1000 resultados para Illinois.


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During the spring of 1987, 1,215 samples of spring oats (Avena sativa L.) were collected in Madison, Champaign, Woodford, Warren, and DeKalb counties, Illinois. At each site on each of three sampling dates, 45 samples were collected (regardless of symptoms) in a W pattern in I ha and tested for the PAY, MAV, RPV, and RMV serotypes of barley yellow dwarf virus (BYDV) by direct doubleantibody sandwich enzyme-linked immunosorbent assay (ELISA). RMV was not detected at any location. PAY and RPV were detected at all locations, as early as 17 April in Champaign County. The incidences of P A V and RPV from all plants sampled ranged from 2 to 64% and from 2 to 88%, respectively. Highest incidences of both strains were in May samples [rom Woodford County. MAV was detected in lower incidences (2-16%) only in samples from the central region of the state (Champaign, Woodford, and Warren counties). The presence of MA V serotypes was confirmed in triple-antibody sandwich ELISA with the MA V -specific MAFF2 monoclonal antibody from L. Torrance. In the last previous survey for BYDV in Illinois during 1967-1968 (1), about 75% of the isolates were PAY and about 20% were RPV; single isolates of RMV and MAV were found. Twenty years later, 55% were PAY, 39% were RPV, and 6% were MAV.

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Cabinet card photographic portrait of Colum C. Chapman in his National Guard uniform, Chicago, Illinois, ca. 1890.

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Studio portrait of Frank M. Chapman, Jr. son of Frank M. and Wilhelmina Chapman, Chicago, Illinois, ca. 1891.

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Studio portrait of Frank C. Chapman, Chicago, Illinois, ca. 1890.

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Label on card stock for "Clarke & Chapman, Packers and Jobbers of Green Apples, Macomb, Illinois, 1870-1878"

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Cabinet card portrait of Wilhelmina Zillen Chapman, mother of Grant Chapman and grandmother of Joyce Chapman, taken by G. D. Morse, Chicago, Illinois, July, 1892.

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Charles C. Chapman and his wife, Lizzie Pearson Chapman, with baby daughter Ethel in a hammock, Chicago, Illinois, ca. 1885.

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Cabinet card photographic portrait of Nancy Wallace Pearson Heppenstall [1834-1916], taken in the studio of William Johnston, Abington, Illinois. She was the mother of Lizzie Pearson Chapman, wife of Charles Clarke Chapman.

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Cabinet card photographic portrait of E. Joe Clarke, taken in the Root studio, Monmouth, Illinois.

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Unidentified studio portrait of a member of the Chapman family, taken in the Teitzell Studio, Hattoon, Illinois.

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Residence [written over photograph: "Home 1916-1919"], possibly Sterling, Illinois, ca. 1919.