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The soybean cyst nematode (SCN), Ichinohe, causes significant damage to soybean production annually. Fluopyram is a fungicide commonly used in soybean seed treatments intended to control soilborne fungal pathogens; however, recent studies have also suggested inhibitory effects on SCN. We examined the effects of a fluopyram seed treatment, ILeVO, on SCN reproduction, sudden death syndrome (SDS) development, and yield in a 3-year field study. Overall, fluopyram had a significant effect on yield ( = 0.046) and end-of-season SCN eggs and second-stage juveniles (Pf, = 0.033) but no significant effect on SCN reproduction (Rf) or SDS disease index ( > 0.05). Post hoc tests indicated that fluopyram increased yield and suppressed SCN quantities. However, Rf was consistently greater than 1 whether or not the seed was treated with fluopyram, indicating that SCN populations were still increasing in the presence of fluopyram. A follow-up greenhouse study indicated that fluopyram reduced SCN relative to nontreated controls, as observed in the field, but only reduced SCN DNA within roots of a susceptible cultivar. These results indicate that fluopyram can suppress SCN quantities relative to nontreated seed but may not successfully reduce nematode populations without the use of additional management strategies.
This article was published in the following journal.
Name: Plant disease
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Gaseous elements, chemicals that are in the atmosphere that may contribute to GREENHOUSE EFFECT.
Studies in which a number of subjects are selected from all subjects in a defined population. Conclusions based on sample results may be attributed only to the population sampled.
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State bounded on the north by Lake Michigan and Michigan, on the east by Ohio, on the south by Kentucky, and on the west by Illinois.
State bounded on the north by the Great Lakes, on the east by Canada, on the south by Wisconsin, Indiana, and Ohio, and on the west by Lake Michigan and Wisconsin.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...