Soybean yield under water deficit conditions

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Research Paper 01/02/2013
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Soybean yield under water deficit conditions

Siros Ekhtiari, Soheil Kobraee, Keyvan Shamsi
J. Bio. Env. Sci.3( 2), 46-52, February 2013.
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Abstract

Drought stress is the main environmental factor that limiting crops growth and productivity in Iran. Therefore, in order to evaluate effects of water deficit on yield and yield components of soybean, an experiment was performed in the research field of the Islamic Azad University of Kermanshah, Iran. Response of four soybean cultivars at four irrigation regimes investigated based on randomized complete block design with three replications. At the end of growth season, ten plants were selected randomly from each plot and then final yield and yield component were measured. The results of this experiment show that there are significant differences among cultivars in yield and yield components at different irrigation regimes. The lowest values of grain and biological yield were obtained under condition in which water stress occurred in R1 that indicating the importance and sensitivity of this stage in plant life cycle. Also, number of pod and seed per plant decreased when that withholding irrigation occurred at the early of flowering stage. Withholding irrigation at seed-filling stage had the most effects on reducing seed weight. Therefore, the lowest 100-seed weight per plant was obtained when withholding irrigation at R6. The results of path coefficient analysis were shown that seed/plant and seed weight had high and positive direct effects on seed yield. In addition, Withholding irrigation at R3 had more effect on reducing pod and seed dry weight.

VIEWS 15

Abayomi YA. 2008. Comparative growth and grain yield responses of early and late maturity groups to induced soil moisture stress at different growth stages. World Journal of Agricultural Sciences 4(1), 71-78.

Andriani JM, Andrade FH, Suero EE, Dardanelli JL. 1991. Water deficits during reproductive growth of soybeans, I. Their effects on dry matter accumulation, and its components. Agronomie 11, 77-746.

Ashley DA, Ethridge WJ. 1978. Irrigation effects on vegetative and reproduction development of three soybean cultivars. Agronomy Journal 70, 467-471.

Bali RA, McNew RW, Vories ED, Keisling TC, Purcell LC. 2001. Path analyses of population density effects on short-season soybean yield. Agronomy Journal 93, 187-195.

Brevedan RE, Egli DB. 2003. Short periods of water stress during seed filling, leaf senescence, and yield of soybean. Crop Science 43, 2083–2088.

Desclaux D, Huynh TT, Roumet P. 2000. Identification of soybean plant characteristics that indicate the timing of drought stress. Crop Science 40, 716–722.

Fageria NK, Baligar VC, Charles AJ. 1997. Growth and mineral nutrition of field crops. 2nd Ed. New York, Marcel Dekker, Inc.

Fehr WR, Caviness CE. 1977. Stages of soybean development, Spec, Rep, 80, Iowa State Univ., Ames.

Fofana A. 2005. Effects of water stress at different growth stages on growth and yield of soybean genotypes, B. Agric. (Agronomy) Project, University of Ilorin, Nigeria.

Frederick JR, Camp CR, Baure PJ. 2001. Drought stress effects on branch and main stream seed yield and yield components of determinate soybean. Crop Science 41, 759-763.

Karam F, Masaad R, Sfeir T, Mounzer O, Rouphael Y. 2005. Evapotranspiration and seed yield of field grown soybean under deficit irrigation conditions. Agricultural Water Management 75, 226-244.

Kerbauy GB. 2004. Plant Physiology, Guanabara Koogan S.A., Rio de Janeiro.

Kokubun M, Shimada S, Takahashi M. 2001. Flower abortion caused by pre anthesis water deficit is not attributed to impairment of pollen in soybean. Crop Science 4, 1517–1521.

Levitt J. 1980. Responses of plants to environmental stress. 2nd edition, Vol. II, Academic Press, New York.

Mohapatra PK, Turner NC, Siddique KHM. 2003. Assimilate partitioning in chickpea (Cicer arietinum L.) in drought prone environment. In: Saxena NP (ed) Management of agricultural drought: agronomy and genetic options. Science Publishers Inc., Enfield, p. 173–188.

Ohashi Y, Nakayama N. 2009. Differences in the responses of stem diameter and pod thickness to drought stress during the grain filling stage in soybean plants. Acta Physiologiae Plantarum 31, 271-277.

Osborne SL, Shepers J, Fransis DD, Schlemmer MR. 2002. Use of spectral radiance to in season biomass and grain yield in nitrogen water- stressed corn. Crop Science 42, 165-171.

Royo C, Abaza M, Blanco R, Garcia d, Moral LF. 2000. Triticale grain growth and morphometry as affected by drought stress. Late sowing and simulated drought stress. Australian Journal of Plant Physiology 27, 1051-1059.

Schnyder H. 1993. The role of carbohydrate storage and redistribution in the source- sink relation of wheat and barley during grain filling a review. New physiology 123, 2333-245.

Verslues PE, Agarwal M, Katiar-Agarwal S, Zhu J, Zhu JK. 2006. Method s and concepts in quantifying resistance to drought, salt and freezing, abiotic stresses that affect plant water status, The Plant Journal 45 (4), 523-539.

Wardlow IF, Wilenbrink J. 1994. Carbohydrate storage and mobilization by the culm of wheat between heading and grain maturity: the relation of sucrose synthase and sucrose-phosphate synthase. Australian Journal of Plant Physiology 21, 255-271.

Westgate ME, Peterson CM. 1993. Flower and pod development in water–deficient soybean (Glycine max L. Merr.). Journal of Experimental Botany 44, 109–117.

Westgate ME, Grant TGL. 1989. Water deficits and reproduction in maize. Responses of the reproductive tissue to water deficits at anthesis and mid-grain fill. Plant Physiology 91, 862–867.

Whan BR, Anderson WK, Gilmour RF, Regan KL, Turner NC. 1991. A role of physiology in breeding for improved wheat yield under drought stress. In: Acevedo, E., A. P. conesa, P. Monne veux and J.P. srivastava (eds), physiology – breeding of winter cereals for stressed Mediterranean environments. InRA, Paris. P. 179-194.