Volume 13 Part 2 Article 32: Dry Matter Content of Fruitbodies of Agaricus bisporus (Lange Sing.): Evaluation during Cropping

Volume 13 Part 2 Article 32
Year 1991
Title: Dry Matter Content of Fruitbodies of Agaricus bisporus (Lange Sing.): Evaluation during Cropping
Authors: J. Laborde and R. Delpech

Abstract:

The freeze drying industry needs a regular supply of mushroom fruitbodies characterized by a large dry matter content (DMC). On four successive experiments DMC of tray grown mushrooms, in air conditioned mushroom houses, was regularly determined in relation with the following variables:

– One type of standard commercial outdoor compost, the Phase 2 process being effected in trays. – Six commercial strains, but no hybrid. – Supplementation at spawning and/or at casing. – Varying watering level and frequency.

Daily assessment of DMC indicated that high DMC is always associated with first flush mushrooms, and with low watering level and frequency, for all strains tested. Large daily variations of DMC are observed, and they always follow a similar pattern which is discussed. Under identical growing conditions, DMC varies from one strain to the other; large white and small brown mushrooms have a larger DMC than others. The effect of supplementation is questionable.

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