Journal of Weed Science and Technology
Online ISSN : 1882-4757
Print ISSN : 0372-798X
ISSN-L : 0372-798X
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Volume 56, Issue 3
Displaying 1-6 of 6 articles from this issue
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  • Effect of soil water condition on dormancy of Chenopodium album seed.
    Toshiyuki Imaizumi, Motoaki Asai, Hiroaki Watanabe, Akira Uchino
    2011 Volume 56 Issue 3 Pages 147-153
    Published: 2011
    Released on J-STAGE: November 10, 2011
    DOIhttps://doi.org/10.3719/weed.56.147
    JOURNAL FREE ACCESS
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    We evaluated the effects of soil water levels on seed dormancy in Chenopodium album. In February 2010, C. album seeds were either placed on the soil surface or buried at a depth of 7.5 cm in pots of 25 cm diameter and 30 cm depth. The pots were subjected to three soil water level treatments:moist, submerged, and control (upland conditions). The seeds were retrieved from the pots in April, May, June and July 2010, and their dormancy and viability were determined using germination and tetrazolium tests. Among the seeds that had been buried, the levels of dormancy were greatest in those that had been submerged. Among the seeds retrieved from the soil surface, the moist and submerged treatments caused induction of dormancy sooner than the control treatment. However, by July the levels of dormancy in seeds retrieved from the soil surface were same among all treatments. The results indicate that dormancy is most likely to occur in C. album seeds that have been buried and submerged in water.
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