Effect of Borago officinalis extract and plant remains and the bio-agent Chaetomium globosum in reducing okra seed rot and seedlings death caused by Rhizoctonia solani
الباحث الأول:
Salwan A. Zahra Jabbar Allobawi
الباحثين الآخرين:
Nihad. H Mutlag
Bsim M.Ali
Adeeb Kitab Abid Zaid Alshafiee
Laith Hemed K. Al-Hachami
المجلة:
Journal of Pharmaceutical Sciences and Research
تاريخ النشر:
None
مختصر البحث:
Abstract
The objective of the study was to investigate the efficacy of Borago officinalis plant extract in the growth and pathogenesis of Rhizoctonia solani causing seeds rot and seedlings death of okra, and to evaluate the effectiveness of the bio…
Abstract
The objective of the study was to investigate the efficacy of Borago officinalis plant extract in the growth and pathogenesis of Rhizoctonia solani causing seeds rot and seedlings death of okra, and to evaluate the effectiveness of the bio-control fungus Chaetomium globosum in suppressing pathogenic R. solani where was used alone or incorporated with Borage plant remain powder at different rate in potting soil. Pathogenicity tests showed that R. solani caused completely seed rot and no seedlings at all, while germination rate was 96.6% from seeds inoculated with Ch. globosum.
The in vitro experiment showed that the culture media treated with Borage extracts at all tested concentrations (25, 50, 75 and 100%) were significantly effective and reduced R. solani radial growth compared to that of the control (PDA). Adversely, these media at same extract concentrations resulted in significantly higher radial growth of Ch. globosum compared to its growth on the control media.
The potting soil incorporation with Borage plant remain powder at all the ratios significantly increased the okra growth indicators, but did not affect R. solani pathogenicity. However, Borage remain incorporated soil did increase the effectiveness of the bio-controlling Ch. globosum in reducing the incidence of the pathogenic R. solani and resulted in much higher growth parameters values compared to all the other treatments.
