VSI PhenoRacks. Lights Out - Knowledge of the effects of light "pollution" on root systems and root and rhizosphere microbial communities makes it necessary to keep roots in seed germination pouches / growth pouches, high throughput soil-free phenotyping and bioassay systems, in the dark. As a practical and affordable solution to keep the light out and your roots in the dark, we have developed new PhenoRacks for Growth Pouches! Visit our website or contact us to learn more about cost-effective, soil-free HT root phenotyping setups!