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The dynamics of shattering in maturing wheat

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Summary

Temporal changes in shattering losses of 14 wheat (Triticum aestivum L.) genotypes were studied in an irrigated environment. The lines ranged in height from 68 to 98 cm; eight lines were fully awned while five were not. Shattered kernels were gathered at weekly intervals for 6 wk; samping commenced at 30 to 40% kernel moisture and continued for 3 wk beyond harvest ripeness (14.5% moisture).

Shattering loss, expressed as a percentage of yield, ranged from 3.25 to 17.3% over the 6 wk period. Awnedness was not a factor in shattering susceptibility of the genotypes studied. Both the most and least shattering resistant lines in this study were awnless. There was a nonsignificant correlation between shattering losses and plant height. It was concluded that a single quantitative measurement of shattering loss at or after harvest ripeness (14.5% moisture) would provide an adequate measure of shattering susceptibility.

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Authors and Affiliations

  1. Research Station, Research Branch, Agriculture Canada, S9H3X2, Swift Current, Saskatchewan

    J. M. Clarke & R. M. De Pauw

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  1. J. M. Clarke
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  2. R. M. De Pauw
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Clarke, J.M., De Pauw, R.M. The dynamics of shattering in maturing wheat. Euphytica 32, 225–230 (1983). https://doi.org/10.1007/BF00036883

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  • DOI: https://doi.org/10.1007/BF00036883

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