Asexual reproduction component and its diversity of wild Humulus scandens in Nanchong

The asexual reproduction components of 4 populations of Humulus scandens in Nanchong of Sichuan Province were studied and the results showed the coefficient of variation (cv) of petiole length and the leaf radius were 43.9% and 27.54% respectively. The adult plants had a great difference in cv between their secondlevel stem, the thirdlevel stem and the node segment length. For the 4 populations, the cv of secondlevel stem were 86.33%, 91.46%, 76.36% and 51.20% respectively; as the thirdlevel stem, they were 81.83%, 66.44%, 52.35% and 26.82% respectively. The cv of node segment length were 38.17%, 49.77%, 32% and 48.34% respectively. Moreover, the inflorescence length, floret number, inflorescence radius and floret radius were obviously different.