Reaksi Hipersensitif Daun Tembakau oleh Isolat Bakteri Pelarut Kalium pada Praformulasi Pupuk Hayati

The fruitfulness of biofertilizer application in increasing plant growth and yield is when the formulation uses selected microbial isolates that do not cause disease to plants. Hypersensitivity test carried out ensure used are pathogenic purpose this study was determine pathogenicity three potassium solubilizing bacteria (KSB) (BPK-DHJ3-3150[17], BPK-DHJ1-4125[2], BPKDHJ2-5250[16]) isolated from maize rhizosphere on Inceptisols Jatinangor. research conducted using a qualitative experimental method obtained data form visual photos. KSB were inoculated tobacco leaves observed for necrosis symptoms. results showed did positive hypersensitivity reaction leaves, which indicated by absence symptoms at leaf location where inoculated. nonpathogenic