Materials
- PVC pipe rings, (cut from a pipe and sanded), diameter: 3 inch (7 cm), height: 0.6 inch (1.6 cm), 1 for each bag
- Nylon stockings "knee highs", 1 for each bag
- Anion exchange resin: +/- 50 gram per bag. We used: Lewatit GW66 Cl- anion exchange resin. If you also like to extract NH4, then also use a cation exchange resin
- Rope, appr. 20 inch (50 cm) per bag
Method
- Soak the nylon stockings in 0.3 M HCl (= 0.3 N HCl: 250 ml conc. HCl (36.5 - 38.0%) per 10 liter H2O) for about 10 min. Rinse in demineralised water three times.
- Tie a knot in the closed end of the stocking, insert the PVC ring, fill the PVC ring with the resin on a scale, pull the stocking over the ring and tie another knot. For stronger bags, pull the open end back over the bag to make a double layer of stocking over the resin. Tie a piece of rope to one end of the bag.
- Be careful the resin does not dry out! Store the resin bags in a closed container until use, and add a little demineralised water if necessary.
Spotlight
Study shows ‘steep, cheap and deep’ roots help corn plants deal with drought
Jagdeep Sidhu and Sam Walker win awards at 2022 CSA (Crop Science, Soil Science, Agronomy Societies) meetings
Jonathan Lynch recognized as highly cited researcher in 2022 by Clarivate
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
Spotlight
Study shows ‘steep, cheap and deep’ roots help corn plants deal with drought
Jagdeep Sidhu and Sam Walker win awards at 2022 CSA (Crop Science, Soil Science, Agronomy Societies) meetings
Jonathan Lynch recognized as highly cited researcher in 2022 by Clarivate
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