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The aim of the experiment was to obtain information about the yield quantity and quality of 16 cultivated strains of Agaricus bisporus. The ‘Somycel 516’ strain gave the highest yield, whereas the yield from the ‘Sylvan 130’ strain was the lowest. The ‘Hauser A1.5’ was characterised by the highest content of dry matter in all the three yield flushes. An equally high content of dry matter was in the first and second flush of the ‘Italspawn F 50’ strain and in the second flash of the strain ‘Italspawn F 62’. ‘Sylvan S100’, ‘Italspawn F 56’, ‘Irlandzka 501’, ‘Amycel 104’ and ‘Le Lion X13’ were the strains with the lowest content of dry matter in all of the three yield flushes. The size of the carpophores had significant influence on the dry matter content. In the all three flushes, the carpophores with diameter 4.6–5.5 cm were characterized by the lowest dry matter content. [ABSTRACT FROM AUTHOR]

The aim of the research was to assess the influence of calcium chloride and calcium lactate irrigation on the yield volume and dry matter content in two champignon strains, ie Amycel 2200 and Italspawn F59. When both strains were irrigated with calcium lactate, there was a significant decrease observed in the yield when the concentration of the solution was 0.6%. On the other hand, when calcium chloride was applied to the Italspawn F59 strain, there was a significant decrease in the yield when the concentration was as low as 0.4%, whereas the yield of the Amycel 2200 strain dropped when the concentration of calcium chloride was 0.6%. The irrigation with calcium chloride and calcium lactate had influence on the content of dry matter in the champignon carpophores. When the solutions under investigation were applied at concentrations of 0.4 and 0.6%, there was a significant increase observed in the content of dry matter in both strains. [ABSTRACT FROM AUTHOR]

The aim of the studies was to compare yielding ofAgaricus bisporus carpophores of strains, which were cultivated in Poland in previous years and nowadays, as well as dry matter content in them. The following old strains were investigated: 'Hauser A6', 'Hauser A6.5', 'So-mycel 11', 'Hauser A3.2', 'Somycel 53', 'Somycel 209', 'Somycel 91' and 'Hauser A8.8'. From among new strains 'Amycel 29', 'SP-251', 'SP-252', 'Amycel 2200', 'SP-312', 'Italspawn F59', 'Polmycel 29' and 'Polmycel 31' were tested. It was recorded that the yield of old strains varied from 17.3 to 23.7 kg⋅m-2. The biggest yield was given by 'Hauser A8.8' strain. New strains gave the yield from 16.9 to 23.6 kg⋅m-2. The biggest yield of carpophores was obtained from 'Amycel 2200', 'SP-251', as well as 'Polmycel 29' strains. Dry matter content of old strains varied from 8 to 9.6%. Three strains, i.e. 'Hauser A6', 'Somycel 11' and 'Somycel 53' were characterised by dry matter content of above 9%. Dry matter content of new A. bisporus strains was lower than of earlier cultivated strains and varied from 7.1 to 8.4%. [ABSTRACT FROM AUTHOR]

Carpophore dry matter content of several strains of A. bisporus and A. bitorquis obtained from natural habitats was investigated. Two cultivated mushroom strains were used as the control. It was found that the dry matter content of the fruiting bodies differed depending on the strain as well as the species of the analyzed mushrooms. The highest carpophore dry matter content was determined in the strains obtained from the natural environment. The highest dry matter content in the fruiting bodies was determined in A. bisporus Ab/ZW/4 - 11.2% and A. bitorquis Ab/L/11 - 9.6%, as well as in the cultivated strain K26 - 9.3%. [ABSTRACT FROM AUTHOR]