Pesquisa Agropecuária Brasileira
Print version ISSN 0100-204X
NEVES, CARMEN SILVIA VIEIRA JANEIRO; DECHEN, ANTONIO ROQUE; MEDINA, CRISTIANE DE CONTI and GUIMARAES, MARIA DE FÁTIMA. Comparison of citrus rooting evaluation methods using root images in soil profiles and root weight. Pesq. agropec. bras. [online]. 2000, vol.35, n.12, pp. 2537-2541. ISSN 0100-204X. http://dx.doi.org/10.1590/S0100-204X2000001200025.
A digitized image method was compared with a standard washing technique for measuring citrus roots in the field. Video pictures of roots were taken in a soil profile. The profile area analyzed was defined by iron rings, which were also used to remove the roots to determine their dry weight. The roots presented in the pictures were quantified using SIARCS software developed by Embrapa. The root length and area determined by digital images provided a good estimate of root quantity present in the profile.