Screening and Nutrient Analysis of Auricularia auricula Varieties for Hanging Bag Cultivation in Northwest China
In order to screen suitable varieties for hanging bag cultivation in greenhouse in Northwest China,six A uricularia au-ricular varieties from domestic breeding units were selected as the test subjects.The differences in mycelial growth rate,pollu-tion rate,yield,commodity rate and conversion rate of different varieties were compared,the Heiwei 15 and Heifeng 2 selected as excellent varieties suitable for hanging bag cultivation in greenhouse.At the same time,the contents of conventional nutri-ents,minerals and amino acids of two varieties were compared,and the nutritional richness of A.auricula was analyzed.The results showed that the mycelial growth rate of Heiwei 15 was the fastest;full stick time,ear bud formation time and the first flush picking time were the shortest;and the yield and converted efficiency were the highest.The content of crude protein in the fruit bodies of Heiwei 15 and Heifeng 2 was the highest,followed by crude fiber content.The content of calcium in minerals was the highest,followed by magnesium.Among the amino acids,the content of glutamic acid was the highest,followed by aspartic acid.The two varieties of A.auricula are rich in nutrients,and the nutrition in the fruit bodies of Heifeng 2 is more comprehen-sive than that of Heiwei 15.