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Biological control of rhizoctonia solani by indigenous trichoderma spp. Isolates from palestine
Joint Authors
Barakat, Radwan Mahmud
al-Mahariq, Fadil
Shtayeh, Muhammad S. Ali
al-Misri, Muhammad Rushdi
Source
Hebron University Research Journal : Natural Sciences
Issue
Vol. 3, Issue 1 (31 Jul. 2007), pp.1-15, 15 p.
Publisher
Hebron University Deanship of Scientific Research
Publication Date
2007-07-31
Country of Publication
Palestine (West Bank)
No. of Pages
15
Main Subjects
Topics
Abstract EN
The effect of indigenous Trichoderma isolates against the soil-borne phytopathogen Rhizoctonia solani was investigated in dual culture and bioassay on bean plants.
Application of the bioagent isolates as a conidial suspension (3*107) greatly reduced the disease index of bean plants caused by R.
solani in different rates and the most effective Trichoderma harzianum isolate (Jn14) reduced the disease by 65%.
In dual culture, the T.
harzianum (Jn14) overgrew the pathogen R.
solani in an average of 16.75 mm/day at 30 °C.
In addition, the results showed that T.
harzianum (Jn14) and T.
hamatum (T36) were the most effective isolates at 25°C and inhibited R.
solani mycelial growth by 42% and 78% respectively, due to fungitoxic metabolites production.
The Effect of Trichoderma on bean seedlings growth was obvious; height was nearly doubled (160% -200%), while fresh and dry weights increased by 133% and 217%, respectively.
Germinations of bean seeds in treated soil with Trichoderma isolates occurred about four days earlier than those in untreated soils.
The results revealed however some variation between isolates which was due to genetic variation, mycelium-coiling rate, sporulation rate, fungitoxic metabolites, induced growth response and temperature effect.
American Psychological Association (APA)
Barakat, Radwan Mahmud& al-Mahariq, Fadil& Shtayeh, Muhammad S. Ali& al-Misri, Muhammad Rushdi. 2007. Biological control of rhizoctonia solani by indigenous trichoderma spp. Isolates from palestine. Hebron University Research Journal : Natural Sciences،Vol. 3, no. 1, pp.1-15.
https://search.emarefa.net/detail/BIM-35180
Modern Language Association (MLA)
Barakat, Radwan Mahmud…[et al.]. Biological control of rhizoctonia solani by indigenous trichoderma spp. Isolates from palestine. Hebron University Research Journal : Natural Sciences Vol. 3, no. 1 (2007), pp.1-15.
https://search.emarefa.net/detail/BIM-35180
American Medical Association (AMA)
Barakat, Radwan Mahmud& al-Mahariq, Fadil& Shtayeh, Muhammad S. Ali& al-Misri, Muhammad Rushdi. Biological control of rhizoctonia solani by indigenous trichoderma spp. Isolates from palestine. Hebron University Research Journal : Natural Sciences. 2007. Vol. 3, no. 1, pp.1-15.
https://search.emarefa.net/detail/BIM-35180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 13-15
Record ID
BIM-35180