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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(11): 683-687
DOI: https://doi.org/10.20546/ijcmas.2019.811.082


Efficacy of Plant Extracts and Biocontrol Agents against Root Rot of Tomato Incited by Rhizoctonia solani Kuhn
Vaka Siva Kumar, Dasari Sreevarshini, Sobita Simon and Abhilasha A. Lal
Department of Plant Pathology, Sam Higginbottom University of Agriculture, Technology And Sciences, Prayagraj, Uttar Pradesh, India
*Corresponding author
Abstract:

The present study was planned to evaluate the efficacy of various plant extracts Chenopodium album, Azadirachta indica and Citrus sp. and biocontrol agents Trichoderma viride and Pseudomonas fluorescens against Rhizoctonia solani causing root rot of tomato. Minimum disease incidence and maximum reduction of disease of root rot was observed in Trichoderma viride treatment. Maximum root length (cm) in tomato was recorded at 60 DAT in T1 - Trichoderma viride (23.06 cm), followed by T3 - Azadirachta indica (22.49 cm), T2 - Pseudomonas fluorescens (21.41cm), T5 - Chenopodium album (21.30 cm), T4 - Citrus sp. (20.30 cm), as compared to T7 – Carbendazim (treated) (19.74) and T0 - (untreated checks) (18.13 cm). Maximum shoot length (cm) in tomato was recorded in T1 - Trichoderma viride (53.16 cm), followed by T2 - Pseudomonas fluorescens (50.18 cm), T3 - Azadirachta indica (47.70 cm), T5 - Chenopodium album (48.41 cm), T4 - Citrus sp. (45.14 cm), as compared to T6 – Carbendazim (treated) (52.18 cm) and T0 – untreated checks (43.27 cm). Maximum total length(cm) in tomato was recorded in T1 - Trichoderma viride (76.21 cm), followed by T2 - Pseudomonas fluorescens (71.59 cm), T3 - Azadirachta indica (70.19 cm), T5 - Chenopodium album (69.71 cm) T4 - Citrus sp (65.44 cm), as compared to T6 – Carbendazim (treated) (71.92 cm) and T7 – untreated checks (61.40 cm). Maximum fresh weight (g) in tomato was recorded in T1 - Trichoderma viride (69.36 g),followed by T2 - Pseudomonas fluorescens (68.60 g), T5 – Chenopodium album - (66.83 g), T3 - Azadirachta indica (65.34 g), T4 - Citrus sp. - (64.64 g), as compared to T6 - Carbendazim (treated) (67.99 g) and T0 – untreated checks (63.93 g). Maximum dry weight (g) in tomato was recorded in T1 - Trichoderma viride (37.85 g), followed by T2 - Pseudomonas fluorescens (35.11 g), T5 - Chenopodium album (33.85 g), T3 -- Azadirachta indica (32.77 g), T4 - Citrus sp. - (31.97 g), as compared to T6 - Carbendazim (treated) (34.11 g) and T0 – untreated checks (28.97 g). Maximum yield (t/ha) in tomato was recorded in T1 - Trichoderma viride (22.22 t/ha), followed by T2 - Pseudomonas fluorescens (20.52 t/ha), T5 - Chenopodium album - (19.24 t/ha),T3 - Azadirachta indica (18.41 t/ha), T4 - Citrus sp. - (16.81 t/ha), as compared to T6 - Carbendazim (treated) (19.91 t /ha) and T0 – untreated checks (15.25 t/ha). Among the tested biocontrol agents and plant extracts against Rhizoctonia solani, T. viride was found the most effective against the fungus in reducing root rot of tomato.


Keywords: Pseudomonas fluorescens, Rhizoctonia solani, Chenopodium album, Trichoderma viride
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How to cite this article:

Vaka Siva Kumar, Dasari Sreevarshini, Sobita Simon and Abhilasha A. Lal. 2019. Efficacy of Plant Extracts and Biocontrol Agents against Root Rot of Tomato Incited by Rhizoctonia solani Kuhn.Int.J.Curr.Microbiol.App.Sci. 8(11): 683-687. doi: https://doi.org/10.20546/ijcmas.2019.811.082