Fig. 5

Root growth angle of seminal roots in 12-day-old seedlings of ‘Gondar’ landrace with narrow growth angle (a) and ‘Obsa’ cultivar with wide growth angle (b) measured as the linear distance (red segment) of the two most external roots (green segments) at 3.5 cm from the tip of the seed and later converted into degrees. Example of a root sample ready for image capturing for further root length and root growth angle measurement (c)