Assessment of different formulations of Trichoderma for their shelf life

Abstract

Eleven formulations of Trichoderma asperellum were evaluated in present investigation, among these four types of tablets formulation viz. talc tablets, charcoal tablets, lignite tablets, fly ash tablets, six capsules formulations viz. talc capsule, alginate capsules, gelatin capsules, alginate + charcoal capsules, gelatin + fly ash capsules and T. asperellum frozen culture mass along with medium disc capsules and one sorghum grains formulation as a control were used and observation on shelf life up to 270 days from date of manufacturing at regular intervals of 30 days were taken. Maximum cfu/g (42.00 x 107) was obtained in Trichoderma treatment frozen culture mass along with medium disc capsule and least cfu/g was recorded in T. asperellum lignite tablet (11.33 × 107 cfu/g) upto 270 days of storage. In the present study tablet and capsule delivery system of various formulations was tried by using jaggery treatment. Maximum population of T. asperellum obtained (45.00 × 107 cfu/ml) in T. asperellum frozen culture mass along with medium disc capsule and minimum were obtained in T. asperellum lignite tablets, (8.33 × 107cfu/ml).