Evaluation of drought tolerance in alfalfa (Medicago sativa) accessions under normal and dryland farming system

Document Type : Research Paper

Authors

1 M.Sc. Agriculture and Natural Resources Research Center, Agricultural Research, Education and Extension Organization (AREEO), Tabriz, I.R. Iran

2 Prof., Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, I.R. Iran.

Abstract

In order to evaluate drought tolerance of alfalfa (Medicago sativa), 49 accessions of the species were examined in two separate experiments using simple lattice designs under normal and dryland farming system during 2005-2007 in Tabriz, Iran. Forage dry matter yield was evaluated during two years. Results of combined analysis showed significant differences among the genotypes and among the years. Means of forage dry matter yield were 9.01 and 4.94 ton/h under irrigation and dryland farming systems, respectively. Cluster analysis correctly distributed the genotypes in the relevant groups based on yield and STI Index. Group 3 with genotypes of 14, 25, 37, 32, 11, 13 and 10 with average yield of 6.42 ton/h and STI= 0.95 was recognized as drought tolerant group. Based on stress intensity SI=0.452, Stress Tolerance Index (STI) and Stress Tolerance (TOL), genotypes 14 (Khoramabad) and 32 (Faridan) with average values of 8.74 and 7.26 ton/h respectively had the highest production in dryland farming system, that were recognized as drought tolerant accessions.

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References

Ehdaie, B., 1993. Selection for drought resistance in breed wheat. First Iranian Congress on Crop Production and Breeding. Karaj-Iran. p.43-62.
- Entz, M.H. and Flower, D.B., 1990. Differential agronomic responses of winter wheat cultivars to pre-anthesis environmental stress. Crop Science, 30: 1119-1123.
- Esfandiary, S., Hasanli, A.M., Safari, H. and Farshadfar, M., 2008. Study on drought resistance of five annual Medicago sativa in Kermanshah province. Iranian Journal of Range and Desert Research, 15: 283-294.
- Fernandez, G.C.J., 1992. Effective selection criteria for assessing plant stress tolerance. In: Proceedings of the International Symposium on Adaptation of Vegetables and other Food Crops in Temperature and Water Stress, Taiwan, 13-16 August, Chapter 25, p. 257-270.
- Fischer, R.A. and Maurer, R., 1978. Drought resistance in spring wheat cultivars. I. Grain yield responses. Australian Journal Agricultural Research, 29: 897-912.
- Heydari Sharifabadi, H., 2001. Using seawater for confronting with drought. Scientific and Extension Quarterly of Jahad Agriculture. Agricultural Aridity and Drought, No 4. p.25.
- Jafari, A.A., Heydari Sharifabadi, H. and Nosrati, M., 2003. Evaluation of forage yield, morphological and quality traits of 18 cultivars and ecotypes of alfalfa (Medicago sativa) under optimum and drought conditions. Iranian Journal of Rangelands and Forests Plant Breeding and Genetic Research, 11: 63-103.
- Jafari, M., Barati, H., Zareh, S. and Zakeri, R., 2012. Comparison of drought resistant pasture important species. First National Conference on Desert. p.12.
- Jazayeri, M. and Rezaie, A., 2004. Comparison of drought tolerance indices in oats. The 8th Iranian crop production and breeding congress. University of Guilan, Rasht, Iran. p.35.
- Manly, B.F.J., 1994. Multivariate Statistical Methods. Chapman & Hall. London, 215pp.
- Pukridge, D.W. and Freneh, R.G.,1986. The annual legume pasture in cereal ley farming system of Southern Australia. A review agriculture.; Ecosystems and Environment, 9: 29-267.
- Rosielle, A.A. and Hamblin, J., 1981. Theoretical aspects of selection for yield in stress and non stress environment. Crop Science, 21: 943-946.
- Simane, B., Struik, P.C., Nachit, M.M. and Peacock, J.M., 1993. Ontogenic analysis of yield components and yield stability of durum wheat in water-limited environments. Euphytica, 71:211-219.
- Steel, R.G.D. and Torrie, J.H., 1980. Principles and Procedures of Statistics. A Biometrical Approach, Second Edition, McGraw-Hill Book Company, London. 633pp.
- Tarinezhad, A., 1998.Evaluation of winter wheat landraces under drought stress and irrigated conditions. M.Sc. Thesis. Faculty of Agriculture. Tabriz University. 125pp.
- Torknezhad, A. and Heydari Sharifabadi, H., 2000. Indices of drought tolerance in some species of annual alfalfa. Iranian Journal of Pajouhesh-va-Sazandegi, 13:10-14.
- Zabet, M., Hoseinzade, A.H., Ahmadi, A. and Khialparast, F., 2003. Effect of water stress on different traits and determination of the best water stress index in Mung bean (Vigna radiata). Iranian Journal of Agricultural Sciences, 34: 889-898.
Iranian Journal of Rangelands and Forests Plant Breeding and Genetic Research
Volume 24, Issue 2 - Serial Number 48
December 2016
Pages 314-322

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