Evaluation of Diversity and Traits Correlation in Spring Wheat Cultivars under Drought Stress

Authors

  • Mohammad Reza NAGHAVI Payame Noor University (IR)
  • Mahmoud TOORCHI University of Tabriz, Department of Plant Breeding and Biotechnology, Iran
  • Mohammad MOGHADDAM University of Tabriz, Department of Plant Breeding and Biotechnology, Iran
  • Mohammad Reza SHAKIBA University of Tabriz, Department of Plant Eco-Physiology, Iran

DOI:

https://doi.org/10.15835/nsb739592

Keywords:

agro-morphological trait; correlation; drought stress; factor analysis; wheat

Abstract

In order to study of diversity and classify agro-morphological characters under normal irrigation and drought stress in spring wheat cultivars, 20 cultivars were evaluated in the research farm of University of Tabriz, Iran. According to the results, significant correlation was found between grain yield and number of spikes per plant, number of tiller per plant, number of fertile tillers, spike length, root length, root number, root volume, root diameter and root dry weight under both conditions. Moreover, 1,000 grain weight and plant dry weight had significant positive correlation with grain yield under drought stress. Factor analysis detected four and two factors which explained 96.77% and 90.59% of the total variation in normal irrigation and drought stress conditions, respectively. In drought stress condition the first factor justified 69.52% of total variation and was identified as yield factor. The second factor explained 21.07% of total variation and represented the biomass and plant height factor. Cluster analysis was based on the four and two factors obtained. According to the amount of factors for clusters obtained under drought stress, ‘Kavir’, ‘Niknejhad’, ‘Moghan 3’, ‘Darya’ and ‘Marvdasht’ were identified as the most drought tolerant cultivars. Other cluster was comprised of ‘Bahar’, ‘Pishtaz’, ‘Bam’, ‘Sepahan’, ‘Sistan’, ‘Pars’ and ‘Sivand’ and was named as the most sensitive under drought stress. Tolerant cultivars identified within the study can be used for direct culture or as genitors in breeding programs.

Metrics

Metrics Loading ...

Downloads

Published

2015-09-21

How to Cite

NAGHAVI, M. R., TOORCHI, M., MOGHADDAM, M., & SHAKIBA, M. R. (2015). Evaluation of Diversity and Traits Correlation in Spring Wheat Cultivars under Drought Stress. Notulae Scientia Biologicae, 7(3), 349–354. https://doi.org/10.15835/nsb739592

Issue

Section

Research articles
CITATION
DOI: 10.15835/nsb739592

Most read articles by the same author(s)