|
|||||
|
|
A machine for determining root length |
|
| Authors: | D. Richards F. H. Goubran W. N. Garwoli M. W. Daly |
| Affiliation: | (1) Victorian Department of Agriculture Burwood Highway, Horticultural Research Institute, 3180 Knoxfield, Victoria, Austria;(2) Department of Communication and Electronic Engineering, Royal Melbourne Institute of Technology, 124 La Trobe Street, 3000 Melbourne, Victoria, Australia |
| Abstract: | Summary A machine for determining the root length of a sample is described. The machine is basically an opto-electronic scanner. Root segments are cut and placed in water on a glass plate (375×375 mm). The interruption of a light beam moving across the root sample is detected by a photo-diode and the total root length computed. Using this machine a root sample can be measured in less than 3 minutes. Detailed calibration was only conducted up to 50 m although samples as large as several hundred metres can be measured using this machine.The machine has a high degree of accuracy comparable with or better than other reported methods for determining root length. |
| Keywords: | Roots Growth Measurement Root length Electronics |
| 本文献已被 SpringerLink 等数据库收录！ | |