NDF and ADL had been screened out. The principal component analysis of stover quality traits showed that ADF, IVDMD, NDF and WSC content were the main factors influencing stover quality traits.

• 通过对秸秆品质性状的主成分分析,发现影响秸秆品质的主要因素是ADF、IVDMD、NDF和WSC含量。