environmentally friendly means of control. Frateuria defendens (Frd), a bacterium with endophytic traits, has been shown to reduce yellows symptoms in grapevine plantlets under laboratory conditions. The objective of this study was to test whether similar effects could be achieved under field conditions. A trial was conducted in a heavily infected vineyard in northern Israel for two consecutive years. A suspension of Frd cells (108·mL-1) was applied bi-weekly by foliar spray on grapevines from bud burst to leaf senescence. Frd penetrated the leaves during the growing period but not during leaf senescence and could be detected in the leaves by PCR analysis up to 14 days post-spraying. The rate of yellows infection was lower in the treated grapevines compared to its increase in untreated grapevines and the yield of symptomatic plants was improved by 10 to 20 %. Taken together, the results suggest Frd acted as a biological control agent in vineyards under the experimental conditions tested.

Scientific Publication
You may also be interested in