- Follow the procedures for Root hair length measurements presented above, from step 1 through 7.
- In 3 d task, instead of selecting a line icon from the Scion Image Tools Menu, in the left of your computer screen, select square icon. Then you draw a reasonable area within root surface area, but capturing an area with a representative distribution of root hairs.
- Record the value of selected root surface area by hitting 1 while holding Apple key (or Control key, for Window users), each time you make a root hair measurement.
- Then, visually count the total number of roots within selected area. The number represents the root hair density, as number of root hairs per total root area selected.
- To see the complete sheet of recorded data, go to Analyze‡ Show Results. The results window will appear on the right upper side of the screen. Then you can copy this data to a spreadsheet program, like Excel.
- Transform the data (using arithmetic) to convert this value to number of roots per unit area you wish. (Usually, we use: number of root hairs per mm2).
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Spotlight
Jonathan Lynch recognized as highly cited researcher in 2021 by Clarivate
Publication receives award from Crop Science Society of America
Tools for breeding cowpea with better roots highlighted in CSA news article
Breeding Beans for Better Roots
Professor Kathleen Brown retires after 41 years
Amelia Henry receives humanitarian award
Jagdeep Sidhu receives research award
Roots lab research focus of podcast from West German Public Radio
Newly discovered trait helps plants grow deeper roots in dry, compacted soils | Penn State University
CSA news article on Roots Lab work with bean breeding
Jagdeep Sidhu Receives College Research Funding
Jonathan Lynch recognized as Highly Cited Researcher by Clarivate
Graduate student receives special award for early career contributions to ASPB
LAT root image wins photo competition of Egyptian Academy of Scientific Research
Graduate student awarded Outstanding Agricultural Graduate Student Award from AASIO
News story on bean root architecture reaches 6 million people, worth $240,000
Bean root architecture results highlighted in CSSA News
Field work proceeds with physical distancing, safety precautions