Integrated Evaluating and Classifying of the Similarity-difference Analysis for the Generation F2 (BC1) from Saccharum spontaneum ‘Yunnan 82-114’

Abstract:

The aim was to comprehensive evaluate the parents of F₂ (BC₁) generation from Saccharum spontaneum ‘Yunnan 82-114’, sixty-five parent materials were screened by similarity-difference analysis based on conjugated aggregation theory. The results showed that the materials occupied top 10 similarity-difference correlation degree were Yunrui09-23 (YR09-23), Yunrui09-44, Yunrui09-36, Yunrui09-74, Yunrui09-65, Yunrui09-35, Yunrui09-14, Yunrui09-58, Yunrui09-51 and Yunrui09-67. There were thirty-three and thirty-six materials exceeding control variety Xintaitang22 (ROC22) and Yuetang93-159 (YT93-159), respectively. The 65 parent materials could be classified twenty-six clusters in equivalence matrix (λ=0.910). The parents with front rank of similarity-difference correlation degree and different clusters usually have some outstanding characters. These would provide the basis for selecting and utilizing parent materials.