EFFICACY OF CARRIER MATERIALS TO FORMULATE Trichoderma harzianum BIO-FUNGICIDE IN CONTROLLING SEEDLING DISEASE (Rhizoctonia solani) OF EGGPLANT

Efficacy of three different carrier materials viz. rice bran, wheat bran, grass pea bran and their combinations with mustard oilcake (MOC) were tested to formulate a suitable Trichoderma harzianum based bio-fungicides for controlling seedling disease of eggplant caused by Rhizoctonia solani in tray soil as well as in seed bed soil under net house condition of Bangladesh Agricultural Research Institute (BARI). The results from a series of experiments revealed that rice bran based five combination of carrier on T. harzianum bio-fungicides such as (1) rice bran + wheat bran, (2) rice bran + mustard oilcake (MOC) (3) rice bran + grass pea bran, (4) rice bran + wheat bran + MOC and (5) rice bran + grass pea bran + MOC were suitable for controlling the soil borne seedling disease of eggplant in tray soil as well as seed bed soil conditions. Besides, vegetative growth of eggplant seedlings viz. shoot length, shoot weight, root length and root weight were enhanced significantly by these combination of carrier material based T. harzianum bio-fungicides in R. solani sick seed bed condition.