Strain CPP-53 grown in 100 ml ken knight broth to evaluate growth
promotion activity on tomato (L. esculantum) under greenhouse
condition. Seven days old culture of actinomycetes with a
concentration of 8 x 10-7 cfu ml-1 inoculated on rootlets one week
later of pathogen inoculation, with one control (without
actinomycetes). The experiment repeated twice and the end of 25th
day plants were uprooted and biometric observation was done, that
is, plant height, root length and total plant biomass.