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Species differences in seed water status during seed maturation and germination

Published online by Cambridge University Press:  19 September 2008

D.B. Egli  and
D.M. TeKrony
D.B. Egli*
Affiliation:
Department of Agronomy, University of Kentucky, Lexington, KY 40546-0091, USA
D.M. TeKrony
Affiliation:
Department of Agronomy, University of Kentucky, Lexington, KY 40546-0091, USA
*
*Correspondence
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Abstract

Maize (Zea mays L., cv. B73 × Mo17), wheat (Triticum aestivum L., cv. Clark), and soybean (Glycine max L. Merrill, cv. Elgin 87) were grown in the field and seed samples were collected at frequent intervals for the determination of seed fresh and dry weight and water potential of excised embryos (maize and wheat) and axes (soybean). Seed water concentration declined during seed development and the concentration at physiological maturity (PM, maximum seed dry weight) was highest in soybean (550–590 g kg−1 FW), lowest in maize (326–377 g kg−1) and intermediate in wheat (437 g kg−1). The embryo/axis water potential was relatively constant during much of seed filling before decreasing rapidly as the seeds approached PM and there was little variation among species (soybean −1.52 to −1.63 MPa, maize −1.61 to −1.99 MPa and wheat −1.66 MPa). Seed water concentration when 10% of the seeds germinated (radicle ≥3 mm) was highest in soybean (514 g kg−1), lowest in maize (332 g kg−1) and intermediate in wheat (345 g kg−1) while the water potential of the embryo/axis varied from −2.07 to −2.20 MPa across the three species. There was little variation in the water potential of the embryo/axis among species at the end of seed growth (PM) or at the beginning of germination. This similarity is consistent with the suggestion that the water status of critical seed structures may play a regulatory role in seed growth and germination.

Keywords

germinationmaizephysiological maturityseed maturationsoybeanwater potentialwheat
Type
Physiology
Information
Seed Science Research , Volume 7 , Issue 1 , March 1997 , pp. 3 - 12
Copyright
Copyright © Cambridge University Press 1997

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References

Adams, C.A. and Rinne, R.W. (1980) Moisture content as a controlling factor in seed development and germination. International Review of Cytology 68, 1–8.CrossRefGoogle Scholar
Ashraf, C.M. and Abu-Shakra, S. (1978) Wheat seed germination under low temperature and moisture stress. Agronomy Journal 70, 135–139.CrossRefGoogle Scholar
Bewley, J.D. and Black, M. (1994) Seeds. Physiology of development and germination. 2nd Edition, New York, London, Plenum Press.CrossRefGoogle Scholar
Blacklow, W.M. (1972) Mathematical description of the influence of temperature and seed quality on imbibition by seeds of corn (Zea mays L.). Crop Science 12, 643–646.CrossRefGoogle Scholar
Bradford, K.J. (1995) Water relations in seed germination. pp 351–396in Kigel, J.Galili, G. (Eds) Seed development and germination. New York, Marcel Dekker, Inc.Google Scholar
Brooking, I.R. (1990) Maize ear moisture during grain filling and its relation to physiological maturity and grain drying. Field Crops Research 23, 55–68.CrossRefGoogle Scholar
Capitanio, R., Gentinelta, E. and Motto, M. (1993) Grain weight and its components in maize inbred lines. Maydica 28, 365–379.Google Scholar
Crookston, R.K. and Hill, D.S. (1978) A visual indicator of the physiological maturity in soybean seed. Crop Science 18, 867–870.CrossRefGoogle Scholar
Daynard, T.B. and Duncan, W.G. (1969) The black layer and grain maturity in corn. Crop Science 9, 473–476.CrossRefGoogle Scholar
Egli, D.B. (1975) Rate of accumulation of dry weight in seed of soybeans and its relationship to yield. Canadian Journal of Plant Science 55, 215–219.CrossRefGoogle Scholar
Egli, D.B. (1990) Seed water relations and the regulation of the duration of seed growth in soybean. Journal of Experimental Botany 41, 243–248.CrossRefGoogle Scholar
Egli, D.B. (1994) Seed growth and development. pp 127–148in Boote, K.J., Bennett, J.M., Sinclair, T.R.Paulson, G.M (Eds) Physiology and determination of crop yield. Madison, WI ASA-CSSA-SSSA.Google Scholar
Egli, D.B. and TeKrony, D.M. (1993) Germination and water relations of immature soybean seed. Seed Science and Technology 21, 139–148.Google Scholar
Egli, D.B., Duncan, W.G. and Crafts-Brandner, S.J. (1987) Effect of physical restraint on seed growth in soybean. Crop Science 27, 289–294.CrossRefGoogle Scholar
Ellis, R.H. and Pieta Filho, C. (1992) The development of seed quality in spring and winter cultivars of barley and wheat. Seed Science Research 2, 9–15.CrossRefGoogle Scholar
Feng, D. and Egli, D.B. (1994) Germination of fresh, immature soybean seed: effect of the pre-germination light environment. Seed Science and Technology 22, 33–42.Google Scholar
Fraser, J., Egli, D.B. and Leggett, J.E. (1982) Pod and seed development in soybean cultivars with differences in seed size. Agronomy Journal 74, 81–85.CrossRefGoogle Scholar
Grabe, D.F. (1989) Measurement of seed moisture. pp 69–92in Standwood, P.C.McDonald, M.B. (Eds) Seed Moisture. CSSA Special Publication 14. Madison, WI CSSA.Google Scholar
Hanft, J.M. and Wych, R.D. (1982) Visual indicators of physiological maturity of hard red spring wheat. Crop Science 22, 584–588.CrossRefGoogle Scholar
Hillson, M.T. and Penny, L.H. (1965) Dry matter accumulation and moisture loss during maturation of corn grain. Agronomy Journal 57, 150–153.CrossRefGoogle Scholar
Hunter, J.R. and Erickson, A.E. (1952) Relation of seed germination to soil moisture tension. Agronomy Journal 44, 107–109.CrossRefGoogle Scholar
Hunter, J.L., TeKrony, D.M., Miles, D.F. and Egli, D.B. (1991) Corn seed maturity indicators and their relationship to uptake of carbon-14 assimilate. Crop Science 31, 1309–1313.CrossRefGoogle Scholar
Ibrahim, A.E., TeKrony, D.M., Egli, D.B. and Van Sanford, D.A. (1992). Water content and germination of immature wheat kernels. Seed Science and Technology 20, 39–46.Google Scholar
Jenner, C.F. (1982) Movement of water and mass transfer into developing grains of wheat. Australian Journal of Plant Physiology 9, 69–82.Google Scholar
Kermode, A.R. (1995) Regulatory mechanisms in the transition from seed development to germination: interactions between the embryo and the seed environment. pp 273–332in Kigel, J.Galili, G. (Eds) Seed development and germination. New York, Marcel Dekker, Inc.Google Scholar
Knittle, K.H. and Burris, J.S. (1976) Effect of kernel maturation on subsequent seedling vigor in maize. Crop Science 16, 851–855.CrossRefGoogle Scholar
McDonald, M.B. Jr., Vertucci, C.W. and Roos, E.E. (1988) Soybean seed imbibition: water absorption by seed parts. Crop Science 28, 993–997.CrossRefGoogle Scholar
McDonald, M.B., Sullivan, J. and Laver, M.J. (1994) The pathway of water uptake in maize seeds. Seed Science and Technology 22, 79–90.Google Scholar
Munier-Jolain, N.G., Ney, B. and Duthion, C. (1994) Reproductive development of indeterminate soybean as affected by morphological position. Crop Science 34, 1009–1013.CrossRefGoogle Scholar
Obendorf, R.L., Ashworth, E.N. and Rytko, G.T. (1980) Influence of seed maturation on germinability in soybean. Crop Science 20, 483–486.CrossRefGoogle Scholar
Ohmura, T. and Howell, R.W. (1962). Respiration of developing and germinating soybean seeds. Physiologia Plantarum 15, 341–350.CrossRefGoogle Scholar
Pieta Filho, C. and Ellis, R.H. (1991) The development of seed quality in spring barley in four environments. I. Germination and longevity. Seed Science Research 1, 163–177.CrossRefGoogle Scholar
Rasyad, A., Van Sanford, D.A. and TeKrony, D.M. (1990) Changes in seed viability and vigour during wheat seed maturation. Seed Science and Technology 18, 259–267.Google Scholar
Saab, I.N. and Obendorf, R.L. (1989) Soybean seed water relations during in situ and in vitro growth and maturation. Plant Physiology 89, 610–616.CrossRefGoogle ScholarPubMed
Sofield, I., Wardlaw, I.F., Evans, L.T. and Zeo, S.Y. (1977). Nitrogen, phosphorus, and water contents during grain development and maturation in wheat. Australian Journal of Plant Physiology 4, 799–810.Google Scholar
Swank, J.C., Egli, D.B. and Pfeiffer, T.W. (1987) Seed growth characteristics of soybean genotypes differing in duration of seed fill. Crop Science 27, 85–89.CrossRefGoogle Scholar
TeKrony, D.M., Egli, D.B., Balles, J., Pfeiffer, T. and Fellows, R.J. (1979) Physiological maturity in soybean. Agronomy Journal 71, 771–775.CrossRefGoogle Scholar
Vertucci, C.W. and Leopold, A.C. (1987) Water binding in legume seeds. Plant Physiology 85, 224–231.CrossRefGoogle ScholarPubMed
Vertucci, C.W. and Roos, E.E. (1990) Theoretical basis of protocols for seed storage. Plant Physiology 94, 1019–1023.CrossRefGoogle ScholarPubMed
Walbot, V. (1978) Control mechanisms for plant embryogeny. pp 113–116in Clutter, M.E. (Ed.) Dormancy and developmental arrest. London, Academic Press.CrossRefGoogle Scholar
Westgate, M.E. (1994) Water status and development of the maize endosperm and embryo during drought. Crop Science 34, 76–83.CrossRefGoogle Scholar
Zanakis, G.W., Ellis, R.H. and Summerfield, R.J. (1994) Seed quality in relation to seed development and maturation in three genotypes of soyabean (Glycine max). Experimental Agriculture 30, 139–156.CrossRefGoogle Scholar