The original pressure probe has been evolved to four variants,which are cell pressure probe for higher plant cells,root pressure probe,xylem pressure probe and sampling pressure probe.Nowadays,the theory system of pressure probe technique is been formed and the technique is been extensively applied in plant physiology and other fields.It can be applied to investigate higher plant water relations at both cell and tissue level,the interactions between water and solute flows,the xylem tension,the sampling of t...
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