Morphological and architectural development of root systems in sorghum and maize

Singh, V, van Oosterom, EJ, Jordan, DR, Messina, CD, Cooper, M and Hammer, GL (2010) Morphological and architectural development of root systems in sorghum and maize. Plant and Soil, 333 1-2: 287-299. doi:10.1007/s11104-010-0343-0

Author Singh, V
van Oosterom, EJ
Jordan, DR
Messina, CD
Cooper, M
Hammer, GL
Title Morphological and architectural development of root systems in sorghum and maize
Journal name Plant and Soil   Check publisher's open access policy
ISSN 0032-079X
Publication date 2010-08
Sub-type Article (original research)
DOI 10.1007/s11104-010-0343-0
Volume 333
Issue 1-2
Start page 287
End page 299
Total pages 13
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Collection year 2011
Language eng
Abstract Root systems determine the capacity of a plant to access soil water and their architecture can influence adaptation to water-limited conditions. It may be possible to associate that architecture with root attributes of young plants as a basis for rapid phenotypic screening. This requires improved understanding of root system development. This study aimed to characterise the morphological and architectural development of sorghum and maize root systems by (i) clarifying the initiation and origin of roots at germination, and (ii) monitoring and quantifying the development of root systems in young plants. Three experiments were conducted with two maize and four sorghum hybrids. Sorghum produced a sole seminal (primary) root and coleoptile nodal roots emerged at the 4th–5th leaf stage, whereas maize produced 3–7 seminal (primary and scutellum) roots and coleoptile nodal roots emerged at the 2nd leaf stage. Genotypic variation in the flush angle and mean diameter of nodal roots was observed and could be considered a suitable target for large scale screening for root architecture in breeding populations. Because of the relatively late appearance of nodal roots in sorghum, such screening would require a small chamber system to grow plants until at least 6 leaves had fully expanded. © 2010 Springer Science+Business Media B.V.
Keyword Nodal root
Root angle
Root architecture
Seminal root
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 30 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 08 Aug 2010, 00:01:32 EST