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- Title
The relationship between soybean cyst nematode seasonal population dynamics and soil texture.
- Authors
Avendaño, Felicitas; Pierce, Francis J.; Melakeberhan, Haddish
- Abstract
The soybean cyst nematode (SCN), Heterodera glycines Ichinohe, cyst population densities at planting and at harvest have been related to soil texture but the seasonal mechanisms by which these correlations are established are less well known. The purpose of this work was to analyse the relationship of SCN life stages and reproductive potential (number of eggs per cyst) with soil texture. Cyst population density was positively correlated with sand and negatively correlated with clay and silt percentage in the soil within the ranges of 45-80% sand, 8-23% clay, and 8-43% silt in one field, but not in the other at five sampling times. The relationship between soil texture and juvenile stages in roots was weak. The stable relationship between SCN spatial and seasonal population dynamics and soil properties provides further support for potential delineation of management zones in SCN infested fields with a wide range of soil textures.
- Subjects
SOYBEAN cyst nematode; SOIL texture; GEOLOGICAL statistics; HETERODERA; POPULATION density
- Publication
Nematology, 2004, Vol 6, Issue 4, p511
- ISSN
1388-5545
- Publication type
Article