Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Influence of Soil Moisture On Pratylenchus Penetrans

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Nematologica
For more content, see Nematology.

The rate of population increase of Pratylenchus penetrans is greatest at moderate soil moisture tensions (pF 2-3) and is least at very low or very high tensions. Soil type influences population growth: the higher the silt and clay content of a soil the greater is the moisture tension necessary for satisfactory population growth. In general, the number of nematodes surviving in soil decreases with increasing moisture and temperature above freezing. No nematodes survive 15 days at -15° C or at 37° C. Soil type influences survival: at tensions of pF 3.7-4.2 survival is much greater in clay than in sandy soil. Nematodes can remain viable at tensions as high as pF 5.0, but death is rapid at pF 5.06. The results show that the half-life concept is of limited value for measurement of nematode viability. In sandy soil some P. penetrans enter alfalfa roots under saturated conditions (pF 0) and under dry conditions (pF 3.0) but entry is greatest under moist conditions (pF 1.8-2.5). The results suggest that only fourth stage larvae and adults of P. penetrans can penetrate into roots. The experimental results indicate that the widespread occurrence of high Pratylenchus spp. populations in sandy soils can be explained in terms of the interaction of soil moisture with soil type.

Affiliations: 1: Department of Plant Pathology, Cornell University, Ithaca, N.Y., U.S.A.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Nematologica — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation