Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 18, Issue 2, 2016; Page No.(345-350)

THE DEVELOPMENT OF FORMULA BASED ON TROPICAL ACTINOMYCETES TO PREVENT PEPPER STEM ROT DISEASES (A CASE OF ATTACK PEPPER (PHYTOPHTHORA CAPSICI) STEM ROT DISEASE)

RANTE HERLINA, ALI ALIMUDDIN AND THAMRIN SULAEHA

Abstract

The research to gain a biofungicide formula as a biological agent for suppressing and controlling pepper pathogen fungi has been conducted. This research was carried out by formulating active ingredient of the extract and biomass strain of Streptomyces sp WGKP. The research was using randomized block design (RBD) with 4 treatments and 6 replications. Application of formula was done by spraying of substances include (A) partial purified extract + 1Kg of carrier materials, (B) biomass (108 CFU/g carrier materials), (C) commercial fungicide, and (D) controls. The parameters were observed such as percentage of infection, the effectiveness of treatment, antifungal activity and viability of biomass to the shelf life. The results revealed that there were no differences in the percentage of infections among all the treatments, but significantly different from control on a field scale trial. The same thing is shown by the effectiveness of the treatment on the field scale trial. However, in tests in planta in polybags showed that the effectiveness of the treatment was significantly different between treatments. Therefore, our results suggest that the application of extracts and biomass from the strain WGKP as an active biofungicide material is very prospective to control and prevent the spread of fungi Phytophthora capsici.

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