Full TGIF Record # 67686
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Web URL(s):http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2620435/pdf/223.pdf
    Last checked: 07/08/2013
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http://journals.fcla.edu/jon/article/view/67146/64814
    Last checked: 08/17/2018
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Publication Type:
i
Refereed
Author(s):Gouge, Dawn H.; Smith, Kirk A.; Lee, Linda L.; Henneberry, Thomas, J.
Author Affiliation:Gouge: University of Arizona, Department of Nematology, Maricopa, AZ; Smith: University of Arizona, Maricopa Agricultural Center, Maricopa, AZ; Lee and Henneberry: Western Cotton Research Laboratory, USDA, ARS, Pacific West Area, Phoenix, AZ
Title:Effect of soil depth and moisture on the vertical distribution of Steinernema riobrave (Nematoda: Steinernematidae)
Source:Journal of Nematology. Vol. 32, No. 2, June 2000, p. 223-228.
Publishing Information:Lake Alfred, FL: Society of Nematologists
# of Pages:6
Related Web URL:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2620435/
    Last checked: 07/08/2013
    Notes: Abstract only
Keywords:TIC Keywords: Soil depth; Soil moisture; Ecological distribution; Population dynamics; Steinernema riobrave; Entomopathogenic nematodes; Density
Abstract/Contents:"The effect of soil moisture on the distribution of Steinernema riobrave in a sand column was determined. Larvae of Pectinophora gossypiella were used to detect S. riobrave infective juveniles (IJ) in each 2.5-cm section of 30-cm-long soil columns. Soil moisture was determined for each section and related to the numbers of nematodes recovered from infected insect baits. Infective juveniles of S. riobrave applied on the sand column surface showed some degree of positive geotaxis. IJ in soil columns with a consistent moisture gradient grouped in the upper 12.7 cm within a water potential range of ā»40 to ā»0.0055 MPa (2% to 14% moisture). Nematodes in sand colomns that were gradually dehydrating moved down the soil column, aggregating on the 28th day between 15-23 cm in depth. Nematode redistribution over time allowed IJ to remain within a water potential range of ā»0.1 to ā»0.012 MPa (5.2% to 9.5% moisture).
Language:English
References:23
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gouge, D. H., K. A. Smith, L. L. Lee, and T. J. Henneberry. 2000. Effect of soil depth and moisture on the vertical distribution of Steinernema riobrave (Nematoda: Steinernematidae). J. Nematol. 32(2):p. 223-228.
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Web URL(s):
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2620435/pdf/223.pdf
    Last checked: 07/08/2013
    Requires: Adobe Flash
http://journals.fcla.edu/jon/article/view/67146/64814
    Last checked: 08/17/2018
    Requires: PDF Reader
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MSU catalog number: QL 386 .A1 J66
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