Characterization of plant growth promotingBacillusstrains and their potential as crop protectants againstPhytophthora capsiciin tomato
| Autor: | Anjali Chauhan, C. K. Shirkot, Rashmi Sharma |
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| Rok vydání: | 2015 |
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| Zdroj: | Biological Agriculture & Horticulture. 31:230-244 |
| ISSN: | 2165-0616 0144-8765 |
| DOI: | 10.1080/01448765.2015.1009860 |
| Popis: | Bacillus spp. are well known rhizosphere residents of many crops and usually show plant growth promoting (PGP) activities that include biocontrol capacity against some phytopathogenic fungi. A total of 20 PGP rhizobacterial strains belonging to the genus Bacillus, previously isolated from the rhizosphere of several crops, were evaluated for their efficacy against Phytophthora capsici causing root and crown rot of tomato. These isolates were characterized for their PGP traits and in vitro antibiosis. Based on their in vitro antibiosis, liquid based formulations of four isolates – S21 and S25 from tomato, B6 from apple and A10 from turmeric rhizosphere were used for in planta evaluation against P. capsici under net house conditions singly and in conjoint applications. Liquid based culture of strain S25 was found to be the most promising biocontrol treatment and reduced the disease severity by 83.3%. Conjoint application of four strains also had significant effect in achieving biocontrol efficacy of 66.7%. I... |
| Databáze: | OpenAIRE |
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