Sap Flow Tool 1.2.4 Released

Tuesday, May 8th, 2012

Version 1.2.4 of Sap Flow Tool has been released.

What’s new in this version:

    • Improved importing of SFM csv files (e.g. disabled thermistors).
    • Added support for changing sensor configurations in SFM csv files.
    • Fixed problems with high frequency SFM raw temperature measurements (.bin files).
    • Fixed a filter problem for SFM raw temperatures.

You can download it here (including a demo version).

Facebook Twitter Linkedin Email

Sap Flow Tool 1.2.3 released

Monday, February 6th, 2012

Version 1.2.3 of Sap Flow Tool has been released.

What’s new in this version:

    • Sap Flow Tool Lite: cheaper version but can only process one sensor from one data file at a time
    • Improved filtering/visualisation of large data sets
    • Improved support for date/time formats without leading zeros (useful when the data file has been edited in Excel)

You can download it here (including a demo version).

Facebook Twitter Linkedin Email

Sap Flow Tool 1.2.2 released

Tuesday, June 7th, 2011

Version 1.2.2 of Sap Flow Tool has been released.

What’s new in this version:

  • Mac OS X version
  • System which alerts you when a new Sap Flow Tool version is available
  • Graphs can now also be exported as tiff or bmp images (beside jpeg)
  • Thermistors located in the heartwood are now properly accounted for during sap flow calculations
  • + various other changes and enhancements

You can download it here (including a demo version).

Facebook Twitter Linkedin Email

Phyto-IT at the 8th International Workshop on Sap Flow

Sunday, May 8th, 2011

Phyto-IT was present at the 8th International Workshop on Sap Flow in Volterra, Italy. At the booth of ICT International a demo video of Sap Flow Tool was shown throughout the conference.

Pictures of the sponsors area where the Sap Flow Tool demo video was shown:

Facebook Twitter Linkedin Email

Sap Flow Tool 1.2.1 released

Tuesday, March 15th, 2011

Version 1.2.1 of Sap Flow Tool has been released.

What’s new in this version:

  • Support for time expiring copy protection dongles
Facebook Twitter Linkedin Email

Phyto-IT co-authors a paper comparing several sap flow sensors

Friday, May 7th, 2010

A paper about the comparison of several sap flow sensors, co-authored by Dirk De Pauw (Phyto-IT), was published in Agriculture and Forest Meteorology. A laboratory test and field evaluation were conducted to determine the accuracy of the three commonly used techniques for measuring sap flux density in trees: heat pulse velocity, thermal dissipation and heat field deformation. In the laboratory test a constant flow rate of water was maintained through freshly cut stem segments of diffuse-porous Fagus grandifolia trees. The three sensor types were measured simultaneously and compared against gravimetric measurements. All three techniques substantially underestimated sap flux density. It is concluded that a species-specific calibration is necessary when using any of these techniques to insure that accurate estimates of sap flux density are obtained, at least until a physical basis for an error correction can be proposed.

Full reference details:

    Steppe K., De Pauw D.J.W., Doody T.M. and Teskey R.O. (2010). A comparison of sap flux density using thermal dissipation, heat pulse velocity and heat field deformation methodsAgricultural and Forest Meteorology150(7-8), 1046-1056. 
Facebook Twitter Linkedin Email

Phyto-IT co-authors a paper on Sap Flow Tool

Wednesday, November 11th, 2009

A paper on the use of Phyto-IT’s Sap Flow Tool, co-authored by Dirk De Pauw (Phyto-IT), has been published. This work was presented at the 7th International Workshop on Sap Flow which which was held in Seville, Spain from October 21th-24th 2008. The paper deals with the measurement, calculation and analysis of radial sap flow profiles.

Full reference details:

    Steppe K., De Pauw D.J.W., Saveyn A., Tahon P., Nadezhdina N., Cermak J. and Lemeur R. (2009). Radial Sap Flux Profiles and Beyond: an Easy Software Analysis ToolActa Horticulturae846, 85-92. 
Facebook Twitter Linkedin Email

Phyto-IT co-authors a paper on hydraulic redistribution

Wednesday, November 11th, 2009

A paper dealing with hydraulic redistribution in trees, co-authored by Dirk De Pauw (Phyto-IT), was published in New Phytologist. During a dry period, a 53-year-old Douglas-fir tree was subjected to localized irrigation on one side of the tree. This created heterogeneous soil water conditions which resulted in a stem-mediated hydraulic redistribution of the water to the other (non-irrigated) side of the tree. In addition, bidirectional flow in the dry root was also observed. This illustrates that water can simultaneously flow in opposite directions in the same part of a tree.

Full reference details:

    Nadezhdina N., Steppe K., De Pauw D.J.W., Bequet R., Cermak J. and Ceulemans R. (2009). Stem-mediated hydraulic redistribution in large roots on opposing sides of a Douglas-fir tree following localized irrigationNew Phytologist184(8), 932-943.
Facebook Twitter Linkedin Email

7th International Workshop on Sap Flow

Tuesday, October 21st, 2008

Phyto-IT attended the 7th International Workshop on Sap Flow which was held in Seville, Spain from October 21th-24th 2008. This workshop covered methodologies to measure sap flow in plants, and how these measurements can be used to better understand physiological processes, mainly those related to water use and water consumption.

Facebook Twitter Linkedin Email