Fig. 1

Smoothed uniformity map of the landrace ‘Lefkada’ trial at inter-plant distance of 0.50 m (a) and 0.80 m (b). The colored legend (above left) gives the corrected yield range of small plot units corresponding to the respective delineated area. At 0.50 m the whole area is divided into 32 square plots including their actual mean yield per plant (g); the within-circle numbers represent the best scenario of randomization of eight entries into four complete blocks. At 0.80 m the potential honeycomb arrangement of seven entries (HD7) constructed on k value of 2 (left), as well as of 19 entries (HD19) constructed on k value of 7 (right) are illustrated (fully lengthwise and partly breadthwise). Entries are always positioned on a net pattern of equilateral triangles. Each circle of both sets corresponds to a fixed complete block of seven (the interior) or 19 (the middle) or 31 (the exterior) entries, evenly repeatable across the entire experimental area (Based on Fasoulas & Fasoula [18])