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Effect of seed coat color on seed dormancy in different environments

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Abstract

The weather is often damp during seed development and harvesting in Hokkaido, in the north of Japan. In order to develop white-grained wheat cultivars tolerant top re-harvest sprouting, seed dormancy was investigated under field and greenhouse conditions using red- and white-grained varieties as well as recombinant inbred lines derived from a cross betweenKitakei1354 (red dormant) and AUS1408(white dormant). Under dry conditions, there was no significant difference between red and white wheat in regard to seed dormancy, and a high correlation coefficient was detected between dormancy and embryo sensitivity to abcsisic acid (ABA). Under wet and humid conditions, a red seed coat would appear to be essential for the maintenance of a suitable level of seed dormancy but under less challenging dryer conditions white wheat dormancy was found to be adequate.

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Authors and Affiliations

  1. Hokkaido Green-Bio Institute, Higashi 5, Kita 15, Naganuma-cho, Hokkaido, 069-1301, Japan

    Atsushi Torada

  2. Tokachi Agricultural Experiment Station, Shinsei, Memuro-cho, Hokkaido, 082-0071, Japan

    Yoichi Amano

Authors
  1. Atsushi Torada
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  2. Yoichi Amano
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Torada, A., Amano, Y. Effect of seed coat color on seed dormancy in different environments. Euphytica 126, 99–105 (2002). https://doi.org/10.1023/A:1019603201883

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  • DOI: https://doi.org/10.1023/A:1019603201883

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