Lab Analysis

Lab analyses may include: a) determination of root architectural parameters such as root classes, angles, whorls, and others; b) root length at fixed intervals of root depth (e.g. 0-10 cm, 10-20 cm, 20-30 cm, up the maximum depth of the crown)- for roots of maize and common bean we have found that crowns retain their original angles and depths following excavation; c) dry root mass per segment mentioned in b). Other determinations like total root length, and root length per volume for different diameter classes may be determined using winrhizo (see relevant section of this web site). preserved roots are also useful for anatomical analysis, evaluation of mycorrhizal colonization, etc. We have found that careful excavation permits evaluation of intact root hairs in segments of the preserved crowns.

Measuring roots

Contributor: Soares A. Xerinda