科研之友
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摘要
A new method is demonstrated for using concentrated oxygen (O-2 gas) to release seed dormancy. Concentrated O-2 gas in air is known to release seed dormancy in some seeds, including some foxtail (Setaria) species. New medical equipment makes O-2 gas easier to work with than before, so laboratories working with dormant seeds can now use concentrated O-2 gas as a seed treatment on a production basis. Use of medical O-2 gas concentrators is simpler and safer than using O-2 gas supplied by pressurized gas cylinders. Suitable medical O-2 gas concentrators in new or used condition are readily available, operate on standard electrical current, and deliver O-2 gas with low-pressure tubes and fittings. Resealable plastic bags are inflated with concentrated O-2 gas and then sealed as seed treatment chambers. This use of concentrated O-2 gas is confirmed to significantly increase the germination of dormant seeds of giant foxtail (Setaria faberi Herrm) and plains bristlegrass (S. macrostachya Kunth).
- 出版日期2015-10
