+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

A method of estimating the total length of root in a sample

A method of estimating the total length of root in a sample

J Appl Ecol 3(1): 139-145

The roots are laid out on a flat surface, and a count is made of the number of intersections between the roots and random straight lines. Then the total length = [pi]NA/2H, where N is the number of intersections, A the area within which the roots lie, and H the total length of the straight lines. Details are given of a technique in which a microscope hair-line provides the straight lines. In practical tests the method was compared with direct measurement, and with direct measurement of a sub-sample followed by weighing of the sub-sample and the remainder. The results from the different methods agreed well. The line intersection method was much quicker than direct measurement, and in a given time achieved higher precision than measurement of a sub-sample and weighing.

Accession: 014314227

Download citation: RISBibTeXText

DOI: 10.2307/2401670

Download PDF Full Text: A method of estimating the total length of root in a sample

Related references

An instrument for estimating the total length of root in a sample. Journal of Applied Ecology 11(1): 309-314, 1974

Errors in estimating total root length by sub samples method. Plant & Soil 115(1): 129-134, 1989

The determination of the total root length of a sample by an automatic method. Phytotronic Newsletter (20): 30-37, 1979

A simple and reliable method of estimating root length. Nematologica 27(1): 119-121, 1981

Estimating the total number of alleles using a sample coverage method. Genetics 159(3): 1365-1373, 2001

Estimating root length density by the core-break method. Soil Science Society of America journal 53(5): 1595-1597, 1989

A method of estimating the root length of cereals per unit volume of soil. Mitteilungen der Deutschen Bodenkundlichen Gesellschaft 55(2): 637-642, 1987

Non-destructive stereological method for estimating the length of rigid root systems. Biologia Plantarum (Prague) 40(2): 311-316, 1997-, 1998

A test of a modified line intersect method of estimating root length. Journal of Ecology 63(3): 995-1001, 1975

Estimating femur and tibia length from fragmentary bones: an evaluation of Steele's (1970) method using a prehistoric European sample. American Journal of Physical Anthropology 89(3): 333-345, 1992

A stereological method for estimating the total length and size of myelinated fibers in rat cerebral cortex. Journal of Neuroscience Methods 172(1): 21-26, 2008

Determination of total root length by the indirect method. Arhiv za Poljoprivredne Nauke 44(155): 351-359, 1983

A users guide to estimating total mortality rates from length frequency data with the method of Fournier and Breen. Canadian Technical Report of Fisheries and Aquatic Sciences, i-iii, 1-63 No. 1239, 1984

A stereological method for estimating the total length and size of myelin fibers in human brain white matter. Journal Of Neuroscience Methods. 73(2): 200, 1997