Variations of important morphological features of Erianthus arundinaceum germplasms

An experiment was conducted to select the potential energy Erianthus arundinaceum germplasm resource by the variations of 11 morphologic features of Erianthus arundinaceum. This study showed that there were great variations in morphologic indicators, indicating that the range of internode diameter variation was biggest and from 8.86 to 37.36 with 49.66% variance coefficient. The range of boot leaf length and width of the second leaf from the inflorescence variation came to the second and their variance coefficients were 45.10% and 44.20%, respectively. The higher plant height showed a significantly positive correlation with fertile tillers and inflorescence number. Clustering analysis showed that those accessions could be divided into 3 groups, indicating that accessions from different regions with similar characteristics were clustered into one group.