Ecotypic Adaptation in Sitanion hystrix

Ecology ◽  
1975 ◽  
Vol 56 (6) ◽  
pp. 1407-1415 ◽  
Author(s):  
Warren P. Clary
Keyword(s):  
Sitanion Hystrix

Septoria passerinii. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
Geographical Distribution ◽  
Crop Residues ◽  
Poa Pratensis ◽  
Lolium Multiflorum ◽  
Barley Straw ◽  
Linear Lesions ◽  
Hordeum Jubatum ◽  
Combine Harvester ◽  
Sitanion Hystrix ◽  
Hystrix Patula

Abstract A description is provided for Septoria passerinii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Hordeum brachyantherum, Hordeum distichon, Hordeum jubatum, Hordeum secalinum, Hordeum vulgare, Hystrix patula, Lolium multiflorum, L. perenne, L. temulentum, Poa pratensis and Sitanion hystrix. DISEASE: Speckled leaf blotch of barley. Forming linear lesions with indefinite margins on leaves with very small, dark brown pycnidia embedded in tissues developing on straw-coloured blotches and causing defoliation, low yields and formation of light kernels. GEOGRAPHICAL DISTRIBUTION: Africa (Ethiopia, Libya); Australasia & Oceania (Australia); Europe (Bulgaria, Cyprus, Denmark, Germany, Italy, Netherlands, Rumania, Spain, U.K.); North America (Canada, U.S.A.). TRANSMISSION: The pathogen overwinters as mycelium or as pycnidia in crop residues, producing macrospores and microspores the following summer. High humidity (>93% R.H.) is required for the release of spores which are formed abundantly on infected material after rain. Spores may be spread by insects or splashing raindrops (44, 1528; 46, 106; 40: 530). Dissemination of the pathogen on barley straw residues has also been attributed to the use of combine harvester-threshers in Western Canada (35: 418) and to high winds in Minnesota, U.S.A. (40: 530).

Respiratory Acclimation of Phleum alpinum and Sitanion hystrix

1973 ◽  
Vol 90 (1) ◽  
pp. 190
Author(s):  
David H. Hansen ◽  
Lionel G. Klikoff
Keyword(s):  
Sitanion Hystrix

Synthetic Hybrids of Agropyron dasystachyum x Elymus glaucus and Sitanion hystrix

1968 ◽  
Vol 129 (4) ◽  
pp. 309-315 ◽  
Author(s):  
Douglas R. Dewey
Keyword(s):  
Synthetic Hybrids ◽  
Sitanion Hystrix ◽  
Elymus Glaucus

Temperature Dependence of the Oxidative Rates of Mitochondria in Danthonia intermedia, Penstemon davidsonii and Sitanion hystrix

Nature ◽  
1966 ◽  
Vol 212 (5061) ◽  
pp. 529-530 ◽  
Author(s):  
LIONEL G. KLIKOFF
Keyword(s):  
Temperature Dependence ◽  
Sitanion Hystrix

Synthetic Hybrids of Elymus canadensis x Sitanion hystrix

1967 ◽  
Vol 128 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Douglas R. Dewey
Keyword(s):  
Synthetic Hybrids ◽  
Elymus Canadensis ◽  
Sitanion Hystrix

Postfire Defoliation Response of Agropyron spicatum and Sitanion hystrix

1994 ◽  
Vol 4 (2) ◽  
pp. 77 ◽  
Author(s):  
SJ Jirik ◽  
SC Bunting
Keyword(s):  
Biomass Production ◽  
Prescribed Fire ◽  
Basal Area ◽  
Livestock Grazing ◽  
Management Tool ◽  
Phenological Stage ◽  
Late Season ◽  
Fuel Accumulation ◽  
Sitanion Hystrix ◽  
Agropyron Spicatum

Prescribed fire is an important management tool to increase herbaceous productivity and maintain seral communities of Intermountain sagebrush grasslands. Currently, pastures treated with prescribed fire are rested from livestock grazing before burning to allow fine fuel accumulation, and rested a full year following burning to restore bunchgrass vigor. This study examined the post-fire defoliation response of Agropyron spicatum and Sitanion hystrix to three different defoliation treatments: an early season defoliation during the boot phenological stage, late season defoliation after seedset, and non-defoliation. Plant response to these defoliation timings was compared to determine the amount of non-use required to restore vigor to these species following fire. Mortality was low for late and non-defoliated plants of both species. Results indicate no differences between late season and non-defoliated plants for biomass production, basal area, or culm number for Agropyron. No differences in Sitanion culm number resulted between the late and non defoliated treatments. Sitanion biomass production differed between late and non-defoliated treatments at Emmett, but not at Craters of the Moon. Basal area and culm number of late and non-defoliated plants of both species increased as compared to the first post-burn season.

Natural Hybrids of Elymus cinereus x Sitanion hystrix

1962 ◽  
Vol 89 (4) ◽  
pp. 217 ◽  
Author(s):  
Douglas R. Dewey ◽  
A. H. Holmgren
Keyword(s):  
Natural Hybrids ◽  
Sitanion Hystrix

Natural and Synthetic Hybrids of Agropyron spicatum x Sitanion hystrix

1964 ◽  
Vol 91 (5) ◽  
pp. 396 ◽  
Author(s):  
Douglas R. Dewey
Keyword(s):  
Synthetic Hybrids ◽  
Sitanion Hystrix ◽  
Agropyron Spicatum ◽  
Natural And Synthetic

Synthetic Hybrids of Agropyron caespitosum x Agropyron dasystachyum and Sitanion hystrix

1968 ◽  
Vol 129 (4) ◽  
pp. 316-322 ◽  
Author(s):  
Douglas R. Dewey
Keyword(s):  
Synthetic Hybrids ◽  
Sitanion Hystrix
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