Record Details

Digital Image Analysis: Simplifying quantification of trails of Root Morphology and Architecture for different sorghum varieties.

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Digital Image Analysis: Simplifying quantification of trails of Root Morphology and Architecture for different sorghum varieties.
Not Available
 
Creator Maruthi Vegapareddy, Goetz M.Richter and Keith W.T. Goulding.
 
Subject Digital image, Root morphology, Root architecture, Sorghum, Rhizotrons
 
Description Not Available
Rhizotrons are effective for screening traits of root morphology and architecture prior to field
experimentation. The objectives of this study were to improve the Rhizotron method by comparing digital
imaging of root systems with conventional root scans and to apply it to five different sorghum varieties.
Plants were grown in duplicate in inclined, slim rhizotrons filled with a sandy top and subsoil at field
capacity (FC) and 50% available water content (AWC) in a split-plot design in the glasshouse (16/24 °C).
Root growth was monitored weekly and roots were washed out after 42 and 90 days using a pin-board (25
mm grid). After digital imaging of the root architecture the roots were sub-sampled for scanning with
WinRHIZO to quantify the baseline root parameters. Undisturbed rhizotron images showed differences in
root advancement rates but revealed little of root architecture. Digital images of increasing resolution (9.1
to 12 Megapixel) and optimized contrast between roots and background, improved the recovery rate of
scanned roots from 70% (r2
=0.70). Root size distributions from pin-board images
moved towards larger root diameters when compared to the root scans. Sorghum varieties bred for rainy
and post-rainy season showed very different rooting patterns (angle of adventitious roots; root distribution
in the profile) but similar root development (1st and 2nd order roots). Further analysis, e.g. links and
development, using the permanent records of pin-board images, is discussed.
Not Available
 
Date 2023-01-30T06:17:16Z
2023-01-30T06:17:16Z
2009
 
Type Research Paper
 
Identifier Maruthi Vegapareddy, Goetz M.Richter and Keith W.T. Goulding. (2009). Digital Image Analysis: Simplifying quantification of trails of Root Morphology and Architecture for different sorghum varieties. short paper Published in International Symposium on "Root Research And Application" (RootRAP), 2-4 Sep,2009, Boku-Vienna, Austria.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/75861
 
Language English
 
Relation Not Available;
 
Publisher International Symposium on "Root Research And Application" (RootRAP)