Effect of different spawning bag techniques on various yield and growth parameters of white button mushroom (Agaricus bisporus)

In the present diet conscious era, mushrooms are increasingly considered as a future vegetable, thus to sustain productivity and enhance yield, experiment was conducted at Mushroom Production Technology unit Bihar Agricultural University, Sabour, Bhagalpur during November 2019- February 2020.White button mushrooms, Agaricus bisporus (Lange) Sing. were cultivated using different techniques of spawning bag. Among various employed, closed mouth bag with perforated PVC pipe without pores gave best result minimum days for spawn run (14 days), case (11.8 days) maximum total yield (1.32 kg/bag) biological efficiency 33.06% followed by bags pipes 16-18 1.13 0.97 kg/bag respectively.