Effect of Trichoderma harzianum and Pseudomonas fluorescens on the Enhancement of Drought Tolerance and Plant Growth in Tomato
P. Anbazhagan, Ramji Singh, H. S. Viswanath, Akash Pandey, Ankit Kumar Singh
International Research Journal of Pure and Applied Chemistry · pp. 18–27 · Published 10 Dec 2020
10.9734/irjpac/2020/v21i2330299Abstract
In the present study, different isolates of Trichoderma harzianum and Pseudomonas fluorescens were evaluated for the induction ofdrought tolerance and growth promotion in tomato plants. Four isolates of Pseudomonas fluorescens viz Pf 2 Pf 4, Pf 6 and Pf 28 and three isolates of Trichoderma harzianum viz. TH 08, IRRI 1 and TH 26 were evaluated by using seed biopriming as well as seedling/transplanted root dip method against drought stress and for their effect onplant growth promotion. Parametersincludingdrought tolerance capacity, water requirement, shoot length, root length, plant height, and chlorophyll content were recorded inall the treatments of different isolates along with the untreated control.Among the two methods of bioinoculation, seed biopriming was found more effective to transplanted root dip in all the treatments of isolates of Trichoderma harzianum and Pseudomonas fluorescens. Among all the isolates, isolate IRRI 1 of Trichoderma harzianum was found highly effective in reducing the water stressbyincreasing thecumulative mean water stresstolerance duration of both methods of inoculation up to 14.83 days after the last irrigation with least mean water requirement of 13.92litres followed by isolate Pf28 of Pseudomonas fluorescens with mean water stress tolerance of 13.66 days and water requirement of 14.25 litres compared to the untreated control plants with least tolerance ofonly 10.66 days and highest water requirement of 16.25litres. Maximum cumulative mean shoot growth, root growth and chlorophyll content ofboth methods of inoculation of 76.25cm, 28.33cm and 41.20 SPAD units respectively were also recorded with IRRI 1 isolate followed by Pf 28 isolate with 67.17cm, 19cm, and 35.46 SPAD units respectively. Treatment with all other isolates of Trichoderma harzianum and Pseudomonas fluorescens also showed better water stress tolerance, less water consumption, increased shoot length, root length and chlorophyll content compared to the untreated control tomato plants.
References (7)
- 1 Biomass allocation to leaves, stems and roots: meta‐analyses of interspecific variation and environmental control [DOI]
- 2 A Review of Evidence on the Control of Shoot: Root Ratio, in Relation to Models [DOI]
- 3 Arbuscular mycorrhizal influence on leaf water potential, solute accumulation, and oxidative stress in soybean plants subjected to drought stress [DOI]
- 4 Role of Trichoderma harzianum in mitigating NaCl stress in Indian mustard (Brassica juncea L) through antioxidative defense system [DOI]
- 5 Growth stimulation and induction of systemic resistance in tomato against early and late blight by Bacillus subtilis OTPB1 or Trichoderma harzianum OTPB3 [DOI]
- 6 Biochemical and physiological responses of rice (Oryza sativa L.) as influenced by Trichoderma harzianum under drought stress [DOI]
- 7 Trichoderma harzianum enhances the production of nematicidal compounds in vitro and improves biocontrol of Meloidogyne javanica by Pseudomonas fluorescens in tomato [DOI]
Cited by 8
Shifa Shaffique, Muhammad Imran, Sang-Mo Kang · Frontiers in Plant Science · 2023
Sonam Singh, Deepranjan Sarkar, S. Rakesh · Agronomy · 2023
S. Soundara Rajan, T. Sivakumar, P. Balabaskar · Journal of Biological Control · 2023
Víctor M. Marín-Campos, Joel Pineda-Pineda, Langen Corlay-Chee · Archives of Agronomy and Soil Science · 2025
Showing 4 of 8 known citations — external sources report more than can currently be individually listed.
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