Effects of Different Soil Water Content on the Yield and Quality of Rehmannia Glutinosa

VernacularTitle:土壤含水量对地黄产量及质量的影响
Author: Zhenhui DU ; Chengming DONG ; Yunhao ZHU ; Shuo WEI ; Feng YAO
Keywords: Soil water content; Rehmannia glutinosa; the grey pattern recognition
From: World Science and Technology-Modernization of Traditional Chinese Medicine 2016;18(7):1195-1198
CountryChina
Language:Chinese
Abstract: This study aimed to elucidate the effects of different soil water contents on the yield and quality of R.glutinosa.Different soil water contents were adjusted in different periods of growth of R.glutinosa.The yield,content of water extract,catalpol,verbascoside and polysaccharide were determined and analysed by the grey pattern recognition after harvests.The impacts of soil water content from the most important to the least important were medium moisture content (M2),high moisture content (M3),low moisture content (M1) and blank (M4).In the cultivation of R.glutinosa,the soil water content should be remained in the range of 40％-50％ at seedling stage,while 50％-60％ at the stage of root formation and tuber enlargement,and 20％-30％ during harvesting,which can significantly improve the yield and quality of R.glutinosa.