Journal
TROPICAL PLANT PATHOLOGY
Volume 35, Issue 1, Pages 48-51Publisher
SOC BRASILEIRA FITOPATHOLOGIA
DOI: 10.1590/S1982-56762010000100008
Keywords
Glycine max; evaluation of resistance; plant breeding
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Funding
- Agencia Nacional de Promocion Cientifica y Tecnologica, Argentina
- [BID 1201/OC-AR PICT 08-09890]
- [BID 1728/OC-AR PID 22995-04]
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The objective was to evaluate the reaction of introduced edamame edible soybean germplasm against Soybean stem canker (SSC), caused by Diaporthe phaseolorum var. meridionalis (Dpm) and D. phaseolorum var. caulivora (Dpc) in the humid Pampa of Argentina. Thirty edamame genotypes were evaluated in greenhouse conditions using an experimental design in blocks with two replications, over two years. Edamame germplasm showed a different degree of resistance to five Diaporthe phaseolorum isolates. The existence of inter- and intra-varietal differences in Dpm and Dpc virulence were also found, verifying that genes conferring resistance to Dpm and Dpc are different. This study showed that genetic variability does exist in edamame germplasm and would be useful in breeding for resistance or tolerance.
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