Fig. 6
From: An automated, cost-effective and scalable, flood-and-drain based root phenotyping system for cereals
Comparison of the basic parameters of root growth of 14-day-old seedlings of barley cv. ‘Sebastian’ that were grown in the developed system using vermiculite and soda-lime glass beads of different size fractions. The measured parameters included: A Total root length. B Total surface area. C Average root diameter. D Total root volume. E Average root density. Fragments of the root system images of plants that were grown on the following substrates: soda-lime glass beads of 1 mm (F), 2 mm (G), 3 mm (H) and vermiculite (I). Scale-bars included in the F–I graphs represent 50 mm. Different letters above the bars indicate statistically significant differences (p < 0.05) between groups