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Proceedings Paper

Measurement of seedling growth rate by machine vision
Author(s): M. Scott Howarth; Phillip C. Stanwood
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Paper Abstract

Seed vigor and germination tests have traditionally been used to determine deterioration of seed samples. Vigor tests describe the seed potential to emerge and produce a mature crop under certain field conditions and one measure is seedling growth rate. A machine vision system was developed to measure root growth rate over the entire germination period. The machine vision measurement technique was compared to the manual growth rate technique. The vision system provided similar growth rate measurements as compared to the manual growth rate technique. The average error between the system and a manual measurement was -0.13 for the lettuce test and -0.07 for the sorghum test. This technique also provided an accurate representation of the growth rate as well as percent germination.

Paper Details

Date Published: 12 May 1993
PDF: 10 pages
Proc. SPIE 1836, Optics in Agriculture and Forestry, (12 May 1993); doi: 10.1117/12.144027
Show Author Affiliations
M. Scott Howarth, Colorado State Univ. and USDA Agricultural Research Service (United States)
Phillip C. Stanwood, Colorado State Univ. and USDA Agricultural Research Service (United States)


Published in SPIE Proceedings Vol. 1836:
Optics in Agriculture and Forestry
James A. DeShazer; George E. Meyer, Editor(s)

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