Fig. 2
From: Phenotyping seedlings for selection of root system architecture in alfalfa (Medicago sativa L.)
Root phenotypes of the four selected alfalfa populations. A Scanned images of 14-day-old alfalfa seedling roots grown under growth chamber conditions. B Digital photo images of roots obtained from 20-week-old field grown plants. The images are representative of progeny from the third (UMN3222 and UMN3234) and the fourth (UMN4561 and UMN4563) cycles of divergent selection. (Scale: white circle diameter = 4 cm)