Identification of drought stress tolerant lines in bread wheat

Mohammadi, Fatemeh; Mohammadi-nejad, Ghasem; Nakhoda, Babak

doi:10.22077/escs.2016.235

Document Type : Original Article

Authors

¹ Graduated MSc Student of plant Breeding, Shahid Bahonar University of Kerman- Iran

² Asist prof. Dep of Agronomy & plant Breeding, college of Agriculture, Shahid Bahonar university of Kerman-Iran

³ Assistant Prof., Dep. of Molecular Physiology, Agricultural Biotechnology Research Institute of Iran (ABRII), Karaj, Iran

https://doi.org/10.22077/escs.2016.235

Abstract

In order to identify the drought tolerant lines of wheat, 67 recombinant inbred lines with their parents (Roshan and Superhead) were studied in two separate experiments based on randomized complete block design with two replications under normal and drought stress conditions during 2011-2012. For identification of drought tolerant lines, seven drought-tolerance/susceptibility indices including stress susceptibility index (SSI), mean productivity (MP), tolerance (TOL), stress tolerance index (STI), geometric mean productivity (GMP), yield index (YI), yield stability index (YSI), the stress tolerance score and factor analysis were used. Analysis of variance showed significant differences among lines for grain yield and drought-tolerance/susceptibility indices under stress and non-stress conditions. The stress tolerance score was successful in separating lines of group A from other groups (B, C, and D). Based on the stress tolerance score and factor analysis, lines 139, 69, 19, 23, 149, 117, 27, 181 and 94 were selected as tolerant lines for further studies.

Keywords

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Environmental Stresses in Crop Sciences

Identification of drought stress tolerant lines in bread wheat

References

References

Volume 8, Issue 2 - Serial Number 2
March 2016
Pages 249-258

Identification of drought stress tolerant lines in bread wheat

References

References

Volume 8, Issue 2 - Serial Number 2March 2016Pages 249-258

Volume 8, Issue 2 - Serial Number 2
March 2016
Pages 249-258