Cultural strategies to increase yield and improve quality of fresh and processed mushroom (Agaricus bisporus) products.
Beelman, R. B.; Simons, S.; Beyer, D.;
Science and cultivation of edible fungi. Proceedings of the 15th International Congress on the Science and Cultivation of Edible Fungi, Maastricht, Netherlands, 15-19 May, 2000. Year: 2000 Pages: 483-489 Ref: 12 ref.
2000
บทคัดย่อ
Experiments attempting to increase Ca and/or reduce Cu uptake by mushrooms were conducted in an attempt to improve crop yield and/or fresh and processed product quality. In the first group of experiments, EDTA (200 ppm), CaCl2 (0.3%) and a combination of both were added in irrigation water and compared to untreated tap water (control) in 3 replicate mushroom crops. Results showed no significant effect of any of the treatments on crop yield, but increases in Ca content, solids, initial and stored whiteness of fresh mushrooms and yield and colour of canned product were observed and attributed primarily to addition of CaCl2. EDTA was not effective in reducing Cu uptake or improving yield or quality of mushrooms. A second set of similar experiments was conducted where EDTA was added directly to the compost at spawning. EDTA was ineffective at reducing Cu uptake or improving quality of mushrooms and appeared to reduce yield. However, addition of CaCl2 to irrigation water and the combination of EDTA a
dded to the compost and CaCl2 added to irrigation water were effective in improving initial and postharvest quality of fresh mushrooms as well as processed product yield and quality. CaCl2 added to irrigation water was most effective in improving quality but appeared to reduce crop yield when compost moisture was limiting. Therefore, subsequent experiments focused on an alternative watering practice that involved adding 2 additional irrigations of the casing between pinning and the first flush and between each subsequent flush. This practice restored yields and produced the best quality mushrooms.