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A Test of a Modified Line Intersect Method of Estimating Root Length
Journal of Ecology
Vol. 63, No. 3 (Nov., 1975), pp. 995-1001
Published by: British Ecological Society
Stable URL: http://www.jstor.org/stable/2258617
Page Count: 7
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A method of length estimation based on Newman's (1966) line intersect principle was developed and tested during a programme of root growth investigation in wheat. The length of sample roots when spread over a flat surface was found to relate to the number of intercepts made with the vertical and horizontal lines of an underlying grid. The versatility of the method was tested using 1/2 × 1/2, 1 × 1, 2 × 2 and 3 × 3 cm grid square sizes. Length estimates to 10 m required a maximum of 5-6 min for coefficients of variation of 5% or less.
Journal of Ecology © 1975 British Ecological Society