Fig. 3.

Variation in root morphological traits in the three root sections among 184 wheat genotypes grown in a semi-hydroponic phenotyping platform 35 days after transplanting. Genotype data were combined for each section. The boxplots were confined to the first and third quartiles with the middle lines being the median. Four root traits were plotted: (a) root length, (b) root surface area, (c) root volume, and (d) root length density. Three root sections: s1, 0–20 cm layer; s2, 20–40 cm layer; and s3, 40–110 cm layer