Akademik Veri Yönetim Sistemi
ALINTERI JOURNAL OF AGRICULTURE SCIENCES, cilt.34, ss.25-31, 2019 (ESCI)
The use of bioagents has become important as an alternative to fungicides to prevent postharvest losses in recent years. In this context, it is aimed to investigate effective of some bacterial and fungal biocontrol agents for control against Alternari alternata, which has a wide range of hosts, leading to losses pre and postharvest. In this aim, dual culture of nine bacterial bio-agents isolate [Bacillus megaterium (TV 3D), Bacillus subtilis (TV 6F, TV 17C, CP 1), Bacillus cereus (TV 85D), Paenibacillus polymxa (TV 12E), Pantoea agglomerans (RK 79, RK 92), Pseudomonas fluorescens (MF 3)] and 3 fungal bioagents [Trichoderma harzianum (ET 4, ET 14, NT 1)] were tested for antagonistic properties against Alternari alternata under in vitro conditions. It has been determined that all bio-agents have an inhibitory effect on the growth of pathogen fungus under in vitro conditions. RK 79 (79.76%) was the most effective isolate in bio-agent bacteria isolates. All of the bio-agent fungal isolates showed a high hyperparasitic effect and the most effective isolate was ET 4 (67.74%). Consequently, promising results were obtained from these bio-agent bacteria and fungi. It is important to carry out studies in vivo bioassays in order to control postharvest decay with bacterial and fungal bio-agents which are determined to be effective.