富硒香菇规模化栽培实验及其富硒规律研究

为了了解规模化栽培后富硒香菇的产量(生物学效率)及富硒规律，通过香菇栽培基质添加模式，采取规模化生产进行富硒香菇栽培实验，选取不同浓度硒营养强化剂对香菇品种“向阳二号”和“9608”进行添加，测定相对应的香菇生物学效率以及第一潮次和第二潮次的总硒及硒代氨基酸的含量。实验发现“向阳二号”香菇，在硒添加量较低(0～6 mg/kg)时，香菇的生物转化率基本不随硒添加量的增加而改变，当硒添加量继续增加(10～60 mg/kg)时，香菇的生物转化率整体低于低添加量；“9608”香菇，随着硒添加量的增加(0～60 mg/kg),香菇的生物转化率表现出微弱的增加趋势，但差异性不显著；而两种不同品种、潮次香菇的总硒及硒代氨基酸含量均随着硒添加量的增加而提高，但硒代氨基酸占总硒的比例变化趋势却有所不同，在66.7%～85.4%。此外，对于不同品种的香菇，其第一潮次总硒含量在硒的添加量0～20 mg/kg的范围内呈现良好的规律性，总硒是基质(风干)中硒含量的约4～5倍。可见，按照拟定的规模化栽培模式进行生产栽培，可以得到总硒含量稳定、硒代氨基酸占总硒比>65%的富硒香菇产品，对富硒香菇产业的发展有一...

Study on Large-Scale Cultivation of Selenium-enriched Lentinus Edodes and Its Selenium-enriched Rules

In order to understand the yield(biological efficiency) and selenium enrichment rules of selenium-enriched lentinus edodes after large-scale cultivation. The cultivation experiment of selenium-enriched lentinus edodes were carried out by large-scale production through the model of substrate addition, Different concentrations of selenium were selected to add to lentinus edodes "Xiangyang II" and "9608", the biological efficiency of lentinus edodes and the contents of selenium and seleno-amino acids in the first and second tides were determined. It was found that the biological efficiency of Xiangyang II lentinus edodes did not change significantly at low Se supplemental level (0-6mg/kg), and when the Se supplemental level continued to increase (10-60mg/kg), the biological efficiency of Lentinus edodes was lower than that at low Se supplemental level; For Lentinus edodes 9608,With the increase of selenium supplemental level (0-60mg /kg), the biological efficiency of Lentinus edodes showed a slight increasing trend, but the difference was not significant; The total and seleno-amino acids contents of the two different varieties of lentinus edodes increased with the increase of selenium supplemental level, but the proportion of seleno-amino acids in total selenium did not change significantly with the increase of selenium supplemental level, and the proportion was 66.7-85.4%. ?For different varieties of Lentinus edodes, the total selenium content in the first tide showed a good regularity in the range of selenium supplemental level 0 ~ 20 mg/kg, and the total selenium is about 4-5 times of the selenium content in the matrix (air-dried).Therefore, according to the large-scale cultivation mode, selenium-riched lentinus edodes with stable total selenium content and seleno-amino acids accounting for more than 65% of total selenium can be obtained, which has certain guiding significance for the development of selenium-riched lentinus edodes industry.