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Note on the Estimation of Viable Weed Seeds in Soil Samples
Author(s) -
FEAST PATRICIA M.,
ROBERTS H. A.
Publication year - 1973
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1973.tb01251.x
Subject(s) - germination , weed , agronomy , biology , extraction (chemistry) , environmental science , horticulture , chemistry , chromatography
Techniques for estimating populations of viable weed seeds in soil can be grouped into those which involve sieving, flotation and subsequent viability determination, and those which rely on direct assessment of the seedlings arising from the soil samples (Kropáč, 1966). This germination technique, although undoubtedly useful, may be less efficient than extraction methods (Jensen, 1969) and has the disadvantage that the samples must be kept for a long period to ensure that germination of a high proportion of the seeds takes place. Experiments were made to examine some of the factors which might affect seed germination in soil samples placed in shallow dishes, and the results are summarized in this note.