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Full-Text Articles in Social and Behavioral Sciences
Effects Of Planting Date On Development Of Net Blotch Epidemics In Winter Barley In Pennsylvania, Leslie M. Delserone, H. Cole Jr.
Effects Of Planting Date On Development Of Net Blotch Epidemics In Winter Barley In Pennsylvania, Leslie M. Delserone, H. Cole Jr.
UNL Libraries: Faculty Publications
The influence of planting date on fall and spring net blotch epidemics (caused by Pyrenophora teres) was evaluated with the winter barley cultivar Pennrad. Experiments were conducted in Centre County, Pennsylvania, in 1982 and 1983 and in Lancaster County, Pennsylvania, in 1983. The three planting dates evaluated corresponded to the recommended date as well as dates I wk earlier and later than recommended for each specific location. Planting date had a significant influence on fall net blotch epidemics, with the greatest and least disease severities observed in the earliest and latest plantings, respectively. When spring environmental conditions were warm …
The Effects Of Infections By Pyrenophora Teres And Barley Yellow Dwarf Virus On The Freezing Hardiness Of Winter Barley, Leslie M. Delserone, H. Cole Jr., J. A. Frank
The Effects Of Infections By Pyrenophora Teres And Barley Yellow Dwarf Virus On The Freezing Hardiness Of Winter Barley, Leslie M. Delserone, H. Cole Jr., J. A. Frank
UNL Libraries: Faculty Publications
Single and mixed infections by Pyrenophora teres and two isolates of barley yellow dwarf virus (BYDV) were evaluated for their effects on the resistance to freezing stress of crowns of the winter barley cultivar Pennrad. Plants received one of several treatments: P. teres; either the RMV-NY or PAV-NY isolate of BYDV; RMV + P. teres; PAV + P. teres; or infestation with either nonviruliferous Rhopalosiphum maidis or R. padi. After the treatments, foliage and roots were harvested from 4-wk-old plants to evaluate the effects of infection(s) on top and root growth before freezing. The crowns were subjected to a controlled …