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Forest and Grassland Resources Research >

2024 , Vol. 0 >Issue 4: 147 - 155

DOI: https://doi.org/10.13466/j.cnki.lczyyj.2024.04.016

Technical Application

Effects of Rootstock on Ornamental Characteristics and Physiological Indices of New Triadica Cultivars

  • Tiantian WANG ,
  • Qi ZHOU ,
  • Fei ZHUGE ,
  • Yuehanbao JIN ,
  • Ming LIN ,
  • Yingang LI
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  • 1. School of Forestry and Biotechnology,Zhejiang A&F University,Hangzhou 311300,China
    2. Zhejiang Academy of Forestry,Hangzhou 310023,China
    3. Zhejiang Key Laboratory of Forest Genetics and Breeding,Hangzhou 310023,China

Received date: 2024-05-20

  Revised date: 2024-08-01

  Online published: 2025-04-18

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Abstract

The leaf color changes in Triadica sebifera are diverse,while Triadica cochinchinensis exhibits fast growthand strong stress resistance.In order to investigate the effects of two rootstocks,Triadica sebifera and Triadica cochinchinensis,on the ornamental and physiological indicators of new Triadica cultivars,and to screen for more suitable rootstocks for the asexual propagation of each new cultivar,this study adopted a single factor random block design,using four new Triadica cultivars,namely ‘HongziJiaren’,‘Canlan’,‘Pu Dazi’,and ‘Manshan Hongbian’,as experimental materials.They were grafted onto the two rootstocks,and their growth indicators,ornamental characteristics,and physiological changes during leaf discoloration were measured.1)The type of rootstock had no significant effect on the height and diameter growth of the cultivars,but had a significant impact on ornamental traits such as ornamental period,crown size,number of leaves,leaf color parameters(L*,a*,b*),and physiological indicators such as carotenoids and anthocyanins.2)Ornamental characteristics,leaf color parameters,and the changes in physiological indicators of ‘Canlan’,‘Pu Dazi’,and ‘ManshanHongbian’cultivars grafted onto Triadica sebifera discolor rootstocks under T2,T6,and T8 treatments with Triadica cochinchinensis as the rootstock were better than those of T1,T5,and T7 treatments with Triadica sebifera as the rootstock.In contrast,the T3 treatment with‘HongziJiaren’ grafted onto Triadica sebifera performed better,with its discoloration period occurring 14 days earlier.Among all treatments,the combination of Triadica sebifera/‘HongziJiaren’(T3)yielded the best results,with the earliest entering the full leaf color changing period and an ornamental period of up to 24.33 days.Overall,Triadica cochinchinensis as rootstock is more beneficial to improving the ornamental effects of new Triadica cultivars.

Key words： rootstock; Triadica; newcultivars; physiological indicators; ornamental characteristics

Cite this article

Tiantian WANG , Qi ZHOU , Fei ZHUGE , Yuehanbao JIN , Ming LIN , Yingang LI . Effects of Rootstock on Ornamental Characteristics and Physiological Indices of New Triadica Cultivars[J]. Forest and Grassland Resources Research, 2024 , 0(4) : 147 -155 . DOI: 10.13466/j.cnki.lczyyj.2024.04.016

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