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 six-row 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.
Abdolshahi, R., Nazari, M., Safarian, A., Sadathossini, T.S., Salarpour, M., Amiri, H. 2015. Integrated selection criteria for drought tolerance in wheat (Triticum aestivum L.) breeding programs using discriminant analysis. Field Crop Res. 174:20–29.
Allen, R.G., Pereira, L.S., Raes, D., Smith. M. 1998. Crop evapotranspiration: Guidelines for computing crop requirements. FAO Irrig. Drain. Paper 56:41–51.
Barati, M., Majidi, M.M., Mirlohi, A., Pirnajmodini, F., Sharif-Moghaddam, N. 2015. Response of cultivated and wild barley germplasm to drought stress at different developmental stages. Crop Sci. 55:2668–2681.
Barati, M., Majidi, M.M., Mostafavi, F., Mirlohi, A., Safari, M., Karami, Z. 2018. Evaluation of wild barley species as possible sources of drought tolerance for arid environments. Plant Genet. Resour. 16:209–217.
Bouslama, M., Schapaugh, W.T. 1984. Stress tolerance in soybean. Part 1: evaluation of three screening techniques for heat and drought tolerance. Crop Sci. 24:933–937.
Fernandez, G.C.J. 1993. Effective selection criteria for assessing plant stress tolerance. In: Kuo, C.C. (ed.), Proc. Int. Symp. Adapt. Food Crops Temp. Water Stress, Shanhua, Taiwan. Pp. 257–270
Harlan, J.R., Zohary, D. 1966. Distribution of wild wheat and barley. Science 153: 1074–1080.
Ivandic, V., Hackett, C.A., Zhang, Z., Staub, J.E., Nevo, E., Thomas, W.T.B., Forster, B.P. 2000. Phenotypic responses of wild barley to experimentally imposed water stress. J. Exp. Bot. 51:2021–2029.
Jedmowski, C., Ashoub, A., Momtaz, O., Brüggemann, W. 2015. Impact of drought, heat, and their combination on chlorophyll fluorescence and yield of wild barley (Hordeum spontaneum). J. Bot. 2015:1–9.
Ma, X., Li, C., Wang, A., Duan, R., Jiao, G., Nevo, E., Chen, G. 2012. Genetic diversity of wild barley (Hordeum vulgare ssp. spontaneum) and its utilization for barley improvement. Sci. Cold Arid Reg. 4:453–461.
Naim-Feil, E., Toren, M., Aubert, G., Rubinstein, M., Rosen, A., Eshed, R., Sherman, A., Ophir, R., Saranga, Y., Abbo, S. 2017. Drought response and genetic diversity in, a wild relative of domesticated pea. Crop Sci. 57:1145–1159.
Nevo, E., Beiles, A., Kaplan, D., Storch, N., Zohary, D. 1986. Genetic diversity and environmental associations of wild barley, Hordeum spontaneum (Poaceae), in Iran. Plant Syst. Evol. 153:141–164.
Nevo, E., Chen, G. 2010. Drought and salt tolerances in wild relatives for wheat and barley improvement. Plant Cell Environ. 33:670–685.
SAS Institute, 2008. User’s guide. Release 9.2.SAS Inst. Inc., Cary, NC.
Shakhatreh, Y., Kafawin, O., Ceccarelli, S., Saoub, H. 2001. Selection of barley lines for drought tolerance in low rainfall areas. J. Agron. Crop Sci. 186:119–127.
Shakhatreh, Y., Haddad, N., Alrababah, M., Grando, S., Ceccarelli, S. 2010. Phenotypic diversity in wild barley (Hordeum vulgare L. ssp. spontaneum (C. Koch) Thell.) accessions collected in Jordan. Genet. Resour. Crop Evol. 57:131–146.
Talamè, V., Sanguineti, M.C., Chiapparino, E., Bahri, H., Salem, M.B., Forster, B.P., Ellis, R.P., Rhouma, S., Zoumarou, W., Waugh R., Tuberosa, R. 2004. Identification of Hordeum spontaneum QTL alleles improving field performance of barley grown under rainfed conditions. Ann. Appl. Biol. 144:309–319.
Tuberosa, R. 2012. Phenotyping for drought tolerance of crops in the genomics era. Front. Physiol. 3:347–355.
Van Oosterom, E.J., Acevedo, E. 1992. Adaptation of barley (Hordeum vulgare L.) to harsh Mediterranean environments. Euphytica 62:29–38.
Zhao, J., Sun, H., Dai, H., Zhang, G., Wu, F. 2010. Difference in response to drought stress among Tibet wild barley genotypes. Euphytica 172:395–403.
Communicated by V. Korzun
Electronic supplementary material
About this article
Cite this article
Barati, M., Majidi, M.M., Mirlohi, A. et al. Potential of Iranian Wild Barley (Hordeum vulgare ssp. spontaneum) in Breeding for Drought Tolerance. CEREAL RESEARCH COMMUNICATIONS 46, 707–716 (2018). https://doi.org/10.1556/0806.46.2018.040
- tolerance index
- wild relatives
- grain yield