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of 78
pro vyhledávání: '"Kenneth B. Johnson"'
Publikováno v:
Phytobiomes Journal, Vol 4, Iss 2, Pp 178-192 (2020)
Winter squash (Cucurbita maxima) is produced in Oregon’s Willamette Valley for edible seeds, processing, and fresh markets. Recently, prominent cultivar Golden Delicious has experienced significant yield losses due to a soilborne disease. Symptoms
Externí odkaz:
https://doaj.org/article/25b1f72742624e47854ea26e5931fa75
Autor:
Kenneth B. Johnson
“An enjoyable ramble... the memoir of an unassuming, self-doubting aviator who, despite himself, proved to be pretty bloody good.” —Aircrew Book Review Many stories abound of the daring exploits of the RAF's young fighter pilots defying the mig
Publikováno v:
Crop Protection. 112:246-251
Suppression of bacterial canker disease of sweet cherry caused by Pseudomonas syringae pv. syringae (Pss), utilizing resistant scion and rootstock varieties holds promise as a cost-effective management strategy. However, a reproducible and rapid meth
Publikováno v:
Plant disease. 81(4)
Antagonistic effects of Aureobasidium pullulans, Epicoccum purpurascens, and Gliocladium roseum on establishment of Monilinia fructicola infections on cv. Royal Anne cherry blossoms were assessed in a mist chamber and under field conditions. Conidia
Publikováno v:
Plant disease. 81(4)
Inheritance of resistance to eastern filbert blight, caused by Anisogramma anomala, in European hazelnut (Corylus avellana) was evaluated in the progeny of seven cultivars crossed in 12 combinations. The progeny were subjected to inoculation with A.
Autor:
John Maas, H. G. Montano, Rasa Jomantiene, Kenneth B. Johnson, Joseph Postman, Robert E. Davis
Publikováno v:
Plant disease. 84(1)
During investigations into the cause of a stunt syndrome affecting cultivated European hazelnut trees (Corylus avellana L.) in Oregon, the clover yellow edge (CYE) phytoplasma was detected for the first time in this crop. The cause of hazelnut stunt
Publikováno v:
Plant disease. 88(1)
We investigated adaptation of fire blight forecasting concepts to incorporate and optimize the use of biological agents for disease suppression. The effect of temperature on growth of the bacterial antagonists, Pseudomonas fluorescens A506 and Pantoe
Autor:
Walter F. Mahaffee, Kenneth B. Johnson
Publikováno v:
Plant disease. 94(5)
Johnson, K. B., and Mahaffee, W. F. 2010. Factors influencing epidemiology and management of blackberry rust in cultivated Rubus laciniatus. Plant Dis. 94:581-588. The blackberry rust pathogen Phragmidium violaceum was first observed in Oregon in spr
Autor:
Todd N. Temple, Kenneth B. Johnson
Publikováno v:
Plant disease. 95(4)
Fire blight of pear and apple is frequently an inoculum-limited disease but weather-based forecasting models commonly assume that the pathogen is omnipresent. To improve fire blight risk assessment during flowering, we developed a rapid pathogen dete
Publikováno v:
Plant disease. 97(12)
Temple, T. N., du Toit, L. J., Derie, M. L., and Johnson, K. B. 2013. Quantitative molecular detection of Xanthomonas hortorum pv. carotae in carrot seed before and after hot-water treatment. Plant Dis. 97:1585-1592. Molecular assays to detect and qu