An improved system of subjecting plants to water stress

An improved system of plant cultivation at stable and specific levels of polyethyleneglycol (PEG, mol. mass 1400–1600) — induced water stress has been described. To set up this system a perforated tubular glass vessel containing soil to support seedling growth was wrapped externally first with a layer of macroporous silica gel-G and then with three layers… (More)