研究了人参不同生育期。年龄及主要器官中氨基酸的变化规律,经检测含有十七种氨基酸。总氨基酸含量以萌芽期(4月)最高,其次为枯萎期(9月),花果期(6月)最低;参根部位含量以主根高于须根,侧根最低;各参龄间以五年生较高。 The nutritional value of reed canary grass at different growth stages, as determined by in vitro gas production and Cornell net carbohydrate and protein system methods