01165naa a2200193 a 450000100080000000500110000800800410001910000140006024501180007426000090019252006280020165000090082970000170083870000200085570000140087570000160088970000170090577300490092216503452023-03-16       2000    bl uuuu     u00u1 u    #d1 aCOSTA, C.  aA sampling method for measurement of large root rystems with scanner-based image analysis.h[electronic resource]  c2000  aMeasurement of relatively small(&lt100m total length, &lt6g fresh wt.) root systems has been simplified by image analysis, but measuring larger root systems remains time consuming and inaccurate. Reliability of root estimation can be improved through identification of effective sampling methods. We devised a system for the collection of homogeneous root subsamples by air-stirring in water. We optimized the subsampling technique and used a scanner-based image analysis system to measure total root length, mean root diameter, and root surface area of tree maize(Zea mays L.) genotypes with contrasting root morphologies:  aRaiz1 aDWYER, L. M.1 aHAMILTON, R. I.1 aHAMEL, C.1 aNANTAIS, L.1 aSMITH, D. L.  tAgronomy Journalgv.92, n.4, p.621-627, 2000