Phenolic compounds in conducive and suppressive soils on clubroot disease of crucifers

C. C. Young, K. T. Cheng, G. R. Waller

研究成果: 雜誌貢獻文章同行評審

18 引文 斯高帕斯(Scopus)

摘要

Three conducive and three suppresive soils were examined for differences in physical and chemical properties, as well as qualitative and quantitative content of phenolic compounds. The three suppressive soils were slightly alkaline, whereas the three conducive soils were slightly acid. The concentrations of Ca and Mg in suppressive soils were 3-15 times those in conducive soils. The total concentrations of phenolics and humic acids in conducive soils were 2-4 and 2-10 times those in suppressive soils, respectively, whereas the concentrations of gentisic (2,5-dihydroxybenzoic) acid in suppressive soils was higher than that in conducive soils. In bioassay, the radicle growth of Brassica pekinensis was inhibited more by extracts from the conducive soils than those from the suppressive soils. Clubroot disease was significantly suppressed by gentisic acid applied to conducive soil at the rate of 800 mg kg-1. When seeds were soaked in of gentisic acid solution (800 mg kg-1, pH 5.5) 24 h before planting, the incidence of the disease dropped from 78 to 41%.

原文英語
頁(從 - 到)1183-1189
頁數7
期刊Soil Biology and Biochemistry
23
發行號12
DOIs
出版狀態已發佈 - 1991
對外發佈

ASJC Scopus subject areas

  • 土壤科學
  • 生物化學
  • 生態學
  • 地球與行星科學(全部)
  • 環境科學 (全部)

指紋

深入研究「Phenolic compounds in conducive and suppressive soils on clubroot disease of crucifers」主題。共同形成了獨特的指紋。

引用此