Influence of simulated seed rain on the seed bank of wild-proso millet
| Autor: | Bill J. Williams, R. Gordon Harvey |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Weed Science. 50:340-343 |
| ISSN: | 1550-2759 0043-1745 |
| DOI: | 10.1614/0043-1745(2002)050[0340:iossro]2.0.co;2 |
| Popis: | A field experiment was conducted between 1988 and 1993 to determine the number of wild-proso millet seed that could be returned to the soil without increasing future soil seed bank populations. The first seed bank (1988) was 15,300 seed m−2 and ranged from 14,000 to 21,000 seed m−2, which represented a high seed population for the area. Seed rain treatments of 0, 3, 6, 12, 24, and 48% of the 1988 soil seed bank were returned each fall. By 1993, more than 90% of the original millet seed bank had been depleted for all treatments. It was estimated that 77% of the seed rain and 68% of the spring seed bank were lost each year. As a result, wild-proso millet must produce approximately three times the seed in the soil to maintain a constant seed bank population. Nomenclature: Wild-proso millet, Panicum miliaceum L. PANMI; corn, Zea mays L.; soybean, Glycine max (L) Merr. |
| Databáze: | OpenAIRE |
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