Potential of Iranian wild barley (Hordeum vulgare ssp. spontaneum) in breeding for drought tolerance

M. Barati; M.M. Majidi; A. Mirlohi; M. Safari; F. Mostafavi; Z. Karami

doi:10.1556/0806.46.2018.040

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Cereal Research Communications

Volume/Issue:: Volume 46: Issue 4

Potential of Iranian wild barley (Hordeum vulgare ssp. spontaneum) in breeding for drought tolerance

Authors:

M. Barati

M. Barati Isfahan University of Technology, Isfahan, 84156-83111, Iran

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M.M. Majidi

M.M. Majidi Isfahan University of Technology, Isfahan, 84156-83111, Iran

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A. Mirlohi

A. Mirlohi Isfahan University of Technology, Isfahan, 84156-83111, Iran

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M. Safari

M. Safari Isfahan University of Technology, Isfahan, 84156-83111, Iran

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F. Mostafavi

F. Mostafavi Isfahan University of Technology, Isfahan, 84156-83111, Iran

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Z. Karami

Z. Karami Shahrekord University, Shahrekord, 8818634141, Iran

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Pages:: 707–716

Online Publication Date:: Dec 2018

Publication Date:: 01 Dec 2018

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.46.2018.040

Keywords:: barley; tolerance index; wild relatives; grain yield

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The vast genetic resources of wild barley (Hordeum vulgare ssp. spontaneum, hereafter WB) may hold unique assets for improving barley (H. vulgare ssp. vulgare) cultivars for drought stress. To evaluate genetic potential and characterization of variation among a diverse collection of barley and WB genotypes, mostly originated from Iran, a field experiment was performed under three moisture environments (control, mild and intense drought stress) during two years (2012–2014). Considerable variation was observed among the wild and cultivated genotypes for drought tolerance and agronomic traits. Principal component analysis (PCA) grouped genotypes studied into three groups (WB, two-row barley and sixrow barley groups). However, Iranian and foreign WB genotypes were not completely separated, showing a high variation within both gene pools. The high significance of genotype by environment interaction, confirms importance of using accurate target environments for drought stress breeding. A number of WB genotypes with the highest values of the number of tillers, number of seed per spike, seed weight, grain yield and yield stability index under stressed environments were identified as superior genotypes. Most of these genotypes originate from Iran, highlighting the importance of this germplasm in barley breeding.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)