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PANG Li-zheng, CHENG Fang-yun, ZHONG Yuan, CAI Chang-fu, CUI Hu-liang. Phenotypic analysis of association population for flare tree peony[J]. Journal of Beijing Forestry University, 2012, 34(6): 115-120.
Citation: PANG Li-zheng, CHENG Fang-yun, ZHONG Yuan, CAI Chang-fu, CUI Hu-liang. Phenotypic analysis of association population for flare tree peony[J]. Journal of Beijing Forestry University, 2012, 34(6): 115-120.

Phenotypic analysis of association population for flare tree peony

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
  • Published Date: November 29, 2012
  • By extensive investigation in Gansu Province of northwestern China, where flare tree peonies are concentratedly cultivated, this study selects one population that is composed of 150 seedlings to evaluate the adaptability for association analysis in molecular assisted selection. Totally 32 characters were investigated and analyzed, on which phenotypic variation analysis, principal component analysis (PCA) and correlation analysis were conducted. The results showed that the variation of all 22 numerical traits was extremely significant (P0.01) and the coefficient of variation (CV) was 10%-30%, all 10 taxonomic characters had a rich variation in phenotypes, representing phenotypic variations of P. rockii hybrids. PCA showed that the traits of stems and buds and the length of compound leaves were the best predictor of polymorphism patterns in flare tree peonies, and the variation of phenotypes was with equal distribution within this population without conspicuous structure, but a hierarchical relationship was observed among different traits. The above results indicate that this selected population is well suited for the association analysis of charactermolecular marker in P. rockii hybrids.
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