Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (11): 2149-2159.DOI: 10.3969/j.issn.1000-2561.2019.11.008

• Phytophysiology and Biochemistry • Previous Articles     Next Articles

Effects of Rhizosphere Soil Chemicals on Growth and Quality of Tea Trees at Different Ages

WANG Haibin1,2,CHEN Xiaoting1,2,WANG Yuhua1,ZHAO Hu1,4,ZHANG Huabin1,DING Li1,KONG Xianghai1,YE Jianghua2,3   

  1. 1. College of Life Sciences, Longyan University, Longyan, Fujian 364012, China
    2. Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
    3. College of Tea and Food Science, Wuyi University, Wuyishan, Fujian 354300, China
    4. College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu 730070, China
  • Received:2019-02-18 Revised:2019-05-11 Online:2019-11-25 Published:2019-11-28

Abstract:

In order to analyze the effect of tea tree rhizosphere soil chemicals on the growth and quality of tea tree, the rhizosphere soils from Tieguanyin tea plantations of 0, 3, 9 and 25 years old were extracted and eluted through different polar resins to discuss the effects of rhizosphere soil with different planting ages on the growth and quality of tea trees. The inhibitory effects by resin eluents on the receptor dry weight were in the order, 25>9>3>0 years, furthermore, the ADS-7 resin adsorption eluent had the strongest inhibitory effect. After exogenous addition the different resin eluent, the contents of IAA and ZR in the tea leaves significantly decreased with the increase of tea tree age, when treated by the same resin eluent, while the ABA content showed a significant increase. In addition, when the tea trees were in the same age, and the effect of different resins were still the ADS-7 most, as showed that the contents of IAA and ZR in the tea leaves were the lowest and the ABA was the highest. Analysis of the contents of amino acids in the tea leaves showed that the contents of total amino acids, hydrophilic amino acids, sweet amino acids and umami amino acids in the tea leaves were showed a downward trend with the increase of tea tree age after treated by different resin eluent. In summary, the rhizosphere soil chemicals of tea tree had an autotoxicity effect on tea tree and the ADS-7 resin eluents from 25-year-old tea tree rhizosphere soil were the stronges.

Key words: rhizosphere soil of tea tree, autotoxicity, endogenous hormones, amino acids