Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (11): 2358-2367.DOI: 10.3969/j.issn.1004-1524.2022.11.05

• Crop Science • Previous Articles     Next Articles

Effects of Magnolia officinalis leaf litter decomposition on growth trait and physiological characteristic of Fritillaria hupehensis

DUAN Yuanyuan1,2(), LIU Xiaohong2, WU Jiaqi1, GUO Xiaoliang1, WANG Fanfan1, TANG Tao1, YOU Jingmao1, GUO Jie1,2,*()   

  1. 1. Key Laboratory of Biology and Cultivation of Chinese Medicinal Materials, Ministry of Agriculture and Rural Affairs, Hubei Standardized Production of Traditional Chinese Medicine (GAP) Engineering Research Center, Institute of Chinese Herbel Medicine, Hubei Academy of Agricultural Sciences, Enshi 445000, Hubei, China
    2. Hubei Provincial Engineering Research Center of Under-Forest Economy, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
  • Received:2022-03-16 Online:2022-11-25 Published:2022-11-29
  • Contact: GUO Jie

Abstract:

In order to investigate the allelopathic effect of Magnolia officinalis leaf litter decomposition, a pot experiment was conducted to explore the effects of M. officinalis leaf litter decomposition in soil on growth traits and physiological characteristics of Fritillaria hupehensis. The results showed that compared with control group, at the seedling stage, plant height, leaf length, leaf width, leaf area, bulb length, bulb width, bulb fresh weight and chlorophyll content of F. hupehensis showed no significant difference in low-dose treatment (P>0.05), and were significantly inhibited in the high-dose treatment (P<0.05). At the flowering stage and the beginning of the withering stage, the plant height, leaf length, leaf width, leaf area and chlorophyll content of F. hupehensis showed obvious trends of “promoting effect at low concentration and suppressing effect at high concentration”. The antioxidant enzyme activities, malondialdehyde content and superoxide anion free radical content of F. hupehensis showed different changes in different developmental stages. With the increase of the dose of M. officinalis, comprehensive effect value increased first and then decreased, and the order was T2 (10.50 g·kg-1) (1.16)>T1 (5.25 g·kg-1) (0.44)>T3 (15.75 g·kg-1) (0.02)>T4(21.00 g·kg-1) (-0.99). Principal component analysis showed that chlorophyll content, malondialdehyde content and superoxide dismutase activity were the main indicators affecting the growth of F. hupehensis at the seedling stage. During the flowering stage, leaf length, leaf width, leaf area and plant height could be used as the main indicators to characterize the growth of F. hupehensis. In the falling seedling stage, superoxide anion free radicals content and peroxidase activity became the main traits affecting the growth of F. hupehensis, underground traits such as bulb length, bulb width, and fresh bulb weight could be used as the main research indicators for the growth of F. hupehensis. In conclusion, the low-dose M. officinalis litter treatment significantly promoted the growth of F. hupehensis, while the high-dose M. officinalis litter significantly inhibited the growth of F. hupehensis. When the dose of M. officinalis was 10.5 g·kg-1, growth of F. hupehensis was the best.

Key words: Magnolia officinalis Rehd.et Wils., leaf litter, Fritillaria hupehensis Hsiao et K. C. Hsia, allelopathy, growth trait, physiological characteristic

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