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Acta Agron Sin ›› 2012, Vol. 38 ›› Issue (04): 725-731.doi: 10.3724/SP.J.1006.2012.00725

• TILLAGE & CULTIVATION·PHYSIOLOGY & BIOCHEMISTRY • Previous Articles     Next Articles

Observation by Scanning Electron Microscope (SEM) and Analysis of Silicon Content on Glume of Rice Variant Strain with Bird Disaster Resistance

JI Sheng-Dong*,WANG Hai-Sha,ZHU De-Lai,HOU Lei-Lei,WEI Song-Hao,ZHANG Xiang-Yu,ZHANG Yu,LI Chun-Yan,MA Ya-Feng,GUO Dan-Dan   

  1. College of Life Sciences, Henan Normal University, Xinxiang 453007, China
  • Received:2011-09-26 Revised:2012-01-19 Online:2012-04-12 Published:2012-02-13
  • Contact: 姬生栋, E-mail: jisd99@126.com, Tel: 0373-3325645

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Abstract: Bird-disaster-resistantriceisakindofscarcegermplasmresources, and the research on its glume surface structure, such as the close degree of glume tip, the length, diameter and density of pubescence, as well as the silicon (Si) content related with glume mechanical strength could provide a theoretical basis for the exploitation and utilization of the bird-resistant rice variants.Inthe present research,thesurfacestructureandsilicon(Si)contentofglumesofastablyinheritedbird-resistantvariantof rice(the10thgeneration)wereinvestigatedviascanningelectronmicroscopy(SEM)andenergyspectrumtechnology.Comparedwiththreecontrolstrains,thelength,diameteranddensityofpubescenceontheuppermiddlesectionofglumeaswellastheclosedegreeofglumetipweresignificantlygreaterforthevariant,andtheinterspacesbetweenglumesandgrainsweresignificantlysmaller.ThevariantshowedahigherSicontentintheoutersurfaceofglumethanthethreecontrols,whilealowercontentintheirinnersurface.Theseresultsindicatethatthecharacteristicsofthe bird-disaster-resistant variantofricearesignificantlyassociatedwiththesurfacestructureanditsSicontent ofglume,andtheresultsarealsousefulfordevelopingandutilizing new.

Key words: Rice, Glume, Scanning electron microscopy, Energy spectrum, Silicon

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