Natural plant-derived compounds are currently being explored as alternatives for pest control in sustainable agriculture. This study explored the use of two compounds, sesamol and carbenoxolone, in the management of the fungal soybean disease charcoal rot (Macrophomina phaseolina). Previous studies have determined that sesamol and carbenoxolone compounds significantly inhibited fungal pathogen growth and plant disease in vitro. In order to assess the field efficacy of these compounds for fungal disease control, 2 years of field testing of these compounds have been conducted in southeast Kansas. Field treatments of the compounds sesamol and carbenoxolone at three concentrations, 0,500 and 1000 μg/ml, were applied foliarly at four distinct plant developmental stages. Treatments were applied to plots in random triplicate array and the experiment was repeated during the 1998 and 1999 growing seasons. Disease assessments were based on visual disease ratings, plant mortality and soybean yield analysis. Data were recorded weekly for each treatment plot and statistically analysed using analysis of variance. Results indicate that sesamol and carbenoxolone treatments significantly decreased disease symptoms (11–12%) and plant mortality (24–28%) while significantly increasing soybean yields (18–38%). These results support that plant-derived compounds can have a significant impact on soybean disease management and yield under field conditions.
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Conference Article|
December 01 2000
Field assessment of plant derivative compounds for managing fungal soybean diseases
N. L. Brooker;
N. L. Brooker
1
*Pittsburg State University, Department of Biology, 203 Heckert Wells Hall, Pittsburg, KS 66762, U.S.A.
1To whom correspondence should be addressed (e-mail nbrooker@pittstate.edu)
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J. H. Long;
J. H. Long
†Kansas State University, Southeast Agricultural Research Center, North 32nd and Pefley, Parsons, KS 67357, U.S.A.
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S. M. Stephan
S. M. Stephan
*Pittsburg State University, Department of Biology, 203 Heckert Wells Hall, Pittsburg, KS 66762, U.S.A.
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Publisher: Portland Press Ltd
Received:
June 19 2000
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© 2000 Biochemical Society
2000
Biochem Soc Trans (2000) 28 (6): 917–920.
Article history
Received:
June 19 2000
Citation
N. L. Brooker, J. H. Long, S. M. Stephan; Field assessment of plant derivative compounds for managing fungal soybean diseases. Biochem Soc Trans 1 December 2000; 28 (6): 917–920. doi: https://doi.org/10.1042/bst0280917
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