title: [Studies on agronomic traits of seedlings from different F1 generations of Dendrobium officinale].
abstract: OBJECTIVE
  To select superior mating combinations from different F1 generations of Dendrobium officinale.
  
  
  METHODS
  Twenty-six superior parents from four provenances were selected to make up 26 mating combinations. The agronomic traits of different F1 generation were measured, counted, and analyzed by DPS software.
  
  
  RESULTS
  There were significant differences between different mating combinations among F1 generations. The variation among full-sib families was significantly higher than that among half-sib families, while the variation inside full-sib families was significantly lower than that inside half-sib families. Twelve agronomic traits were simplified into four principal components, of which the accumulative contribution rate was 84.127 3%. Twenty-six mating combinations have been divided into six groups, plants from the fifth and sixth group grew much better than the others.
  
  
  CONCLUSIONS
  The selection of parents should be emphasized by using hybrid vigor. There were higher genetic gains and superior uniformity inside families when selection and breeding occurs in full-sib families than in half-sib families. Eight superior full-sib families (83 x 34, 66 x 9, 68 x 2, 91 x 69, 66 x 65, 69 x 91, 17 x 66, 66 x 17) have been selected which showed a good agronomic traits of seedlings.
authors.affiliation: A Nurtwuring Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Provinicial Strategic Allicance for Technical Innovation in Industry of Dendrobium officinale Natural Medicine, Lin'an 311300, China.
authors.forename: Zhi-Gao
authors.initials: ZG
authors.lastname: Liu
authors.forename: Bo
authors.initials: B
authors.lastname: Zhu
authors.forename: Jin-Ping
authors.initials: JP
authors.lastname: Si
authors.forename: Xiao-Ling
authors.initials: XL
authors.lastname: Zhang
authors.forename: Ting-Ting
authors.initials: TT
authors.lastname: Gao
authors.forename: Yu-Qiu
authors.initials: YQ
authors.lastname: Zhu
mesh_terms: D000383:Agriculture / Q000191:economics*; D016000:Cluster Analysis; D031667:Dendrobium / Q000235:genetics* / Q000254:growth & development*; D006824:Hybridization, Genetic; D036226:Seedlings / Q000254:growth & development*; D012984:Software