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首页> 外文期刊>Journal of Agriculture and Rural Development in the Tropics and Subtropics >Enhancing germinatmon of four Australian Acacia species through seed treatments overcoming coat-imposed dormancy
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Enhancing germinatmon of four Australian Acacia species through seed treatments overcoming coat-imposed dormancy

机译：通过种子处理克服种皮施加的休眠来增强四种澳大利亚相思树种的萌发

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摘要

Germination of the Acacia species A. aneura, A. farnesiana, A. saligna and A. victoriae is usually low due to impermeable seed coats causing dormancy. Propagation and distribution of the species for afforestation and reforestation projects requires higher germination and establishment rates. A number of pre-sowing seed treatments were examined with the goal of breaking seed-coat-imposed dormancy. Both concentrated sulphuric acid (H_2SO_4) and water treatments were applied to Acacia seeds in various combinations at 15, 20, 25 or 30 deg C. Results revealed that soaking seeds in concentrated H_2SO_4 or in water significantly increased germination percentage of treated seeds. Response to temperature followed a line reflecting habitat annual temperature for the four species. It is concluded that H_2SO_4 or water may be used to treat seeds of the four species to improve germination percentages.
机译：由于不渗透的种皮导致休眠，金合欢属种的A. aneura，A。farnesiana，A。saligna和A. victoriae的发芽率通常较低。为造林和再造林项目繁殖和分配该物种需要更高的发芽率和定植率。为了打破种皮施加的休眠状态，对许多播种前种子处理方法进行了检查。在15、20、25或30℃下，将浓硫酸（H_2SO_4）和水处理均以各种组合方式应用于相思种子。结果表明，将种子浸泡在浓H_2SO_4或水中浸泡可显着提高处理过的种子的发芽率。对温度的响应遵循一条线，该线反映了这四个物种的栖息地年度温度。结论是H_2SO_4或水可用于处理这四个物种的种子，以提高发芽率。

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