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The content of dry matter in carpophores of Agaricus bisporus was studied. Eight single-spore cultures obtained from Amycel Alpha strain and eight single-spore cultures obtained from Amycel 2600 strain were used in the experiment. The original strains were used as control. The content of dry matter in carpophores of Agaricus single-spore cultures was differentiated. Carpophores of two single-spore cultures originated from Amycel Alpha strain were characterized by lower dry matter content than the original strain. Three single-spore cultures originated from Amycel 2600 strain showed lower dry matter content than the original strain while one single-spore culture was characterized by the higher content of dry matter.
Agrocybe aegerita is a delicious mushroom which was known in Ancient Greece and Rome. The species under natural conditions is met in Mediterranean countries as well as in the Middle and North Europe. The Agrocybe is cultivated mostly on wood or sawdust. Woods of poplar and willow are the best for cultivation of this mushroom, but logs of elm, ash-tree and elder can be useful substrate as well. The study determined the suitability of some substrates to A. aegerita cultivation. Beech, alder, oak, maple and birch sawdust and sawdust of apple-tree, pear- tree and cherry-tree were used in the experiment. Moreover substrates of rape, wheat, rye and barley straw were tested, too. The experiments showed that the yielding of A. aegerita differed significantly in relation to the kind of substrate. Beech sawdust proved to be the most suitable substrate for cultivation of this species.
The study determined the effect of kind of substrate on mycelium growth, length of mycelium maturation period and yield of Lentinula edodes. Birch, beech and maple sawdust as well as rye, wheat, rape-seed and barley straws were used as substrates. The subjects of the experiment were three Lentinula edodes strains: CS-53, CS-333 and Hokken 600. Laboratory tests were conducted at the Department of Vegetable Crops, Agricultural University of Poznań. Cultivation experiments were carried out on the farm specializing in manufacturing the mycelium of cultivated mushrooms in Łobez, near Jarocin. It was stated that the most suitable substrate for shiitake cultivation was the beech sawdust, on which the highest yield was obtained. The highest mean yield of carpophores gave the Hokken 600 strain, irrespective of the substrate applied.
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