Abstract
The use of different bacteria that increase yield and quality in plant production has become common since the 1990s. However, effects of plant growth promoting rhizobacterial (PGPR) treatments during the cultivation period of white button mushroom on quality during marketing duration are not known exactly. This study was carried out to determine the effects of different PGPRs in compost medium on mushroom yield and quality. For this reason, Azospillum lipoferum, Bacillus megaterium, Frateuria aurantia and Thiobacillus thiooxidans, for promoting nitrogen, phosphorus, potassium and sulfur transport, respectively, were applied at a 3 mL per m2 concentration on the 12th day of the spawn run period. Control groups were treated with only water. Azospillum lipoferum increased yield at a rate of 33.3% by enhancing mushroom number per unit area. Shelf life characteristics were observed in mushrooms after storage at 1 °C and at 20 ± 1 °C for 2 days. Bacillus megaterium, Frateuria aurantia and Thiobacillus thiooxidans treatments decreased weight loss and loss in cap firmness, total phenolic compounds and antioxidant capacity during shelf life. However, Azospillum lipoferum for increased yield and Frateuria aurantia and Bacillus megaterium for maintaining postharvest quality were promising treatments during shelf life.
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