EVALUATION OF WHEAT (TRITICUM-AESTIVUM) LIMES FOR RESISTANCE TO SPECIFIC VIRULENCES OF HILL-BUNT FUNGI (TILLETIA-FOETIDA AND TILLETIA-CARIES)

An experiment was conducted during winter season (rabi) of 1989-90 and 1990-91 to evaluate 42 lines of wheat (Triticum aestivum L. emend. Fi ori and Paol.) for resistance to specific virulences of hill-bunt fung i [Tilletia foetida (Wallr.) Lire and T. caries (DC.) Tul]. Five speci fic virulences, viz T-A T-B, L-C, L-D and L-E, of T. caries and T. foe tida were used for inoculation. Of the lines tested, 1 1 were found co mpletely free from their infection. Fifteen lines showed resistant rea ction including 3 ['NS 879/4' x 'NP 888 P 1 (F5)', 'HD 2009'x 'HS 86 P 3-3 (F6)' and 'VL 682'] giving differential reaction to different vir ulences. All the wheat varieties recommended for cultivation in the No rthern Hills Zone were found susceptible to all the virulences tested