Natural Plant Extracts and Microbial Antagonists to Control Fungal Pathogens and Improve the Productivity of Zucchini (Cucurbita pepo L.) In Vitro and in Greenhouse

Background: Natural plant extracts and microbial antagonists have the potential for use in increasing fungal resistance productivity of horticulture plants. Methods: The purpose this study was to evaluate ability both natural as a biotical control some pathogens, i.e., Fusarium ssp., Exserohilum ssp. Nigrospora along with improving growth performance zucchini under greenhouse conditions. Eucalyptus camaldulensis leaf extract (LE), Citrus sinensis LE, Ficus benghalensis fruit (FE), two Pseudomonas fluorescens (accession no. MW647093) Trichoderma viride MW647090) were tested vitro vivo Through morphological characteristics internal transcribed spacer (ITS) region, solani MW947256), F. oxysporum MW947254), rostratum MW947255), lacticolonia MW947253) identified. HPLC analysis used identification phenolic compounds (PCs) flavonoid (FCs) extracts. Results: highest inhibition percentage (IPFG) against obtained P. fluorescens, T. viride, E. LE (4000 mg/L); C. FE mg/L) mg/L), N. fluorescens. Using analysis, abundant PCs pyrogallol, caffeic acid, those syringic acid ferulic gallic acid. In addition, FCs kaempferol, naringin, hesperidin quercetin, kaempferol quercetin. Under experiments, followed by + treatments gave best results plants terms area, fruits number per plant, yield total (marketable non-marketable). Conclusions: Plant bioagents can be pathogens increase