The Classification of Root Systems

2006 ◽  
pp. 141-152
Author(s):  
Karin Erdmann ◽  
Mark J. Wildon
Keyword(s):  
Root Systems

scholarly journals Classification of arithmetic root systems

2009 ◽  
Vol 220 (1) ◽  
pp. 59-124 ◽  
Author(s):  
I. Heckenberger
Keyword(s):  
Root Systems

scholarly journals A technological approach to the morphofunctional classification of seedlings of 50 Brazilian forest species

2014 ◽  
Vol 36 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Gabriela Alves Lobo ◽  
Denise Garcia de Santana ◽  
Antonieta Nassif Salomão ◽  
Luciana Salazar Rehbein ◽  
Angélica Polenz Wielewicki
Keyword(s):  
Primary Root ◽  
Root Systems ◽  
Forest Species ◽  
Seedling Root ◽  
Technological Approach ◽  
Shoot System ◽  
Normal Seedling ◽  
Long Life ◽  
Great Mass

A technological approach to the morphofunctional classification of forest species seedlings defines the essential structures in the evaluation of germination testing and identifies changes in this structures that suggest abnormalities. The objective was to associate morphofunctional seedling classification to seed germination testing using official germination methods for 50 forest species from Amazon, Caatinga, Cerrado, Atlantic Forest and Pantanal biomes. Morphofunctional classification and abnormalities were defined using seedlings from 232 germination pre-tests and 1,160 samples that were formed for each species using seeds from distinct locations and with at least three levels of vigor. The phanero-epigeal germination with a non-developed epicotyl predominated among species (84%). Common in hypogeal germination, the development of the epicotyl occurred only in seedlings of Anadenanthera colubrina and Erythrina speciosa, both with epigeal germination. The need to supply and sustain the great mass produced in its long life cycle, the presence of the primary root was considered essential for the normal seedling classification of these forest species. Curled, stunted, necrotic, bifurcated primary root and those retained in the seed coat or in the fruit structures, were the main abnormalities of the seedling root systems. Damages to the shoot system were uncommon.

scholarly journals Computer Classification of Roots from Digitized Video Images

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 906E-906 ◽  
Author(s):  
Gary W. Stutte ◽  
Elizabeth C. Stryjewski
Keyword(s):  
Root Length ◽  
Space Shuttle ◽  
Root Systems ◽  
Image Capture ◽  
Pixel Intensity ◽  
Nih Image ◽  
Video Images ◽  
Computer Classification ◽  
Manual Methods

Manual methods for estimating root length are tedious and time-consuming. Image capture and analysis systems can be used to obtain precise measurements of root length and growth angle. Root activity can also be determined through analysis of the mean pixel intensity of a digitized image. Both commercial (the IBM-compatible ICAS System) and public domain (the Macintosh-based NIH Image) image capture and analysis software have been used to analyze intact root systems. Examples of ICAS classification of hydroponic and soil-grown root systems will be presented. Advantages of the NIH Image software for analysis of micro-gravity experiments aboard the Space Shuttle will be discussed.

scholarly journals THE CLASSIFICATION OF CONVEX ORDERS ON AFFINE ROOT SYSTEMS

2001 ◽  
Vol 29 (12) ◽  
pp. 5605-5630 ◽  
Author(s):  
Ken Ito
Keyword(s):  
Root Systems ◽  
Affine Root Systems

scholarly journals A classification of invertible subsets of affine root systems

1998 ◽  
Vol 131 (2) ◽  
pp. 133-142
Author(s):  
P. Check ◽  
C. Kriloff ◽  
D.R. Stephenson
Keyword(s):  
Root Systems ◽  
Affine Root Systems

scholarly journals Classification of Root Systems of Forbs of Grassland and a Consideration of Their Significance

Ecology ◽  
1958 ◽  
Vol 39 (3) ◽  
pp. 393-401 ◽  
Author(s):  
J. E. Weaver
Keyword(s):  
Root Systems
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