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Effect of pretreatment on breaking hard seed dormancy of Sophora davidii (Franch.) Skeels, a native Chinese shrub with potential for vegetation restoration in degraded habitats

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Sophora davidii (Franch.) Skeels, an indigenous legume, plays a crucial role in vegetation restoration in the water-catchment regions of Danjiangkou reservoir, which has in recent time experienced increasing drought-associated soil salinity and vegetation deterioration. The utilization of this species has been hampered by low rates of germination and emergence due to hard seed coats. Eleven treatments including concentrated sulphuric acid, hot water, sandpaper, and GA3 were tested for ability to break seed dormancy in S. davidii. Immersion in concentrated sulphuric acid (98%) for 30 min increased seed germination and seedling emergence most efficiently and is particularly suited for simultaneously treating large numbers of small seeds as required in seedling cultivation projects.
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Document Type: Research Article

Publication date: October 1, 2010

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  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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