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Seeds: biology, development and ecology. Proceedings of the Eighth International Workshop on Seeds, Brisbane, Australia, May 2005.

Book cover for Seeds: biology, development and ecology. Proceedings of the Eighth International Workshop on Seeds, Brisbane, Australia, May 2005.

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Chapter 40 (Page no: 383)

The effect of light intensity on seed production and quality in a number of Australian wild oat (Avena fatua L.) lines.

Several aspects of the maternal environment (e.g. air temperature, soil moisture, soil nutritional status and photoperiod) are known to influence seed production and quality in a range of plant species. However, little is known about the effect of other environmental factors, such as the light intensity perceived by the developing plant, on these seed characters. This is particularly important when elucidating the persistence mechanisms of annual weeds that may produce seeds under a crop canopy. Therefore, the aim of the present study was to determine the effect of light intensity on the reproductive characteristics of a number of wild oat (Avena fatua L.) lines originating from a range of locations in Australia. Under a reduced light intensity and in the absence of competition, the overall plant growth, seed production, seed weight and depth of seed dormancy (but not seed viability) were all reduced compared with that seen in plants growing in full sunlight. In addition, the reduced light intensity conditions significantly increased plant height and reduced tiller production, but did not affect leaf area production. In general, these responses were the same for all six lines studied and indicate that the reduced light intensity perceived by late germinating weeds present within a crop canopy causes the production of seeds with traits that are likely to result in rapid loss from the soil seed bank. In addition, all lines grown under the reduced light intensity conditions had an extended development time (up to 70 days), that it would be unlikely that they would reach maturity before the crop was harvested, and therefore would not be able to return any seed to the soil seed bank.

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Chapter: 7 (Page no: 71) Possible involvement of programmed cell death events during accelerated ageing of Glycine max axes. Author(s): Song, S. Q. Tian, X. Fu, J. R.
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Chapter: 10 (Page no: 102) Seed development transporting into the post-genomic era. Author(s): Waterworth, W. M. Bray, C. M.
Chapter: 11 (Page no: 112) Biogenesis of the compound seed protein storage vacuole. Author(s): Tse, Y. C. Wang, J. Miao, Y. Jiang, L.
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Chapter: 13 (Page no: 130) Seed biotechnology: translating promise into practice. Author(s): Bradford, K. J.
Chapter: 14 (Page no: 139) Stress-inducible gene expression and its impact on seed and plant performance: a microarray approach. Author(s): Ligterink, W. Kodde, J. Lammers, M. Dassen, H. Geest, A. H. M. van der Maagd, R. A. de Hilhorst, H. W. M.
Chapter: 15 (Page no: 149) The use of proteome and transcriptome profiling in the understanding of seed germination and identification of intrinsic markers determining seed quality, germination efficiency and early seedling vigour. Author(s): Rajjou, L. Miché, L. Huguet, R. Job, C. Job, D.
Chapter: 16 (Page no: 159) A Seed-GUS-Expression enhancer-trap library for germination research. Author(s): Liu, P. P. Martin, R. C. Hewitt, J. R. Koizuka, N. Homrichhausen, T. M. Nonogaki, H.
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Chapter: 22 (Page no: 217) Quantitative trait loci, epistasis and other interactions associated with dormancy in weedy rice (Oryza sativa L.). Author(s): Foley, M. E. Gu, X. Y. Kianian, S. F.
Chapter: 23 (Page no: 225) Differences in the Lolium rigidum embryo proteome of seeds with a high (light-insensitive) and low (light-sensitive) level of dormancy. Author(s): Steadman, K. J. Millar, A. H.
Chapter: 24 (Page no: 235) Transcriptomic and proteomic profiling of FsPP2C1-overexpressing Arabidopsis plants. Author(s): González-García, M. P. Rodríguez, D. Nicolás, C. Nicolás, G. Lorenzo, O.
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Chapter: 27 (Page no: 262) Dormancy and germination in Eucalyptus globulus seeds. Author(s): Nair, T. S. Wilson, S. Spurr, C.
Chapter: 28 (Page no: 269) The effect of hydropriming on germination barriers in triploid watermelon seeds. Author(s): Zheng, X. Y. Li, X. Q. Xu, Y.
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Chapter: 35 (Page no: 333) Effects of bean seed production conditions on germination and hypocotyl elongation responses to temperature and water potential. Author(s): Moreau-Valancogne, P. Coste, F. Durr, C. Crozat, Y.
Chapter: 36 (Page no: 342) A model of seed dormancy in wild oats (Avena fatua) for investigating genotype × environment interactions. Author(s): Shepherd, S. K. Murdoch, A. J. Dunwell, J. M. Lutman, P. J.
Chapter: 37 (Page no: 354) Seed microRNA research. Author(s): Martin, R. C. Liu, P. P. Nonogaki, H.
Chapter: 38 (Page no: 365) Temporal fulfilment of the light requirement for seed germination: an example of its use in management of rare species. Author(s): Fitch, E. A. Walck, J. L. Hidayati, S. N.
Chapter: 39 (Page no: 374) Assisted natural recovery using a forest soil propagule bank in the athabasca oil sands. Author(s): Mackenzie, D. D. Naeth, M. A.
Chapter: 41 (Page no: 398) Seed ecology of Apiaceae weeds in pyrethrum. Author(s): Rawnsley, R. P. Gracie, A. J. Lane, P. A. Brown, P. H. Groom, T.
Chapter: 42 (Page no: 407) Plant dispersal strategies, seed bank distribution and germination of Negev Desert species. Author(s): Gutterman, Y. Gendler, T. Huang, Z. Y.
Chapter: 43 (Page no: 416) Seed biology of tropical Australian plants. Author(s): Bellairs, S. M. Ashwath, N.

Chapter details

  • Author Affiliation
  • Integrated Seed Research Unit, School of Land and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia.
  • Year of Publication
  • 2007
  • ISBN
  • 9781845931971
  • Record Number
  • 20073071823