BIOCONTROL EFFICACY OF Trichoderma ISOLATES AGAINST Sclerotium rolfsii CAUSING COLLAR ROT DISEASE IN CHICKPEA

B. SWATHI¹*, A.K. PATIBANDA², J. KRISHNA PRASADJI³, P.V. KRISHNAYYA⁴, M. LAL AHAMED^5
1Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Guntur, 522034, Andhra Pradesh
²Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Guntur, 522034, Andhra Pradesh
³Dean of Agriculture, Acharya N. G. Ranga Agricultural University, Guntur, 522034, Andhra Pradesh
⁴Associate Dean, Agricultural College, Naira, Acharya N. G. Ranga Agricultural University, Guntur, 522034, Andhra Pradesh
⁵Advanced PG Studies, Acharya N. G. Ranga Agricultural University, Guntur, 522034, Andhra Pradesh
* Corresponding Author : swathib2004@gmail.com

Received : 20-04-2018     Accepted : 27-04-2018     Published : 30-04-2018
Volume : 10     Issue : 8       Pages : 5880 - 5884
Int J Agr Sci 10.8 (2018):5880-5884

Keywords : Chickpea, Sclerotium rolfsii, biocontrol potential, Trichoderma
Academic Editor : Dr B P Bhaskar
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Acharya N. G. Ranga Agricultural University, Guntur, 522034, Andhra Pradesh
Author Contribution : All author equally contributed

Chickpea is an important cool season food crop grown mainly in dry land. The crop suffers from serious diseases which affect it in all growth stages. The pathogens that affect chickpea include fungi, bacteria, viruses and mycoplasma. Among them collar rot caused by Sclerotium rolfsii is an important fungal pathogen in chickpea root disease complex causing serious losses. To find the biocontrol potential of Trichoderma isolates applied through seed and soil application methods, pot culture experiment was conducted. In pot culture, isolate Th4 (64.4%), T22 (60.2%), Tckp (60.2%), T14 (56.0%), T15 (56.0%), Th2 (52.3%), Th3 (52.3%) and Trice (51.4%) gave more than 50% control of chickpea collar rot when applied to soil. Isolate T12 (63.4%), Th4 (60.2%), Tv3 (52.3%), T2 (51.4%) and Trice (51.4%) gave more than 50% disease control when applied as seed treatment.

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