| dc.description.abstract | Groundnut (Arachis hypogaea) is one of palawija commodity are widely
cultivated in Indonesia. Groundnut production in Jawa Timur tends to decrease in
recent years. In agriculture activities has various of obstacle biotic agronomy like
pest or disease infection. Damping off is main disease of groundnut plant caused
by Sclerotium rolfsii. Plant symptoms consist of two phases are pre-emergence
and post-emergence. The biocontrol agents can be use as alternative practice to
against plant pathogens caused damping off. Trichoderma sp. is one of biocontrol
agents have been widely use as antagonistic fungal to against several plant
pathogens with mechanism antibiosis, parasitism, and competition. Trichoderma
sp. application can by seed treatment method. Seed treatment with biocontrol
agent has the potential for protecting plant life cycles with root colonization and
suppressing disease infection in plants. This study was designed in a completely
randomized design (CRD) consisting of 6 treatment, namely: Seed soaking with
sterile aquadest (control), isolate KN01, isolate BP01, isolate JS02, isolate TB01,
and isolate CN01. The result showed that isolate TB01 is one of the best isolate
Trichoderma sp. with incubation period post-emergence 6 days longer than
control, disease incidence in pre-emergence 1.67% and post-emergence 18.65%,
disease severity 12.63%, and controlling effectiveness 47.95%. | en_US |
