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Computational analysis of rice (Oryza sativa L.) panicle topology and ripening

Published online by Cambridge University Press:  24 July 2007

Jordan O. Hay  and
Roger M. Spanswick
Jordan O. Hay
Affiliation:
Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York14853-5701, USA
Roger M. Spanswick*
Affiliation:
Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York14853-5701, USA
*
*Fax: +1 607 255 4080, Email: rms6@cornell.edu
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Abstract

The processes involved in rice (Oryza sativa L.) panicle ripening vary with time and topological grain position. Methods to describe the functioning and connectivity of the grains on a panicle could aid the analysis of these processes. Hence, we addressed the difficulty of encoding and representing panicle topology. Array-based decomposition and computational methods were developed to encode and analyse panicle topology and grain traits. The technique, applied to the analysis of dry matter accumulation, clearly represented the basipetal succession of asynchronous grain ripening on a panicle. These methods should be useful for the spatial and temporal analysis of a number of panicle processes and attributes, including molecular ones, involved with ripening.

Keywords

caryopsiscomputational analysisgrain fillingOryza sativapanicle architecturepanicle topologyrice
Type
Research Analysis
Information
Seed Science Research , Volume 16 , Issue 4 , December 2006 , pp. 243 - 250
Copyright
Copyright © Cambridge University Press 2006

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