Moisture induced changes of volume and density of some cereal seeds J., Lahodová M. (2015): Moisture induced changes of volume and density of some cereal seeds. Plant Soil Environ., 61: 43-48.
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The effect of wetting in the density and volume of seeds of barley, rye and two cultivars of wheat was determined. Two levels of wetting were used: (i) 6 h wetting close to the end of imbibition; (ii) 24 h wetting close to the beginning of germination. The experimental results show that the variability of the seeds’ volume and density in all tested states can be well described by the Gaussian distribution. The changes of the seed’s volume and the seed’s density caused by wetting can be then easily expressed via the changes of the distribution parameters. The increase in the seed’s density and the seed’s volume was the main effect of the wetting, but the level of the observed changes was variable for different crops and different degrees of wetting. Density increase was observed mainly in the case of imbibition, whereas longer wetting was connected mainly with changes of the seed’s volume.
Blahovec J., Kubát O. (1987): Compression of dry farm porous materials at high pressures. Research in Agricultural Engineering, 33: 289–302. (In Czech)
Blahovec J., Lahodová M. (2014): Study of moisture induced changes of mass and dimension characteristics in some cereal grains. International Agrophysics. (In Print)
Chang C.S. (1988): Measuring density and porosity of grain kernels using a gas pycnometer. Cereal Chemistry, 65: 13–15.
Christopoulos Arthur, Lew Michael J. (2000): Beyond Eyeballing: Fitting Models to Experimental Data. Critical Reviews in Biochemistry and Molecular Biology, 35, 359-391
Dell'Aquila Antonio (2010): New Perspectives for Seed Germination Testing Through Digital Imaging Technology~!2008-11-28~!2009-05-23~!2009-12-24~!. The Open Agriculture Journal, 3, 37-42
Dornez Emmie, Holopainen Ulla, Cuyvers Sven, Poutanen Kaisa, Delcour Jan A., Courtin Christophe M., Nordlund Emilia (2011): Study of grain cell wall structures by microscopic analysis with four different staining techniques. Journal of Cereal Science, 54, 363-373
Gegas V. C., Nazari A., Griffiths S., Simmonds J., Fish L., Orford S., Sayers L., Doonan J. H., Snape J. W. (): A Genetic Framework for Grain Size and Shape Variation in Wheat. The Plant Cell, 22, 1046-1056
Mare D.J. (1999): The seed coat and dormancy in wheat grains. In: Weipert D. (ed.): Eighth International Symposium on Preharvest Sprouting in Cereals. Detmold, 77–81.
Mebatsion H.K., Paliwal J., Jayas D.S. (2012): Evaluation of variations in the shape of grain types using principal components analysis of the elliptic Fourier descriptors. Computers and Electronics in Agriculture, 80, 63-70
Rathjen J. R., Strounina E. V., Mares D. J. (): Water movement into dormant and non-dormant wheat (Triticum aestivum L.) grains. Journal of Experimental Botany, 60, 1619-1631
Robert Céline, Noriega Arturo, Tocino Ángel, Cervantes Emilio (2008): Morphological analysis of seed shape in Arabidopsis thaliana reveals altered polarity in mutants of the ethylene signaling pathway. Journal of Plant Physiology, 165, 911-919
Sahin S., Sumnu S.G. (2008): Physical Properties of Foods. New York, Springer, 257.
Waszkiewicz C. (1988): Effect of the water content on physical properties of the cereal grain. Part III. Grain dimensions. Roczniki Nauk Rolniczych, Seria C, Technika Rolnicza, 78: 57–62. (In Polish)
Weitbrecht K., Muller K., Leubner-Metzger G. (): First off the mark: early seed germination. Journal of Experimental Botany, 62, 3289-3309
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