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The Role of Macrophomina phaseolina in Mortality of Pine Seedlings in Forest Nurseries
Year:
1985
Source of publication :
Journal of Phytopathology
Authors :
Madar, Zion
;
.
Volume :
112
Co-Authors:
Reuveni, R., Agricultural Research Organization, Division of Plant Pathology, Newe-Yaàr Experiment Station, Haifa, 31-999, Israel
Madar, Z., Agricultural Research Organization, Division of Plant Pathology, Newe-Yaàr Experiment Station, Haifa, 31-999, Israel
Facilitators :
From page:
161
To page:
164
(
Total pages:
4
)
Abstract:
Mortality of pine seedlings has been recently become widespread in forest nurseries. Disease symptoms are yellowing of the needles, followed by wilting and death of the seedlings. The fungus Macrophomina phaseolina (Tassi) Goid. was isolated from roots of diseased seedlings of Pinus sp. seedlings (40—75 %). The incidence of M. phaseolina in roots was correlated with the percentage of dead pine seedling in various forest nurseries. Other soil fungi isolated from infected roots are Fusarium spp. Growth chamber inoculation demonstrated the pathogenicity of the M. phaseolina isolate, while the Fusarium spp. isolates showed a low level of pathogenicity. The effect of suboptimal conditions, such as water and temperature stress with regard to M. phaseolina pathogenicity, are discussed. Bei einem in Ausbreitung begriffenen Keimlingssterben verschiedener Föhrenarten (Symptome: Vergilben der Nadeln, Welken und Tod der Pflänzchen) wurde aus kranken Pflanzen häufig (40—75 %) Macrophomina phaseolina isoliert. In verschiedenen Forstgärten war das Auftreten des Pilzes mit dem Anteil abgestorbener Sämlinge korreliert. Die Pathogenität des Pilzes wurde in Klimakammern bestätigt. Fusarium‐Arten wurden aus kranken Pflanzen ebenfalls isoliert, erwiesen sich jedoch als wenig pathogen. Die Bedeutung suboptimaler Bedingungen (Wasser‐ und Temperaturstreβ) für die Pathogenität von M. phaseolina werden diskutiert. 1985 Paul Parey Scientific Publishers, Berlin and Hamburg
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DOI :
10.1111/j.1439-0434.1985.tb04824.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19463
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:29
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Scientific Publication
The Role of Macrophomina phaseolina in Mortality of Pine Seedlings in Forest Nurseries
112
Reuveni, R., Agricultural Research Organization, Division of Plant Pathology, Newe-Yaàr Experiment Station, Haifa, 31-999, Israel
Madar, Z., Agricultural Research Organization, Division of Plant Pathology, Newe-Yaàr Experiment Station, Haifa, 31-999, Israel
The Role of Macrophomina phaseolina in Mortality of Pine Seedlings in Forest Nurseries
Mortality of pine seedlings has been recently become widespread in forest nurseries. Disease symptoms are yellowing of the needles, followed by wilting and death of the seedlings. The fungus Macrophomina phaseolina (Tassi) Goid. was isolated from roots of diseased seedlings of Pinus sp. seedlings (40—75 %). The incidence of M. phaseolina in roots was correlated with the percentage of dead pine seedling in various forest nurseries. Other soil fungi isolated from infected roots are Fusarium spp. Growth chamber inoculation demonstrated the pathogenicity of the M. phaseolina isolate, while the Fusarium spp. isolates showed a low level of pathogenicity. The effect of suboptimal conditions, such as water and temperature stress with regard to M. phaseolina pathogenicity, are discussed. Bei einem in Ausbreitung begriffenen Keimlingssterben verschiedener Föhrenarten (Symptome: Vergilben der Nadeln, Welken und Tod der Pflänzchen) wurde aus kranken Pflanzen häufig (40—75 %) Macrophomina phaseolina isoliert. In verschiedenen Forstgärten war das Auftreten des Pilzes mit dem Anteil abgestorbener Sämlinge korreliert. Die Pathogenität des Pilzes wurde in Klimakammern bestätigt. Fusarium‐Arten wurden aus kranken Pflanzen ebenfalls isoliert, erwiesen sich jedoch als wenig pathogen. Die Bedeutung suboptimaler Bedingungen (Wasser‐ und Temperaturstreβ) für die Pathogenität von M. phaseolina werden diskutiert. 1985 Paul Parey Scientific Publishers, Berlin and Hamburg
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