Development of formulations ofTrichoderma harzianumstrain M1 for control of damping-off of tomato caused byPythium aphanidermatum

Autor: N. V. Radhakrishnan, Rethinasamy Velazhahan, J. Jayaraj
Rok vydání: 2006
Předmět:
Zdroj: Archives Of Phytopathology And Plant Protection. 39:1-8
ISSN: 1477-2906
0323-5408
Popis: A carbendazim resistant Trichoderma harzianum strain M1, inhibitory to the growth of the damping-off pathogen Pythium aphanidermatum was used for the development of new carrier formulations. Seven different formulations (talc, lignite, lignite + fly ash-based powder formulation, wettable powder, bentonite paste, polyethylene glycol-paste and gelatin-glycerin-gel) were developed for seed treatment. Shelf life of the formulations was evaluated under storage at 24°C up to nine months. The population of propagules was optimum in all the formulations up to three months of storage. Seed treatment with Trichoderma formulations reduced the incidence of damping-off disease of tomato up to 74% and also enhanced the plant biomass under greenhouse and field conditions. Active colonization of T. harzianum in the rhizosphere of tomato plants was observed following seed treatment with the formulations.
Databáze: OpenAIRE