Activities Pseudomonas spp. and Bacillus sp. to Stimulate Germination and Seedling Growth of Tomato Plants

Abstract

Microbes, that are beneficial to plants, the group of Rhizobacteria such as Pseudomonas spp. and Bacillus sp. can serve as fertilizer, as a means of biological control of plant pathogens and can increase plant resistance. This study aimed to determine the activity of Pseudomonas spp. and Bacillus sp. in promoting germination and seedling growth of tomato plants. This is experimental study using RBD basic design (Randomized Block Design). There are three treatments of tomato seed soaking time is 10, 20, and 30 minutes with 3 types of suspension that isolates of Pseudomonas spp., Bacillus sp., and a mixture of both these bacterial isolates. The study of tomato seed germination time showed that treatment of bacterial isolates is very real effect, where the control slower germination 2-3 days, while the treatment of both types of isolates germination between 4-5 days. Tomato seed treatment by soaking period of bacterial isolates between 10 to 30 minutes does not give a significantly different effect on the time of germination and growth of tomato seedlings. Isolate the Bacillus sp. tends to give a tomato seedling growing faster than the Pseudomonas spp. isolates, while a mixture of both isolate the bacteria does not give a different impression with a single treatment. Among the three treatment isolates showed no significant differences, except compared to control.