Cereal Research Communications

, Volume 37, Issue 2, pp 261–268 | Cite as

Relationship between root and yield morphological characters in rainfed low land rice (Oryza sativa L.)

  • A. KanbarEmail author
  • M. Toorchi
  • H. E. Shashidhar
Open Access


Understanding the relationship between root system and yield related traits is an important objective in crop breeding programs. Canonical correlation analysis has been adopted to study the strength of association between the root morphological traits and grain yield components under low-moisture stress and well-watered conditions and to find the root morphological characters that have the largest influence on grain yield and its components under the two conditions. This study revealed that root to shoot length and weight ratios and root dry weight were had the largest effect on plant height, shoot dry weight and grain yield under well-watered condition. Under low moisture stress, maximum root length and root number were also important for improving grain yield and panicle length. The interrelationships clearly identified the importance of root to shoot length and weight ratios and root dry weight under well-watered condition. While, maximum root length and root number are a better combination under low moisture stress condition.


canonical correlation drought rice (Oryza sativa L.) root-yield traits 


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© Akadémiai Kiadó, Budapest 2009

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Field Crops, Faculty of AgricultureUniversity of DamascusDamascusSyria
  2. 2.Department of Crop Production and Breeding, Faculty of AgricultureUniversity of TabrizTabrizIran
  3. 3.Department of Genetics and Plant BreedingUniversity of Agricultural SciencesBangaloreIndia

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