This study aims to select the optimal Camellia oleifera clones with the strong adaptability in Guizhou alpine region.15 superior clones were collected to compare their indicators of growth.A correlation analysis was then made on the growth traits of Camellia weiningensis and Camellia pitardii clones.The results showed that the average growth indexes in the10 Camellia pitardii clones were higher than those in the five clones of Camellia weiningensis.There was the increase in the average grafting diameter,grafting height,length of branch,and number of flowers for the KY-1 and CH15-2 of 15 clones over two years.The growth also demonstrate that the KY-1 shared the largest increment of grafting diameter(10.34 mm),while the JCP-5 had the largest increment of grafting height and flower number(130.8 cm and 32,respectively),and the BG-6 had the largest increment of branch length(31.9 cm).There was a positive correlation between the growth traits,indicating an increasing trend with the increase of forest age.As such,the early superior clone was achieved from Camellia sinensi(KY-1)and Camellia weiningensis(CH15-2),while two early candidate superior clones were from Camellia sinensi(JCP-5 and BG-6).This finding can provide the breeding varieties for the development of Camellia oleifera industry in high altitude areas.
维普
万方数据