Efficacy of <i>Trichoderma viride</i> in Controlling the Loose Smut of Wheat Caused by <i>Ustilago segetum</i> Var. Tritici at Multilocation

D. P. Singh; S. Nagarajan; L. B. Goel; D. Singh; J. Kumar; D. V. Singh; Amerika Singh; K. D. Srivastava; R. Aggarwal; M. S. Beniwal; A. N. Tewari; K. P. Singh; A. S. Grewal

doi:10.18311/jbc/2000/4022

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Authors

D. P. Singh
Wheat Research (ICAR) Post Box No. 158, Karnal 132001, Haryana ,IN
S. Nagarajan
Wheat Research (ICAR) Post Box No. 158, Karnal 132001, Haryana ,IN
L. B. Goel
Wheat Research (ICAR) Post Box No. 158, Karnal 132001, Haryana ,IN
D. Singh
IARI RS, Karnal ,IN
J. Kumar
Wheat Research (ICAR) Post Box No. 158, Karnal 132001, Haryana ,IN
D. V. Singh
IARI, New Delhi ,IN
Amerika Singh
GBPUAT, Pantnagar ,IN
K. D. Srivastava
IARI, New Delhi ,IN
R. Aggarwal
IARI, New Delhi ,IN
M. S. Beniwal
CCSHAU, Hisar ,IN
A. N. Tewari
GBPUAT, Pantnagar ,IN
K. P. Singh
GBPUAT, Pantnagar ,IN
A. S. Grewal
PAU, Ludhiana ,IN

DOI:

https://doi.org/10.18311/jbc/2000/4022

Keywords:

Biocontrol, Loose Smut, Trichoderma viride, Uslilago segetumvar.Tritici..

Abstract

The application of Trichoderma viride on loose smut infected seeds (Ustilago segetum var. tritici) or in soil, reduced the smutted tillers up to 17.5 per cent. However, treatment of T. viride alone was not as effective as carboxin seed treatment in the control of loose smut. Maximum reduction was observed in dry seed treatment with antagonist as well as seed treatment plus soil application. The effect of T. viride was more prominent in the seed lot having lower level of loose smut infection. Application of T. viride along with half dose of carboxin was however. found as effective as full recommended dose of carboxin (2.5 g/kg of seed). Soaking of seeds in tap water for 24h also reduced tbe incidence of loose smut by 15.4 per cent.