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United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
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Full-Text Articles in Life Sciences
Semiautomated X-Y-Plotter-Based Method For Measuring Root Lengths, Wallace Wilhelm, J. M. Norman, R. L. Newell
Semiautomated X-Y-Plotter-Based Method For Measuring Root Lengths, Wallace Wilhelm, J. M. Norman, R. L. Newell
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Root-length measurements are an important aspect of many agronomic research programs. Several automated systems have been reported which use modifications of the line-intersect technique to estimate root length; however, most of these systems are very costly. This paper describes an inexpensive automated system using a modified line-intersect technique to estimate root length. An X-Y plotter was used to move a light sensor in a grid pattern through the projected photographic image of a root system, recording intersections with an event counter. Compared to manual counting using the Line-intersect technique, the system described accurately estimated root length of samples up to …
Semiautomated X-Y-Plotter-Based Method For Measuring Root Lengths, Wallace Wilhelm, J. M. Norman, R. L. Newell
Semiautomated X-Y-Plotter-Based Method For Measuring Root Lengths, Wallace Wilhelm, J. M. Norman, R. L. Newell
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Root-length measurements are an important aspect of many agronomic research programs. Several automated systems have been reported which use modifications of the line-intersect technique to estimate root length; however, most of these systems are very costly. This paper describes an inexpensive automated system using a modified line-intersect technique to estimate root length. An X-Y plotter was used to move a light sensor in a grid pattern through the projected photographic image of a root system, recording intersections with an event counter. Compared to manual counting using the Line-intersect technique, the system described accurately estimated root length of samples up to …