"Indoor" method of composting and genetic breeding of the strains to improve yield and quality of the almond mushroom Agaricus subrufescens
2011
Zied, Diego C. | Pardo-Gimenez, A. | Savoie, Jean-Michel | Pardo-Gonzalez, J.E. | Callac, Philippe
The aim of the present work was to evaluate the potential efficiency of an indoor composting method and the genetic breeding of strains on the agronomic performance (yield, number and weight of basidiocarps, precociousness and earliness) and quality of A. subrufescens mushrooms. The experiment followed a factorial combination (3 composts types * 4 strains) with five replicates per treatment. One strain was a hybrid between French and Brazilian isolates. Strains and composts affected all variables analyzed (yield, number of basidiocarps, precociousness and earliness), except the weight of basidiocarps harvested. According to agronomic performance, yield was positively correlated with the number of basidiocarps and precociousness but was negatively correlated with earliness. According to chemical characteristics of basidiocarps, moisture was positively correlated with the amount of fat; protein was negatively correlated with the amount of hemicellulose and finally, hemicellulose was negatively correlated with the amount of cellulose present in the mushrooms. Despite the observed differences between composts, the best composting process for the cultivation of A. subrufescens is still unknown, requiring further research with management approaches, methods and formulations to be used for the commercial production of a selective substrate. The intercontinental hybrid possessed improved quality characteristics while yielding similar to its better parent. Breeding programs for improving mushroom quality and yield of A. subrufescens would be warranted.
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