Variation in Parasitic Potential of Heterodera glycines Populations
نویسندگان
چکیده
منابع مشابه
Variability in Host Preference Among Field Populations of Heterodera glycines.
Eighteen soybean fields, six each with race 3, race 4, or Bedford population of Heterodera glycines, were selected for testing of host variability. Each field was divided into three sections, and a bulk soil sample was taken from each section. The 54 bulk soil populations (BSP) and 270 single cyst populations (SCP) were subjected to race determination tests. Tests of the 18 BSP and 90 SCP from ...
متن کاملEffects of Biosolid Soil Amendment on Heterodera glycines Populations.
The high degree of parasitic variability in Heterodera glycines and its distribution in a wide range of soybean production systems present multiple challenges for management, which necessitate increased understanding of the biology of H. glycines. Soil amendments are being considered either as stand-alone and/or as part of integrated management approaches. A recycled municipal biosolid with nut...
متن کاملNematodes in Michigan. I. Distribution of Heterodera glycines and Other Plant-parasitic Nematodes in Soybean.
In 1992, a detection survey for Heterodera glycines (soybean cyst nematode) was conducted in 16 counties in Michigan. The nematode was detected in 12 counties, with absolute frequencies ranging from 6 to 100%. A total of 149 samples was collected, and 53% were infested with H. glycines. Eighty-four growers participated in the survey, and 38 had samples collected from more than one field. Of the...
متن کاملOverwinter Population Dynamics of Heterodera glycines.
The purpose of this research was to compare the overwinter survival of populations of Heterodera glycines at different latitudes in the United States and the effect of changing latitudes before and after the initiation of dormancy. Soil samples infested with H. glycines were collected in August or October in 1992 to 1994 from soybean fields in two to four states (combinations of Arkansas, Flori...
متن کاملDistribution of Heterodera glycines in Ohio.
A 4-year systematic survey for the presence of soybean cyst nematode Heterodera glycines in Ohio soybean fields was initiated in 1992. A total of 667 soybean fields in 63 counties was sampled. Heterodera glycines was present in 91 fields in 40 counties based on soil samples collected, and in one field in each of three additional counties based on soil samples submitted to the Plant and Pest Dia...
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ژورنال
عنوان ژورنال: Crop Science
سال: 1994
ISSN: 0011-183X,1435-0653
DOI: 10.2135/cropsci1994.0011183x003400060005x