Pythium Graminicola Subr. on Barley
Date
2017-06-05
Authors
Ho, Wen-Chun
Meredith, C.
Melhus, I.
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Extension and Experiment Station Publications
It can be very challenging to locate information about individual ISU Extension publications via the library website. Quick Search will list the name of the series, but it will not list individual publications within each series. The Parks Library Reference Collection has a List of Current Series, Serial Publications (Series Publications of Agricultural Experiment Station and Cooperative Extension Service), published as of March 2004. It lists each publication from 1888-2004 (by title and publication number - and in some cases it will show an author name).
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Extension and Experiment Station Publications
Abstract
Pythium graminicola was constantly isolated from infected roots of barley grown on the experimental plots of the Northern Iowa Agricultural Experimental Farm, Kanawha, and from plants grown on the plots at the Agronomy Farm at Ames, Iowa, in 1936 to 1939, inclusive.
The symptoms of Pythium graminicola on barley were: Seed decay, seedling blight, root necrosis, yellowing and curling of leaves and stunting. Pythium root necrosis was very severe in 1936 and in 1938. The injury to the seedlings was greater at high temperature than at low. The pathogen grew very slowly at 15° c., which may in part explain the larger yields incident to early seedings.