Authors
Amy D.
Ziems
and
Loren J.
Giesler
,
Department of Plant Pathology
, and
George L.
Graef
,
Agronomy and Horticulture Department, University of Nebraska, Lincoln 68583
;
Margaret G.
Redinbaugh
,
United States Department of Agriculture-Agricultural Research Service, Wooster, OH
; and
Jean L.
Vacha
,
SueAnn
Berry
,
Laurence V.
Madden
, and
Anne E.
Dorrance
,
Department of Plant Pathology, Ohio State University, Wooster 44691
ABSTRACT
Bean pod mottle virus (BPMV) has become increasingly common in soybean throughout the north-central region of the United States. Yield loss assessments on southern soybean germplasm have reported reductions ranging from 3 to 52%. Currently, no soybean cultivars have been identified with resistance to BPMV. The objective of this study was to determine the impact of BPMV infection on soybean cultivars representing a broad range of northern soybean germ-plasm by comparing inoculated and noninoculated soybean plants in paired row studies. In all, 30 and 24 cultivars were evaluated in Nebraska (NE) in which soybean plants were inoculated at the V3 to V4 growth stage. Eleven cultivars from public and breeding lines were inoculated at the VC and R5 to R6 growth stages in Ohio (OH). Disease severity, yield, and percent seed coat mottling were assessed at both locations, whereas protein and oil content also were assessed at NE. Yield and percent seed coat mottling was significantly reduced following inoculation at the VC (OH) and V3 to V4 (NE) growth stages. In addition, seed oil and protein composition were impacted in 1 of the 2 years of the study. This study demonstrates that substantial yield losses can occur in soybean due to BPMV infection. In addition, protein and oil may be affected depending on the environment during the production season.
