Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Remote Sensing》 2007-02
Add to Favorite Get Latest Update

Predicting Leaf Maturity of Flue-cured Tobacco Using Red Edge Characteristics of Laboratory Spectrometry

LI Xiang-yang1,LIU Guo-shun1,SHI Zhou2,YE Xie-feng1,ZHAO Chun-hua1(1.National Tobacco Cultivation and Physiology and Biochemistry Research Center ofHenan Agricultural University,Henan Zhengzhou 450002,China;2.Institute of Agriculture Remote Sensing & Information Application,Zhejiang University,Zhejiang Hangzhou 310029,China)  
The experiment was conducted to investigate the relationships amongst the leaf red edge characteristics and physiological and biochemical matters in tobacco leaf,especially pigment contents,in different mature stages.The tobaccos were grown under three levels of nitrogen supply during the period of May 2005 to September 2005.The regression analysis showed there was a significant correlation between the red edge position and chlorophyll a+b contents in tobacco.The results indicated that the red edge position within the range of 693—695nm was able to be used as a good reflection of ripe leaves,and the red edge position of 688nm was confirmed as the character of best overripe.Leaf maturity could be identified through chlorophyll a+b contents estimated by the corresponding red edge positions.Accordingly,this study suggests that the spectral data serve as promising measures to predict the maturity level of tobacco leaf,and also provides a strong support for decision making of tobacco production.
【Fund】: 国家烟草专卖局重点资助项目(编号:110200401021)
【CateGory Index】: TP79
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved