Osmanthus fragrans

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Description

As one of ten Chinese traditional flowers, Osmanthus fragrans Lour. is particularly appreciated in China for its aesthetic value, unique scent and cultural significance. O. fragrans cultivars have been divided into 4 groups, Asiaticus, Albus, Luteus, and Aurantiacus, according to their ornamental traits (flower color and flowering characteristics). Cultivars in the Asiaticus group flower not just in autumn, whereas cultivars in the other three groups only flower in autumn. These three groups differ substantially in petal color. Cultivars in the Albus group typically have butter-yellow flowers (Royal Horticultural Society Color Chart, RHSCC value of 1 to 8), those in the Luteus group typically show golden yellow flowers (RHSCC value of 9 to 20), and the Aurantiacus Group is characterized by orange/orange-red flowers (RHSCC value of 21 to 30). [1][2].

References

  1. Zhang C, Fu J, Wang Y, Bao Z, Zhao H. Identification of Suitable Reference Genes for Gene Expression Normalization in the Quantitative Real-Time PCR Analysis of Sweet Osmanthus (Osmanthus fragrans Lour.). PLoS One. 2015 Aug 24;10(8):e0136355. doi: 10.1371/journal.pone.0136355. eCollection 2015. PubMed PMID: 26302211; PubMed Central PMCID: PMC4547725.
  2. Bustin S. Quantification of mRNA using real-time reverse transcription PCR (RT-PCR): trends and problems. J Mol Endocrinol. 2002; 29: 23–39. PMID: 12200227