Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (10): 54-59.doi: 10.11924/j.issn.1000-6850.casb2020-0406

Special Issue: 园艺

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The Survival Rate and Growth Characteristics of Grafted Seedling of Camellia azalea with Different Rootstocks

Huang Zhanwen(), Lu Jiashi, Bu Zhaoyang, Li Chunniu, Li Xianmin()   

  1. Flower Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007
  • Received:2020-08-26 Revised:2021-02-26 Online:2021-04-05 Published:2021-04-12
  • Contact: Li Xianmin E-mail:zhanwen1986@163.com;lixm7406@126.com

Abstract:

The paper aims to select good rootstocks and stock-scion combination of Camellia azalea, meanwhile, to study relations between graft affinity and those indexes. Five types of C. oleifera cultivars (C. oleifera, C. gauchowensis, C. semiserrata, ‘Cenruan 2’ and ‘Cenruan 3’), which were widely cultivated in Guangxi, were used as rootstocks, and the C. azalea was used as scion to carry out the seed grafting test. The results showed that the survival rate from high to low was: C. gauchowensis (83.33%)> ‘Cenruan 3’ (79.44%)> ‘Cenruan 2’ (70.00%)> C. oleifera (63.33%)> C. semiserrata (50.00%). The diameter ratio between scions and rootstocks in each combination was close to 1, which showed that the synchronous growth was good. Membership function analysis of various indicators showed that the growth of grafted seedlings from high to low was: C. gauchowensis>C. semiserrata>‘Cenruan 3’> C. oleifera>‘Cenruan 2’. There was a certain correlation between the survival rate of grafted seedlings of different rootstocks, new shoots and root growth indicators. According to the comprehensive analysis results, all five kinds of tested C. oleifera and C. azalea have certain compatibility, among them, C. gauchowensis and C. azalea have the best compatibility of grafting.

Key words: rootstock, Camellia azalea, Camellia root stock, nurse seed graft, rootstock-scion combination, grafting survival rate, membership function method, correlation analysis

CLC Number: