A New Method for Estimating Seed Numbers in the Soil
- 1 January 1989
- journal article
- research article
- Published by Cambridge University Press (CUP) in Weed Science
- Vol. 37 (6) , 836-839
- https://doi.org/10.1017/s0043174500072933
Abstract
An elutriation system was developed to estimate weed seed densities in soil. The system provided reliable estimates of seed densities for weed species with a broad range of seed weights (0.06 to 9.80 mg) and had no effect on seed viability of three weed species tested. Elutriation of soil samples (up to 60 g) taken from a cultivated field took approximately 15 min. Separating, classifying, and counting seeds is time consuming (20 to 30 min per sample) but provides an accurate estimate of seed densities for weeds with a diameter of 0.5 mm or more.Keywords
This publication has 6 references indexed in Scilit:
- A Water-Spray System for Removing Seed from SoilWeed Technology, 1988
- Potential for Using Weed Seed Content in the Soil to Predict Future Weed ProblemsWeed Science, 1985
- Quantitative Separation of Roots from Compacted Soil Profiles by the Hydropneumatic Elutriation System1Agronomy Journal, 1982
- Seasonal Variation in the Seed Banks of Herbaceous Species in Ten Contrasting HabitatsJournal of Ecology, 1979
- Illustrated Taxonomy Manual of Weed SeedsTaxon, 1972
- A Rapid Method for Enumeration of Viable Seeds in SoilWeeds, 1967