Allelopathy of Rehmannia Glutinosa on sesame
Rehmannia glutinosa Libosch, a well known herb for Chinese traditional medicine and Sesame are two main crops in northwestern Henan, china. It has been known that however a rotation of these two crops, eg. cultivation of seaseme proceeded with Rehmannia glutinosa Libosch leads to decreased yield and poor quality of sesame In order to identify the compound or allelochemicals which inhibit the growth of sesame, the effect of the crude, tissue extractions of Rehmannia glutinosa on the cultivation of sesame was analysized. We found most allelochemicais exist in the Ethyl acetate extraction of the leaves. Futher fractionation of the leave extraction on silica gel column chromatography followed by GCMS (gas chromatography mass spectrometry), we for the first time identified lauric acid and 2,6-Ditertbutyl phenol as two main alllelochemicals, which inhibit the seed germination of sesame. The identification of the allelochemicals in this study pave the way for further characterization of the molecular interaction of allelochemicals from the proceeding crop Rehmannia glutinosa Libosch, the soil and the succeeding crop sesame, which could be beneficial for improvement of the crop rotation between rehmannia glutinosa and sesame.
rehmannia glutinosa libosch sesame allelopathy allelochemicals
WANG MINGDAO CHENG HONGGE LIU XINYU ZHANG ZHONGYI WU KUN JIA XINCHENG
Life Science Institute of Henan Agrictural University, ZhengZhou 450002,China
国际会议
The First International Conference of Asian Allelopathy Society(亚洲化感作用学会第一届国际会议)
广州
英文
71-77
2009-12-18（万方平台首次上网日期，不代表论文的发表时间）