Antifungal potential of native Trichoderma isolates against Pythium aphanidermatum causing Chilli damping-off
| Autor: | Suchit A. John, Shafaat Ahmad, Kunwar Zeeshan Khan, Manisha Pandey |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology Damping off General Engineering Trichoderma harzianum 04 agricultural and veterinary sciences biology.organism_classification Antimicrobial 01 natural sciences Horticulture chemistry.chemical_compound chemistry Germination Seed treatment Trichoderma Shoot 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Pythium aphanidermatum 010606 plant biology & botany |
| Zdroj: | Annals of Plant Protection Sciences. 27:102 |
| ISSN: | 0974-0163 0971-3573 |
| DOI: | 10.5958/0974-0163.2019.00020.x |
| Popis: | Efficacy of 23 Trichoderma isolates was tested for their ability to reduce the growth of Pythium aphanidermatum causing damping-off of chilli. Studies revealed that locally isolated Trichoderma harzianum showed the highest inhibition (98.1%) followed by T. asperellum (88.8%), T. hamatum (86.6%), T. longibrachiatum (85.2%) and T. koningiopsis (84.3%) and other Trichoderma spp. against the growth of P. aphanidermatum. Highly potential five isolates of Trichoderma were selected for pot culture evaluation for germination %, pre and post-emergence damping-off and growth parameter of chilli seedlings. Among five Trichoderma isolates, seed treatment with T. harzianum at 2×108 CFU ml−1 recorded highest germination (93.7%), shoot length (10.03 cm) and root length (05.65 cm) and was also better in reducing the pre and post emergence damping-off (84.3% and 85.0%, respectively) followed by T. asperellum and rest of the treatments. The antimicrobial volatile compounds isolated from T. harzianum were 6 pentyl-α-Pyrone, Heneicosane, Harzianic acid and 1, 2 Benzene dicarboxylic acid. |
| Databáze: | OpenAIRE |
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