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Investigations were conducted at CIAT to develop methodology required to evaluate resistance to Isariopsis griseola inherent in bean germplasm and breeding progeny. Abundant sporulation by the pathogen has been achieved by growing isolates in the lab. on V-8 medium incubated at 19 degrees Celsius...


Álvarez Ayala, G.Schwartz, Howard F.[Preliminary investigations of pathogenic variability expressed by Isariopsis griseola]Preliminary investigations of pathogenic variability expressed by Isariopsis griseola
Hill, J.P.Schwartz, Howard F.Salgado, M.Farrera, R.E.[Effects of sub-lethal applications of propiconazole on bean rust]Effects of sub-lethal applications of propiconazole on bean rust

High incidence of Uromyces phaseoli and Pseudomonas syringae pv. phaseolicola was reported in Pinto and Great Northern bean fields in SW Nebraska and NE Colorado (USA) in 1981. Pinto beans showed other symptoms that, after isolation and tests, were found to be caused by P. syringae pv. syringae. ...


Steadman, James R.Schwartz, Howard F.[Rust and halo blight epidemics, and the first report of bacterial brown spot in western Nebraska and eastern Colorado]Rust and halo blight epidemics, and the first report of bacterial brown spot in western Nebraska and eastern Colorado

A description is given of the format of the International Bean Rust Nursery (IBRN) established during a 1974 workshop of research workers from various countries. The objectives of the IBRN are to (a) identify cv. and breeding lines resistant to a wide spectrum of the pathogenic potential inherent...


Schwartz, Howard F.[The International Bean Rust Nursery format]The International Bean Rust Nursery format

A rapid, reliable laboratory-screenhouse technique was developed to evaluate bean germplasm for resistance to and detect pathogenic variability of Fusarium oxysporum. (CIAT)


Salgado, M.Schwartz, Howard F.[Fusarium wilt screening technique for dry bean development]Fusarium wilt screening technique for dry bean development
McMillan, M.S.Vaughn, M.R.Schwartz, Howard F.[Occurrence of the perfect stage of bean rust in Colorado]Occurrence of the perfect stage of bean rust in Colorado

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